Rotary actuator utilizing a shape memory alloy
Patent
·
OSTI ID:6747937
An apparatus is described comprising; (a) rotary accumulator means for accumulating a length of a shape memory alloy wire; (b) the shape memory alloy wire attached at one end to a point fixed with respect to the rotary accumulator means and attached at a second end to the rotary accumulator means; (c) biasing means for biasing the rotary accumulator means to a first position; and (d) means for heating the shape memory alloy wire to cause the shape memory alloy wire to contract, thereby rotating the rotary accumulator means from the first position to a second position.
- Assignee:
- Boeing Co., Seattle, WA
- Patent Number(s):
- US 4761955
- OSTI ID:
- 6747937
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ACCUMULATORS
ACTUATORS
ALLOYS
CONTAINERS
EQUIPMENT
FABRICATION
HEAT TREATMENTS
HEATERS
HEATING
MATERIALS HANDLING EQUIPMENT
MATERIALS WORKING
MOTION
OPERATION
ROTATION
SHAPE
SHAPE MEMORY EFFECT
TANKS
THERMOMECHANICAL TREATMENTS
WIRES
360101* -- Metals & Alloys-- Preparation & Fabrication
ACCUMULATORS
ACTUATORS
ALLOYS
CONTAINERS
EQUIPMENT
FABRICATION
HEAT TREATMENTS
HEATERS
HEATING
MATERIALS HANDLING EQUIPMENT
MATERIALS WORKING
MOTION
OPERATION
ROTATION
SHAPE
SHAPE MEMORY EFFECT
TANKS
THERMOMECHANICAL TREATMENTS
WIRES