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:
Nov. 16, 1999
Filed:
Sep. 27, 1996
John G Kaufman, Burlington, Ontario, CA;
Other;
Abstract
Dispensers for liquids are provided having structure for containing a pool of liquid in the dispenser, to a predetermined level. A discharge chamber contains air above the level of liquid and a discharge device extends upwardly at least partly through the discharge chamber from below the level of the pool and has an external outlet. The discharge device includes a foamer chamber having a wall defining very small holes located above the pool level, and pressure means is coupled to the discharge chamber and operable to increase the pressure in the discharge chamber so that a pressure applied on the pool level drives liquid into the discharge device. Simultaneously air is forced through the small holes in the foamer chamber to meet the liquid passing through the foamer chamber where progressive foaming takes place before the resulting foam is forced through a discharge outlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile