Supports – Stand – Standard type
Patent
1987-11-12
1989-06-27
Foss, J. Franklin
Supports
Stand
Standard type
248669, 74 8915, 74110, 74 8921, 108147, 297348, F16M 1300
Patent
active
048422339
ABSTRACT:
A lifting mechanism provides double action movement of a ram member supported on a platform along a particular axis between a first lower position and a second higher position. The lifting mechanism includes the following: A motor having a drive shaft extending along an axis. At least one axial drive member is coupled to the platform to provide axial movement of the platform along the particular axis. Gear means is coupled to the drive shaft and the axial drive member to translate the rotary motion of the drive shaft about the perpendicular axis to motion of the axial drive member along the particular axis to provide the axial movement of the platform. A movable ram member is supported on the platfrom and is moveable relative to the platform along the particular axis so that axial movement of the platfrom provides simultaneous movement of the ram member along the particular axis to produce the double action movement of the ram member upon rotation of the motor.
REFERENCES:
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patent: 3210846 (1965-10-01), Balkin
patent: 3805629 (1974-04-01), Martin
patent: 3894601 (1975-07-01), Gestring
patent: 4134689 (1979-01-01), Ahrenskou-Sorensen
patent: 4557454 (1985-12-01), Urella
patent: 4577827 (1986-03-01), Eliscu
patent: 4635492 (1987-01-01), Uebelhart
patent: 4682930 (1987-07-01), Hachisu
Dexta Corporation
Foss J. Franklin
Olson Robert A.
Roston Ellsworth R.
Schwartz Charles H.
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