Power plants – Motor operated by expansion and/or contraction of a unit of... – Mass is a solid
Patent
1996-06-03
1998-10-20
Kamen, Noah P.
Power plants
Motor operated by expansion and/or contraction of a unit of...
Mass is a solid
192 82T, 192 85C, F03G 706
Patent
active
058229892
ABSTRACT:
An actuator (A) includes a body (10) in which a plurality of chambers or bores (34) are defined. The bores are interconnected at an inner end by an elongated passage (30). A heater element (32) extends along the elongated passage. The elongated passage and the inner portion of each chamber or bore are filled with a polymeric material which expands and flows on heating, preferably undergoing a solid to liquid phase change. Extensible members (12), such as pistons, diaphragms, bellows, or the like, are mounted in the bores or wells. When the heater heats the polymeric material causing it to expand and flow, the extensible elements (12) extend under high force with limited travel. In one embodiment, the extension of the extensible members moves a thrust bearing (B) causing frictionally engageable plates (18, 22) of a friction member assembly (C) to engage.
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Allen, Jr. Griffin M.
Schneider Edward T.
Sturdevant Michael L.
Kamen Noah P.
TCAM Technologies Inc.
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