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. 19, 1987
Filed:
Apr. 08, 1985
Applicant:
Inventors:
Max C Glenn, Minnetonka, MN (US);
Raymond F McMullen, Minnetonka, MN (US);
David B Wamstad, Roseville, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
73727 ; 2961 / ; 73708 ; 338-4 ; 338 42 ;
Abstract
Disclosed is a pressure transducer comprising a pressure sensitive silicon die having a front side exposing piezoresistive means and a back side for receiving pressure from a pressure medium. The transducer further comprises a pressure vessel having an aperture and apparatus including a hermetic seal for mounting the die with the front side of the die facing the aperture. In this manner, the die is compressed toward the pressure vessel when positive pressure is applied to the back side of the die by the pressure medium.