Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes scissored supporting levers in drive-means
Patent
1995-06-20
1998-03-03
Noland, Kenneth
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes scissored supporting levers in drive-means
187211, B66B 902
Patent
active
057225133
ABSTRACT:
A scissor lift has a pair of leg assemblies pivotally connected to a base. Relative movement between the legs and the base is opposed by spring assemblies that may be selectively connected to a carriage to vary the bias on the legs. A cam member secured to the leg acts on the carriage to modify the motion between the leg and the carriage to maintain a uniform vertical spring rate.
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Cooke Gary
Pedersen Paul A.
Rowan Richard T.
Sutherland Leonard G.
Noland Kenneth
Orange John R. S.
Pentalift Equipment Corporation
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