Key-reminder automotive door locking system
US4239270A · kind A · utility
Inventor
Key dates
| Filing date | Aug 3, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Aug 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/82
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The operating rod of an automotive door lock is provided with a connector member which, in turn, is engaged by a knob having a cavity to receive the connector member. The outside dimensions of the knob are larger than the aperture in the casing, thus preventing the knob from being depressed. The cavity in the knob is sufficiently large to permit the connector member and thus, the rod, to be in its advanced, or unlocked position, while remaining entirely within the knob. This arrangement permits one to pull upwardly on the knob thereby unlocking the door, but prevents one from manually depressing the knob or the connector member and thus, the rod, to thereby lock the door. A car key, however, can be inserted through the top of the cavity to urge the connector member and the rod to the retracted, locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.