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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.:

US 4578994 B1

PDFFull Text
Date of Patent:
Apr. 01, 1986

Filed:

Sep. 09, 1980

Temperature insensitive pressure jump detector

Applicant:
Inventors:

Alfred J Bedard, Jr, Boulder, CO (US);

Carl P Ramzy, Denver, CO (US);

Assignee:

The United States of America as represented by the Secretary of, , US;

Attorneys:

Wildensteiner; Otto M.

Deeley, Jr.; Harold P.

Primary Examiner:

Donald O Woodiel

Int. Cl.
CPC ...
G01W / ; F01N / ;
U.S. Cl.
CPC ...
7317 / ; 73708 ; 181256 ;
Abstract

An acoustic capacitor of minimum size and minimum susceptability to temperature-induced internal pressure change. The capacitor comprises an insulated container having an internal member of high heat capacity material surrounded by a porous thermally conductive material; the member acts as a heat sink, slowing the rate of change of pressure due to change in ambient temperature. The internal pressure that is built up due to temperature change is bled off by the same orifice that equilibrates the internal pressure to ambient atmospheric pressure.

Find Patent Forward Citations

Bedard, Jr, Alfred. (1986). Temperature insensitive pressure jump detector (U.S. Patent No. 4578994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4578994

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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