AU674836B2 - Process for Making Pieces of Jewellery and Patterns - Google Patents

Abstract

In order to produce pieces of jewellery with one or several set stones, a master pattern with settings for the stones is produced, a master mould is produced by moulding from the master pattern, a model is produced in the master mould with a castable or injection mouldable modelling mass that can be ejected by heating from the master mould, the stones are inserted into the model and set by deformation of the setting, a casting mould is produced by embedding the model in a fire-resistant moulding mass and by ejecting the modelling mass from the casting mould, metal is cast into the casting mould by a spin casting or vacuum moulding process and the piece of jewellery is removed from the mould once the metal has cooled down.

Description

OPI DATE 28/06/93 APPLN. ID 30845/92 AOJP DATE 02/09/93 PCT NUMBER PCT/EP92/02792 AU9230845 (51) Internationale Patentklassiflkation 5 (11) Internationale Vf.r6ffentlichungsnummer: WO 93/10686 A44C 17/04, B22D 25/02 Al (43) Internatioiiales; 10. Juni 1993 (10.06.93) (21) Internationales; Aktenzeichen: PCT/EP92/02792 Verbiffentlicht Mit interiionalern Rechercijenberida.

(22) Internationales Anmeldedatum: Vor Ablauf derfiir 4nderungen der Ansprilche zugelasse- 3. Dezember 1992 (03.12.92) nen Frist. Vertoffentliclwng Wvrd iviederliolt falls iderungeti eintreffen.

Prioritdtsdaten: P 41 40 121.2 5. Dezember 1991 (05,12.91) DE (71)(72) Anmelder und Erfinder: MOLLER, Manfred [DE/DE]; Steinenlandstrasse 14, D-7530 Pforzheim-Eutingen (DE).

(74) Anwfilte: TWELMETER, Ulrich usw. Westliche Karl- Friedrich-Str. 29/31, D-7530 Pforzheim (DE).

(81) llestimmungsstaaten: AU, CA, CS, Fl, HU, JP, PL, US, europflisches Patent (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).

6 4836A (54)Title: PROCESS FOR PRODUCING CAST AND SET PIECES OF JEWELLERY (54) Bezeichnung: VERFAHREN ZUM HERSTELLEN VON GtrFASSTEN, GEGOSSENEN SCHMUCKSTOCKEN (57) Abstract In order to produce pieces of jewellery with one or several set stones, a miaster pattern with settings for the stones is produced, a master mould is produced by moulding from the master pattern, a model is produced in the master mould with a castable or injection mouldabl~e modelling mass that can be ejected by heating from the master mould, the stones are inserted into the model and set by deformation of the setting, a casting mould is produced by embedding the model in a fire-resistant moulding mass and by ejecting the modelling mass from the casting mould, metal is cast into the casting mould by a spin casting or vacuum moulding process and the piece of jewellery is removed from the mould once the metal has cooled down.

(57) Zusammenfassung Schmuckst~cke mit einem oder mehreren gefalten Steinen werden hergestellt durch Herstellen eines Urmodells mit Fassungen fOr die Steine, Herstellen einer Urform durch Abformen des Urmodells, Herstellen eines Modells aus einer yieg- oder spritzgiegfdihigen, durch Erhitzen austreibbaren Modelliermasse in der Urform, Einsetzen der Steine in das Modell und Fassen der Steine durch Verformen der Fassung, H-erstellen einer Giefform durch Einbetten des Modells in eine feuerfeste Formmasse unid Austreiben der Modelliermasse aus der Giegform, GieLgen von Metall in die Giegform nach dem Verrahren des Schleudergieliens oder Vakuumgiebens und Entformen des SchmuckstOcks nach Abk~hlung des Metalls.

Process of Making Set Cast Pieces of Jewellery This invention relates to a process having the features recited in the prior art part of claim i.

DE-38 24 574 Al describes a lost-wax melting process of 5 making pieces of jewellery. In the process a master pattern of the piece of jewellery is made first and is used to make a master mold. To make the mold, the master pattern may be placed into a flask and a molding composition, a twocomponent silicone-rubber mixture, may be poured into the 10 flaks and cured therein. The resulting body may then be dissected into two halves and the master pattern may then be taken. Alternatively the master pattern may be placed between two blocks of thermoplastic material, which are then heated under pressure until they are 15 plastically deformed and hug the master pattern so that a faithful impression of the master pattern is 4 formed in the two blocks (DE-35 46 188 Al). Because the resulting bipartite master molds usually consist of elastomeric material, they are sometimes called rubber molds. A pattern-making composition, particularly a wax, is then charged into such a master mold by casting or injection molding. When the pattern-making composition gas been cooled, the master mold is opened and the pattern is taken. A plurality of patterns are usually assembled to form a pattern tree, which is then embedded into a refractory molding composition. The molding S2 composition will be regarded as "refractory" if it withstands without deformation the action of a molten metal from which the piece of jewellery is made. When the pattern tree has been embedded in the refractory molding composition, the pattern-making composition of which the pattern tree is made is expelled being heated. If the pattern-making composition is a wax or a low-melting metal, it will be melted out (lost-wax casting process).

If the pattern-making composition is a plastic, it will 10 be burnt out. The molten metal is then poured into the .casting mold thus made. To ensure that the metal from which the pieces of jewellery are to be made will penetrate into the last corners and branches of the casting mold, the latter is rotated during the pouring 15 (centrifugal casting) or the pouring is assisted by the application of a vacuum (vacuum casting). When the tree i •consisting of the pieces of jewellery has solidified and cooled, it is removed and the pieces of jewellery are separated from each other.

-3- In the making of pieces of jewellery comprising one or more set jewels it is also already known to embed such jewels in the casting. For that purpose a master pattern of the piece of jewellery in which the jewels are set is 4 made and that master pattern is used to make the master mold, which is a negative replica of the piece of jewellery and has openings for the jewels. The jewels for the piece of jewellery are inserted into said openings of the master mold, into which the pattern-making composition is then poured or injected. The resulting pattern of the piece of jewellery is processed further as described hereinbefore.

But it is difficult to place the jewels into the master mold in the correct positions and so to fix them that after the pouring or injecting of the pattern-making composition the f jewels will exactly have the positions which they are intended to occupy in the subsequently made piece of jewellery.

The position of the jewels is often changed as they are embedded in the poured oi injected composition and the extent S9 to which the jewels are embedded in the injected composition Smay vary from pattern to pattern. This ray also be caused by a variation of the jewels from each other.

From French Patent Specification 1,599,866 it is alrt I known to embed jewels in a wax pattern, to assemble suci .ax patterns in a wax pattern tree and to process them d further to make cast pieces of jewellery by a lost-wax casting process. But in that case the pieces of jewellery are not inserted on the wax pattern into a setting but are inserted into a wax pattern which has been made without a setting. As a result, the cast piece of jewellery also fails 0 to have a separate setting for the jewels.

4 From FR-A-2,366,812 it is known to make a master pattern in which a jewel is set in a setting which has already its final shape, whereafter the jewel is carefully taken out so that the setting is not changed, and the empty master pattern is used to make a rubber mold, in which a plastic pattern is then cast with a setting into which the jewel is inserted. Such patterns are then assembled to form a pattern tree, which is embedded in gypsum, whereafter the plastic is expelled and noble metal is cast into the re- /0 sulting casting mold. That practice has the disadvantage that the pattern must he made from a material which is so elastic that jewels can be inserted into the finished setting. Difficulties will arise with the usually employed pattern waxes because they are inelastic. For this reason s/ it is recommended in FR-A-2,366,812 to use a plastic, which is expelled by a two-stage thermal process, namely, by melting followed by a shocklike heating to the temperature which is required for the casting of the metal and at which the :e plastic is decomposed. A further disadvantage resides in 0 that the jewel will not firmly be retained unless it has exactly the same size and shape as the jewel that had been inserted into the master pattern and this will not be the case, as a rule, so that expensive subsequent work on the cast piece of jewellery will be required.

ds It is an object of the invention so to improve the process described first hereinbefore that exactly fitting jewels in the piece of jewellery will be obtained in the simplest possible manner without a need for subsequent setting work on the piece of jewellery.

According to a first aspect of the present invention there is provided a process for making pieces of jewellery comprising one or more set of jewels by the following steps: a) producing a master pattern with empty settings for the jewels; b) producing a master mould by moulding from the master pattern before any jewels are inserted into it; c) producing a pattern in the master mould using a castable or injection mouldable wax as the moulding mass, tile wax being ejectable from tile master mould by hleating; inserting the jewels into thle settinlgs of tile pattern; e) plastically deforining the settings of the pattern to fix eachl jewel in~to its setting; 1j producing a casting nmould by embliedding the model in a refractory moulding material and expelling the patternl making composition; 15 g) pouring metal in~to the casting mould; and hi) remloving tile piece of jeweliery from the mould, once the metal ihas solidified.

Ill a seconld aspect of tile presenlt invenltion there is provided a process of making patterns from a wax as a pattern-making compositionl whlich canl be 20 cast or injection-inoulded and can be expelled by being heated, for use in a process of making pieces of jeweller'y comlprising olie or a plurality of set 0jewels, wihereinl a casting mould is mlade by embedding tile pattern in a 0 0refractory moulding composition, aild subsequently expelling tile patternmlaking com-position, pouring metal into tile casting mlould amnd removing tile piece of jewellery from the nmould after time metal ilas solidified, conmprising tile steps of: a) producing a mlaster pattern withl empty settinlgs for the jewels; b) producing a master mould by moulding from tile master pattern before any jewels are inserted into it; c) producing a patternl in tile master mould using a castabie or injection mouldable wax as tile moulding mass, the wax being ejectable from the master mould by heating; di) inlsertinlg tile jewels inlto tile settings of time pattern; amnd e) plastically deforming the settings of the pattern to fix each jewel into its setting, -6- In the process in accordance with the invention, just as in the known process, a master pattern of the piece of jewelle'ry to be made is made first. That master pattern has one or more settings in dependence on the number of d" the intended jewels, but the jewels are not inserted into the master pattern. For instance, in a pin setting the pins intended to set the jewels are not bent inwardly but are maintained in their original orientation. The master pattern, into which a jewel has not yet been inserted, is then used /o to make a negative mold as a master mold and a pattern of the piece of jewellery is cast in that master mold. In that case the pattern-making composition preferably consists of 040: a wax.

oo The pattern thus made is then provided with jewels in that the tatter are inserted into the settings provided for that purpose. Because the pattern is a positive replica of the piece of jewellery, the jewels can be inserted into the settings from the entirely exposed top surface of the piece of jewellery, as is the case with an original piece of jewellery but it is not necessary to insert them into difficultly accessible openings of a negative mold (master mold) in a difficult operation as in the lost-wax casting process. The insertion of the jewels into the settings of the pattern made of the pattern-making composition (partioS cularly of a wax pattern) may be effected, by means of a slender vacuum applicator, which is used to suck and hold the jewel and to insert the jewel into the setting, the jewel is then left in the setting when the suction air has been shut off. Thereafter the jewel needs only to be fixed in the setting. The jewels are preferably fixed in their settings in that the settings are softened by the action of heat and are plastically deformed. This is preferably accomplished in that a tool which conforms to the top end of the setting is heated and engaged with the setting and is -7forced against the jewel so that the setting is deformed in a single step. TiOs is possible not only with pin or tab settings, which locally embrace the jewels as with fingers, but also with frame settings, which embrace the jewel throughout its periphery. In case of a frame setting the tool for plastically deforming the setting will suitably consist of a tool which has at its tip a framelike contact surface and that surface will be engaged with the rim of the frame setting and forced against the peri- /0 pheral edge of the jewel.

In case of a pin setting or a tab setting, on the other hand, it is desirable to employ a tool which has projections which correspond to the positions of the pins or tabs and when the tool has been heated are placed on the pins or tabs so that they are softened and flow and embrace the adjacent edges of the jewel; this can be accomplished by a short contact with the tool. It has been found that it is not necessary to deform all pins or tabs to fix the jewels because a pin which has been deformed under the 0 0 action of heat will more closely contact the edge of the jewel than a metal pin which is forced against the edge of the jewel in the conventional manner. For this reason only part of the pins or tabs are preferably deformed in pin or tab settings whereas the other pins or tabs are left undeoi formed. In that case the still undeformed pins will provide the customary appearance of a conventional pin setting although some pins have been diformed. In a pin setting comprising four pins per jewel, only two mutually opposite pins will preferably be deformed in a setting that comprises six pins.

The jewels can be so easily inserted into and fixed in the model that said operation can perfectly be performed even by unskilled labors after a brief instruction.

-8- For this reason the process in accordance with the invention can be adopted to special advantage for the industrial mass production of pieces of jewellery. Even in the trial phase of the process in accordance with the invention it o$ has been found that the costs of setting jewels can be drastically reduced: In comparison with the conventional technique, in which the jewels are inserted into the cast ring rail, the setting costs can be decreased to 1/10 and in comparison with the conventional lost-wax casting pro- /o cess the costs can still be reduced to 1/4.

se The further processing of the pattern made in accordance with the invention is performed in the manner which is known per se for the centrifugal casting or vacuum casting of pieces of jewellery. This will be explained in the example described hereinafter.

A master pattern of metal is made in a manner known per se for a piece of jewellery consisting, of a ring, which is to be provided with a plurality of jewels.

The master pattern has pin settings for the jewels but the 6 2 06 jewels are not inserted. The master pattern is placed between two blocks of a thermoplastic silicone elastomer, which are subsequently heated and forced against each other. As a result, ihe silicone elastomer is plastically deformed to hug the master pattern so that a faithful impression of the dS master pattern is formed in the two blocks. The two blocks which have thus been deformed constitute the two parts of a master mold, int. which a wax is subsequently injected.

When the wax has been cooled, the master mold is opened and the wax pattern of the piece of jewellery is taken. There- 3 after a vacuum applicator is osed to insert the intended jewels into and fix them in the settings which are formed in the wax pattern and consist each, of four pins.

This is accomplished in that a forkllke tool having prongs -9which are electrically heated and are spaced apart like two mutually opposite pins is engaged with two mutually opposite pins of a given setting and is slightly forced against the latter so that the pins are softened and upset Sand embrace the adjacent edge of the jewel. Thereafter, a wax pattern tree is made in a manner known per se from a number of wax models thus made and is inserted into a flask, into which a fine gypsum, such as alabaster, is poured.

When the gypsum has set, the flask is heated so that the /0 wax is molten out and the gypsum cast of the wax pattern tree is left in the flask. The flask is heated to a temperature of about 750 0 C and is inserted into a centrifugal casting machine and a molten 14-carat gold alloy is poured 0' into the flask and is permitted to solidify in the rotating /iS flask. When the flask has been cooled to about 40 0 C the gyp- S• sum is crushed to expose the cast tree. The pieces of jewellery are then severed from the tree and cleaned and optioo" nally polished.

The described process is particularly suitable 0:"i o20 for pieces of jewellery comprising small jewels which can be G:o*:I set with short pins having a length not in excess of or 3 mm.

Claims (12)

1. A process for making pieces of jewellery comprising one or more set of jewels by the following steps: a) producing a master pattern with empty settings for the jewels; b) producing a master mould by moulding from the master pattern before any jewels are inserted into it; c) producing a pattern in the master mould using a castable or injection mouldable wax as the moulding mass, the wax being ejectable from the master mould by heating; d) inserting the jewels into the setiings of the pattern; e) plastically deforming the settings of the pattern to fix each jewel into its setting; producing a casting mould by embedding the model in a refractory moulding material and expelling the pattern making composition; 15 g) pouring metal into the casting mould; and h) removing the piece of jewellery from the mould, once the metal has solidified.

2. A process of making patterns from a wax as a pattern-making composition which can be cast or injection-moulded and can be expelled by lheing heated, for use in a process of making pieces of jewellery comprising one Sor a plurality of set jewels, wherein a casting mould is made by embedding the pattern in a refractory moulding composition, and subsequently expelling the pattern-making composition, pouring metal into the casting mould and removing the piece of jewellery from the mould after the metal has solidified, comprising the steps of: a) producing a master pattern with empty settings for th'e jewels; b) producing a master mould by moulding from the master pattern before any jewels are inserted into it; c) producing a pattern in the master mould using a castable or injection mouldable wax as the moulding mass, the wax being ejectable from the master mould by heating; d) inserting the jewels into the settings of the pattern; and e) plastically deforming the settings of the pattern to fix each jewel into its set ig,

3. A process according to claim 1 or 2, characterised in that the settings are thermally deformed, 11

4. A process according to claim 3, characterised in that a tool which conforms to the top end of a given setting is heated and engaged with the setting and the setting is deformed in a single step and in that pressure is applied to the tool.

5. A process according to any of the preceding claims, characterised in that the settings are only locally deformed.

6. A process according to claim 5, characterised in that in pin or tab settings, only a part of the pins or tabs is deformed.

7. A process as claimed in any preceding claim and substantially as hereinbefore described.

8. A piece of jewellery made by a method as claimed in any one of the preceding claims when appended to claim 1. 0* 0 S 4 Dated this eleventh day of November 1996 MANFRED MUELLER Patent Attorneys for the Applicant: *E* F.B. RICE CO. 4 0 6 0 INTERNATIONAL SE ARCH REPORT Interniational application No. PCT/EP 92/02792 IA. CLSSCA7ON OF SUBJECT MATTER Int.Cl. 5 A44C17/04; B22D25/02 According to International Patent Classification or to both national classification and IPO B. FIELDS SEARCHED Minimum documentation searched (classification system followed by classification symbols) Int.Cl. 5A44C B22D Documentation searched other than minimum documentation to the extent that such documents axe included in the fields searched Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) C. DOCUMENTS CONSIDERED TO BE RELEVANT Category$ Citation of document, with indication, where appropriate, of the relevant passage.% Relevant to claim No. V FR,A,2 366 812 (DUPLJESSY 1,2,3,9 May 1978 see the whole document A FR,A,2 352 511 E. HAMMER Sb5HNE) 1,9,12, 23 December 1977 13 see page 2, line 13 page 5, line 24; figures 1,2 A US,A,4 392 289 MICHAUD) 1,2,8,9 12 July 1983 see column 3, line 33 column 5, line figures 1-7 A US,A,4 630 346 M. SINGER) 23 December 1986 ElFurther documents are listed in the continuation of B~ox C. See patent family annex. 0 Special categories of cited documents:, IT later document published after tbeinternational fling date or priorty document defining the general state of the art which Is not considered date and not in conflict with the application but cited to uon-ersuind to b~e 0* particular relevance the principle or tbeory underlying the Invention earlier document but published on or after The international filing date 'W document of particular relevance; the claimed Invention cannot be ocuentwhih my trow wjbs o proriy caimconsidered covel or cannot be considce~e to involve an inventive "L"docmet wichma thow o'btson ririt ciit(s) or which is step when the document is taken alont cited to establish the publication date of another citation or other special reason (as specdls4d) document of particular relevance; the ctlmed Invention cannot he document refetring to an oral disclosure, use, exhibition, or other considered to involve an inventive step when the docuinent is means combl'3u with one ormome othersuch documents,such combination 1"document published prior to the International filing date but later than en ovostapeo kildnthar the priority date eh-.med document member of the same patent family Date of the actual completion of the in2ternational search Date of mailing of the international search report 22 March 1993 (22.03.93) 14 April 1993 (14.04.93) Name and mailing address of the ISA/ Authorized officer EUROPEAN PATENT OFFICE Facsimile No. Telephone No. Formi PCT/lSA/210 (second sheet) (July 1992) INTE RNATIONAL SEARCH REPORT international application No. PCT/EP 92/02792 C (Continuation). DOCUMENTS CONSIDERED TO BE RELEVANT Category' Citation of document, with indication, where appropriate, of the relevant passages i eeat to claim No. A rJS,A,3 601 178 MARTICO0RENA) 24 Auguast 1971 A EP,A,0 229 955 (JUWIEDOR GMBH) 29 July 1987 Form PCTIJSAI21O (continuation of second sheet) (July 1992) ANNEX TO THE INTERNATIONAL SEARCH REPORT ON INTERNATIONAL PATENT APPLICATION NO. 9202792 67180 TIs annex lists the patent family members relating to the patent documents cited in the above-mentioned international search reort. The members are as contained in the European Patent Office EDP file on The European Patent Office is in no way liable for these particulars which amt merely given for the purpose of informnation. 22/03/93 Patent document Publication Patent family Publication cited in search report I date I member(s) date FR-A-2?;66812 05-05-78 None FR-A-2352511 23- 12-77 DE-A- AT-B- BE-A- CH-A- GB-A- 'Jp-c- JP-A- JP-B- NL-A- SE-B- SE-A- US-A- 2623192 355894 854847 616572 1550015 1305040 52143171 60028484 7705383 421582 7705896 4154282 08-12-77

25-03-80 16-09-77 15-04-80 08-08-79

28-02-86

29-11-77 05-07-85 28-11-77 18-01-82 25-11-77 15-05-79 US-A-4392289 12-07-83 None US-A-4630346 23-12-86 US-A- 4793045 27-12-88 US-A-3601178 24-08-71 None EP-A-0229955 29-07-87 DE-A- 3544429 19-06-87 JP-A- 62202092 05-09-87 US-A- 4710276 01-12-87 0- M For more details about this annex:- see Official journal of the European Patent Office 1 No. 12182 INTERNATIONALER RECHERCHENBICH ~T PCT/EP Internationales; Aktenxeichen 92/02792 I. KLASSIFIKATION DES ANM4ELDUNGSGEGENSTANDS (bel mebreren Klassiflzionssymboien sind alie anzugeben) 6 Nach der lnternationaien Patenvilasifikiton (IPC) oder nach der natiornaln Kiassifikation und der IPC Int.KI. 5 A44C17/04; 822025/02 RECHERCHERTE SACHGEHIETE Recherchiener Mindestprilfstaff Klmsiflkationssrtcm Klasifikationssysoe Int.K1. 5 A44C B 220 Recherchierte nicht zum Mindestprkfstoff geisbreade Vertoffentiichungto, sovicit diese unter die redheadhlemen Sacbgebiete fallen a

111. EINSCHLAGIGE VEROFFENTUCHUNGEN 9 Art. 0 Kennzeichnung der Verbifentdiebungli soweit erfordedlich unter Angabe der mallgebiichen Toile t2 Mrt. Anspruch Nr.0 X FR,A,2 366 812 (DUPLESSY 1,2,3,9 Mai 1978 siehe das-ganze Dokument A FR,A,2 352 511 E. HAMMER SbHNE) 1,9,12, 23. Dezember 1977 13 siehe Seite 2, Zeile 13 Seite 5, Zeile 24; Abbildungen 1,2 A US,A,4 392 289 MICHAUD) 1,2,8,9 12. Juli 1983 siehe Spalte 3, Zeile 33 -Spalte 5, Zeile Abbildungen 1-7 A US,A,4 630 346 M. SINGER) 23. Dezember 1986 0 Dsonderc Kitegorien von angegebenen Veafifentlichungtn to Veettfentlichungi, die den aligemeinen Stand der Tecijoik T. S"Itere Veittifentlithung, die nach dem InternationaJcn An- definiert, aber n cht Ws besonders becleutsam anzusehen Ist meldvdatum oder dem Priorit~tsdatum verttffentiidst warden E' Wteres Dokument, das jedoch erst am odec naci, dem Intemna- Ist und mit der Anoseidung nicht kollidlert, sondern nur zum tionalen Anmeidedatuns verbffentiicht worden ist Verstgindnis des der Erfin dungt tugrunidilegenden Prinzips *I.'Vertifetlicungdieodoer I hr zlignandeiiegenden Theorie angegeban it 'L'eifetif chn, ie g et ist, einen Prloritlitsan~s ruch 1X VeroffentIidhung von besonderer Boieutung;.die beanspruch- zwefelaftersheienzu assen, oder durch die das 7Nr~. fentlichungsdatum einer andecen ins Rechezchenbeaiclht ge- te Erfindung kann nidht Wse neu odor auf euflnderischer Tktig- narinten Vertiffentlichung beegi werden soil oder die sus einem Witt benabund betradutet werden anderen besonderen Grund &Angeben ist (wit ausgefuhrt) 'Y Verbffentiichung von besondaee Dedeutuog die beanspntch Verttffentlichung,. die sich cuf tine matindliide Offenbarung, to Elftiung kILO nicht aJs Auf erloderi ohr Tltgke I b*. tuhend hetrachtet werden, wenn die Verttfftntiidhung mit tiedomug ie Ausstellung oder andere Mafloamen tiller odec menreren anderen Vertffeitlilchunn dieser Kate- bexicht gorie In Verbiodung gebracht wind und diese Verbindung fUn .1 Vertiffentlichung, die von dem internationalen Anoseideds. donen Fachmann ncbiegend ist turn, aber nach dent beanspruchten Prioritausdatum vedfet 1& Vectiffentfichung, die Mitglied denselben Patentfaraille Ist 1V. BESCIIEINIGUNG Datum des Abschiusses der intemnationalen Rechenche Absendedaturn does Internationalen, Rehechenbaichts 22.MAERZ 1993 14 04.93 Internationale Rcbencbenbehibrde Unterschrift des bevliichtiglen Bedlensteten EUROPAISCIJES; PATENTAMT GARNIER F.M.A. C. Freawlt PCTIISAMiI0t(Blatt 21 (JAMu lWs) PCT/EP 92/02792 lnternallonaies Aitenzlcben 11I. M1NSCIILAGIGE VEROEFFENTLICHUNGEN (Fortsezing von Mlan 2) Art~ Kernzeichnunigder Verfflentlichuag, sorwi erodelc une Anb de n~gelc Taile I Bar~. Ansrch Nr. A US,A,3 601, 178 MARTICORENA) 24. August 1971 A EPA,O 229 955 (JUWEDOR GMBH) 29. Juli 1987 FaowWM PCTIISA/110 tZmizdbVt.. Jamsaw 193S) ANHANG ZUM 1INTERNATIONALEN RECHERCHENBERICHT QBER DIE INTERNATIONALE PATENTANMELDUNG NR. EP 9202792 SA 67180 In diesem Anhang sind die Mitglieder der Patentfamiiien der im, obengesnten internstionalen Roechdenbtichzt angefiirten Pateutdokuwnte angegeben. Die Angahen fiber die Farnifienmitglieder entsrochen dem Stand der Datti des Europiiscen Patentanits am Diese Angaben dienen nur zur Untermchwnjj und erfolgen oboe Gewibe. 22/03/93 Im Rechervhenbericht Datum der Mlitglied(er) der I Datum der ungefuhbrtcs Pateutdokument Verliffantlichung IPaceotfamulic Verolfentlichung FR-A-2366812 05-05-78 Keine FR-A-2352511 23-12-77 DE-A- 2623192 08-1?.-77 AT-B- 355894 25-03-80 BE-A- 8E,4847 16-09-77 cH-A- 616572 15-04-80 GB-A- 1550015 08-08-79 JP-C- 1305040 28-02-86 JP-A- 52143171 29-11-77 JP-B- 60028484 05-07-85 NL-A- 7705383 28-11-77 SE-B- 421582 18-01-82 SE-A- 7705896 25-11-77 US-A- 4154282 15-05-79 US-A-4392289 12-07-83 Keine US-A-4630346 23-12-86 US-A- 4793045 27-12-88 US-A-3601178 24-08-71 Keine EP-A-0229955 29-07-87 OE-A- 3544429 19-06-87 JP-A- 62202092 05-09-87 US-A- 4710276 01-12-87 Fdr niherc Einzech zu ditseu Anhang siehe Amtsblntt des Europisehen Pattntanits, Nr,12182