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:
Nov. 21, 1989
Filed:
Sep. 22, 1988
Henry J Goodman, Baltimore, MD (US);
Evan H Walker, Aberdeen, MD (US);
Emmett L Bell, Glennville, GA (US);
The United States of America as represented by the Secretary of The Army, Washington, DC (US);
Abstract
A mechanical pressure gage for measuring the change in fluid pressure resing from an explosive charge and the like. The sealed gage housing includes a plate member having a recess in which a metalic foil diaphragm means is frictionally mounted therein. The plate member has a wedged-shaped opening centrally located on the plate member and extending therethrough. The diaphragm means covers the wedged-shaped opening and is adapted to be mechanically deformed by a change in the fluid pressure within the housing. A cover plate for the housing also has a corresponding wedged-shaped opening and has scale marking located adjacent to the edge for measuring the extent of the rupture of the diaphragm means upon the fluid pressure change. Another plate member forms a back to the housing.