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. 23, 1991
Filed:
Feb. 23, 1990
Applicant:
Inventor:
Robert A Bennett, Easton, CT (US);
Assignee:
R.J.S. Industries, Inc., Marlboro, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
222190 ; 222211 ; 222484 ; 222532 ;
Abstract
A foam dispenser utilizes a deformable reservoir of foamable fluid and air, a discharge device and an arrangement for producing foam which includes a foam overlay or filter. When the dispenser is operated, air from inside the dispenser is mixed with the fluid to produce foam. The dispenser employs a check valve in the form of a ball and cylinder disposed outside of the path of liquid flow for use in controlling the backward flow of air from outside the dispenser into the interior to recharge the air supply within the dispenser for use in subsequent foam dispensing operations.