Weighted Training Equipment
AssigneeOil Service, Inc.
InventorThomas J. Langston
Life of this patent
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Abstract
Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.
Claims19
Training equipment comprising:
- a hollow shaft having a sidewall defining an internal cavity;
- and
- at least one weight filling at least a portion of the internal cavity,
- wherein the at least one weight is made from a polymer material having a first density.
The training equipment of claim 5, wherein the filler is a metal powder or polyethylene.
Training equipment comprising:
- a hollow shaft having a sidewall defining an internal cavity;
- and
- at least one weight filling at least a portion of the internal cavity,
- wherein the at least one weight comprises a first polymer material having a first density filling at least a first portion of the internal cavity and a second polymer material having a second density different than the first density filling at least a second portion of the internal cavity.
A method of making weighted training equipment comprising a hollow shaft having a sidewall defining an internal cavity, the method comprising:
- injecting a curable composition into at least a first portion of the internal cavity;
- and
- curing the curable composition into a first polymer material having a first density.
Dependencies are inferred from the claim text.