Measuring and testing – Volume or rate of flow – Combined
Patent
1989-12-04
1991-04-02
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Combined
285 32, G01F 1518
Patent
active
050038214
ABSTRACT:
An expansion mechanism for use in a meter box or a meter yoke. The mechanism composed of two principal elements includes a body having an at least partially threaded axial body opening passing therethrough and a bushing having a nut with a threaded female portion into which the meter threads and a threaded male portion adapted to thread into the threaded body opening. A cup having a cup opening passing therethrough is secured to an annular rim on the interior of the body and is provided with a tubular surface axially aligned with the bushing and body. The cup is provided with a sleeve having an O-ring sealer that continuously provides a seal between the tubular surface and the bushing so that the seal is maintained in any relative axial position between the body and the bushing.
REFERENCES:
patent: 1301244 (1919-04-01), Ford
patent: 2125380 (1938-08-01), Krueger
patent: 2359846 (1944-10-01), Hayman
patent: 2484755 (1949-10-01), Smith
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