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05/01/08 | 41 views | #20080101963 | Prev - Next | USPTO Class 417 | About this Page  417 rss/xml feed  monitor keywords

Buoyancy pump device

USPTO Application #: 20080101963
Title: Buoyancy pump device
Abstract: A buoyancy pump device for use in fluid. The buoyancy pump device includes a buoyancy block housing defining a buoyancy chamber therein through which the fluid may flow. A buoyancy block is disposed within the buoyancy chamber to move axially therein in a first direction responsive to rising of the fluid in the buoyancy chamber and a second direction responsive to lowering of the fluid in the buoyancy chamber. A piston cylinder is connected to the buoyancy block housing and has at least one valve disposed therein operating as an inlet in response to movement of the buoyancy block in the second direction and an outlet in response to movement of the buoyancy block in the first direction. A piston is slideably disposed within the piston cylinder and connected to the buoyancy block, the piston being moveable in the first and second directions and responsive to movement of the buoyancy block in the second direction to draw a gas or liquid substance into the piston cylinder through the at least one valve, and responsive to movement of the buoyancy block in the first direction to output the gas or liquid substance through the at least one valve. (end of abstract)
Agent: Patton Boggs, LLP - Dallas, TX, US
Inventors: Kenneth W. Welch, Curtis J. Rothi, Harold L. Rothi
USPTO Applicaton #: 20080101963 - Class: 417061000 (USPTO)
Related Patent Categories: Pumps, Buoyantly Supported
The Patent Description & Claims data below is from USPTO Patent Application 20080101963.
Brief Patent Description - Full Patent Description - Patent Application Claims  monitor keywords

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation of and claims priority to U.S. patent application Ser. No. 11/093,338, filed Mar. 29, 2005, which is a continuation of U.S. patent application Ser. No. 10/270,387, filed Oct. 10, 2002, now U.S. Pat. No. 6,953,328. Both of the above listed applications are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates, in general, to a pumping device, and more particular but not by way of limitation, to a buoyancy pumping device that utilizes a moving volume of water to move gas, liquid and combinations thereof from a first location to a second location.

[0004] 2. Description of Related Art

[0005] There have been many attempts to harness what is commonly referred as to wave phenomena and to translate energy observed in wave phenomena into usable, reliable energy sources. Wave phenomena involves the transmission of energy and momentum by means by vibratory impulses through various states of matter, and in the case of electromagnetic waves for example, through a vacuum. Theoretically, the medium itself does not move as the energy passes through. The particles that make up the medium simply move in a translational or angular (orbital) pattern transmitting energy from one to another. Waves, such as those on an ocean surface, have particle movements that are neither longitudinal nor transverse. Rather, movement of particles in the wave typically involve components of both longitudinal and transverse waves. Longitudinal waves typically involve particles moving back and forth in a direction of energy transmission. These waves transmit energy through all states of matter. Transverse waves typically involve particles moving back and forth at right angles to the direction of energy transmission. These waves transmit energy only through solids. In an orbital wave, particles move in an orbital path. These waves transmit energy along an interface between two fluids (liquids or gases).

[0006] Waves occurring for example on an ocean surface, typically involve components of both the longitudinal wave and the transverse wave, since the particles in the ocean wave move in circular orbits at an interface between the atmosphere and the ocean. Waves typically have several readily identifiable characteristics. Such characteristics include: the crest, which is the highest point of the wave; the trough, which is the lowest point of the wave; the height, which is the vertical distance between a crest and trough; the wave length, which is the horizontal distance between a crest and trough; the period, which is the time that elapses during the passing of one wave length; the frequency, which is the number of waves that passed at a fixed point per unit of time; and the amplitude, which is half the height distance and equal to the energy of the wave.

[0007] There have been many attempts to harness and utilize energy produced by wave phenomena going back to the turn of the last century, such as the system disclosed in U.S. Pat. No. 597,833, issued Jan. 25, 1898. These attempts have included erecting a sea wall to capture energy derived from the wave phenomena; utilizing track and rail systems involving complex machinations to harness energy from wave phenomena; development of pump systems that are adapted only for shallow water wave systems; and construction of towers and the like near the sea shore where the ebb and flow of the tide occurs. Still other attempts have been made as well which are not described in detail herein.

[0008] Each of these systems is replete with problems. For example, certain systems which are adapted for sea water use are subjected accordingly to the harsh environment. These systems involve numerous mechanical parts which require constant maintenance and replacement, and therefore make the system undesirable. Other systems are limited to construction only at sea shore or in shallow water, which limit placement of the systems and therefore make the systems undesirable. Finally, other systems fail to use the full energy provided by the wave phenomena, and therefore waste energy through collection, resulting in an inefficient system.

[0009] Depletions in traditional energy sources, such as oil, have required the need for an efficient alternate sources of energy. The greenhouse effect, which is believed to be causes for such phenomena as global warming and the like, further establish the need for an environment-friendly energy creating device. The decline in readily available traditional fuel sources has lead to an increase in the costs of energy, which is felt globally. This adds yet another need for the creation of an environment-friendly, high efficiency, low cost energy device.

[0010] The need for readily available, cheaper sources of energy are also keenly felt around the world. In places such as China for example, rivers are being dammed up to create a large energy supply for a fast and growing population. Such projects can take twenty or more years to finish. The availability of the energy created by such a damming project does not even begin until completion of the project. Accordingly, there is yet another need for an energy device which provides energy immediately upon construction and has a short construction period.

BRIEF SUMMARY OF THE INVENTION

[0011] The above identified problems and needs are solved by a buoyancy pump device driven by waves or currents according to the principles of the present invention. The buoyancy pump device includes a buoyancy block housing defining a buoyancy chamber therein through which the fluid may flow. A buoyancy block is disposed within the buoyancy chamber to move axially therein in a first direction responsive to rising of the fluid in the buoyancy chamber and a second direction responsive to lowering of the fluid in the buoyancy chamber.

[0012] A piston cylinder is connected to the buoyancy block housing and has at least one valve disposed therein operating as an inlet in response to movement of the buoyancy block in the second direction and an outlet in response to movement of the buoyancy block in the first direction. A piston is slideably disposed within the piston cylinder and connected to the buoyancy block, the piston being moveable in the first and second directions and responsive to movement of the buoyancy block in the second direction to draw a fluid substance into the piston cylinder through the at least one valve, and responsive to movement of the buoyancy block in the first direction to output the fluid substance through the at least one valve.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] A more complete understanding of the method and apparatus of the present invention may be obtained by reference to the following Detailed Description when taken in conjunction with the accompanying Drawings wherein:

[0014] FIG. 1 is an exploded side-elevational view of a buoyancy pump device in a first embodiment in accordance with the principles of the present invention;

[0015] FIG. 2A is a top plan view of the buoyancy pump device of FIG. 1;

[0016] FIG. 2B is a cross-section of FIG. 2A taken along line 2B-2B;

[0017] FIG. 2C is a side plan of the assembled buoyancy pump device of FIG. 1;

[0018] FIGS. 3A-3C are top plan, side, and isometric elevational views of an exemplary buoyancy block in accordance with the principles of the present invention;

[0019] FIG. 3D is a partial cross-section of an exemplary buoyancy block having a telescoping portion;

[0020] FIGS. 3E-3F are top plan views of an exemplary adjustable base portion of an exemplary buoyancy block in a contracted configuration and expanded configuration, respectively;

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