Implements or apparatus for applying pushing or pulling force – Single throw lever – Mechanically actuated
Patent
1991-08-19
1992-11-24
Swann, J. J.
Implements or apparatus for applying pushing or pulling force
Single throw lever
Mechanically actuated
403301, 403302, 254DIG3, B66F 308
Patent
active
051656604
ABSTRACT:
An improved drive unit for a jack mechanism which is formed from an inexpensive stamping and it can be attached to the control shaft of a jack by staking, welding or other matter and which can be bent into a shape which has an opening to receive a flatted handle for operating the jack and which also has manual extensions which can be used to manually lower and raise the jack.
REFERENCES:
patent: 1267151 (1918-05-01), Wellman
patent: 1540013 (1925-06-01), Jenkins
patent: 1901915 (1933-03-01), Loughridge
patent: 1982642 (1934-12-01), Curok
patent: 2582560 (1952-01-01), Peterson et al.
patent: 3857548 (1974-12-01), Takeuchi
patent: 4583713 (1986-04-01), Fukura et al.
Engel Darryl L.
Scoville John R.
Swann J. J.
Universal Tool & Stamping Co., Inc.
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