The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 1984
Filed:
Dec. 17, 1980
Applicant:
Inventor:
Erling Persson, Staffanstorp, SE;
Assignee:
Knorr-Bremse GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F01B / ;
U.S. Cl.
CPC ...
9118 / ; 92 29 ; 92 63 ; 9213 / ; 188170 ;
Abstract
A spring-loaded brake cylinder has a slideable braking piston one side of which is acted upon by a first spring in the braking direction and a second side acted upon by air under pressure in the release direction against the force of the spring. There is a releaseable mechanical coupling between the braking piston and a piston rod upon which is mounted a quick-acting piston. The quick-acting piston is actuated by air. The position of the braking piston controls a supply of air to and a discharge of air from the quick-acting piston so as to achieve pressurization and depressurization of the quick-acting piston.