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:
May. 12, 1992
Filed:
Mar. 12, 1991
Applicant:
Inventors:
Christopher C Rutter, Oakland, CA (US);
Terry Quashnick, Lodi, CA (US);
Assignee:
Rapak, Inc., Hayward, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67B / ;
U.S. Cl.
CPC ...
222 83 ; 222 91 ; 222105 ;
Abstract
A fluid dispenser operable between opened and closed positions is adapted for attachment to a flexible bag that contains a liquid, particulate matter or other fluid material, where an opening is provided through a wall of the bag into an interior of the dispenser. The dispenser is initially closed to fluid flow, for the purpose of storage and shipping, by a diaphragm that is cut the first time the dispenser is operated to its opened position. A specially designed diaphragm cutting track and cooperative knife shape cause a cut diaphragm flap to be pushed out of the fluid flow path through the dispenser.