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, 1986
Filed:
Jun. 22, 1984
Applicant:
Inventor:
Kent G Hansen, Chatham, CA;
Assignee:
Canadian Fram Limited, Chatham, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123571 ; 123587 ; 60289 ;
Abstract
A flow control system (10) responsive to fluid pressure comprising means (12, 20) for varying the magnitude of said pressure within a plurality of different pressure ranges; a plurality of pressure responsive valves (30, 32) communicated with said pressure means, each valve having at least two operative conditions; means (40, 42, 44, 46, 52, 54, 56, 58) for sequentially changing the operative condition of a particular one of said plurality of pressure responsive valves in response to changes in the magnitude of pressure communicated thereto.