Self-propelled roller drive unit

Details Self-propelled roller drive unit Self-propelled roller drive unit

1983-08-24

1990-12-25

Bertsch, Richard A.

Motor vehicles

With rollers

180 651, 180 656, 446458, B60B 1912, B62D 6300

Patent

active

049795821

ABSTRACT:
A self-propelled roller drive unit with enclosed power source, motor(s) and transmission(s) coupled to external reaction load such as golf bag frame, wheelchair, industrial transport, personal transport or other drive unit.

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patent: 3820617 (1974-06-01), Graff
patent: 3938608 (1976-02-01), Folco-Zambelli
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patent: 4310987 (1982-01-01), Chieffo
patent: 4408502 (1983-10-01), Kraus
patent: 4505346 (1985-03-01), Mueller

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