Safety relief for piston-type gauge protector

Details Safety relief for piston-type gauge protector Safety relief for piston-type gauge protector

1986-12-23

1988-07-05

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Piston

73756, G01L 716

Patent

active

047546484

ABSTRACT:
A gauge protector comprising a body, connector, cap assembly, piston with inter-relief valve assembly, valve extension assembly, and tattletale tube assembly with plug and plug level indicator assembly.

REFERENCES:
patent: 1563847 (1925-12-01), Hall
patent: 1799832 (1931-04-01), Rinne et al.
patent: 1836682 (1931-12-01), Ray
patent: 1867779 (1932-07-01), Thompson
patent: 2064268 (1936-12-01), Parker
patent: 2147031 (1939-02-01), Hastings et al.
patent: 2618978 (1952-11-01), Ragland
patent: 4192192 (1980-03-01), Schnell
patent: 4193295 (1980-03-01), Curran
patent: 4199991 (1980-04-01), Kodama
patent: 4297891 (1981-11-01), Falcon
patent: 4608870 (1986-09-01), Huber et al.
patent: 4686855 (1987-08-01), Smith

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