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US 10,378,662 B2Granted
Pressure assisted rotary pinch valve
OwnerJohn Eric Chapmaninventor
Life of this patent
Estimating the term…
Abstract
A pinch valve has an upper casing support the entire pinch assembly and the lower casing. In a particular embodiment, a quarter-turn actuator is deployed and the sleeve may be removed without moving the actuator. The body may be open or closed to retain an external air pressure used to help close the sleeve and reduce actuator forces.
Claims10
A pinch valve apparatus for controlling fluid flow through a replaceable sleeve, the apparatus comprising:
- a removeable frame,
- a removeable open cam rotational mechanism mounted on the removable frame for rotation thereon,
- a pair of lever arms having the replaceable sleeve positioned therebetween,
- a first pair of pins pivotally connecting the removeable open cam rotational mechanism to the pair of lever arms,
- a second pair of pins projecting from the pair of lever arms and abutting the removeable open cam rotational mechanism, and
- an actuator,
- wherein the actuator drives the removable open cam rotational mechanism to drive the second pair of pins to drive the pair of lever arms together to squeeze the replaceable sleeve.
4 more elements
A removeable gear mechanism for pinch valve apparatus for controlling fluid flow through a replaceable sleeve, the gear mechanism comprising:
- a removeable open cam,
- a first pair of pins projecting from the open cam,
- a pair of lever arms pivotally mounted on the first pair of pins movable from a closed position for squeezing the replaceable sleeve to an open position for releasing the replaceable sleeve, and
- a second pair of pins projecting from the pair of lever arms and abutting the removeable open cam to guide the pair of lever arms.
1 more element
Dependencies are inferred from the claim text.