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:
Jan. 26, 1982
Filed:
Apr. 20, 1979
James E Nicholson, Lincoln, MA (US);
Lawrence Milesky, Needham, MA (US);
Codman and Shurtleff, Inc., Randolph, MA (US);
Abstract
A pressure monitoring system for use with an electrofluidic device for sensing pressure includes a pump for supplying fluid to the electrofluidic sensing device. An electrical switching circuit controls the supply of fluid to the sensing device and is responsive to the external pressure level applied to the sensing device; this circuit also cyclically causes the supplied pressure to vent when the pressure of supplied fluid inside the sensing device is substantially equal to the applied external pressure, and then start the fluid supply to the device over again. This system further includes a measuring element for detecting the pressure level of the supplied fluid, and a digital meter for displaying the analogous detected pressure level during supply of the fluid.