Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Patent
1995-01-17
1996-02-13
Walton, George L.
Valves and valve actuation
With means for blocking or disabling actuator
Released by non-valving actuator motion
74548, 74552, 74554, F16K 3502
Patent
active
054906601
ABSTRACT:
A manual device for a valve has: a movable valve opening member sustained rotatably and disposed in a valve body; an opening and closing of the valve for controlling the opening and closing oi a fluid passage; a notch plate connected with one end of a stem which is pivotably sustaining the valve; a notch plate moving freely in axial direction on the stem and which rotates synchronously with the stem; a manual and oprative knob adhered to the notch plate; a casing adhered to the valve body, so that the casing stores the notch plate and guides the movement of the notch plate freely in the axial direction and guides rotation of the notch plate; a notch means preventing the extra rotation of the notch plate by mutual engagement between the notch plate and the casing; and a notch plate which is constantly pressurized to keep the engagement. This invention provides a manual device, wherein the maximum or minimum or intermediate degree of opening of the valve can be maintained, and at the same time, the device also achieves simple constructure, long life and down sizing.
REFERENCES:
patent: 1716277 (1929-06-01), Messmer
patent: 1933177 (1933-10-01), Kindl
patent: 2044254 (1936-06-01), Mueller
patent: 2064623 (1936-12-01), Mueller
patent: 2089617 (1937-08-01), Mueller
patent: 2194714 (1940-03-01), Mueller
patent: 2501008 (1950-03-01), Schramm
patent: 2780333 (1957-02-01), Reiser et al.
patent: 2797592 (1957-07-01), Marrapese
patent: 2829538 (1958-04-01), Mueller
patent: 2899841 (1959-08-01), Melloy
patent: 3001551 (1961-09-01), Wyser
patent: 3193243 (1965-07-01), Billington et al.
patent: 3210040 (1965-10-01), Thurlow
patent: 4549716 (1985-10-01), Warren
patent: 5037066 (1991-08-01), Kerger et al.
patent: 5265846 (1993-11-01), Shreve
Snider Ronald R.
Tomoe Technical Research Company
Walton George L.
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