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:
Dec. 17, 1991
Filed:
Apr. 10, 1990
James A Thomas, Sr, Corning, NY (US);
Purolator Product Company, Tulsa, OK (US);
Abstract
An electromagnetic reciprocating piston fluid pump having a housing defining a piston guide, an inlet port, and an outlet port, and a piston disposed in the piston guide. A blocking oscillator periodically energizes a solenoid coil to reciprocate the piston in the piston guide and valves provide for unidirectional fluid flow through the pump. A soft rubber bumper and a semi-rigid plastic washer are disposed at the output end of the piston guide to noiselessly terminate the displacement of the piston at the end of its pumping stroke.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile