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. 25, 1978
Filed:
Oct. 04, 1976
Applicant:
Inventor:
John M Stewart, Thornhill, CA;
Assignee:
Sanitation Equipment Limited, Downsview, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417571 ;
Abstract
A diaphragm pump is described having a pump chamber fitted with an insert. The insert defines a concave end face positioned closely adjacent the diaphragm of the pump. The concave face of the insert and the diaphragm together define an effective portion of the pump chamber which is swept by the diaphragm when the pump is in use. The insert is formed with inlet and outlet passageways through which fluid flows to and from said effective portion of the pump chamber.
Stewart, John. (1978). Diaphragm pump (U.S. Patent No. 4086037). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4086037
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile