Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1987-06-09
1989-05-23
Rivell, John
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
251228, 251232, 251285, 251298, 251303, F16K 3700, F16K 31528
Patent
active
048320781
ABSTRACT:
A quick-action valve is opened and closed by a quarter turn. Safe closing with high mechanical advantage is provided, while the valve member is removed completely from the path of the flow upon valve opening. The valve member is fixed to a valve arm, mounted for rotation on a shaft. The valve includes an auxiliary shaft around which an actuating arm with a roller fixed to it are turnable. The roller moves the valve arm, or an auxiliary arm connected to it, so that upon closing it rolls substantially tangentially on a camming surface, thus bringing about maximum force transmission. A few degrees after the dead center position, rotation of the actuating arm is limited by a stop, and self-holding takes place in the closed position. In a preferred version the roller runs in the groove on the valve arm or auxiliary arm. Thus it positively moves the valve member upon opening and closing, and with the aid of an elastic stop element tensioning and self-holding will occur through the elastic stop after the dead center in the fully open position as in closed position.
REFERENCES:
patent: 1704209 (1929-03-01), Parry
patent: 2389947 (1945-11-01), Allen
patent: 2699318 (1955-01-01), Ellison et al.
patent: 2835269 (1958-05-01), Seymour
patent: 3119594 (1964-01-01), Heggen
patent: 3334858 (1967-08-01), Hay
patent: 3514076 (1970-05-01), Wheatley
patent: 3813080 (1974-05-01), Rogers
patent: 4022421 (1977-05-01), Carlin
patent: 4061535 (1977-12-01), Nolan et al.
patent: 4098085 (1978-07-01), McDowell
Hamori Attila
Kunos Karoly
Szekely Lajos
Vida Miklos
Hamori Attila
Rivell John
Szekely Lajos
Vida Miklos
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