Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1988-03-14
1989-02-21
Levy, Stewart J.
Measuring and testing
With fluid pressure
Dimension, shape, or size
220303, 73 614, B65D 5116, G01N 1504
Patent
active
048054437
ABSTRACT:
A pressure vessel comprises a cylindrical container with a closed end, externally threaded at an open end, and having an O-ring seal in the end surface of the container side wall. A cylindrical disk closes the open end of the container and has a raised neck portion surrounded by a recessed cavity having a rupture disk therein. An internally threaded cap memeber has a hole through its end wall through which the raised neck extends and forms an annular passageway therebetween, and has an enlarged diameter on its side wall above the threaded portion to provide an annular passageway surrounding the disk circumference. The cap is screwed on the container over the cylindrical disk with the disk neck portion extending through the hole in the cap, and when hand tightened thereon compresses the disk on the O-ring to seal the container and isolate the threaded cap connection. The raised neck has an internally threaded bore and a valve seating surface for connecting the container with pressurizing apparatus. The cap and container threads allow hand make up and provide a loose fit. The assembled unit has passageways around the circumference of the cylindrical disk, between the disk neck portion and the hole in the cap, and through the thread convolutions of the cap and container connection whereby pressure, fluids, or gases may escape upon failure of the O-ring or upon bursting of the rupture disk.
REFERENCES:
patent: 1380045 (1921-05-01), Dolezal
patent: 1509969 (1924-09-01), Martin
patent: 2298938 (1942-10-01), Griffin, Jr. et al.
patent: 3696958 (1972-10-01), Lee
patent: 3888347 (1975-06-01), Kramer
patent: 4165816 (1979-08-01), Tupper
Levy Stewart J.
Mosely Neal J.
OFI Testing Equipment Inc.
Roskos Joseph W.
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