Patent · US Expired

Brake actuator

US4678065A · kind A · utility

6Cited by

3References

7Claims

0Family size

Assignee

Lucas Industries public limited company · GB

Inventors

Ralf Erben · Kemmenau, DE
Michael Walden · Andernach, DE

Key dates

Filing date	Nov 19, 1985
Grant date	Jul 7, 1987
Priority date	—
Expiry date	Nov 19, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/1832
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An adjustment device for a brake actuator including a spindle (20) is arranged between an hydraulically movable piston (12) and a mechanically movable tappet (18). The spindle (20) is formed at its outside with left- and right-hand threads (26) and (28), respectively, on which a collet (22) and an adjusting nut (24), respectively, are threaded in non-self-locking manner or, in other words, reversibly. The collet (22) and the adjusting nut (24) form a conical coupling (25) which, when engaged or closed prevents rotation of the structural members so that the adjustment device acts as a rigid member between the tappet (18) and the piston (12).

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