Valves and valve actuation – With means for blocking or disabling actuator – Latch manipulator mounted on valve body
Patent
1975-09-17
1976-10-12
Cline, William R.
Valves and valve actuation
With means for blocking or disabling actuator
Latch manipulator mounted on valve body
251340, F16K 3500
Patent
active
039853322
ABSTRACT:
A non-refillable safety valve for a pressure container. The valve includes a housing, having a central bore, which provides communication between a port and the pressure container for charging and selective discharging the pressure container. The central bore has a lower portion that is narrower than the upper portion of the central bore. A hollow knob unit, having a central bore, is in threaded engagement with the outer wall of the housing. A core, having a central bore, is slidably mounted in the central bore of the housing. The upper end of the hollow knob unit is mounted on the core in a rotatable manner and in fixed longitudinal relationship with the core. A sealing member is slidably mounted in the lower end portion of the central bore of the core. The core contains end stop means for preventing movement of the sealing member below the lower end of the core. The sealing member engages the interface ledge formed by the lower upper portions of the central bore of the housing when the core is moved the maximum possible distance into the central bore of the core or when refill is attempted after discharge of the pressure container. The core contains at least one passageway located in the core outwards from the sealing member for communication between the central bore of the core and said upper portion of the central core, of the housing. An engagable stop means is positioned between the outer surface of the housing and the inner surface of the hollow knob unit in order to limit retrograde or outward movement of the core to a position whereby the sealing member still engages the interface ledge when refilling the pressure container. The engagable stop means engages after the pressure container has been filled and the sealing member, the core and the knob unit have been moved into sealing position.
REFERENCES:
patent: 1158420 (1915-10-01), Schweinert et al.
patent: 3552432 (1971-01-01), Wagner
patent: 3856262 (1974-12-01), Jordan
patent: 3861476 (1975-01-01), Borsum
Bristol Screw Products Corporation
Cline William R.
LandOfFree
Non-refillable safety valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-refillable safety valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-refillable safety valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-937768