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. 16, 1993
Filed:
Nov. 12, 1992
Applicant:
Inventors:
Assignee:
Sedepro, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; B29C / ;
U.S. Cl.
CPC ...
417205 ; 417501 ; 417539 ; 2642972 ; 264539 ;
Abstract
A volumetric pump for paste-like material, for example, unvulcanized rubber, in which a screw 21 feeds a cylinder 11 through ports 12 and in which a delivery piston 10 within the cylinder displaces the material through a non-return valve 15. A process for volumetric pumping of the material utilizing such volumetric pump.