Valve actuating latching coupler for high pressure device

Details Valve actuating latching coupler for high pressure device Valve actuating latching coupler for high pressure device

1984-03-12

1986-05-06

Rolla, Joseph J.

Dispensing

Gas or vapor dispensing

222509, 222518, 2511496, 251340, 137322, B67B 724, F16L 3728

Patent

active

045866341

ABSTRACT:
An easily manipulable, high mechanical advantage latching-actuator apparatus for high pressure gas cylinders is provided which employs a single, bidirectionally rotatable operating collar for latching, on-off gas valve operation, and delatching, so as to facilitate gas therapy and cylinder replacement by patient users. In preferred forms, the apparatus includes a slotted valve body affixed to a gas cylinder, along with a separate actuating assembly including a rotatable operator and a reciprocable valve actuator; locking tabs are secured to the operator, and a cam mechanism is used to couple the operator and the valve actuator. Rotation of the operator in a latching direction serves to first move the tabs into latching engagement with the body slot, whereupon, after further rotation of the operator in the same direction past an intermediate "off" position, the valve actuator is cammed into an "on" position for opening the valve carried by the body, thus permitting gas flow from the cylinder. Counter rotation of the operator from the "on" position first permits the valve to close when the operator moves to the "off" position, followed by delatching of the assembly from the valve body. The apparatus hereof can be used on a wide variety of gas cylinders such as large, stationary cylinders or smaller units designed for ambulatory patients, and can be made gas-specific to preclude inadvertent use of improper gas by the patient.

REFERENCES:
patent: 3648893 (1972-03-01), Whiting
patent: 3924654 (1975-12-01), Buller et al.
patent: 4331175 (1982-05-01), Brake et al.

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