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US 9,957,983 B2Granted
Pressurized actuator
AssigneeTK Holdings Inc.
InventorJeremy M. Henck
Life of this patent
Estimating the term…
Abstract
A linear actuator contains a housing having a first end and a second end. A hollow piston is positioned within the housing to slidably engage with an inner wall of the housing. A sealed gas chamber is formed within the hollow piston and contains stored gas for driving the piston upon activation of the actuator.
Claims17
A linear actuator comprising:
- a housing comprising a first end and a second end;
- a hollow piston rod comprising a third end and a fourth end, wherein the third end is disposed within said housing and is proximate to the first end prior to activation of the linear actuator, and the fourth end is proximate to the second end prior to activation of the linear actuator, said hollow piston rod further comprising an inner wall;
- a sealed gas chamber defined by the inner wall of the hollow piston rod;
- a pressurized gas contained within the sealed gas chamber prior to activation of the actuator, and
- a burst shim coupled to the hollow piston rod at the third end, for sealing the sealed gas chamber.
2 more elements
A linear actuator comprising:
- a housing having a first end, a second end, and an inner wall having an inner diameter;
- a hollow piston rod, the hollow piston rod defining an interior and having a third end and a fourth end, the third end disposed within the housing and proximate to the first end and the fourth end proximate to the second end prior to activation of the linear actuator;
- a sealed gas chamber defined by the interior;
- a pressurized gas contained within the sealed gas chamber;
- a first flange extending radially from the third end, the first flange having a first outer diameter slidably engaged with the inner wall;
- a second flange extending radially from the third end, the second flange having a second outer diameter smaller than the first outer diameter;
- and
- a conduit defined between the inner diameter and the second flange for passage of the pressurized gas upon activation of the linear actuator.
5 more elements
A linear actuator comprising:
- a housing;
- a hollow piston rod defining an interior, the hollow piston rod disposed within the housing prior to activation of the actuator;
- a sealed gas chamber defined by the interior of the hollow piston rod;
- a pressurized gas contained within the sealed gas chamber prior to activation of the actuator;
- and
- a plug fixed on the hollow piston rod, wherein a portion of a surface area of the plug is in operable communication with the pressurized gas upon activation of the linear actuator to drive the hollow piston rod.
3 more elements
Dependencies are inferred from the claim text.