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:
May. 05, 1981
Filed:
Jun. 28, 1979
Applicant:
Inventor:
Ernest G Tickner, Morgan Hill, CA (US);
Assignee:
Rasor Associates, Inc., Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128660 ; 128662 ; 128663 ; 73703 ;
Abstract
Pressure within a liquid containing vessel is determined by adding a solid precursor for at least one bubble to the liquid, retaining the precursor in the liquid for a sufficient time for it to form at least one bubble and generate a sonic signal, metering a characteristic of the sonic signal which is representative of the pressure in the liquid and determining the pressure in the liquid from the measured characteristic.