WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Results 1-10 of 26,610 for Criteria: Office(s):all Language:EN Stemming: true maximize
prev 1 2 3 4 5 6 7 8 9 10 next
Page: / 2662  Go >
RSS icon map icon

Analysis
Analysis

List Length
No translation
NoCtrTitlePubDateInt.ClassAppl.NoApplicantInventor
1. WOWO/2014/130840 - YAW DRIVE TIDAL TURBINE SYSTEM AND METHOD28.08.2014
F03B 13/26
PCT/US2014/017748LOCKHEED MARTIN CORPORATIONBALBIR, Benjamin
A tidal turbine system includes yaw drive (200) for rotating the turbine between a first position associated with tidal flow and a second position associated with tidal ebbs. The yaw drive is capable of moving the tidal turbine to a position where the tidal turbine is pointed substantially directly into the tidal flow in the first position and substantially into the tidal ebb in a second position. A method for harvesting tidal energy includes rotating the tidal turbine between one of the first position and the second position.

2. WOWO/2014/128502 - IMPROVED UNDERWATER TURBINE INSTALLATION AND REMOVAL APPARATUS AND METHODS28.08.2014
F03B 13/26
PCT/GB2014/050546ANDRITZ HYDRO HAMMERFEST (UK) LIMITEDBETSCHART, Michael
A frame (101) for the installation or removal of an underwater turbine nacelle (151) on a substructure (171). The frame comprises a support which is configured to support the weight of the nacelle during installation or removal, and further comprises a guide (105) arranged to align the frame (101) with the substructure (171) as the frame is moved towards the substructure. The frame particularly aids in installation by guiding the turbine nacelle (151) onto the substructure in a predetermined manner, and aids in removal as the guide allows the frame to be guided onto the turbine nacelle prior to lifting away from the substructure. In another particular embodiment the frame (201) can be suspended from the turbine nacelle (251).

3. WOWO/2014/128349 - ACTUATOR AND METHOD FOR IMPROVING AN ACTUATOR28.08.2014
F03G 7/06
PCT/FI2014/050119SYNOSTE OYHALLILA, Harri
The present invention is about an actuator comprising at least one shape-memory-alloy based converter in a housing and at least one preload spring. The actuator is configured to cause a motion of at least one movable member. The optimal structures along with corresponding methods for improving an actuator are claimed in the independent claims. Preferable embodiments are presented in the dependent claims.

4. WOWO/2014/131014 - SLOTTED LINER DRILLING28.08.2014
E21B 4/02
PCT/US2014/018324SCHLUMBERGER CANADA LIMITEDDUBOSE, Bill B.
Drilling assemblies, systems and methods enable a wellbore to be drilled and lined with a slotted liner. A drilling system includes a liner assembly with a drill string in a bore thereof. The drill string and the liner assembly can be selectively coupled together to restrict relative motion between the liner assembly and the drill string. The liner assembly includes a slotted liner portion through which fluid may flow. As the drilling system is used to drill a wellbore, the liner assembly is simultaneously positioned within the wellbore. Once the wellbore is drilled to a desired depth, the drill string can be disengaged from the liner assembly and retrieved from the well. Production fluids such as oil and gas may then be transferred uphole through the liner assembly.

5. WOWO/2014/130824 - HEAVE PLATES THAT PRODUCE RATES OF CHANGE IN TETHER TENSION WITHOUR GOING SLACK, AND ASSOCIATED SYSTEMS AND METHODS28.08.2014
F03B 13/20
PCT/US2014/017705UNIVERSITY OF WASHINGTON through its CENTER FOR COMMERCIALIZATIONTHOMSON, James, M.
Apparatuses and associated methods for converting wave energy into electrical energy are disclosed herein. In some embodiments, a surface-based buoy can be connected to a magnetostrictive element that changes its output voltage when subjected to the in tension. To keep the heave plate under tension, a tether with a heave plate can be attached to the magnetostrictive element. Since the magnetostrictive element can be sensitive to zero tension (e.g., a slack in the tether) followed by a sudden increase in the tension, in at least some embodiments it is preferred to keep the magnetostrictive element tensioned at all times. In some embodiments of the present technology, an inertia-dominated heave plate may be designed to sink faster than the buoy falls in the trough of the wave, therefore keeping the tether tensioned at all times. For example, the design (e.g., mass, diameter, height) of the heave plate can be such that the static force of gravity S exceeds a sum of the drag D and inertia / under expected wave conditions.

6. WOWO/2014/128729 - HYDRO BUOYANCY WEIGHT POWER GENERATION28.08.2014
F03B 13/00
PCT/IN2014/000115MAHADEVAN, A., S.MAHADEVAN, A., S.
Weight Assembly is launched from launching chamber which is located at the lower part of the water tank. Weight assembly moves upwards due to buoyancy force. Once the weight assembly reached top level of water tank it is lifted from the water by Pulling Unit and arrived at the falling tower. Pulling unit also acts as connecting bridge between falling tower and water tank. Weight is dropped from the falling tower by pulling unit through iron rope which connected with main rotor shaft of generator. Now the weight assembly falls down due to gravity. Falling weight makes Kinetic Energy which is transferred to operate main generator. Once the weight fallen from the top it has also high impact force. Here big water bag is used to convert impact force to Kinetic Energy High impact force weight pushes the water bag water is compressed and flow in a tank where the second additional generator is operated water returns downwards to water bag. The weight assembly falls down and finally compress the pistons of water exhausting unit which has water from launching chamber when water comes downwards to exhausting unit it has high force due to gravity this force is also utilized to operate the third additional generator. Finally after pushing the water exhausting unit weight assembly once again comes to launching chamber through inclined rails and enters through vertical gate now the vertical gate is closed and upper horizontal gate is opened water fills in all sides of launching chamber. Now the weight assembly once again moves upwards due to buoyancy force. All the above process are continued again and again thus 3 generators generate electricity.

7. WOWO/2014/125132 - MACHINE AND SYSTEM FOR PRODUCING ELECTRIC CURRENT21.08.2014
H02N 11/00
PCT/ES2013/000188GARCIA CARVAJAL, AntonioGARCIA CARVAJAL, Antonio
The invention relates to a machine and a system for producing electric current, characterised by comprising an electric motor and a crankshaft from which a plurality of symmetrical hinged arms extend, some of which operate as levers on another crankshaft, and which, by means of toothed wheels, generate the rotation of an electric current generator, the outlet of which connects to the initial motor by means of an electric circuit. The levers take on a back-and-forth movement. The generator can be directly joined to the second crankshaft.

8. WOWO/2014/125288 - GEOTHERMAL ENERGY EXTRACTION21.08.2014
F03G 7/04
PCT/GB2014/050433AVONDALE ASSOCIATES LIMITEDSIMPSON, Robert
A geothermal energy extraction system (100;1000) comprising a conduit (200; 1020, 1030) within an excavated bore(10; 1010). The conduit(200; 1020, 1030) comprises a substantially vertical descending feed section(20; 1020) and an ascending extraction section(30; 1030). At least part of both vertical sections (20;1020, 30; 1030) are located in a geothermal zone (300; 1080) below surface. A plurality of branches(600; 1070)extending from the bore in the geothermal zone (300;1080). The branches (600;1070) are each filled with thermally conductive material.

9. WOWO/2014/127299 - MAGNETOSTRICTIVE DEVICES AND SYSTEMS21.08.2014
F03B 13/14
PCT/US2014/016614OSCILLA POWER INC.NAIR, Balakrishnan
The device generates electrical energy from mechanical motion. The device includes at least one magnetostlictive element and at least one force modifier. The force modifier is coupled to the magnetostrictive element. The force modifier receives an input force and applies a modified force to the magnetostrictive element. Many different systems exist for power generation. With advances in technology comes the need to provide power to operate that technology. Frequently, power generation must be portable or able to collect energy from diverse environments without doing damage to that environment.

10. WOWO/2014/125087 - REDUNDANT PRESSURE CONTROL21.08.2014
F04C 2/12
PCT/EP2014/052950ENERGREEN ASØRKE, Per Reidar
There is provided an electricity generating device comprising a housing (10); a first lobed rotor (21) and a second lobed rotor (22) rotatably arranged in a fluid passage enclosed by the housing (10) such that the lobes of the first (21) and the second lobed rotor (22) intermesh to create a barrier between a high-pressure and a low- pressure side of the housing (10) during operation of the device; a first electricity generator (25) to which the first lobed rotor (21) is coupled, the first electricity generator (25) being capable of varying the load of the first lobed rotor (21); and a second electricity generator (26) to which the second lobed rotor (22) is coupled, the second electricity generator (26) being capable of varying the load of the second lobed rotor (22). There is also provided a method of synchronizing rotational positions of a first lobed rotor (21) coupled to a first electricity generator (25) and a second lobed rotor (22) connected to a second electricity generator (26) in a turbine, said first and second lobed rotors (21, 22) being intermeshed, comprising controlling the first and/or the second generator (25, 26) to adjust a rotational position of the first lobed rotor relative a rotational position of the second lobed rotor to avoid contact between the intermeshing lobes of the first and the second lobed rotors.


Results 1-10 of 26,610 for Criteria: Office(s):all Language:EN Stemming: true
prev 1 2 3 4 5 6 7 8 9 10 next