Power plants – Pressure fluid source and motor – Utilizing natural energy or having a geographic feature
Reexamination Certificate
2007-03-13
2007-03-13
Leslie, Michael (Department: 3745)
Power plants
Pressure fluid source and motor
Utilizing natural energy or having a geographic feature
C417S331000, C290S053000
Reexamination Certificate
active
10840906
ABSTRACT:
A submersible power plant10comprises a submersible enclosure12having at least one intake valve16for admitting water at high pressure from the surrounding sea into and air space in the enclosure. An air shaft from the air space96is in communication with the atmosphere for maintaining the air space at approximately one atmosphere. A pump for evacuating water collected in the enclosure includes a buoy62responsive to ocean swells. A piston shaft58connected to the buoy reciprocates in the center bore60of a vertical column52extending upward from the bottom of the enclosure. As the piston shaft rises inflow valves72admit water in the enclosure into a valve housing70in communication with the center bore. As the piston shaft falls water is discharged from the valve housing into the sea through a discharge valve80in the bottom of the enclosure.
REFERENCES:
patent: 3303649 (1967-02-01), Mastini
patent: 3487228 (1969-12-01), Kriegel
patent: 3504648 (1970-04-01), Kriedt
patent: 3970415 (1976-07-01), Widecrantz et al.
patent: 3991563 (1976-11-01), Pelin
patent: 3994134 (1976-11-01), Molnar
patent: 4091618 (1978-05-01), Jackson
patent: 4092828 (1978-06-01), Garza
patent: 4095421 (1978-06-01), Silcox
patent: 4619593 (1986-10-01), Molnar
patent: 6711985 (2004-03-01), Doyle
Beeson Skinner Beverly LLP
Beverly Brian
Leslie Michael
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