GB1188009A - Magnetic Proximity Switch. - Google Patents
Magnetic Proximity Switch.Info
- Publication number
- GB1188009A GB1188009A GB38521/67A GB3852167A GB1188009A GB 1188009 A GB1188009 A GB 1188009A GB 38521/67 A GB38521/67 A GB 38521/67A GB 3852167 A GB3852167 A GB 3852167A GB 1188009 A GB1188009 A GB 1188009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnets
- sensing
- magnetic
- aug
- proximity switch
- 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.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 title abstract 5
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000003302 ferromagnetic material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
1,188,009. Movable magnet switches. JERVIS B. WEBB CO. 22 Aug., 1967 [23 Aug., 1966], No. 38521/67. Heading H1N. A proximity switch which operates on the approach of a ferromagnetic object 30 to a sensing face 20 of a non-magnetic case 10 has two sensing permanent magnets 26, 28 with opposite poles adjacent the sensing face 20 and two biasing permanent magnets 32, 34 adjacent a magnetic shield 40. Both sets of magnets influence magnetic contacts 24, 25 of a sealed magnetic reed contact unit 22. The shield limits the effect of ferromagnetic material in the member on which the switch may be mounted by bolts passing through bosses 13, 14 (Fig. 2, not shown). The casing compartment 19 may be filled with plastics material or some of the parts may be cemented in place, particularly if the biasing magnets are made adjustable by the provision of a compression spring between them urging them against respective setting screws extending from the casing (Fig. 3, not shown). The sensing magnets 26, 28 may be made of barium ferrite.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US574395A US3406267A (en) | 1966-08-23 | 1966-08-23 | Proximity switch having a magnetic shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1188009A true GB1188009A (en) | 1970-04-15 |
Family
ID=24295933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38521/67A Expired GB1188009A (en) | 1966-08-23 | 1967-08-22 | Magnetic Proximity Switch. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3406267A (en) |
| JP (1) | JPS4945435B1 (en) |
| BE (1) | BE702814A (en) |
| DE (1) | DE1588952B1 (en) |
| GB (1) | GB1188009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038926A (en) | 1976-01-23 | 1977-08-02 | Redman Fisher Engineering Limited | Trolley conveyor system with magnetically actuated reading means |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3536875A (en) * | 1967-10-17 | 1970-10-27 | Westinghouse Air Brake Co | Fluid pressure operated magnetic switch |
| US4481806A (en) * | 1982-11-08 | 1984-11-13 | Metric Corporation | Detector for a meter prover |
| WO2000070914A2 (en) * | 1999-05-17 | 2000-11-23 | Hermetic Switch, Inc. | Shielded magnetic reed switch |
| WO2004094934A2 (en) * | 2003-04-23 | 2004-11-04 | Kevin Hodge | Archery bow sight with power saving laser sighting mechanism |
| US10598741B2 (en) | 2013-02-20 | 2020-03-24 | D & D Group Pty Ltd | Sensor configuration for a latch assembly |
| AU2013202619B2 (en) | 2013-02-20 | 2017-06-22 | D & D Technologies Pty Ltd | Sensor Configuration for a Latching Assembly |
| US10662686B2 (en) | 2016-09-30 | 2020-05-26 | Barrette Outdoor Living, Inc. | Magnetic safety gate latch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3011036A (en) * | 1959-12-14 | 1961-11-28 | Continental Can Co | Magnetically operated sensing device |
| US3164696A (en) * | 1961-08-04 | 1965-01-05 | Gen Electric | Vane operated magnetic reed switch |
| US3187127A (en) * | 1962-01-09 | 1965-06-01 | Westinghouse Air Brake Co | Magnetic reed proximity switch |
| US3198902A (en) * | 1962-05-28 | 1965-08-03 | Jr Emile C Deshautreaux | Proximity magnetic reed switch assembly |
| NL287787A (en) * | 1962-06-13 |
-
1966
- 1966-08-23 US US574395A patent/US3406267A/en not_active Expired - Lifetime
-
1967
- 1967-08-14 DE DE19671588952 patent/DE1588952B1/en not_active Withdrawn
- 1967-08-15 JP JP42052623A patent/JPS4945435B1/ja active Pending
- 1967-08-18 BE BE702814D patent/BE702814A/xx unknown
- 1967-08-22 GB GB38521/67A patent/GB1188009A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038926A (en) | 1976-01-23 | 1977-08-02 | Redman Fisher Engineering Limited | Trolley conveyor system with magnetically actuated reading means |
Also Published As
| Publication number | Publication date |
|---|---|
| US3406267A (en) | 1968-10-15 |
| BE702814A (en) | 1968-02-19 |
| DE1588952B1 (en) | 1970-07-23 |
| JPS4945435B1 (en) | 1974-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |