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:
Jul. 20, 1999
Filed:
Nov. 25, 1997
Applicant:
Inventors:
Fred Emilsson, Trelleborg, SE;
Per Walter, Flyinge, SE;
Assignee:
Sab Wabco AB, Landskrona, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; B60T / ;
U.S. Cl.
CPC ...
1881 / ; 188 74 ; 188217 ;
Abstract
A tread brake unit for applying a brake block (3) against the tread of a rail vehicle wheel comprises a pneumatic cylinder (1) having a piston (9) with a piston rod (11). A block holder (2) for the brake block is pivotably connected to the piston rod by a pivot sleeve (19) rotatably attached in the end of the piston rod facing the block holder, which is provided with a circular surface (25) for engagement with the pivot sleeve, a structure (20, 22, 23) being provided for keeping the block holder connected to the pivot sleeve.