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GB2012384A - Heat-Recoverable Metallic Coupling Members - Google Patents

Heat-Recoverable Metallic Coupling Members

Info

Publication number
GB2012384A
GB2012384A GB791377A GB7901377A GB2012384A GB 2012384 A GB2012384 A GB 2012384A GB 791377 A GB791377 A GB 791377A GB 7901377 A GB7901377 A GB 7901377A GB 2012384 A GB2012384 A GB 2012384A
Authority
GB
United Kingdom
Prior art keywords
heat
center
teeth
tooth
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB791377A
Other versions
GB2012384B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raychem Corp
Original Assignee
Raychem Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Raychem Corp filed Critical Raychem Corp
Publication of GB2012384A publication Critical patent/GB2012384A/en
Application granted granted Critical
Publication of GB2012384B publication Critical patent/GB2012384B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/004—Shrunk pipe-joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/77—Use of a shape-memory material

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Mechanical Operated Clutches (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

A coupling member comprises a tubular memory metal member which is heat-shrinkable or can be rendered heat-shrinkable in the radial direction, and which is provided on its inner surface with at least three teeth in the form of radially extending rings, the distance (t) between any pair of adjacent teeth being less than 0.95 d and less than 4 w, where d is the internal diameter of the tubular member, and w is the wall thickness of the tubular member, there being at least one tooth either side of the tooth nearest the center of the tubular member the distance from the center of the member to the tooth nearest the center of the member being from 0 to 0.3 d and the distance between the two teeth adjacent the tooth nearest the center of the member being more than the smaller of 0.4 d and 3 w. Such a coupling member can be expanded by mandrel expansion methods without danger of damaging the teeth. <IMAGE>
GB791377A 1978-01-16 1979-01-15 Heat recoverable metallic coupling members Expired GB2012384B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86972078A 1978-01-16 1978-01-16

Publications (2)

Publication Number Publication Date
GB2012384A true GB2012384A (en) 1979-07-25
GB2012384B GB2012384B (en) 1982-03-10

Family

ID=25354132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB791377A Expired GB2012384B (en) 1978-01-16 1979-01-15 Heat recoverable metallic coupling members

Country Status (10)

Country Link
JP (1) JPS54148960A (en)
BR (1) BR7900242A (en)
CA (1) CA1101463A (en)
DE (1) DE2901536A1 (en)
FR (1) FR2414677A1 (en)
GB (1) GB2012384B (en)
IE (1) IE47645B1 (en)
IT (1) IT1110021B (en)
NL (1) NL7900096A (en)
NO (1) NO144078C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166514A (en) * 1984-11-02 1986-05-08 Kabelmetal Electro Gmbh Pipe connector or end piece
GB2212240A (en) * 1987-12-12 1989-07-19 Usui Kokusai Sangyo Kk A pipe support

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007307A1 (en) * 1980-01-18 1981-07-23 BBC AG Brown, Boveri & Cie., Baden, Aargau Detachable shrunk joint - uses shape memory alloy with two=way effect
US4639802A (en) * 1984-06-25 1987-01-27 International Business Machines Corporation Shrink ring for disk clamping
DE3813854A1 (en) * 1988-04-23 1989-11-02 Bayerische Motoren Werke Ag Connecting rod with a pressure body and a strap retainer
JPH0322192U (en) * 1989-07-14 1991-03-06
CN105276318A (en) * 2015-11-09 2016-01-27 成都长江热缩材料有限公司 Firm connecting pipe sleeve based on heat sealing layer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948887B2 (en) * 1973-10-09 1984-11-29 レイチエム コ−ポレ−シヨン fitting device
AU483233B2 (en) * 1975-04-01 1975-06-19 Raychem Corporation Heat recoverable hollow article
JPS587042B2 (en) * 1975-07-02 1983-02-08 株式会社日立製作所 Kotaiden Atsugataseitokuseisa Mista
GB1580036A (en) * 1976-05-27 1980-11-26 Raychem Corp Heat-recoverable composite coupling devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166514A (en) * 1984-11-02 1986-05-08 Kabelmetal Electro Gmbh Pipe connector or end piece
GB2212240A (en) * 1987-12-12 1989-07-19 Usui Kokusai Sangyo Kk A pipe support
GB2212240B (en) * 1987-12-12 1992-07-29 Usui Kokusai Sangyo Kk Fixing apparatus for fixing tubular members allowing fluid to pass therethrough

Also Published As

Publication number Publication date
NO790120L (en) 1979-07-17
IE790069L (en) 1979-07-16
BR7900242A (en) 1979-08-14
FR2414677B1 (en) 1984-05-18
IE47645B1 (en) 1984-05-16
DE2901536A1 (en) 1979-07-19
NO144078B (en) 1981-03-09
GB2012384B (en) 1982-03-10
IT1110021B (en) 1985-12-23
JPS6222002B2 (en) 1987-05-15
JPS54148960A (en) 1979-11-21
FR2414677A1 (en) 1979-08-10
NL7900096A (en) 1979-07-18
IT7919347A0 (en) 1979-01-16
CA1101463A (en) 1981-05-19
NO144078C (en) 1981-06-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970115