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:
Apr. 19, 2005
Filed:
Mar. 06, 2003
David Nichols-roy, Escondido, CA (US);
Charles R. Way, Burlington, WI (US);
David Nichols-Roy, Escondido, CA (US);
Charles R. Way, Burlington, WI (US);
Lavelle Industries, Inc., Burlington, WI (US);
Abstract
A pair of lever arms each have an intermediate segment configured for pivotal mounting on a pair of pins that support a corresponding end of a pair of mounting arms of a flapper valve. Each of the lever arms has a forward end configured to engage and provide a lifting force on a corresponding one of the flapper valve mounting arms when the lever arm and the flapper valve mounting arm are rotated in a first direction during opening of the flapper valve upon manual actuation of a flush control lever or button. A counterweight reservoir is connected to a pair of rearward ends of the lever arms for holding a volume of water and delays rotation of the flapper valve in a reverse direction to seal the flush valve until a volume of water has drained through an outlet aperture in a bottom portion of the counterweight reservoir.