GB1390276A - Magnetic switch control and interlock system - Google Patents

Magnetic switch control and interlock system

Info

Publication number
GB1390276A
GB1390276A GB2663572A GB2663572A GB1390276A GB 1390276 A GB1390276 A GB 1390276A GB 2663572 A GB2663572 A GB 2663572A GB 2663572 A GB2663572 A GB 2663572A GB 1390276 A GB1390276 A GB 1390276A
Authority
GB
United Kingdom
Prior art keywords
magnet
case
switch means
cover
operated
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
Application number
GB2663572A
Other languages
English (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.)
Hobart Corp
Original Assignee
Hobart 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 Hobart Corp filed Critical Hobart Corp
Publication of GB1390276A publication Critical patent/GB1390276A/en
Expired legal-status Critical Current

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

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Food-Manufacturing Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
GB2663572A 1971-07-29 1972-06-07 Magnetic switch control and interlock system Expired GB1390276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16740471A 1971-07-29 1971-07-29

Publications (1)

Publication Number Publication Date
GB1390276A true GB1390276A (en) 1975-04-09

Family

ID=22607239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2663572A Expired GB1390276A (en) 1971-07-29 1972-06-07 Magnetic switch control and interlock system

Country Status (7)

Country Link
US (1) US3717830A (https=)
BE (1) BE785365A (https=)
CA (1) CA956677A (https=)
DE (1) DE2236878A1 (https=)
FR (1) FR2147034B1 (https=)
GB (1) GB1390276A (https=)
NL (1) NL7206910A (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024992B1 (fr) * 1979-08-29 1984-06-27 Robot-Coupe Dispositif de sécurité de montage pour un appareil de préparation d'aliments
DE3311291A1 (de) * 1983-03-28 1984-10-04 Braun Ag, 6000 Frankfurt Magnetische sicherheitsvorrichtung, insbesondere fuer ein kuechengeraet
GB2206240A (en) * 1987-06-26 1988-12-29 Birns Uk Limited Magnetically operated electrical switches
GB2265050A (en) * 1992-03-06 1993-09-15 Walter Wilson Hugh Clarke Presence sensor for detecting closed door conditions with tamper resistance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852692A (en) * 1974-02-19 1974-12-03 E Moorman Magnetically operating switch
US5877664A (en) * 1996-05-08 1999-03-02 Jackson, Jr.; John T. Magnetic proximity switch system
US5929731A (en) * 1996-05-08 1999-07-27 Jackson Research, Inc. Balanced magnetic proximity switch assembly
US20050272565A1 (en) * 2004-06-02 2005-12-08 Kuo-Wu Hao Safety device for treadmills

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024992B1 (fr) * 1979-08-29 1984-06-27 Robot-Coupe Dispositif de sécurité de montage pour un appareil de préparation d'aliments
DE3311291A1 (de) * 1983-03-28 1984-10-04 Braun Ag, 6000 Frankfurt Magnetische sicherheitsvorrichtung, insbesondere fuer ein kuechengeraet
GB2206240A (en) * 1987-06-26 1988-12-29 Birns Uk Limited Magnetically operated electrical switches
GB2265050A (en) * 1992-03-06 1993-09-15 Walter Wilson Hugh Clarke Presence sensor for detecting closed door conditions with tamper resistance
GB2265050B (en) * 1992-03-06 1995-09-06 Walter Wilson Hugh Clarke Presence sensor for detecting closed door conditions with tamper resistance

Also Published As

Publication number Publication date
CA956677A (en) 1974-10-22
US3717830A (en) 1973-02-20
BE785365A (fr) 1972-10-16
FR2147034B1 (https=) 1980-08-14
FR2147034A1 (https=) 1973-03-09
NL7206910A (https=) 1973-01-31
DE2236878A1 (de) 1973-02-08
AU4152272A (en) 1973-11-01

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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