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.

Date of Patent:
Apr. 17, 1979

Filed:

Oct. 18, 1977
Applicant:
Inventors:

Wilfried Lehmann, Heiligenstedten, DE;

Erwin Zimmermann, Heiligenstedten, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
141 59 ; 141 83 ; 62 77 ; 137205 ; 165 71 ;
Abstract

Apparatus for selectively charging and evacuating a separate liquid system such as an engine cooling system, refrigeration system or the like and having a liquid storage tank, a single fluid pump and valve means for selectively connecting both the pump inlet and pump outlet for either pumping liquid from the storage tank via a connector conduit to the separate system or from the separate system via the connector conduit to the storage tank.


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