US Government As Represented by the Secretary of the Army

Emmett L Bell

Evan Harris Walker

Henry J Goodman

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.

Growing community of inventors

Glennville, GA, United States of America

Emmett L Bell