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:
Oct. 22, 1996
Filed:
Nov. 29, 1995
Applicant:
Inventors:
Erwin Mueller, Renningen, DE;
Wolfgang Schuller, Sachsenheim, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417549 ; 417554 ;
Abstract
A reciprocating pump including a piston through which fluid can flow. The piston includes an inlet valve which presses a valve ball against a valve seat in a longitudinal bore in the piston. One end of the piston has a cap-shaped support elements attached thereto against which the inlet valve spring is supported and which engage around an end behind an undercut in the piston.