CA956677A - Magnetic switch control and interlock system - Google Patents
Magnetic switch control and interlock systemInfo
- Publication number
- CA956677A CA956677A CA139,809A CA139809A CA956677A CA 956677 A CA956677 A CA 956677A CA 139809 A CA139809 A CA 139809A CA 956677 A CA956677 A CA 956677A
- Authority
- CA
- Canada
- Prior art keywords
- switch control
- magnetic switch
- interlock system
- interlock
- magnetic
- 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
Classifications
-
- 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
- H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16740471A | 1971-07-29 | 1971-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA956677A true CA956677A (en) | 1974-10-22 |
Family
ID=22607239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA139,809A Expired CA956677A (en) | 1971-07-29 | 1972-04-17 | Magnetic switch control and interlock system |
Country Status (7)
Country | Link |
---|---|
US (1) | US3717830A (fr) |
BE (1) | BE785365A (fr) |
CA (1) | CA956677A (fr) |
DE (1) | DE2236878A1 (fr) |
FR (1) | FR2147034B1 (fr) |
GB (1) | GB1390276A (fr) |
NL (1) | NL7206910A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852692A (en) * | 1974-02-19 | 1974-12-03 | E Moorman | Magnetically operating switch |
CA1164319A (fr) * | 1979-08-29 | 1984-03-27 | Marcel Goggiola | Dispositif magnetique de securite, pour robot culinaire entre autres |
DE3311291A1 (de) * | 1983-03-28 | 1984-10-04 | Braun Ag, 6000 Frankfurt | Magnetische sicherheitsvorrichtung, insbesondere fuer ein kuechengeraet |
GB8715089D0 (en) * | 1987-06-26 | 1987-08-05 | Birns Uk Ltd | Electrical switches |
GB2265050B (en) * | 1992-03-06 | 1995-09-06 | Walter Wilson Hugh Clarke | Presence sensor for detecting closed door conditions with tamper resistance |
US5929731A (en) * | 1996-05-08 | 1999-07-27 | Jackson Research, Inc. | Balanced magnetic proximity switch assembly |
US5877664A (en) * | 1996-05-08 | 1999-03-02 | Jackson, Jr.; John T. | Magnetic proximity switch system |
US20050272565A1 (en) * | 2004-06-02 | 2005-12-08 | Kuo-Wu Hao | Safety device for treadmills |
-
1971
- 1971-07-29 US US00167404A patent/US3717830A/en not_active Expired - Lifetime
-
1972
- 1972-04-17 CA CA139,809A patent/CA956677A/en not_active Expired
- 1972-05-23 NL NL7206910A patent/NL7206910A/xx not_active Application Discontinuation
- 1972-06-07 GB GB2663572A patent/GB1390276A/en not_active Expired
- 1972-06-23 BE BE785365A patent/BE785365A/fr unknown
- 1972-06-26 FR FR7223027A patent/FR2147034B1/fr not_active Expired
- 1972-07-27 DE DE2236878A patent/DE2236878A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1390276A (en) | 1975-04-09 |
FR2147034B1 (fr) | 1980-08-14 |
US3717830A (en) | 1973-02-20 |
BE785365A (fr) | 1972-10-16 |
AU4152272A (en) | 1973-11-01 |
FR2147034A1 (fr) | 1973-03-09 |
NL7206910A (fr) | 1973-01-31 |
DE2236878A1 (de) | 1973-02-08 |
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