Crown release pressure tester

Details Crown release pressure tester Crown release pressure tester

1979-09-04

1981-10-06

Yasich, Daniel M.

Measuring and testing

With fluid pressure

Leakage

73 498, G01M 332

Patent

active

042928397

ABSTRACT:
A crown release pressure tester for testing the pressure that is required for a crown carried on a container to fail or if the crown is leaking. The device includes an elongated housing which has a bore extending therethrough. The top portion of the container which has the crown that is to be tested threaded thereon is severed from the container and secured to the top of the housing in axial alignment with the bore. A piston threadably carried in the bore is rotated to increase the pressure imparted through liquid and compressed air until the crown releases from the top of the container. The pressure that the crown releases is recorded on a pressure gauge.

REFERENCES:
patent: 1211942 (1917-01-01), Hoff
patent: 1539937 (1925-06-01), Cochrane
patent: 3035435 (1962-05-01), Johnson
patent: 3164979 (1965-01-01), Siegel
patent: 3251218 (1966-05-01), Russell
patent: 3958448 (1976-05-01), Willis et al.
patent: 4048845 (1977-09-01), Gilbert

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