Electric heating – Heating devices – Combined with diverse-type art device
Patent
1981-12-31
1984-09-11
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
745518, 745519, 219535, 219547, H05B 318, B62D 112, B62K 2126
Patent
active
044712090
ABSTRACT:
Electrically heated hand grips for the handle bars of vehicles such as motorcycles and the like are fabricated with an inner cylindrical sleeve member molded of synthetic plastic material. An electrical resistance heater wire coil is embedded in each sleeve. The inner surface of said the sleeve includes a plurality of circumferentially spaced and axially extending ribs, and the outer surface of said the sleeve includes a longitudinally extending land and groove pattern. The spaces between the ribs on the inner surface and the grooves on the outer surface of the sleeve have radially coextensive, overlapping circumferential portions where the sleeve is of minimum wall thickness. The resistance wire coil is disposed within said the sleeve member such that it is spaced a substantial distance from the inner surface of the ribs and the outer surface of the lands. The diameter of the heater wire is not less than the minimum wall thickness of the sleeve. The heated hand grip also includes an outer sheath of resilient material which is molded onto and encapsulates the inner sleeve. Electrical lead wires are connected to the ends of said electrical resistance wires.
REFERENCES:
patent: 744739 (1903-11-01), Fliess
patent: 1830221 (1931-11-01), Blue
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