Positive displacement meter seal scheme

Details Positive displacement meter seal scheme Positive displacement meter seal scheme

2006-01-10

2009-02-24

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Expansible chamber

Reexamination Certificate

active

07493811

ABSTRACT:
A positive displacement water meter includes a measuring chamber having an outlet port defined therein, wherein the outlet port includes a channel defined around the outlet port. A seal includes a planar surface and a curved surface, wherein the planar surface is substantially parallel to the curved surface, and the planar surface is situated within the channel. A meter casing includes an outlet port defined therein, wherein the meter casing receives the measuring chamber therein such that the outlet port of the measuring chamber is substantially aligned with the outlet port of the meter casing. The curved surface of the seal abuts a periphery of the outlet port of the meter casing forming a seal therewith. Due to the substantially arcuate cross section, the seal is adapted to resist the dislodging thereof from the channel during assembly of the positive displacement water meter.

REFERENCES:
patent: 3166332 (1965-01-01), Olson
patent: 3693986 (1972-09-01), Lambie
patent: 4512201 (1985-04-01), Konrad et al.
patent: 4715609 (1987-12-01), Mino et al.
patent: 5275043 (1994-01-01), Cotton
patent: 5964408 (1999-10-01), Musson
patent: 6361049 (2002-03-01), Joco
patent: 6921089 (2005-07-01), Groh et al.

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