Power plants – Motor operated by expansion and/or contraction of a unit of... – Mass is a solid
Patent
1993-04-12
1996-04-23
Lazarus, Ira S.
Power plants
Motor operated by expansion and/or contraction of a unit of...
Mass is a solid
F03G 706
Patent
active
055092691
ABSTRACT:
A guide member is slidably mounted on a rod, a resilient seal bag is provided around a first end portion of the rod and secured to the guide member, and a tubular sealing member is slidably mounted on a second end portion of the rod. The rod is inserted in a heat conductive cylinder secured to the guide member, and wax is filled in the heat conductive cylinder. The seal bag has a base portion and a bag portion, and is engaged with the rod only at the base portion to form a gap between the bag portion and the rod. The gap is charged with lubricating oil. The sealing member has a tubular body, a skirt portion, a closed head portion, and a plurality of annular grooves formed in an inner wall of the body. The base portion is secured to the guide member, and the head portion is engaged with an end of the second end portion of the rod. A seal device is provided between the guide member and the rod so as to prevent the lubricating oil in the seal bag from entering in the sealing member.
REFERENCES:
patent: 3308668 (1967-03-01), Wong
patent: 4095470 (1978-06-01), Sliger
patent: 4507921 (1985-04-01), Hammarstedt
patent: 4691516 (1987-09-01), Fornasari
patent: 5025627 (1991-06-01), Schneider
patent: 5119061 (1992-06-01), Kuze
patent: 5177963 (1993-01-01), Kuze
Heyman L.
Lazarus Ira S.
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