Latch and corner support for pivotal window sash
US4622778A · kind A · utility
58Cited by
1References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A window sash of a double-hung window assembly has framing members formed of extruded plastic material of one configuration providing a hollow formation extending therethrough and opening to the ends thereof. Support and connector members are installed internally of the framing members to form and rigidify the corner right angle butt joints therebetween. The support and connector members include internal latch means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.