Combination vacuum/pressure gauge and dual purpose casing constr

Details Combination vacuum/pressure gauge and dual purpose casing constr Combination vacuum/pressure gauge and dual purpose casing constr

1976-04-01

1977-11-15

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

73420, 73431, G01L 716

Patent

active

040580164

ABSTRACT:
A casing construction is provided which can be utilized for the assembly of components of either a combination vacuum/pressure gauge or of a high pressure gauge while utilizing the same dial indicator movement; the combination vacuum/pressure gauge having a vacuum connection at one end of the casing and a pressure connection at the other end and the same complete scale can be utilized for the measurement of either value.

REFERENCES:
patent: 1430174 (1922-09-01), Marchus
patent: 2427249 (1947-09-01), Birch
patent: 3034357 (1962-05-01), Brown
patent: 3198014 (1965-08-01), Corry
patent: 3296868 (1967-01-01), Koppel et al.
patent: 3429291 (1969-02-01), Hoffman

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