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. 29, 1981
Filed:
Mar. 28, 1979
Applicant:
Inventors:
Carl M Singer, New Castle, PA (US);
Edward J Ratkay, Canfield, OH (US);
Assignee:
Commercial Shearing, Inc., Youngstown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03C / ; F04C / ; F04C / ;
U.S. Cl.
CPC ...
418132 ;
Abstract
A rotary impeller pump or motor is provided having a case, a pair of rotary impellers in said case, a plate having a first face divided by lands into a plurality of chambers against corresponding ends of the impellers and a second face divided by sealing means into a similar plurality of chambers between the plate and case, opposed inlet and outlet ports in said case whereby said plate is balanced in pressure on opposite sides by fluid in said chambers on the first and second faces.