Method and apparatus for angularly positioning a shaker...

Details Method and apparatus for angularly positioning a shaker... Method and apparatus for angularly positioning a shaker...

2008-05-13

2008-05-13

Lazo, Thomas E. (Department: 3745)

Motors: expansible chamber type

Hydro-pneumatic

C092S034000, C060S415000

Reexamination Certificate

active

07370568

ABSTRACT:
An apparatus for angularly positioning a shaker bed, including a discharge end, includes an air source providing pressurized air, an hydraulic tank in selective communication with the air source and containing a quantity of fluid, at least one bellow in selective fluid communication with the hydraulic tank, and a lift control assembly controlling communication of pressurized air between the air source and the hydraulic tank and controlling communication of fluid between the hydraulic tank and the at least one bellow.

REFERENCES:
patent: 4882054 (1989-11-01), Derrick et al.
patent: 5156749 (1992-10-01), Williams
patent: 5614094 (1997-03-01), Deister et al.
patent: 5934414 (1999-08-01), Staczek
patent: 6412644 (2002-07-01), Crabbe et al.
patent: 7168569 (2007-01-01), Peresan

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