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US 2007/0175256 A1Published application
Apparatus and method for sleeve or sheet corrugation
AssigneeLink-Pipe, Inc.
InventorsLembit Maimets, Garry Gladstein
Life of this patent
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Abstract
An apparatus and method for the forming of corrugations in cylindrical objects or plain sheets, which include but no limited to two or more rotating spline or keyed shafts with internally grooved sliding wheels. Springs or collars with elastic properties are located between sliding wheels to allow them to keep predetermined distance which varies under axial forces.
Claims9
An apparatus for corrugating sleeves and/or sheets, said apparatus comprising:
- at least two rotatable shafts having longitudinal grooves or keys to transfer rotational movement
- a mechanism to rotate said two shafts;
- a plurality of wheels adapted to slide in an axial direction with internal grooves or keys located on said shafts;
- and
- elastic collars placed between said sliding wheels.
2 more elements
Dependencies are inferred from the claim text.