GB2020904A - Apparatus for intermittent wiper operation - Google Patents
Apparatus for intermittent wiper operationInfo
- 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
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>
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)
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 |
-
1978
- 1978-05-13 DE DE19782821209 patent/DE2821209A1/en not_active Withdrawn
-
1979
- 1979-04-18 GB GB7913495A patent/GB2020904B/en not_active Expired
Cited By (4)
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 |
---|---|
GB2020904B (en) | 1982-09-02 |
DE2821209A1 (en) | 1979-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |