Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent
1998-06-05
1999-07-06
Scherbel, David A.
Implements or apparatus for applying pushing or pulling force
Step-by-step traveling bar
Clutch actuated
254 89H, 405228, B66F 100
Patent
active
059188600
ABSTRACT:
An uplift assembly has a first uplifter, a second uplifter, a rod enclosed by the first uplifter and the second uplifter, a first positioning plate connected to the first uplifter, a second positioning plate connected to the second uplifter, a first clamping plate clamping the first positioning plate, a second clamping plate clamping the first positioning plate, a third clamping plate clamping the second positioning plate, a fourth clamping plate clamping the second positioning plate, a first cylinder disposed between the first clamping plate and the third clamping plate, a second cylinder disposed between the second clamping plate and the fourth clamping plate, and a base plate disposed beneath the third clamping plate, the fourth clamping plate and the second uplifter.
REFERENCES:
patent: 2830788 (1958-04-01), Bentley et al.
patent: 3203669 (1965-08-01), Johansson
patent: 3901477 (1975-08-01), Ahl
patent: 4277052 (1981-07-01), Kallinger
patent: 4367056 (1983-01-01), Senevirate
patent: 4405115 (1983-09-01), Boyadjieff
patent: 4411408 (1983-10-01), Radovan et al.
Scherbel David A.
Wilson Lee
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