Patent · US Expired

Externally mounted latch for slidable sash window

US4901475A · kind A · utility

64Cited by
3References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 28, 1988
Grant dateFeb 20, 1990
Priority date
Expiry dateJul 28, 2008

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE05Y2900/148
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A pre-assembled latch for mounting externally on the header of a pivotal sash window of a double-hung sash window assembly. The latch includes a housing having a spring-biased latch bolt normally providing a protruding bevelled formation for engaging a guide rail of the window assembly. The housing has depending spring clip means integral therewith for retaining the latch bolt operably assembled in the housing and the latch bolt has means cooperating with the housing for retaining the spring means in biasing association with the latch bolt.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.