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:
Oct. 12, 1976
Filed:
Jul. 10, 1975
Applicant:
Inventor:
Alfred J Tricon, Houston, TX (US);
Assignee:
Sperry-Sun, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73151 ;
Abstract
An unknown pressure at a remote location, such as in a borehole, is sensed by passing a fluid at a constantly increasing pressure, into a pressure sensitive device at the remote location. The pressure is monitored at the measurement location until a characteristic change in the rate of pressure buildup in the pressure sensitive device occurs. Effects of fluid supply pressure on the monitoring device are minimized in relation to buildup pressure in the pressure sensitive device by placing a flow control valve between the supply pressure source and the buildup pressure monitor.