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US 5,992,825 AGranted
Portable expansion device
AssigneeTechnical Innovations, Inc.
InventorEdward E. Vollenweider, II
Life of this patent
Estimating the term…
Abstract
An expansion device for doing work comprised of a housing including first and second selectively expandable sections defining an internal chamber which contains a chemical motor. Upon activation of the chemical motor, the first and second chamber are driven apart with sufficient force to allow the device to do work. The chemical motor is generally an irreversible reaction which causes the expansion device to be maintained in an expanded position.
Claims24
An expansion device comprising:
- a housing including first and second sections defining an internal chamber;
- and
- a chemical motor contained within said internal chamber comprising a chemically reactive composition whereby upon reacting said composition said first and second telescoping sections are caused to move opposite each other with sufficient force to maintain the housing in an expanded position.
An expansion device for doing work comprising:
- a housing including a first hollow cylinder at least partially disposed within a second mating cylinder, said first and second cylinders defining an internal chamber;
- and
- a chemical motor comprising first and second reactive constituencies separately maintained within said internal chamber;
- whereby upon introducing said first and second chemical constituencies together said cylinders are driven apart thus causing the device to expand.
1 more element
Dependencies are inferred from the claim text.