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:
Aug. 01, 1995
Filed:
Aug. 16, 1993
Applicant:
Inventor:
Stefan Ritsche, Radolfzell, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
2223218 ;
Abstract
In a discharge apparatus (1) the restoring spring (21) of a restoring system (20) for a discharge pump (7) and for valves (26,30) is positioned, separated from the medium, in a tightly closed spring chamber (22). The medium inlet (31) into the discharge pump (7) is positioned eccentrically thereto and issues into an external, annular presuction chamber (15) from which the medium passes via an intermediate valve (30) into the pump chamber (39). This avoids contact between the medium and metallic parts and this gives both favorable flow paths for the medium and a compact pump construction.