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:
Oct. 31, 1978
Filed:
May. 07, 1974
Julius L Tolnai, Los Angeles, CA (US);
Price-Pfister Brass Mfg. Co., Pacoima, CA (US);
Abstract
The lever mechanism includes an easy-to-clean cowl which covers the end of a fixture containing a mixing valve. A generally cylindrical fulcrum bracket, attached to the valve body, forms the topmost static element of the fixture. The cowl has a central cup that projects centrally into the fulcrum bracket. The mixing valve control stem is pivotally coupled to the bottom of this cup. A cowl skirt surrounds the fulcrum bracket. A fulcrum member, advantageously either a pin or a ball, is attached to the cowl interior and projects into an annular, outwardly opening receiving groove at the periphery of the fulcrum bracket. Tilting of the operating lever cowl moves the valve stem axially to control flow volume. During such tilting the fulcrum member moves radially in the receiving groove; this changes the location of the fulcrum point so as to prevent lateral displacement of the valve stem. Angular motion of the cowl imparts concomitant mixture controlling angular movement to the mixing valve stem.