Sash lock
US5741032A · kind A · utility
63Cited by
18References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1997 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jul 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1083
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a sash lock for double hung windows. The sash lock is fabricated without a spring for biasing the cam into a closed or open position and further without a screw or fastening means to secure the lever, housing and cam together. The four primary components of the sash lock, specifically the lever, housing, cam and keeper mount may be fabricated from injection molded plastic as opposed to metallic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.