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:
Feb. 25, 1992
Filed:
Oct. 19, 1990
Applicant:
Inventors:
Joseph Gross, Moshav Mazor, IL;
Shlomo Zucker, Yavne, IL;
Assignee:
Product Development (Z.G.S.) Ltd., Petach Tiqua, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604132 ; 604141 ; 604145 ; 222105 ; 222494 ; 128D / ;
Abstract
A liquid material dispenser includes a rigid housing having a flexible partition defining first and second compartments on opposite sides of the partition, and an electrolytic cell in the first compartment capable of generating a gas when energized by a source of electric current in order to expand the first compartment and thereby to contract the second compartment. The second compartment contains the liquid material which is dispensed via a discharge opening in accordance with the rate of generation of the gas.