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:
Dec. 06, 2005
Filed:
Feb. 13, 2003
Applicants:
Larry Gray, Merrimack, NH (US);
Robert Bryant, Manchester, NH (US);
Geoffrey Spencer, Manchester, NH (US);
John B. Morrell, Bedford, NH (US);
Inventors:
Larry Gray, Merrimack, NH (US);
Robert Bryant, Manchester, NH (US);
Geoffrey Spencer, Manchester, NH (US);
John B. Morrell, Bedford, NH (US);
Assignee:
DEKA Products Limited Partnership, Manchester, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D011/00 ; G05D007/00 ; F17D001/16 ; F17D001/18 ;
U.S. Cl.
CPC ...
Abstract
A method and system for determining change in a fluid's flow rate within a line. The pressure variation in a second fluid, separated from the first by a pumping membrane, is measured in response to energy applied in a time-varying manner to the second fluid. From the response of the second fluid to the applied energy, changes in the flow rate of the first fluid are determined.