Spring counterbalance method and apparatus for variably...

Details Spring counterbalance method and apparatus for variably... Spring counterbalance method and apparatus for variably...

2006-03-28

2006-03-28

Addie, Raymond (Department: 3671)

Bridges

Gangway, ramp, or dock leveler

C014S071100, C014S071300

Reexamination Certificate

active

07017220

ABSTRACT:
A counter balance mechanism for a mechanically-operated, vertically-storing dock leveler that can upwardly bias the dock leveler at desired angles of rotation and downwardly bias the dock leveler at other angles of rotation, and neutrally bias the dock leveler at yet other angles of rotation. A method for assisting the operation of a mechanically-operated, vertically-storing dock leveler of desirable simplicity is also provided.

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Mrs. Baird's Bread Plant Photographs.
Serco Brochure regarding R&M Series, pp. 1-3.
Serco Brochure regarding “E” Series, pp. 1-2.
Serco Brochure regarding later “E” Series, pp. 1-2.

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