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:
Aug. 01, 1989
Filed:
Jul. 11, 1988
Applicant:
Inventors:
John R Tippetts, Sheffield, GB;
Geoffrey H Priestman, Sheffield, GB;
Assignee:
United Kingdon Atomic Energy Authority, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15C / ;
U.S. Cl.
CPC ...
137805 ; 137810 ; 137820 ; 137821 ; 137565 ;
Abstract
A control system for a single acting or double acting fluidic pump comprising a detector stage (1), a power amplifiction stage (2) and a primary element stage (3). The detector stage comprises bistable fluidic amplifiers for detecting pressure changes in a gas pressure line (10) to a displacement vessel of the pump. The power amplification stage comprises at least one unvented bistable fluidic amplifier to amplify and direct signals from the detector stage to the primary element. The primary element can be a jet pump (12) and vortex amplifier (13) to provide high pressures in the gas pressure line (10).