Hydraulic hoist formed from memory alloy

Details Hydraulic hoist formed from memory alloy Hydraulic hoist formed from memory alloy

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 15/16 (2006.01) F15B 15/14 (2006.01)

Patent

CA 2371380

A telescoping hydraulic hoist with tube stages formed from a heat treated aluminum alloy from one of the series 2000, 6000 or 7000 aluminum alloys. These alloys retain good "memory" properties, and under the force of a pressure spike undergoes a momentary elastic deformation which acts as a shock absorber, expanding the tube wall to absorb the peak stresses and resist buckling. The hoist of the invention is thus much lighter than a comparably rated steel hoist, and much more resistant to corrosion.

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