Lock assembly for a pivotable window
US5096240A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1991 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Apr 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1031
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock assembly for a window assembly. The window assembly has a window sash installed for reciprocal sliding movement within a window frame. The window sash includes a header frame member. The lock assembly comprises a housing and a finger disposed within the housing. The finger is adapted for sliding movement between an extended position wherein the finger engages the window frame and a retracted position wherein the finger avoids engagement with the window frame. The lock assembly further includes a lock button and a socket for receiving the lock button. The lock button includes a cap and a generally hollow cylindrical body depending from the cap. The cylindrical body includes first and second radially opposing, projecting tongues. Each of the tongues is in spaced relationship with the cap to form respective first and second grooves. The lock button further includes a locking tab depending from one of the tongues for selective engagement with the finger to selectively prevent retraction of the finger. The socket extends through the housing and defines an annular edge surface and first and second radially opposing notches. The lock button is rotated to a first position such that …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.