U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5508049

Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 417/330 - Tide or wave motor


Subclass of Class 417 - Pumps
Definition: Apparatus in which the motor has at least one movable working
No. of patents: 84
Last issue date: 09/02/2008


1      
NumberTitleIssue Date
7419366Apparatus for storage of potential energy
An apparatus for storage of potential energy using water from a deep body of water is described. The apparatus comprises one module including a cylinder, a piston slidably connected to the cylinder, a column for storing the water from the deep body of water received...
09/02/2008
7352078Offshore power generator with current, wave or alternative generators
An offshore power generator includes an offshore platform. Current, wind, wave and other renewable energy generators are mounted to the offshore platform. Each current generator has a shroud enclosing a set of blades. A hub member is located within the shroud and ex...
04/01/2008
7310944Wave energy converters (WECs) with velocity multiplication
A WEC system embodying the invention includes a column and shell, arranged to move relative to each other, and a lever-like apparatus having an input end and an output end and an intermediate point, between the two ends, the intermediate point being rotatably connec...
12/25/2007
7199481Wave energy conversion system
A wave energy conversion system converts wave energy within a wave medium into electrical energy. The wave energy conversion system includes a base substantially connected to a wave-medium floor, a tidal platform connected to said base and a tidal float connected to...
04/03/2007
7131269Process and an apparatus for utilizing wave energy
The invention relates to a method for utilising wave energy. In the method, the reciprocating movement of a water mass (5) in the vicinity of the bottom (6) of a water basin is adapted to actuate a body (2) or its part attached to the bottom of ...
11/07/2006
7078827Tidal generator system and method
A tidal generator system is provided that includes a containment tank, and a ring mechanism provided about the containment tank to rise and fall based on tidal actions. A valve mechanism allows a liquid to pass into the containment tank. Additionally, a turbine/gene...
07/18/2006
7042112Wave energy conversion system
An omni-directional system configured to convert the kinetic and potential energy in ocean waves to electrical energy or in some special cases to other forms of energy such as heat, mechanical and pressure energy. The system employs a float moored by a single hydrau...
05/09/2006
7023104Wave energy conversion device for desalination, ETC
An impulse-type “wave motor” employs a seabed-mounted or supported structure mounting a wave energy absorbing panel on a hinged lever arm for reciprocation motion to obtain optimal absorption of wave energy from wave motion in the sea. For deepwater wavelengths ...
04/04/2006
6981373Buoyancy engine
A buoyancy engine, including an upper casing, a lower casing, and a manifold separating the upper and lower casings. The manifold has internal and external control means, that control amounts of liquid entering and leaving the manifold and casings through a primary ...
01/03/2006
6956300Gimbal-mounted hydroelectric turbine
A power plant extracts energy from a free flowing motive fluid by means of a turbine mounted on a gimbal. The shroud element of the fluid intake has external rudders, in conjunction with the gimbal mounting, enabling the enclosed turbine to instantaneously respond t...
10/18/2005
6863806Barge-mounted tidal-powered desalinization system
A tidal-powered desalinization system is mounted on a barge that oscillates about fixed pier structures, generating a two-way pumping action. The two-way pumping action is changed to a single direction flow of seawater. The sea water is directed into an on-board des...
03/08/2005
6864592Sea wave to electrical energy conversion plant
Apparatus for converting the motion of sea wave energy to electrical energy includes one or more float driven linear generators, in which the inertial mass of the float and any linkage means to the linear generator is minimised. In order to generate electrical power...
03/08/2005
6800954System and method for producing energy
A system and method for producing energy comprising an impoundment area having at least one buoyancy device positioned therein and extending from a pressurization assembly. The impoundment area is preferably positioned with respect to a lifting fluid source such tha...
10/05/2004
6768217Wave energy converter system of improved efficiency and survivability
A known type of surface wave energy converter comprises a submerged elongated tube supported by, but being vertically movable relative to, an anchored float. The tube vertically reciprocates in response to overpassing surface waves and drives a transducer for genera...
07/27/2004
6729857Water pressure multiplier energy generation system
An energy conversion system using the static head pressure of large bodies of water to compress a gas. A Pascal hydraulic link between a small piston and a large piston multiplies the force of the large piston compressing the gas. Heat transfer is established betwee...
05/04/2004
6717284Power generating machine with a bellows adaptable to sea waves so as to drive a generator
A power generating machine having a frame provided with a first support, a second support and a third support laterally and adjustably mounted between the first and second supports. A bellows is mounted under the third support and between the first and second suppor...
04/06/2004
6575712Air compressor system
An air compressor system utilized in a body of water that produces compressed air from water wave energy. The air compressor system includes floating structures in a body of water designed to receive ambient air and produce compressed air, utilizing a bel...
06/10/2003
6457307Hydrostatic wave energy conversion system
A system for conversion of hydrostatic pressure variations of sea waves into useful energy is disclosed. The system is comprised of a sealed casing (12) with a membrane-like cover (16). The cover operates piston (52) under the pressure of the waves. The p...
10/01/2002
6435849Fluid pump
A pump (10) comprises a pair of bladders (28,30) attached to respective opposite sides of a flexure plate (32) for pumping fluid by alternately compressing and expanding the bladders. Each bladder has at least one input connector (22, 34) with a one-way v...
08/20/2002
6388342Hydro electric plant
An apparatus and method for converting renewable wave action energy to electrical energy that harnesses fluid wave power by employing a plurality of low-mass buoys floating on a fluid surface connected to low-volume pumps. The pumps transfer fluid from a ...
05/14/2002
6328539Hydraulic device powered by wave
A hydraulic device powered by a wave includes one or more posts secured on a sea floor, a float buoyant on the wave, a housing secured to the posts and having a slidable piston for separating the interior of the housing into two chambers. Four pipes are c...
12/11/2001
6196805Method and apparatus for oscillatingly elevating fluid
A fluid ladder or a fluid lifter and a method for lifting a liquid or a flowable or fluid-like material such as grains, sand, soil, and the like from one level to a higher level preferably through oscillation. The fluid ladder is capable of lifting fluids...
03/06/2001
5929531Lunar tide powered hydroelectric plant
A lunar tide powered hydroelectric plant of variable size and power generation capacity for basing on land or in tide waters. The basic collection of mechanical power is done by torsion spring bank units positioned on a concrete barge. The land-based plan...
07/27/1999
5909060Wave energy transformer
An installation for extracting energy from a liquid in which swell occurs relative to a bottom. The installation includes a first and second container for placing at a determined horizontal first mutual distance at least partially under the surface of the...
06/01/1999
5473892Apparatus for generating high pressure fluid in response to water weight changes caused by waves
A fluid pressurizing unit for generating high pressure fluid by utilizing the water weight changes caused by the presence of a wave crest or wave trough directly above the apparatus. The apparatus is positioned under the surface of a body of water having ...
12/12/1995
5426332Tidal generator
An electric power generator apparatus that generates electrical power from the tidal movements of a body of water by employing multiple energy producing systems. Those energy producing systems include: (1) a moveable tank system associated with hydraulic ...
06/20/1995
5349819Apparatus for generating high pressure water in response to water weight changes caused by waves
A water pressurizing unit for generating high pressure water by utilizing the water weight changes caused by the presence of a wave crest or wave trough directly above the apparatus. The apparatus is positioned under the surface of a body of water having ...
09/27/1994
5346369Bilge pump actuated by wave motion
A pump actuated by a reciprocal oscillating motion, the pump including a casing member enclosing an elongated substantially cylindrical chamber therewithin, a pair of flexible bellows disposed at the opposing distal ends of the chamber, each of the bellow...
09/13/1994
5311064Equipment to extract ocean wave power
An apparatus for extracting ocean wave power includes slidable horizontal support means. A turbine unit is mounted on the slidable horizontal support means and is rotatably engaged with water flow. An extendable ram is coupled to the turbine unit at one e...
05/10/1994
5211545Arrangement for feeding water into a reservoir
Arrangement for feeding water into a reservoir located at a level above that of the ocean by utilising energy produced by the movement of waves thereof. An air cushion-forming portion of a first chamber communicates with an air cushion-forming portion of ...
05/18/1993
5184936Multiple-gas-phase tidal power generation apparatus and method
A tidal power generation apparatus includes a first group of containers fixed in plural piles in a natural sea having a tidal difference in sea level height, which containers are spaced in parallel to one another at fixed intervals, each container of whic...
02/09/1993
5132550Wave powered prime mover
The prime-mover comprises a central inertial barge 1, a first outer wave-engaging pontoon 2 pivotally movable relative to the central barge 1 about the pivotal axis defined by the arrow A, and a second outer wave-engaging pontoon 3 pivotally movable relat...
07/21/1992
5066867Method and device for generating electric power by use of wave force
The invention relates to a method and device for generating electric power by use of wave force. According to the invention, it is possiblke to obtain the required power using the floatation bladders rising and falling repeatedly with waves as a power usi...
11/19/1991
5052902Water-wave-energy converter
What has been invented is a machine constructed according to the apparatus illustrated by FIG. 6 in Sheet 5/9, set out floating on the ocean to convert the energy of the water waves into storable and consumable energies, such as, compressed air, etc, comp...
10/01/1991
5044295Apparatus for removing bilge water out of a boat
An apparatus for removing water out of a boat which comprises: a swingable member which is swingable according to a rolling and/or pitching motion of the boat; and water discharging pump device which is operated by the swinging motion of the swingable mem...
09/03/1991
5027000Method and apparatus for generating electricity using wave energy
A wave power generating system for generating electricity using natural wave power, includes wave energy converters for converting wave energy into air pressure, a constant air pressure tank for storing the air pressure from the wave energy converters to ...
06/25/1991
4754157Float type wave energy extraction apparatus and method
An apparatus and method of obtaining useful energy from wave action in a body of water. The apparatus comprises a cylinder, a reciprocal piston in the cylinder, a piston rod connected to the piston and extending sealably out of the cylinder, a mechanical ...
06/28/1988
4731544Method and apparatus for extracting surf and wave energy
An apparatus and method for using same for extracting energy from waves, including near-shore waves by imparting momentum to an energy roller or energy car. The energy roller or car is moved along a flexible floating belt by the action of waves on the sha...
03/15/1988
4661716Unlimited and continuous pneumatic generating system to be driven with the sea wave force
It is an unlimited and continuous pneumatic generating system to be driven with the sea-wave force (the power to be generated may optionally be designed). This system can effectively absorb the motive force of sea-waves from almost any direction, and can ...
04/28/1987
4625124Sea wave impacted power generating device
A sea wave impacted power generating device, comprising essentially a fix support, a movable bearer, a blade type water wheel, two pressure cylinders, a storage cylinder, two braking means and several floating bodies. Bottom of said movable bearer has sev...
11/25/1986
1      
 
Sign InRegister
Username  
Password   
forgot password?