Patent · US Expired

Latch, in particular for an automobile vehicle door

US4541258A · kind A · utility

3Cited by
24References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 8, 1982
Grant dateSep 17, 1985
Priority date
Expiry dateMar 8, 2002

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T292/1082
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Devices for controlling the unlatching and locking of the latch are hydraulic. Connected to a single unit having a plurality of slide valves are an expansion vessel, transmitting pumps controlling the unlatching, a receiving unlatching fluid motor and one or more pumps controlling the locking of the latch. Depending on which slide valves and pumps are employed, it is possible to achieve at will one or more of the various locking functions required in automobile vehicle latches.

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