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US 3,997,176 AGranted
Expansible mandrel
AssigneeBorg-Warner Corporation
InventorsJames A. Wyckoff, William J. Miller
Life of this patent
Estimating the term…
Abstract
An expansible mandrel constructed to radially expand equally comprising a generally truncated polyhedron-shaped core member and a plurality of wedge members defining a cylinder, the core member being axially movable relative to the wedge members. Elastic means surrounding the wedge members maintain the wedge members in position relative to the core member.
Claims5
An expansible mandrel assembly which comprises:
- a support;
- a generally truncated polyhedron-shaped core member movable axially of said support;
- said core member having a plurality of generally planar outer surfaces;
- a plurality of wedge members each having an inner surface which engages an outer surface of said core member and an outer arcuate surface;
- said plurality of wedge members when in concert defining an outer, generally cylindrical surface;
- said wedge members each being axially fixed and radially movable with respect to said support;
- elastic means surrounding said wedge member maintaining said wedge members in position relative to said core and providing a generally cylindrical outer surface;
- and
- means to axially move said core member relative to said support and to said wedge members whereby to vary the outer dimension of said assembly.
6 more elements
Dependencies are inferred from the claim text.