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:
Sep. 03, 1991
Filed:
Feb. 28, 1990
Applicant:
Inventor:
Donald W McNab, Long Beach, CA (US);
Assignee:
Photofinish Cosmetics Inc., Encino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
222207 ; 222212 ; 222384 ; 222387 ; 222391 ; 222518 ; 401 61 ; 401269 ;
Abstract
A user-controlled manually-actuatable pumpable dispenser for hydraulically-driven discharge of a stored fluid incorporates a flexible wall or web-like barrier capable of containing a highly volatile fluid while accomodating mechanical and hydraulic dispenser-actuating deformations for initiating or effecting a discharge of the stored fluid. The barrier is formed of a relatively thin wall of polytetrafluoroethylene (PTFE) material having a predetermined thickness selected so as to render the barrier sufficiently flexible for accomodating deformations in accordance with which a discharge of fluid from the dispenser is hydraulically effected.