Portable expansion device

Details Portable expansion device Portable expansion device

1997-09-29

1999-11-30

Lovering, Richard D.

Implements or apparatus for applying pushing or pulling force

Fluid pressure

Vehicle attached

91174, 91176, 91181, 91182, 25218311, 261DIG26, 422133, 521912, 60205, B66F 324, B66F 336

Patent

active

059928255

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.

REFERENCES:
patent: 1229951 (1917-06-01), Hatch
patent: 2483239 (1949-09-01), Sharpe
patent: 2487920 (1949-11-01), Celenza
patent: 2980063 (1961-04-01), Litz
patent: 3173256 (1965-03-01), McMullen
patent: 3295724 (1967-01-01), Brooks et al.
patent: 3474474 (1969-10-01), Busenkell et al.
patent: 3523679 (1970-08-01), Clay
patent: 3769232 (1973-10-01), Houldridge
patent: 3880595 (1975-04-01), Timmerman
patent: 4883645 (1989-11-01), Pontius et al.

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