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. 30, 1980
Filed:
Dec. 19, 1977
William S Blake, Miami Lakes, FL (US);
Walter H Wesner, Plantation, FL (US);
The AFA Corporation, Miami Lakes, FL (US);
Abstract
A manually operated fluid dispensing device includes a first body component formed with a pump chamber and an upwardly opening cavity providing a valve housing that is closed by a second mating body component or cover having a projection that extends into the valve housing. A flat pliable valve element is clamped between said body components, said element being imperforate except for an opening through which said projection extends. A compressible bellows is associated with the pump chamber to form a variable volume pump chamber. The parts are all fabricated of thermoplastic materials and molding resins, the mating body components each being molded as a simple member of rigid plastic and including all passageways, grooves and ring seals required in the device.