Rotary Or Oscillatory Motor Patents (Class 251/59)
  • Patent number: 10329876
    Abstract: A technique facilitates valve operations in many applications including well related applications. A valve utilizes a piston which moves along an arc. The valve has an outer housing and an inner housing spaced to create an arcuate pressure chamber which extends along the arc. A piston is mounted in the arcuate pressure chamber for movement along the arc. A hydraulic force or other force may be selectively applied directly against an end of the arcuate piston to shift the arcuate piston along the arc. In some applications, the piston comprises a cutting edge oriented to enable performance of a cutting operation.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: June 25, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Gary L. Rytlewski, David Carter Allensworth
  • Patent number: 10001573
    Abstract: The present invention relates to the vertical seismic profiling (VSP) of geological formations in which profiling is used to obtain information for performing precise interpretations of geophysical seismic data and better understanding of geophysical information. The disclosure involves using a sound source for generating primary and secondary seismic pulses within well boreholes. The seismic profiling system obtains information regarding a geological formation traversed by a borehole with controllable downhole seismic pulse generators with drill string tool(s). The tool(s) have contact with and are coupled to the formation. A seismic pulsing device (SPD) is attached to a portion of the drill string and a valve controller is used to control opening and closing the valve causing high amplitude short duration ultra wide band pressure pulses, generating primary seismic waves sent into surrounding geological formations.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: June 19, 2018
    Assignee: Teledrill, Inc.
    Inventors: David John Kusko, Gabor Vecseri, Daniel Maurice Lerner
  • Patent number: 9797415
    Abstract: Soft pneumatic actuators based on composites consisting of elastomers with embedded sheet or fiber structures (e.g., paper or fabric) that are flexible but not extensible are described. On pneumatic inflation, these actuators move anisotropically, based on the motions accessible by their composite structures. They are inexpensive, simple to fabricate, light in weight, and easy to actuate. This class of structure is versatile: the same principles of design lead to actuators that respond to pressurization with a wide range of motions (bending, extension, contraction, twisting, and others). Paper, when used to introduce anisotropy into elastomers, can be readily folded into three-dimensional structures following the principles of origami; these folded structures increase the stiffness and anisotropy of the elastomeric actuators, while keeping them light in weight.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 24, 2017
    Assignee: President and Fellows of Harvard College
    Inventors: Ramses V. Martinez, George M. Whitesides
  • Patent number: 9140403
    Abstract: A system for moving an object in one axis that creates highly dispersed but precisely controlled mechanical force to support, manipulate, and maintain an object, tool or application in precise alignment or orientation with respect to a stationary or moving target is disclosed. The system includes one or more fluid containers within a cylindrical enclosure or drum, and a shaft running through longitudinal axis of the drum. The shaft is coupled to the drum by rotating assemblies so that the drum may rotate around the shaft or the draft may rotate inside the drum. The fluid inflatable containers are arranged in a inside the drum around the shaft so that each container exerts expansive force between a vane fixed to the drum and a vane fixed to the shaft. A volume of the fluid may be placed in the one or more fluid containers by control systems. By changing the volume of fluid in the one or more containers, forces are exerted on the vanes and the object is moved.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: September 22, 2015
    Assignee: CBE Global Holdings, Inc.
    Inventors: Jonathan N. Blitz, Peter Childers, James Carucci, Ronald Draper
  • Patent number: 9010723
    Abstract: An electric actuator has a motor, an electricity storing body, a switch and a resetting unit. The switch is provided in a supply path of electric power from the electricity storing body to the motor. The switch opens the supply path for electric power from the electricity storing body to the motor, in response to an instruction from an operator. The resetting unit is operated through receiving a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path of electric power from the electricity storing body to the motor.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: April 21, 2015
    Assignee: Azbil Corporation
    Inventors: Hideaki Someya, Makoto Saruwatari, Takuji Abe
  • Publication number: 20150060707
    Abstract: This present invention relates to a remote electro-hydraulic actuator for actuating of mechanical devices, such as a valve in an internal combustion exhaust pipe. The actuator includes a multi-vane rotational assembly that flows the working fluid through strategically sized flow channels within the structure of the rotational assembly. The size of the holes are sized to help the stability of the valve and can also be provided with pressure check valves or reed valves to dampen the rotation of the valve and reduce any instabilities due to pulsations driven back via the output shaft.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Oswaldo Baasch, Glenn Wethington, Jon A. Bigley
  • Publication number: 20150041689
    Abstract: The subject matter of this specification can be embodied in, among other things, a valve assembly that includes a valve body having a fluid inlet, fluid outlet, and a movable closure member adapted to block fluid flow from the inlet to the outlet through a housing. The housing has an opening adapted to receive an actuator assembly that includes a central stationary shaft having at least one stator vane. A rotating collar is disposed around the stator vane and a portion of the central stationary shaft. The rotating collar has a housing and at least one stop member disposed inwardly in a cavity of the rotating collar. The rotating collar has at least two actuation chambers defined by the inner wall of the cavity in the rotating collar, the stationary vane, and the stop member. The rotating collar is coupled to the movable valve closure member.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: Woodward, Inc.
    Inventor: Robert Piotr Rucinski
  • Patent number: 8931757
    Abstract: An electric actuator has a motor, an electricity storing body, a switch, a setting unit, a resetting unit and a setting-off unit. The switch is provided in a supply path for electric power from the electricity storing body to the motor. The switch opens and closes the supply path. The setting unit is operated through receiving a supply of electric power from the electricity storing body in response to an instruction from an operator. The setting unit opens the switch. The resetting unit is operated through r a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path. The setting-off unit sets off the supply of electric power from the external power supply to the resetting unit after a specific delay time has elapsed.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: January 13, 2015
    Assignee: Azbil Corporation
    Inventors: Hideaki Someya, Makoto Saruwatari, Takuji Abe
  • Patent number: 8864101
    Abstract: A method implemented by a valve operating apparatus for hands free exercising of an in ground utility valve, which may include repeatedly opening and closing the utility valve without requiring the use of a computer program or a physical human manipulation. A valve operating apparatus may include a bi directional hydraulic powered motor which may be coupled to a utility valve stem for the purpose of rotating the valve stem of the utility valve in a closing direction or an opening direction. The direction of rotation, of a hydraulic motor, may be reversed in response to detecting an opening of a preset pressure relief valve.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: October 21, 2014
    Inventor: Lynn A. Buckner
  • Patent number: 8807096
    Abstract: A heat management module of a cooling system of an internal combustion engine which has a valve housing that includes at least one first feed connection for cooling water of a bypass circuit and at least one adjacent second feed connection for cooling water of a radiator circuit. The feed connections can be connected to a discharge connection depending on the position of a valve member accommodated in the valve housing. A driving element which actuates the valve member is provided on the valve housing. The driving element is a hydrostatic servo motor, which produces a rotating driving motion and which uses a feed pressure line that branches from the cooling system for pressurization.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: August 19, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Thomas Traudt
  • Patent number: 8667990
    Abstract: A hydraulic oscillating motor which has at least two working chambers which are coupled via pressure lines to a device for pressure compensation. A first working chamber is connected to a first pressure line and a second working chamber is connected to a second pressure line. The motor further has a device for pressure compensation with a first compensating cylinder and a second compensating cylinder. Each of the compensating cylinders has in each case one compensating volume and in each case one elastic force store for delimiting the respective compensating volume. The compensating volume of the first compensating cylinder is connected to the first pressure line, and the compensating volume of the second compensating cylinder is connected to the second pressure line.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: March 11, 2014
    Assignee: Dr. Ing. H.C.F. Porsche Aktiengesellschaft
    Inventors: Michael Becker, Reinhard Horn
  • Patent number: 8523139
    Abstract: A selector valve operating mechanism is provided with operating pistons which are hydraulic pistons connected through an operation link to a spool of a PTO selector valve, an solenoid valve for hydraulically controlling reciprocation of the operating pistons, and a controller which is a control device for transmitting an operation signal to the solenoid valve. Control of operation of the solenoid valve moves the spool through the operating pistons and the operation link to switch the PTO selector valve.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 3, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Sakamoto, Nagahiro Ogata, Masaaki Yamashita
  • Publication number: 20130112902
    Abstract: A pneumatic seacock retrofit is provided for convenient closing of all or a portion of the seacocks, whether as a matter of every day convenience or for use in an emergency, in which all of the vessel's seacocks can be pneumatically closed at the same time, leaving the possibility of selectively overriding seacock closure, with all control valves operating to provide a momentary pulse of air to the rotary actuators and then return to a neutral position, leaving the actuators free for further control. Moreover, an operator is free to manually close a valve in the event that the pneumatic system fails.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 9, 2013
    Inventors: Seth Joseph Gray, Edward Joseph Gray
  • Publication number: 20110186758
    Abstract: A disc valve hydraulic motor assembly is disclosed that includes a rotary valve that rotates in accordance with the motor output shaft and in which a two-pole bolt magnet is mounted in alignment with the center of the rotating valve to rotate with the rotating valve. The end housing of the disc valve hydraulic motor that is spaced from and disposed beyond the rotating valve is provided with a central opening aligned with the magnet. A stainless steel plug is interposed between the sensor and the interior of the motor so that the sensor is separated from the high pressure hydraulic fluid.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 4, 2011
    Applicant: Calbrandt, Inc.
    Inventors: Bradley J. Goldbeck, Calvin J. Brandt
  • Publication number: 20100139495
    Abstract: The present invention concerns a valve for a home cappuccino maker of the type comprising a boiler and a collector having a column. The valve comprises a valve body, coupling means suitable for fixing the valve to coupling means of the column, and a shutter mobile between a closed position and an open position of a duct. The valve also comprises a basket suitable for cooperating with the coupling means of the column and with the shutter.
    Type: Application
    Filed: July 24, 2006
    Publication date: June 10, 2010
    Applicant: BIALETTI INDUSTRIE S.P.A.
    Inventor: Francesco Ranzoni
  • Publication number: 20090173901
    Abstract: An actuator system (14) comprising a valve assembly (40) having an inner spool (50), an outer spool (60), and a sleeve (70). An assembly (80) directly drives the inner spool (50) to move it relative to the outer spool (60), and thereby hydromechanically causes the outer spool (60) to move relative to the sleeve (70). A control assembly (90) provides current input to the drive assembly (80), which converts current input into mechanical motion. The control assembly (90) senses the position of the inner spool (50) and regulates current in accordance with the sensed position.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 9, 2009
    Inventor: Luc P. Cyrot
  • Publication number: 20090159724
    Abstract: A fluid spray apparatus, such as a multi-function showerhead, produces a pulsating spray pattern by rotation of a turbine in a chamber under the force of the fluid flowing through the fluid spray apparatus. A portion of the fluid flowing through the fluid spray apparatus is used to create a fluidic bearing so that the turbine does not contact a wall of the chamber during normal operation of the fluid spray apparatus.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventor: Mark S. Kacik
  • Patent number: 7419134
    Abstract: A valve actuation assembly includes a housing and a vane connected to a shaft. The vane is at least partially disposed within the housing. The valve actuation assembly further includes a valve assembly connected to the housing and a feedback device connected to at least one of the vane and the shaft. The feedback device is configured to apply a feedback force to the valve assembly.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 2, 2008
    Assignee: Caterpillar Inc.
    Inventor: Christopher Michael Gruel
  • Publication number: 20080203337
    Abstract: An actuator assembly including an actuator housing assembly having a piston rod and a piston body disposed at least partially therein and in substantial linear alignment. A linear variable differential transducer (LVDT) is coupled to the piston rod to provide linear positioning and configured to eliminate rotation of the piston rod. A rotational coupler, in the form of a helical groove and reciprocating guide member, couple the piston rod to the piston body. The rotational coupler is configured to translate linear displacement of the piston rod into rotation of the piston body. A valve shaft is positioned in substantially linear alignment with and surrounding at least a portion of the piston body. A magnetic rotational coupler couples the piston body to the valve shaft. The magnetic rotational coupler is configured to create a magnetic field that translates rotational displacement of the piston body into rotation of the valve shaft.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: Honeywell International, Inc.
    Inventor: James S. Roundy
  • Patent number: 7390310
    Abstract: A locking assembly is provided to simply and effectively prevent any unintentional adjustment of the adjustable valve mechanism in a fluid flow control device, without compromising the function of the device. The locking assembly generally includes at least one gripping arm for frictionally engaging at least a portion of the adjustable valve mechanism, and an actuating mechanism for controlling the deployment and release of the gripping arm. The locking assembly prevents unintentional adjustments that can adversely affect the pressure settings of the fluid flow control device. In particular, the locking assembly prevents unintentional adjustment, such as may be caused by the presence of a strong external magnetic field. The locking assembly can be easily disengaged, such as through the application or removal of an external mechanical force, to allow a clinician to adjust the pressure settings of the fluid flow control device as necessary.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: June 24, 2008
    Assignee: Codman & Shurtleff, Inc.
    Inventors: Daniel McCusker, Alan J. Dextradeur, Rainuka Gupta, Carleton Bryan Southworth
  • Publication number: 20080000820
    Abstract: A liquid filter cartridge system includes a housing, a valve body, a valve actuator, a filter, an inlet passage having a portion extending through each of the valve body and the valve actuator and into the filter, and an outlet passage having a portion leading out of the filter, and extending through each of the valve actuator and the valve body. An interface is located between the inlet passage portions in the valve actuator and the filter and an interface is located between the outlet passage portions in the valve actuator and the filter. The inlet passage interface and the outlet passage interface may lie in the same plane as each other. They may each comprise a face seal comprising an axial seal between the valve actuator and the filter. They may each comprise a seal between the valve actuator and the filter, wherein the two seals are sealed via compression and not via sliding contact.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventor: Alan J. Mitchell
  • Patent number: 7063302
    Abstract: A multiple port valve integrated with the function of the sample shut off valve is disclosed. The integration of the sample shut off function eliminates extra plumbing and labor costs associated with a separate sample shut off valve. Additionally, the multiple port valve integrated with the function of the sample shut off valve provides a shorter equilibration time and less tubing volume.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: June 20, 2006
    Assignee: Siemens Energy & Automation, Inc.
    Inventor: Leroy D. Cordill
  • Patent number: 6983760
    Abstract: A vaned spool type directional control valve used to change a direction of motion of an actuator in an air pressure or oil hydraulic circuit includes a vaned spool having a valve portion and a vane portion integrally formed on a spool shaft. A chamber including a shaft support portion, a valve room, and a vane room is formed corresponding to the vaned spool. Main ports connected to the valve room in the chamber and two vane ports penetrating the opposed sides of the vane room are formed in the directional control valve. The directional control valve is of a pilot operated type so that flow of fluid in a main circuit can be changed by rotating the vane spool using the pressure of a pilot fluid.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: January 10, 2006
    Assignee: Aser Tech Co., Ltd.
    Inventor: Yun Boon Lee
  • Patent number: 6908068
    Abstract: A valve closure assembly (50) for remotely and automatically closing railway tank car valves (V1, V2, V3, V4) characterized by a series of novel adapters (180, 240, 242, 244, 252, 254) for enabling one valve closure assembly to turn the handles of various different valves, including soft-seat valves and hard-seat valves.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: June 21, 2005
    Assignee: Powell Technologies LLC
    Inventors: Richard D. Fortino, David N. Maniez, Jr.
  • Patent number: 6830073
    Abstract: A four-way reversing valve includes a valve casing having a plurality of ports through which fluid flows, a valve main body fixedly installed to the valve casing and having a valve chamber in which a plurality of main port connection holes for selectively connecting the ports are formed, a main spool rotatably installed at the valve chamber of the valve main body, for selectively connecting the ports according to a rotation position, and a spool driving unit for reversibly rotating the main spool by using part of fluid supplied through one of the ports in the valve casing. Thus, the number of welding points is minimized by incorporating the overall pilot valves and excluding additional capillary connection for the pilot valves. Also, manufacturing thereof is made easy and, during the manufacturing and use thereof, the rate of breakdown due to defective welding can be remarkably reduced.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: December 14, 2004
    Assignee: Aser Tech Co., Ltd.
    Inventor: Yun-boon Lee
  • Publication number: 20040129906
    Abstract: The invention provides a cryogenic valve device comprising a valve body in which a cryogenic fluid flows, and a valve member disposed in the duct and connected to a control rod for moving the valve member between a closed position and an open position so as to control the flow rate of the cryogenic fluid. The device further comprises a pneumatic actuator having a chamber containing a piston in connection with the control rod, the chamber being fed with control gas to position the piston in a determined position. The actuator is fixed to the valve body via a chamber interposed between the actuator and the valve body in such a manner as to decouple the actuator thermally from the valve body so as to maintain the temperature of the actuator, and consequently the temperature of the control gas, at a temperature that is intermediate between the temperature of the valve body and ambient temperature.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 8, 2004
    Applicant: SNECMA MOTEURS
    Inventors: Franck Authelet, Michel Cramer, Damien Feger, Jean-Luc Pattyn
  • Publication number: 20040108478
    Abstract: A circuit (10) for operating a bi-directional air motor (12) of a valve closure system for enabling a tank valve to be discretionally operated to either open or closed condition either at the tank by attending personnel or from a remote location, with the capability of closing the tank valve in the event of emergency from a remote location in the absence of attending personnel. The circuit can be constructed using two commercially available valve assemblies ((24, 26).
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Applicant: Powell Fabrication & Manufacturing, Inc.
    Inventors: Richard D. Fortino, David N. Maniez
  • Patent number: 6742762
    Abstract: A display device capable of switching over between vertical and horizontal display on a screen without using a frame memory is provided. A display device has a source signal line driver circuit (102), a first gate signal line driver circuit (103), and a second gate signal line driver circuit (104). The scanning direction of the first gate signal line driver circuit (103) is perpendicular to the scanning direction of the source signal line driver circuit (102), and the scanning direction of the second gate signal line driver circuit (104) is perpendicular to the scanning direction of the first gate signal line driver circuit (103). During normal display, vertical scanning of the screen is performed by the first gate signal line driver circuit (103). Images are displayed in a direction that is in accordance with the scanning direction of the first gate signal line driver circuit (103).
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 1, 2004
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Jun Koyama
  • Patent number: 6691587
    Abstract: Actuators for subsea downhole chokes have tended to include hydraulic pistons which are prone to failure and crude in accuracy. The invention provides an actuator (1) having first and second rotary motors (2, 16) and an output region (3) arranged to engage a load, such as a choke sleeve. In a first mode of operation, the first rotary motor (2) imparts linear motion to the output in a first screw connection (4, 5). In a second mode of operation, the second rotary motor (16) imparts linear motion to the output via a second screw connection (12, 14). The provision of screw connections permits gradual linear motion of the output to be achieved. The provision of two motors permits continuing performance in the event of failure of one of the motors.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: February 17, 2004
    Assignee: ABB Offshore Systems Limited
    Inventor: Christopher Richard King
  • Patent number: 6685159
    Abstract: A valve system (10) that employs a piezo-electric element (38) to activate a fluid flow valve (18) so as to use a minimal amount of electrical energy. The piezo-electric element (38) activates a pilot pressure valve (36), which allows a control fluid to pass to a main control valve (44). The control fluid causes the main control valve (44) to activate a working element (16), which in turn operates the fluid flow valve (18). A switching assembly (70) is employed to activate the piezo-electric element (38). The switching assembly (70) can include various types of switching devices, such as RF switching devices, optical switching devices, infrared switching devices and low voltage electrical switching devices.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: February 3, 2004
    Assignee: Ross Operating Valve Company
    Inventor: Richard E. Schnell
  • Patent number: 6543232
    Abstract: A valve assembly that is useful for controlling fuel delivery utilizes turbine power available from the steady state fuel flow within the valve assembly. A turbine element, which is moved by the steady state fuel flow, provides a motive force to a valve element that controls fuel delivery through selected outlet members of the valve arrangement. A rotating cage valve member preferably is coupled with the turbine element so that the valve member rotates responsive to movement of the turbine element. A controller determines the rate of rotation of the valve member and selectively controls a braking actuator to control the movement of the turbine element and the valve member.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: April 8, 2003
    Assignee: United Technologies Corporation
    Inventors: Torger J. Anderson, William Proscia, Jayant S. Sabnis
  • Patent number: 6511040
    Abstract: Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined therethrough, including a “loop” groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A rotary piston is rotatably received in the housing. The piston has a top and a bottom with an intermediate wall connected there between, and an actuating shaft extending through the housing, which is rotated by movement of the rotary piston. The seal member extends into the housing and is in contact with the top and bottom of the rotary piston all the times. The rotary piston moves free of contact with the interior surface of the housing and this one seal member provides a seal for the joint created between the halves of the housing, the chambers of the housing as well as the actuating shaft. Movement of the piston is effected by air pressure and return motion of the piston can be air driven or spring assisted.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: January 28, 2003
    Inventor: Murray J. Gardner
  • Patent number: 6452648
    Abstract: A simple method for preventing oxidization of an aluminum surface of terminal electrode, increase of pressure contact resistance, unstability and reduction of connection reliability is provided. In a terminal electrode part on a reactive matrix substrate, for being connected to an external drive circuit, connecting electrodes are formed by using aluminum or an aluminum alloy, at least their surfaces connected to TCP are covered with an insulating film of aluminum oxide or consisting of a laminate film of aluminum oxide aluminum hydroxide, and the insulating film is selectively removed in a step subsequent to the final step in a cell formation process. In this way, adverse effects of the heat treatment processes such as the annealing in the array formation process and the orientation film sintering of the cell formation process and the oxidization of the connecting electrode surface in the washing.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: September 17, 2002
    Assignee: NEC Corporation
    Inventor: Akitoshi Maeda
  • Publication number: 20020008217
    Abstract: A solid imaging device comprises a substrate including a semiconductor layer, a middle layer and a support layer, multiple pixels that each have a photoelectric conversion unit that includes a diffusion layer formed on the surface of the semiconductor layer, and insulating areas that are located such that they reach from the surface of the semiconductor layer to the middle layer and work together with the middle layer to electrically separate the pixels from each other.
    Type: Application
    Filed: May 15, 2001
    Publication date: January 24, 2002
    Inventors: Tomokazu Kakumoto, Yoshio Hagihara
  • Patent number: 6318701
    Abstract: Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined there through, including a “loop” groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A rotary piston is rotatably received in the housing. The piston has a top and a bottom with an intermediate wall connected there between, and an actuating shaft extending through the housing, which is rotated by movement of the rotary piston. The seal member extends into the housing and is in contact with the top and bottom of the rotary piston all the times. The rotary piston moves free of contact with the interior surface of the housing and this one seal member provides a seal for the joint created between the halves of the housing, the chambers of the housing as well as the actuating shaft. Movement of the piston is effected by air pressure and return motion of the piston can be air driven or spring assisted.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: November 20, 2001
    Inventor: Murray Joseph Gardner
  • Patent number: 6276660
    Abstract: A pair of rotary pistons each have a drive shaft connectable therewith through respective one-way mechanisms. Each of the clutch mechanisms has a wrapped spring member surrounding the shaft and a linearly moveable piston to effect an operative connection between the wrapped spring and the shaft. Each linearly moveable piston controls fluid flow to one of the rotary pistons such that the linearly moveable piston will enforce actuation of the wrapped spring prior to the introduction of fluid pressure at the respective rotary piston.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: August 21, 2001
    Assignee: General Motors Corporation
    Inventor: Scott Henry Wittkopp
  • Patent number: 6274885
    Abstract: In producing a semiconductor device by annealing with laser light irradiation, while a linear laser light is scanned in a direction perpendicular to a line, the annealing is performed for a semiconductor material. In this state, since an anneal effect in a beam lateral direction corresponding to a line direction is 2 times or more different than that in the scanning direction, a plurality of semiconductor elements are formed along a line direction in which the linear laser light is irradiated. Also, a line direction connecting the source and drain region of a thin film transistor is aligned to the line direction of the linear laser light.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 14, 2001
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Naoto Kusumoto, Koichiro Tanaka
  • Patent number: 6170801
    Abstract: A valve closure system for rotating a rotatable actuator of a valve relative to a body of the valve to operate the valve from open to closed. The system contains a motor having a rotatable shaft, a mounting that comprises plural parts including a bracket, for associating the motor with the valve, and a coupling for coupling the motor shaft to the valve actuator to impart rotation of the motor shaft to the valve actuator to operate the valve closed. The bracket comprises a plate having a surface defining a notch that has a) an entrance at a perimeter of the plate and b) a shape enabling the plate to associate with the valve body by i) disposing the plate alongside the valve body with the notch entrance aligned with the valve body and ii) then moving the plate laterally of the valve actuator axis to cause of the valve body to pass through the notch entrance and enter the notch.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: January 9, 2001
    Assignee: Powell Fabrication & Manufacturing, Inc.
    Inventors: Duane Powell, Robert B. Bebow
  • Patent number: 6152706
    Abstract: A pneumatically operated reciprocating pump and pneumatic control means therefor having in separate chambers a geared air flow control mechanism and a piston/piston rod sub-assembly. The geared air flow control mechanism has two toothed gear members, the first being quasi-circular with upper and lower fins and the second being semi-circular and having two sealing members and fins attached thereto. The gear members are mounted in tooth meshing relationship within a gear chamber disposed above the piston chamber. Two sealable passages connect the gear chamber to the piston chamber, one passage communicating directly with that portion of the piston chamber above the piston and the other communicating by means of an external tube system with that portion of the piston chamber beneath the piston. The gear having the two sealing members attached thereto is disposed so that each sealing member will alternately properly seal a corresponding sealable passage when the gear is sufficiently rotated thereto.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: November 28, 2000
    Inventor: Gustav Andrew Lund
  • Patent number: 6102362
    Abstract: A gas motor actuator is provided for opening or closing an actuated valve, such as a pipeline valve, using power gas, which is a gas under pressure. The gas motor actuator includes a gas turbine motor, a high-volume shuttle valve coupled to the gas turbine motor, and a pair of control-limit valve assemblies for delivering power gas to the shuttle valve. One control-limit valve assembly is for opening the actuated valve, and the other is for closing the actuated valve. The gas motor actuator can receive a signal to open or close the actuated valve, which allows pilot gas to open a control valve portion of one of the control-limit valve assemblies, allowing power gas to pass through the control portion to the shuttle valve. The power gas passes through the high-volume shuttle valve, through the gas turbine motor, and back to the shuttle valve for discharge as an exhaust. The power gas rotates a shaft in the gas turbine motor, which, through gears, opens or closes the actuated valve.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: August 15, 2000
    Inventor: David P. Gerber
  • Patent number: 6021998
    Abstract: A rotary power actuator has an oscillating input member and an intermittent rotary output member. A controllable one-way mechanism, which is drivingly connected between the oscillating input member and the rotary output member, accommodates the intermittent motion of the output member. The input member and the one-way mechanism are controlled by hydraulic fluid during power actuation. The input member is returned to a neutral central position by a mechanism system consisting of a spring and ball arrangement while the one-way is maintained in the overrun condition. The output member is connected with a rotary valve member which is stepped to selected valve positions when the actuator is powered and retains the selected valve position when the input member is returned to the neutral central position.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: February 8, 2000
    Assignee: General Motors Corporation
    Inventor: Paul Dwight Stevenson
  • Patent number: 6009574
    Abstract: A pulsing valve for routing water flow from an inlet line to outlet lines connected to water jets arranged in an array to massage an occupant of a whirlpool spa or bathtub is provided. The pulsing valve includes a water turbine driving a selector disk through a reduction gear drive. The selector disk contains openings which oppose individual outlet water lines and direct water flow to them. Rotation of the selector disk switches or cycles pressurized water flow among the individual outlet water lines, causing the massaging water jet location to move, improving the quality of the resulting massage. The speed of the cycling of the water can be changed by changing the pressure of the water delivered to the water turbine. Additionally, the water turbine can be powered by tap water instead of pressurized water and the valve can be used to cycle tap water to the individual jets instead of cycling pressurized water.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 4, 2000
    Inventor: Gerald W. Moreland
  • Patent number: 5975106
    Abstract: The present invention relates to a novel single acting, valve closing actuator that when actuated is capable of closing an attached existing plug or gate valve, one that opens and closes within one quarter turn of operation. The newly designed actuator is cylindrically quadrant shaped and utilizes an extensible air bladder to actuate an internal rigid vane, causing the attached vane shaft to rotate, thereby closing a connected existing valve. In the preferred embodiment, the air bladder is comprised of a laminate of silicone rubber bonded to an exterior coating made of Kevlar. In an alternative embodiment, two air bladders are used to provide a double acting actuator, where a remote valve reset can be accomplished. Independent stand-alone operation is provided by using a pressurized source of CO.sub.2 to inflate the air bladder and a rechargeable battery to operate the air solenoids.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: November 2, 1999
    Inventors: Douglas A. Morgan, Edward J. Turk
  • Patent number: 5924442
    Abstract: A countertorque arm assembly mounts onto a pressure cylinder valve body for cradling an actuator that operates to rotate the valve stem in response to a sensed condition.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: July 20, 1999
    Assignee: Capital Controls Company, Inc.
    Inventor: James Vorosmarti
  • Patent number: 5810051
    Abstract: The valve operating apparatus cycles valves between open and closed positions. The valve operating apparatus includes a trailer for use in towing behind other vehicles, for instance, behind a pickup truck. The trailer includes an engine, pump, battery, reservoir and a bidirectionally oriented motor which is suspended from a telescoping extension bar. The operation of the valve operating apparatus is substantially balanced and requires very little effort by the operator to operate. Specifically, the operator does not have to push down or lift the apparatus as it is substantially balanced.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: September 22, 1998
    Assignee: Rex International USA Inc.
    Inventors: John A. Campagna, Jon Stevenson
  • Patent number: 5690144
    Abstract: A directional control valve is provided for switching the mode of operation in a heat transfer system which includes a compressor, for compressing a refrigerant, with discharge and suction ports, first and second heat exchangers, and an expansion valve provided between the first and second heat exchangers. The directional control valve includes a cylindrical valve body with a high pressure port which is fluidly connected to the discharge port through a conduit, a low pressure port which is fluidly connected to the suction port through a conduit, first and second ports which are connected to the first and second heat exchangers respectively through conduits. The directional control valve further includes a first valve element which is enclosed within the valve body and is rotational between first and second rotational positions about the axis of the valve body and an arrangement for rotating the first valve element between the first and second positions.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: November 25, 1997
    Assignee: Ranco Japan Ltd.
    Inventor: Ikuo Takahashi
  • Patent number: 5622202
    Abstract: A tamper proof fire hydrant which may only be operated by the application of pressurized fluid. The pressurized fluid engages the fire hydrant and travels through a pathway in the upper portion of the fire hydrant. The pressurized fluid engages a turbinelike impeller and then the pressurized fluid pressure rotates the impeller, the impeller is connected to a worm gear and turns the worm gear which then operates to open the hydrant's water main valve. Later the flow of fluid is then reversed in order to turn the turbinelike impeller in the opposite direction thereby causing the worm gear to operate to close the hydrant's water main valve. A cylinder and piston may be used in place if the impeller and worm gear, to open and close a water main valve in response to the application of pressurized fluid to the fire hydrant from an external source.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: April 22, 1997
    Inventors: Mitchell K. Etter, Leonard F. Gropper, III
  • Patent number: 5490932
    Abstract: A control valve for a water treatment system which includes a turbine rotatably mounted within a water receiving chamber. A pair of nozzles communicate water from a water receiving chamber to the turbine in a driving relationship. The nozzles each define a passage, preferably converging slightly in cross-section and defining centerlines that converge and intersect at a region swept by the turbine. Preferably, the intersection of the centerlines occurs intermediate a circle defined by central regions of the turbine blades and a circle defined by peripheral edges of the turbine blades. At least one of the nozzles is slidably held in a slot formed in a dividing wall forming part of the control valve and is replaceable by a plug. A confronting surface defines a uniform gap between an outlet side of the nozzles and a peripheral portion of the turbine.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: February 13, 1996
    Assignee: Kinetico Incorporated
    Inventors: Christopher L. Hansen, Stuart L. Park
  • Patent number: 5447285
    Abstract: The invention relates to safety device for a cylinder valve automatic switching unit, wherein said valve is automatically closed when some abnormality such as down of an air pressure takes place. A first air-operated selector valve 8 is installed which causes air flowing out of a reservoir tank 10 to flow into a second supply line 3 when air pressure is reduced, whereby a cylinder valve automatic switching unit 1 in the opening situation is caused to make a closing motion for closing a cylinder valve in the opened situation. And, a second air-operated selector valve 9 is further installed which discharges air flowing out of a first supply line 2 to the atmosphere when the air pressure is reduced.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: September 5, 1995
    Assignee: Teisan Kabushiki Kaisha
    Inventor: Kazuo Yokogi
  • Patent number: 5409034
    Abstract: An electrically actuated valve for control of a pressurized fluid, particularly a sanitary valve, comprises a rotor (15) arranged in a housing (1) between an inlet passageway (6) and an outlet passageway (7). The rotor (15) is rotatable under the action of the pressurized fluid and transports portions of the fluid from the inlet passageway (6) to the outlet passageway (7). There is an operational connection between the rotor (15) and an element (19) rotatably arranged in a chamber (21) filled with an electro-viscous liquid (22). The electro-viscous liquid (22) is arranged between two electrodes (23, 24) to which as high voltage (25) can be applied. In one embodiment of the invention the rotor (15) also forms the closure element of the valve, which is braked to a various extent by the rotatable element (19) arranged in the electro-viscous liquid. In a further embodiment rotation of the rotor will supplied to a closure member via the rotatable element, which will then be an element of a clutch, and gear means.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: April 25, 1995
    Assignee: Hansa Metallwerke AG
    Inventors: Ulrich Ostertag, Reinhard Ostertag