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:
Jun. 10, 1980
Filed:
Sep. 08, 1977
Hans Kautzky, West Chicago, IL (US);
Other;
Abstract
A pressure transducer incorporates a tubular body symmetrical in two transverse directions, and two pairs of diametrically opposed active strain gages secured to a single surface of the body at equally spaced locations which maintain mechanical and electrical two-fold symmetry, oriented to respond to transverse tangential bending strain in the wall of the tubular body. The four strain gages are connected in a four-legged bridge circuit, which produces a large amplitude linear output signal which is compensated for first and second order errors, without hysteresis. The transducer has a very large safety factor against rupture and may be used in line with a conduit without impeding fluid flow. It is usable for all pressure ranges down to cryogenic temperatures, and may be welded in place with no seals as part of a conduit. It is highly sensitive, with improved resolution.