Fluid handling – Larner-johnson type valves; i.e. – telescoping internal valve... – Line condition change responsive
Patent
1989-01-03
1990-03-27
Michalsky, Gerald A.
Fluid handling
Larner-johnson type valves; i.e., telescoping internal valve...
Line condition change responsive
1374542, 137540, 13754315, F16K 1500
Patent
active
049111965
ABSTRACT:
An inline check valve (10) has a valve body (12) with an enlarged diameter valve chamber (14) in which a cage assembly (44) is mounted. Cage assembly (44) has a cylindrical body (48) fitted about the outlet flow passage (18) and projecting in unsupported cantilevered relation within the valve chamber (14). The free end portion (56) of body (48) mounted a piston check valve member (50) thereon for relative reciprocal movement between open and closed positions. Upon a reversal of fluid flow, the entire rear face for the check valve member (50) is exposed to fluid pressure from the outlet flow passage (18), and the check valve member (50) immediately moves to closed position under the influence of spring (86) and fluid pressure. Cage assembly (44) may be inserted within and removed from the inlet fluid passage (16) upon removal of the inlet seat (36) and retainer (42).
REFERENCES:
patent: 2170478 (1939-08-01), Long et al.
patent: 2809660 (1957-10-01), Becker
patent: 3092133 (1963-06-01), Clark
patent: 3160112 (1964-12-01), Flaton et al.
patent: 3845784 (1974-11-01), Sullivan
patent: 4362184 (1982-12-01), Marabeas
patent: 4479507 (1984-10-01), Nichols
patent: 4532958 (1985-08-01), Napolitano
Brochure (12 pages) of "Mokveld TKZ Check Valves" Published by Mokveld Valves, Inc., Houston, Texas.
Kemp Development Corporation
Michalsky Gerald A.
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