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US 5,183,236 AGranted
Locking device for rectilinear or circular displacement mechanical jacks
AssigneeEts. Cousin Freres
InventorGeorges Droulon
Life of this patent
Estimating the term…
Abstract
The device comprises at least one rod normally locked by notched rollers mounted on pins and cooperating with at least one V-shaped bearing plate having toothed ramps, and the vertical displacement of which is made by rotation of a cam driven by a set of studs rigid with a circular member, with control means being further provided to drive this circular member.
Claims11
A locking device for rectilinear or circular displacement mechanical jacks, comprising:
- at least one rod;
- notched roller means for locking said rod in a locked position thereof;
- at least one V-shaped bearing plate having toothed ramps for cooperating with said notched roller means;
- a rotatable cam for selectively bearing against said at least one bearing plate to effect said locked position of said rod, and releasing said at least one bearing plate and hence said notched roller means to free said rod;
- means to rotate said cam;
- and
- control means to drive said means for rotating said cam.
4 more elements
Dependencies are inferred from the claim text.