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GB2328167A - Bimetallic actuators - Google Patents

Bimetallic actuators

Info

Publication number
GB2328167A
GB2328167A GB9822447A GB9822447A GB2328167A GB 2328167 A GB2328167 A GB 2328167A GB 9822447 A GB9822447 A GB 9822447A GB 9822447 A GB9822447 A GB 9822447A GB 2328167 A GB2328167 A GB 2328167A
Authority
GB
United Kingdom
Prior art keywords
blanks
bridges
actuators
bimetallic
strip
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
GB9822447A
Other versions
GB2328167B (en
GB9822447D0 (en
Inventor
Vincent Joseph Garvey
John Crawshaw Taylor
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.)
Strix Ltd
Original Assignee
Strix Ltd
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
Priority claimed from GBGB9607962.9A external-priority patent/GB9607962D0/en
Application filed by Strix Ltd filed Critical Strix Ltd
Priority to GB9822447A priority Critical patent/GB2328167B/en
Publication of GB9822447D0 publication Critical patent/GB9822447D0/en
Publication of GB2328167A publication Critical patent/GB2328167A/en
Application granted granted Critical
Publication of GB2328167B publication Critical patent/GB2328167B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H2037/525—Details of manufacturing of the bimetals, e.g. connection to non bimetallic elements or insulating coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/5472—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting having an omega form, e.g. the bimetallic snap element having a ring shape with a central tongue

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

A method of making snap-acting thermally sensitive bimetallic actuators in which a series of actuator blanks (6) is formed in a strip (2) of bimetallic material. Adjacent blanks (6) are joined by one or more bridges (8) of the strip material. The blanks (6) are indexed through one or more deforming operations whilst they are joined together by the bridges (8), by indexing means (28) associated with the bridges (8). The blanks (6) are then separated to form individual actuators.
GB9822447A 1996-04-17 1997-04-17 Bimetallic actuators Expired - Fee Related GB2328167B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9822447A GB2328167B (en) 1996-04-17 1997-04-17 Bimetallic actuators

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9607962.9A GB9607962D0 (en) 1996-04-17 1996-04-17 Bimetallic Actuators
GB9822447A GB2328167B (en) 1996-04-17 1997-04-17 Bimetallic actuators
PCT/GB1997/001068 WO1997039466A1 (en) 1996-04-17 1997-04-17 Bimetallic actuators

Publications (3)

Publication Number Publication Date
GB9822447D0 GB9822447D0 (en) 1998-12-09
GB2328167A true GB2328167A (en) 1999-02-17
GB2328167B GB2328167B (en) 2000-01-19

Family

ID=26309146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9822447A Expired - Fee Related GB2328167B (en) 1996-04-17 1997-04-17 Bimetallic actuators

Country Status (1)

Country Link
GB (1) GB2328167B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152998A (en) * 1975-10-30 1979-05-08 Taylor John C Method for forming snap-acting thermally responsive actuators
US4796355A (en) * 1987-09-15 1989-01-10 B/K Patent Development, Inc. Snap action devices and methods and apparatus for making same
US5206622A (en) * 1992-04-10 1993-04-27 Texas Instruments Incorporated Protector device with improved bimetal contact assembly and method of making
GB2280785A (en) * 1993-08-03 1995-02-08 Otter Controls Ltd A thermally responsive switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152998A (en) * 1975-10-30 1979-05-08 Taylor John C Method for forming snap-acting thermally responsive actuators
US4796355A (en) * 1987-09-15 1989-01-10 B/K Patent Development, Inc. Snap action devices and methods and apparatus for making same
US5206622A (en) * 1992-04-10 1993-04-27 Texas Instruments Incorporated Protector device with improved bimetal contact assembly and method of making
GB2280785A (en) * 1993-08-03 1995-02-08 Otter Controls Ltd A thermally responsive switch

Also Published As

Publication number Publication date
GB2328167B (en) 2000-01-19
GB9822447D0 (en) 1998-12-09

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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)
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: 20080417