Fulcrum window lock
US5738391A · kind A · utility
17Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Jul 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1083
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fulcrum lock for preventing substantial movement of a window sash when wind forces are directed against the sash. The sash includes a frame that is contained in an outer window frame. The fulcrum lock has an elongated main body provided with a fulcrum or pivot surface located between the ends of the main body, and legs that extend generally perpendicular to the extent of the main body. The fulcrum lock is located in one of the sash or window frames, while the other of said frames is provided with an opening located to receive one of the ends of the fulcrum lock when the other end is engaged by the frame containing the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.