Pumps – Motor driven – Tide or wave motor
Reexamination Certificate
2011-08-30
2011-08-30
Freay, Charles G (Department: 3746)
Pumps
Motor driven
Tide or wave motor
C417S333000, C060S504000
Reexamination Certificate
active
08007252
ABSTRACT:
An apparatus is disclosed for an improved float type wave powered pump that uses the continuous rising and falling wave action in a body of water to pump a fluid. The pump includes piston and cylinder assemblies that are configured for relative reciprocal movement therebetween. One of the assemblies is anchored to the floor of the body of water and the other is vertically moveable in response to a drive float riding on a wave. The pump selectively includes a tide compensating device to reduce the ratio of vertical travel of the drive float to vertical travel of the moveable assembly. The pump also selectively includes a fluid inlet check valve incorporating a support plate of the piston assembly with openings therein and a cover for the same. The pump further selectively includes a directional pressure-activated seal at the point of sliding connection between the piston rod and the cylinder.
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Author Unknown, “Harnessing Wave Power,” reprinted from Inventors' Digest (Published Mar./Apr. 1991).
Swindell, Jeanette, “Bartlesville Inventor Makes Waves with Energy Ideas,” Newspaper Article (Publication Date earlier than Sep. 26, 2006).
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Freay Charles G
Hovey & Williams, LLP
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