Pneumatic gas cylinder valve actuator
OwnerDavid K. Grayinventor
Life of this patent
Estimating the term…
Abstract
A pneumatic gas cylinder valve actuator that clamps to the threads on gas cylinder normally used for threading on a protective cap and is so designed that air pressure up to 100 psi admitted to the internal piston chamber in the valve actuator opens the gas cylinder valve while compressing the springs under the pistons in the internal piston chambers so that when air pressure is cut off the springs return the gas cylinder valve to the closed position; a torque indicator on top of the valve actuator shows proper positioning of the valve actuator clamp to adjust the closing torque exerted by the springs under the pistons to about 70 inch pounds.
Claims8
A pneumatic gas cylinder valve actuator for operating a manual valve on a gas cylinder comprising:
- (a) an actuator valve body up to 4 inches thick, up to 8 inches wide, and up to 10 inches long,
- (b) a flat toothed operator gear centrally located in said actuator valve body with a flat plane of said flat toothed operator gear parallel to a longer, flat plane of said actuator valve body,
- (c) two piston chambers within said actuator valve body, horizontally opposed with one on either side of said flat toothed operator gear, with a bottom central opening of said piston chambers communicating with said flat toothed operator gear,
- (d) two pistons, one in each of said piston chambers,
- (e) sealing means for each of said pistons,
- (f) means for introducing and venting up to 100 psi air pressure in said piston chambers above each of said pistons,
- (g) means for translating movement of said pistons to operate said manual valve on said gas cylinder to open when said air pressure is admitted into said piston chambers above said pistons,
- (h) spring loading means under each of said pistons to reverse said movement of said pistons to close said manual valve when said air pressure is vented from said piston chambers,
- (i) means for adjusting said spring loading means to provide up to 100 inch pounds of torque holding said manual valve in a closed position.
Dependencies are inferred from the claim text.