System for the construction of pumps, compressor, and motor...

Details System for the construction of pumps, compressor, and motor... System for the construction of pumps, compressor, and motor...

2008-03-25

2008-03-25

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Intermittently accelerated and receding members rotate in...

Each a working member

C418S034000, C418S035000, C418S037000, C123S241000

Reexamination Certificate

active

07347676

ABSTRACT:
A system includes a rotary chamber and pistons that move in the same direction at varying and alternatively opposite velocities to each other inside a fixed structure. The chamber is rotatively formed by two rotary partial-chambers, each partial-chamber having a piston jointed thereto. The piston closes the associated partial-chamber and penetrates respectively by sliding into a hollow of the other partial-chamber, so as to create at least two compartments that alternatively vary in volume when driven by a mechanism of alternatively opposite variation of velocities.

REFERENCES:
patent: 3592571 (1971-07-01), Drury
patent: 4257752 (1981-03-01), Fogarty
patent: 5101862 (1992-04-01), Leete
patent: 5433179 (1995-07-01), Wittry
patent: 5685269 (1997-11-01), Wittry
patent: 4129395 (1992-05-01), None
patent: 2 262 965 (1993-07-01), None
International Search Report for PCT/BR02/00111; ISA/AT; Mailed: Oct. 23, 2002.

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