Valves and valve actuation – With selective flow regulation – Different sized bores in valve head
Patent
1979-01-22
1980-12-30
Rosenthal, Arnold
Valves and valve actuation
With selective flow regulation
Different sized bores in valve head
251208, 138 40, 29525, 73 3, F16K 332, F16K 5100
Patent
active
042418968
ABSTRACT:
A calibrated oxygen metering orifice for a portable oxygen supply kit is made by first forming a cylindrical hole in a valve body, then progressively pressing into the hole a plug of conforming cross section having in its surface a scored slot of progressively decreasing cross-sectional area which defines with the wall of the hole an orifice of a size depending on the depth to which the plug is inserted in the hole, monitoring the gas flow rate through such orifice as the plug is pressed into the hole, and stopping the plug at a position which gives the desired calibrated gas flow rate.
REFERENCES:
patent: 1423750 (1922-07-01), Brombacher
patent: 1982754 (1934-12-01), Peterson
patent: 2674032 (1954-04-01), Martin et al.
patent: 2948296 (1960-08-01), Thorburn
patent: 2980392 (1961-04-01), Greenwood
patent: 3365166 (1968-01-01), Smith
patent: 3949966 (1976-04-01), Fabish
patent: 3995356 (1976-12-01), Sheppard
patent: 4087301 (1978-05-01), Steadman
patent: 4157808 (1979-06-01), Eidsmore
patent: 4166580 (1979-09-01), Meckel
Bussell Ray V.
Rosenthal Arnold
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