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:
Jan. 18, 1994
Filed:
Aug. 12, 1992
Applicant:
Inventor:
Nicholas L Petschek, New York, NY (US);
Assignee:
ReSeal International Limited Partnership, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
222105 ;
Abstract
A fluid dispensing unit includes a hollow support enclosing a collapsible reservoir or container. The container has a one-way valve at its outlet for directing flow through the valve into a metering chamber. The metering chamber has an outlet connected to another one-way valve which valve prevents any backflow of contaminants into the container after fluid is dispensed. As the fluid is dispensed, the container can be collapsed to ensure complete evacuation of the fluid. Further, the metering chamber can be completely collapsed to ensure that the dispensing unit is completely empty.