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US 4,790,200 AGranted
Progressive control
AssigneeDynapac Light Equipment AB
InventorLennart Hallstedt
Life of this patent
Estimating the term…
Abstract
A manually actuated control device comprises an operating component 1 and an adjusting component 4 which are connected to each other via spring elements 3 and 5 in order to achieve a non-linear output motion of the adjusting component 4 responsive to movement of the operating component 1.
Claims3
A manually actuated control apparatus comprising an operating component and an adjusting component;
- connecting means between the operating component and the adjusting component for actuating the adjusting component in response to actuation of the operating component, the connecting means including a first spring means interposed therein for absorbing, as last motion, a portion of the movement of said operating component;
- and a second spring means coupled to the adjusting component for opposing movement thereof, to provide a non-linear relationship between the movement of the operating component and the movement of the adjusting component.
Dependencies are inferred from the claim text.