Lock set with improved spindle construction
US5927777A · kind A · utility
19Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/93
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock set for a door has a cylindrical spindle integrally coupled with a knob and containing a slide plate which can be actuated to lock and unlock the cylindrical spindle against rotation. The cylindrical wall of the spindle is provided with two diametrically opposing grooves which extend axially from one end thereof to a predetermined depth and which are opened at the one end so as to facilitate installation of the slide plate in the spindle. The slide plate has two opposing lugs for insertion into the grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.