Latch device
US4455042A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1982 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A latch device having a locking mechanism is locked and unlocked by a lock operating device comprising: a lock lever coupled to and operating the locking mechanism when driven to undergo displacement between terminal lock and unlock positions; a motor for driving the lock lever; a retaining member exerting an elastic force (1) to cause the lock lever to undergo the displacement with a click motion, over-riding an intermediate dead-center point against an elastic resistance and (2) to retain the lock lever positively in either terminal position after each displacement; and a retraction device for temporarily nullifying or greatly reducing the action of the retaining member at the time of the displacement of the lock lever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.