Measuring and testing – Engine detonation – Combustion signal compared to reference signal varied by a...
Patent
1988-09-22
1989-11-21
Ruehl, Charles A.
Measuring and testing
Engine detonation
Combustion signal compared to reference signal varied by a...
73709, 220 89A, G01N 3322, F16K 1740
Patent
active
048814008
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.
REFERENCES:
patent: 1344722 (1920-06-01), Schulz
patent: 4777974 (1988-10-01), Swift et al.
Bell Emmett L.
Goodman Henry J.
Walker Evan H.
Baylor Walter R.
Elbaum Saul
Ruehl Charles A.
The United States of America as represented by the Secretary of
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