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:
Jun. 15, 1976
Filed:
May. 21, 1974
Wolf Steiman, Bridgeport, CT (US);
Steven W Beres, Bridgeport, CT (US);
VCA Corporation, Greenwich, CT (US);
Abstract
A squeeze bottle dispenser having a puff-type spray discharge characteristic. The bottle comprises a container having a flexible wall portion adapted to be squeezed in the hand of the user, a discharge nozzle, and a spring-urged check valve controlling flow to the nozzle. The valve includes a hollow valve housing with an annular valve seat, a ball-check engageable with the seat so as to seal the same, and a spring which normally biases the ball against the seat to seal the container and prevent leakage of its contents. The arrangement is such that when the container wall is squeezed, the ball-check initially prevents fluid from entering the valve housing until a predetermined pressure in the container has been attained, after which the spring yields somewhat, resulting in a sudden impulse or puff-type discharge through the nozzle. Means are provided for rapidly venting air into the dispenser following discharge, in order to relieve the vacuum therein, thus immediately readying the dispenser for subsequent actuation.