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. 11, 1990
Filed:
Feb. 14, 1990
Peter A Basile, Lawrenceville, NJ (US);
Ashvani K Madan, Ocean, NJ (US);
Fred E Snyder, Princeton Junction, NJ (US);
Harold M Stillman, Scarsdale, NY (US);
American Standard Inc., New York, NY (US);
Abstract
A flushing mechanism using a phase change fluid for flushing a toilet bowl with a reduced amount of water. The flushing mechanism includes a containment vessel adapted to fit in a standard-sized toilet tank and means within the containment vessel for forcing water out of the vessel into the bowl to be flushed. The containment vessel includes a collapsible bladder which is loaded with a phase change fluid. Water in the containment vessel is forced into the toilet bowl when the phase change fluid changes from a liquid to a vapor state. A hydraulic actuation system is also provided for actuating the flushing mechanism.