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:
Jul. 04, 2000
Filed:
Aug. 24, 1995
Applicant:
Inventor:
William A Cavallaro, Bradford, MA (US);
Assignee:
Speedline Technologies, Inc., Haverhill, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05C / ; B65D / ;
U.S. Cl.
CPC ...
118300 ; 222399 ; 118243 ; 118263 ;
Abstract
A liquid dispenser has a pump assembly with a housing and a cartridge that is movable relative to the housing between an upper non-dispensing position and a lower dispensing position. The movement is controlled by the selective introduction of air to create a column of air. The dispenser is otherwise biased downward. The movement of the dispenser can be used to avoid repeated upward and downward movement of a pump assembly. In a pump assembly with multiple dispensers, all but one can be raised while only the dispensing cartridge is lowered.