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:
Sep. 07, 1993

Filed:

Feb. 11, 1993
Applicant:
Inventors:

Lambertus G van der Heyden, Bunnik, NL;

Robert E Tiepel, Baarn, NL;

Gerrit K Bunschoten, Oud Zuilen, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
222-1 ; 222135 ; 222214 ;
Abstract

A dual dispensing system for delivering aliquots of a liquid product comprising a housing, two collapsible reservoirs for the liquid product, two manually operated pumps, each of which is connected to one of the collapsible reservoirs and a means to switch over from one pump to another. The switch over means is automatically activated by the vacuum in one of these collapsible reservoirs when the liquid product therein is exhausted and it is fully collapsed.


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