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US 5,472,172 AGranted
Lever stop for a lever operated hoist
AssigneeIngersoll-Rand Company
InventorLeslie J. Sell
Life of this patent
Estimating the term…
Abstract
A lever rotation limiting device which permits lever orientation anywhere within the full arc of rotation plus an additional degree of rotation to permit effective operating range as, for example, in a lever operated hoist.
Claims7
A lever stop for a lever operated hoist comprising:
- a stop ring mounted for rotation about a common axis of rotation of a reciprocating operating lever of a hoist intermediate said lever and said hoist;
- said stop ring being provided with a first stop surface and a second stop surface;
- a first stop means on said lever for coacting with said first stop surface for permitting limited rotation of said lever relative to said stop ring;
- and
- a second stop means on said hoist for coacting with said second stop surface for permitting limited rotation of said stop ring relative to said hoist, said first stop means and said second stop means together permitting unlimited positioning of said lever about its axis of rotation while preventing unlimited lever rotation.
2 more elements
A lever stop for a lever operated hoist according to claim 6, wherein said stop provided with diameter reducing stops and a diameter increasing boss.
Dependencies are inferred from the claim text.