GB2020904A - Apparatus for intermittent wiper operation - Google Patents

Apparatus for intermittent wiper operation

Info

Publication number
GB2020904A
GB2020904A GB7913495A GB7913495A GB2020904A GB 2020904 A GB2020904 A GB 2020904A GB 7913495 A GB7913495 A GB 7913495A GB 7913495 A GB7913495 A GB 7913495A GB 2020904 A GB2020904 A GB 2020904A
Authority
GB
United Kingdom
Prior art keywords
switching
contacts
relay
pair
armature
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
GB7913495A
Other versions
GB2020904B (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.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck and Co
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 Westfaelische Metall Industrie KG Hueck and Co filed Critical Westfaelische Metall Industrie KG Hueck and Co
Publication of GB2020904A publication Critical patent/GB2020904A/en
Application granted granted Critical
Publication of GB2020904B publication Critical patent/GB2020904B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Motor And Converter Starters (AREA)
  • Thermally Actuated Switches (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

An apparatus for the intermittent operation of windscreen wipers has a thermosensitive switching device comprising a bimetallic strip (5) with a pair of switching contacts (12, 13) that open and close the circuit to a heater winding (6) for the strip, and in this way generate a cyclic operation of the contacts. An electromagnetic relay has a contact (9) for switching the wiper motor on and off and is operated by the switching contacts of the thermosensitive device which also open and close the circuit to the relay coil (3). One of said pair of switching contacts is insulated from but attached to the pivoted switching armature (4) of the relay by the bimetal 5 or directly thereon and the other is fixed or on a fixed bimetal (not shown). The movement of the armature on deenergisation of the relay can thus be arranged to augment the opening movement of the pair of contacts initiated by the heating of the bimetallic strip. <IMAGE>
GB7913495A 1978-05-13 1979-04-18 Apparatus for intermittent wiper operation Expired GB2020904B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782821209 DE2821209A1 (en) 1978-05-13 1978-05-13 DEVICE FOR THE INTERMITTING OPERATION OF WIPERS

Publications (2)

Publication Number Publication Date
GB2020904A true GB2020904A (en) 1979-11-21
GB2020904B GB2020904B (en) 1982-09-02

Family

ID=6039425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913495A Expired GB2020904B (en) 1978-05-13 1979-04-18 Apparatus for intermittent wiper operation

Country Status (2)

Country Link
DE (1) DE2821209A1 (en)
GB (1) GB2020904B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002947A1 (en) * 1996-07-16 1998-01-22 Raychem Corporation Circuit protection arrangements
US6349022B1 (en) 1998-09-18 2002-02-19 Tyco Electronics Corporation Latching protection circuit
US6421216B1 (en) 1996-07-16 2002-07-16 Ewd, Llc Resetable overcurrent protection arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002947A1 (en) * 1996-07-16 1998-01-22 Raychem Corporation Circuit protection arrangements
US6421216B1 (en) 1996-07-16 2002-07-16 Ewd, Llc Resetable overcurrent protection arrangement
US6456476B1 (en) 1996-07-16 2002-09-24 Tyco Electronics Corporation Circuit protection relay having bimetal wiper
US6349022B1 (en) 1998-09-18 2002-02-19 Tyco Electronics Corporation Latching protection circuit

Also Published As

Publication number Publication date
DE2821209A1 (en) 1979-11-15
GB2020904B (en) 1982-09-02

Similar Documents

Publication Publication Date Title
US3555289A (en) Windshield wiper energization system
GB1468404A (en) Electrical switching devices relays and systems incorporating same
DE3376460D1 (en) Device for switching an electrical connection in accordance with current and/or temperature
GB2020904A (en) Apparatus for intermittent wiper operation
US4081897A (en) Method of making an electric switch
GB1187137A (en) Electric Windscreen Wiper and Washer Units.
GB774851A (en) Improvements in or relating to clothes drying apparatus
GB1415179A (en) Electric switches
GB2021322A (en) Temperature-sensitive switch for electrically heated appliances
GB979180A (en) Bimetal relays
US1822191A (en) Thermostat switch
US4517542A (en) Voltage and temperature compensated time delay relay
US4123746A (en) Thermal relay and automobile cornering lamp control utilizing the same
GB620890A (en) Improved control device for electric motors
GB948935A (en) Thermostatic electric switch
JPS5660750A (en) Transistor-driven intermittent wiper
GB949784A (en) Thermal relays
US3739314A (en) Heat responsive switching devices
GB775631A (en) Improvements relating to the control of electric motors driving windshield wipers
GB1049874A (en) Improvements relating to electric immersion heater arrangements
GB908371A (en) Headlamp-dimmer switch system
EP0822567A3 (en) Control thermostat for apparatus operating by thermal cycles
GB1249027A (en) Circuit arrangements for windscreen-wiper motors
GB1165167A (en) Time-Delay Relay
GB1086969A (en) Control circuit for the windshield-washer pump of a vehicle

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee