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:
May. 04, 2004
Filed:
Sep. 30, 2002
Applicant:
Inventors:
Christopher Paul Ramsey, Wantage, GB;
Martin John Watson, Wantage, GB;
Reinhold Karl Jaeger-Waldau, Zell, DE;
Assignee:
Crown Cork & Seal Technologies Corporation, Alsip, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 8/854 ;
U.S. Cl.
CPC ...
B65D 8/854 ;
Abstract
A dispensing pump for liquid or pasty products comprising a housing ( ), a piston ( ) arranged to move telescopically within the housing between rest and activated positions and a plastics spring ( ) arranged to return the piston from its activated to its rest position. The plastics spring has a folded, concertina configuration to provide the required return force for the piston. The spring also has end plates ( ), which can be adapted increased functionality. The whole pump may be moulded from a plastics material and has few component parts.