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US 2011/0140328 A1Published application
Hydrostatically Actuated Workholding Apparatus with High Expansion and Recovery Sleeve
AssigneeHydra-Lock Corporation
InventorWilliam M. Andre
Life of this patent
Estimating the term…
Abstract
A workholding apparatus includes a body, and a workholding sleeve composed of metal and carried by the body. A fluid chamber receives a fluid between the body and the workholding sleeve. Under fluid pressure, the sleeve is radially displaceable and recoverable to a high degree. For example, when displaced under fluid pressure, the sleeve experiences substantially complete and repeatable strain recovery of at least about 2% of its overall cross-sectional area. Preferably, the sleeve is composed of Nitinol.
Claims20
A workholding apparatus for holding a workpiece comprising:
- a body;
- a workholding sleeve composed of metal and carried by the body to radially engage the workpiece and, when displaced under fluid pressure, experiences substantially complete and repeatable strain recovery of at least 2% of its overall cross-sectional area, and is recoverable to within 0.01% of its original relaxed diameter after being displaced by said fluid pressure;
- and
- a fluid chamber for housing a fluid defined between the body and the workholding sleeve.
1 more element
A workholding apparatus for holding a workpiece, comprising:
- a body;
- a workholding sleeve composed of Nitinol and carried by the body such that the workholding sleeve is radially displaceable into engagement with the workpiece;
- and
- a fluid chamber for housing a fluid defined between the body and the workholding sleeve.
1 more element
Dependencies are inferred from the claim text.