Lock and key shell assembly
US5440909A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7876
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There is disclosed a lock and key assembly comprising a lock assembly including a lock body having cylindrical portions, a cylinder retained in the lock body and mounted for rotative movement in the lock body, the cylinder having a head portion having a keyway therein, and a shank portion extending from the head portion and adapted to activate a lock mechanism upon rotation of the shank portion, and a key shell assembly comprising a tubular grip portion, a piston disposed in the grip portion, a key extending from the piston and adapted to enter the keyway, the piston being rotatably movable in the grip portion to turn the key in the keyway and thereby turn the cylinder to cause activation of the lock mechanism, the key shell assembly grip portion being engageable with the lock assembly lock body to hold the lock body against rotative movement during the rotative movement of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.