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:
Nov. 22, 1988
Filed:
Jun. 26, 1987
Hans Rocholl, Remscheid, DE;
Horst Klein, Remscheid, DE;
Bergische Stahl-Industrie, , DE;
Abstract
A brake actuation unit comprises a fluid pressure cylinder with a piston movable in the cylinder which has a central projection portion with a recess having axially spaced opposed coupling surfaces. The spindle is centrally arranged in respect to the piston and a nut is threadable on the spindle and has a tubular portion terminating in a flange which has a flange projecting portion extending into the recess of the piston projection portion and it has opposed coupling surfaces engageable with respective opposed coupling surfaces of the piston projecting portion so as to form respective axially opposite direction of movement coupling pairs. The guide sleeve is positioned over in spaced relationship to the nut tubular portion and has a radially extending collar on an end thereof adjacent the piston. An output head is movable in an axial direction to apply a braking force and has a tubular portion telescopically engaged over the guide sleeve. An actuation compression spring is disposed between the collar and the output head. A stop projects outwardly from the tubular portion of the nut beyond the piston side end of the guide sleeve and is easily turnable thereon. At least two opposed abutments are disposed in the cylinder on respective opposite sides of the stop and parallel to the direction of the braking and these projections are advantageously biased in respective opposite directions in respect to the direction of braking force.