Low pressure actuator

Details Low pressure actuator Low pressure actuator

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 15/10 (2006.01) F15B 15/06 (2006.01)

Patent

CA 2269954

The device comprises an elongated elastomer tube, sealed tightly by clamps at each end against disk shaped end pieces, the one end disk fixed and the other sliding, axially to the other disk, on restraining rods. An orifice in the fixed disk permits the injection of pneumatic pressure causing the expansion of the elastomer tube. Surrounding the elastomer tube is a restraining tube of woven fabric or other material which will not expand radially. The second tube is also affixed to each end disk by the clamps and has sufficient length to reach between the two disks when the disks are at their farthest distance from each other. When the disks are not fully distanced from each other, the outer tube crumples axially but not radially. Action commences when the disks are closest to each other. Controlled pneumatic pressure injected through the orifice causes expansion of the elastomer tube. The outer restraining tube causes all force to be directed to move the sliding disk away from the fixed disk on the guiding mechanism, thus creating an axial force.

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