GB1206157A - Magnetic switch devices - Google Patents

Magnetic switch devices

Info

Publication number
GB1206157A
GB1206157A GB4795667A GB4795667A GB1206157A GB 1206157 A GB1206157 A GB 1206157A GB 4795667 A GB4795667 A GB 4795667A GB 4795667 A GB4795667 A GB 4795667A GB 1206157 A GB1206157 A GB 1206157A
Authority
GB
United Kingdom
Prior art keywords
casing
spring
magnetic
diaphragm
lever
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
GB4795667A
Inventor
Byron Frederick Wolford
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.)
Proximity Controls Inc
Original Assignee
Proximity Controls Inc
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 Proximity Controls Inc filed Critical Proximity Controls Inc
Priority to GB4795667A priority Critical patent/GB1206157A/en
Publication of GB1206157A publication Critical patent/GB1206157A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

1,206,157. Movable magnet switches. PROXIMITY CONTROLS Inc. 20 Oct., 1967, No. 47956/67. Heading H1N. A magnetic switch which can be used to indicate the level of particles in bins, hoppers or grain elevators or explosive atmospheres has a diaphragm 72 which acts on a spring 56 having at a free end a permanent magnet 58 which when it moves toward a non-magnetic wall 16 repels a second permanent magnet 52 on a lever 46 which controls a switch mechanism 28 in a casing 30. The diaphragm which may be made of rubber is backed by a non-magnetic metal disc 74 whose movement is limited by a stop flange 64 of the sealed switch casing 14. The spring 56 is flexed away from the wall 16 by a screw 60 and the lever 46 is biased by a compression spring 50. The casing 30 encloses a microswitch having a plunger 44 and contacts 32, 33.
GB4795667A 1967-10-20 1967-10-20 Magnetic switch devices Expired GB1206157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4795667A GB1206157A (en) 1967-10-20 1967-10-20 Magnetic switch devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4795667A GB1206157A (en) 1967-10-20 1967-10-20 Magnetic switch devices

Publications (1)

Publication Number Publication Date
GB1206157A true GB1206157A (en) 1970-09-23

Family

ID=10446846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4795667A Expired GB1206157A (en) 1967-10-20 1967-10-20 Magnetic switch devices

Country Status (1)

Country Link
GB (1) GB1206157A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137029A2 (en) * 2000-03-21 2001-09-26 Prettl, Rolf Apparatus for proximity switching of an electrical contact and pressure measuring apparatus
US9691575B2 (en) 2015-04-10 2017-06-27 Way-More Hopper control actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137029A2 (en) * 2000-03-21 2001-09-26 Prettl, Rolf Apparatus for proximity switching of an electrical contact and pressure measuring apparatus
EP1137029A3 (en) * 2000-03-21 2003-12-17 Prettl, Rolf Apparatus for proximity switching of an electrical contact and pressure measuring apparatus
US9691575B2 (en) 2015-04-10 2017-06-27 Way-More Hopper control actuator

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees