Gripping device utilizing a shape memory alloy

Details Gripping device utilizing a shape memory alloy Gripping device utilizing a shape memory alloy

1986-12-23

1990-02-13

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Load shifting

2941191, 901 36, B66C 110, B25J 1500

Patent

active

049000780

ABSTRACT:
A gripping device for gripping or grasping an object within a set of jaws utilizing a shape memory alloy material that is both simple of construction and suitable for use in space as well as on Earth. The shape memory alloy contracts when heated and operates to move the jaw bears in a given direction. When no heat is applied to the shape memory alloy, a returning mechanism moves the jaw bars in the opposite direction. The shape memory alloy material may be in the form of a strap or wire which is easily heated and provides for a fast closing and opening action of the jaws of the gripping device.

REFERENCES:
patent: 3976206 (1976-08-01), Flatau
patent: 4002954 (1977-01-01), Orlando
patent: 4530536 (1985-07-01), Williams
patent: 4627654 (1986-12-01), Van Oost
patent: 4715637 (1987-12-01), Hosada et al.

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