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:
Feb. 09, 1988
Filed:
Mar. 19, 1987
Applicant:
Inventor:
Philip L Cowan, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417222 ; 92131 ;
Abstract
A pump control module is provided which may form an integral part of a variable volume pump or which may take the form of a pump attachment and which is operative to continually vary the volumetric output in inverse proportion to the operating pressure at the pump discharge so as to utilize a high percentage of the available horsepower at maximum output over a portion of the operating range of the pump.