Patents by Inventor Michael Hung

Michael Hung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7131635
    Abstract: A valve apparatus includes selectively releasable engagement apparatus for operatively connecting an actuator to a valve body of a valve having an operating member extending outwardly from the valve body along an axis of the operating member are provided. The engagement apparatus includes a latch arm extending from the valve side of a base, rather than the actuator side of the base. A plurality of protrusions on the valve body and corresponding mating receptacles on the base resist torque forces on the base. A slot in the base adjacent an edge of the latch arm provides passage for tooling used in forming the base. A base in the form of an adapter allows attachment of an actuator not having a selectively releasable engagement apparatus to a valve body that does include a selectively releasable engagement apparatus.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: November 7, 2006
    Assignee: Invensys Building Systems, Inc.
    Inventor: Michael Hung-Sun Oh
  • Patent number: 7111643
    Abstract: An apparatus and method are provided for modifying a flow characteristic, such as a valve characteristic, through use of a flow characterizing device having a segmented flow characterizing channel therein including three or more discrete segments, at least one of which is a through-hole, for modifying a flow of fluid through a flowpath, in which the flow characterizing device is mounted, when a controlling edge, mounted in the flowpath adjacent the flow characterizing device, is aligned with one or more of the three or more discrete segments of the flow characterizing channel. Either or both of the flow characterizing channel and the controlling edge are selectively movable relative to one another.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: September 26, 2006
    Assignee: Invensys Building Systems, Inc.
    Inventor: Michael Hung-Sun Oh
  • Patent number: 7066301
    Abstract: A manual override mechanism is presented for a motor-driven linear actuator that allows the output rack and pinion of the actuator to be manually positioned. Once positioned, the output may be locked by a locking mechanism to prevent this output from translating to its quiescent position. When incorporated in a spring-return linear actuator, the manual override may be used to apply a preload on the spring before the driven device is connected. When the actuator is used to drive a valve or damper, the preload applies a positive closing force on the valve or damper in its zero position to ensure a tight closure of the valve or damper. The locking mechanism engages the gear train and opposes the closing force applied by the spring return of the actuator. To disengage the locking mechanism automatically, the motor applies a forward kick to the gear train. Manual disengagement is also provided.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: June 27, 2006
    Assignee: Invensys Building Systems, Inc.
    Inventors: Michael Hung-Sun Oh, Gerald R. Parsons
  • Patent number: 6902147
    Abstract: A wheeled hydraulic jack with a suspensory lifting device comprises a hydraulic unit, two pivotal cantilever arms and two movable tension links each pivotally mounted on each of the pivotal cantilever arms. The free end of each movable tension link is connected with one end of a cross-wise shaft of the hydraulic unit. A piston of the hydraulic unit moves upwardly and bears against the cross-wise shaft to lift a loading terminal of the pivotal cantilever arms by a suspensory device.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: June 7, 2005
    Inventor: Michael Hung
  • Publication number: 20050035337
    Abstract: A wheeled hydraulic jack with a suspensory lifting device comprises a hydraulic unit, two pivotal cantilever arms and two movable tension links each pivotally mounted on each of the pivotal cantilever arms. The free end of each movable tension link is connected with one end of a cross-wise shaft of the hydraulic unit. A piston of the hydraulic unit moves upwardly and bears against the cross-wise shaft to lift a loading terminal of the pivotal cantilever arms by a suspensory device.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 17, 2005
    Applicants: Victor Hung, Betty Hung, Angie Hung
    Inventor: Michael Hung
  • Patent number: 6810547
    Abstract: A vehicle waxing/buffing appliance capable of having a removable/repositionable secondary handle. The appliance includes at least one adaptor to receive and hold the handle installed in the outer plastic molded housing. The user may install or reposition the handle as desired to help in both the efficiency of the operation and the comfort of the user.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: November 2, 2004
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: 6725976
    Abstract: A manual override mechanism is presented for a motor driven rotary actuator that allows the output of the actuator to be manually positioned. Once positioned, the output of the actuator may be locked by a locking mechanism to prevent this output from rotating to its quiescent position. When incorporated in a spring return rotary actuator, the manual override may be used to apply a preload on the spring before the driven device is connected. When the actuator is used to drive a valve or damper, the preload applies a positive closing force on the damper in its zero position to ensure a tight closure of the valve or damper. The locking mechanism engages the gear train and opposes the closing force applied by the spring return of the actuator. To disengage the locking mechanism automatically, the motor applies a forward kick to the gear train. Manual disengagement is also provided.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: April 27, 2004
    Assignee: Invensys Building Systems Inc.
    Inventors: Michael Hung-Sun Oh, Gerald R. Parsons
  • Publication number: 20040026175
    Abstract: A manual override mechanism is presented for a motor-driven linear actuator that allows the output rack and pinion of the actuator to be manually positioned. Once positioned, the output may be locked by a locking mechanism to prevent this output from translating to its quiescent position. When incorporated in a spring-return linear actuator, the manual override may be used to apply a preload on the spring before the driven device is connected. When the actuator is used to drive a valve or damper, the preload applies a positive closing force on the valve or damper in its zero position to ensure a tight closure of the valve or damper. The locking mechanism engages the gear train and opposes the closing force applied by the spring return of the actuator. To disengage the locking mechanism automatically, the motor applies a forward kick to the gear train. Manual disengagement is also provided.
    Type: Application
    Filed: August 7, 2003
    Publication date: February 12, 2004
    Applicant: Invensys Building Systems, Inc.
    Inventors: Michael Hung-Sun Oh, Gerald R. Parsons
  • Publication number: 20030178257
    Abstract: A manual override mechanism is presented for a motor driven rotary actuator that allows the output of the actuator to be manually positioned. Once positioned, the output of the actuator may be locked by a locking mechanism to prevent this output from rotating to its quiescent position. When incorporated in a spring return rotary actuator, the manual override may be used to apply a preload on the spring before the driven device is connected. When the actuator is used to drive a valve or damper, the preload applies a positive closing force on the damper in its zero position to ensure a tight closure of the valve or damper. The locking mechanism engages the gear train and opposes the closing force applied by the spring return of the actuator. To disengage the locking mechanism automatically, the motor applies a forward kick to the gear train. Manual disengagement is also provided.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 25, 2003
    Applicant: Invensys Building Systems Inc.
    Inventors: Michael Hung-Sun Oh, Gerald R. Parsons
  • Patent number: 6622485
    Abstract: A manually operated zero-load rapid lifting hydraulic jack. The jack has a lifting arm and a lever which are connected properly together by contacting one another. A lifting arm is formed with an integral receiver portion, which could be in the form of a receiving hole, a receiving tube, a receiving block or any infinite variety of receiver configurations, such that one end of the lever can be inserted into or locate over those receivers as described above. In zero load, as the lever is being pressed downwards and the lifting arm axle serves as a fulcrum to drive the lifting arm to move upwards rapidly to a position of contacting with a lift point.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: September 23, 2003
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Publication number: 20030019208
    Abstract: A manually operated zero-load rapid lifting hydraulic jack has a lifting arm and a lever which are connected properly together by contacting one another. As a contact way of the jack lifting arm and the lever, a lifting arm is formed with an integral receiver portion, which could be in the form of a receiving hole, a receiving tube, a receiving block or any infinite variety of receiver configurations, there by, one end of the lever can be inserted into or locate over those receivers as described above. Thereby, in zero load, as the lever being pressed downwards and the lifting arm axle serving as a fulcrum to drive the lifting arm to move upwards rapidly to a position of contacting with a lift point.
    Type: Application
    Filed: July 26, 2001
    Publication date: January 30, 2003
    Inventors: Michael Hung, Michael Hung
  • Publication number: 20020182991
    Abstract: A Vehicle Waxing/Buffing Appliance capable of having a removable/repositionable secondary handle comprises a vehicle buffing/waxing appliance and a handle. At least one adaptor to receive and hold the handle is installed in the outer plastic molded housing. Therefore the user may install or reposition the handle as desired to help in both the efficiency of the operation and the comfort of the user.
    Type: Application
    Filed: September 5, 2001
    Publication date: December 5, 2002
    Applicant: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: 6468049
    Abstract: An air compressor capable of being mounted across a lifting jack is disclosed. The air compresssor outer housing has a lower section that has a inverted “u” shape cavity to be mounted across the two vertical side plates of the lifting jack to be combined into a single unit. Therefore the air compressor can be stored, transported or operated. Within the outer housing of the air compressor, on each side face there is a cavity with a cover for opening and closing. These cavities create storage for the power-cord and hose/connector when not in use. The top surface inside the inverted “u” section is formed with a sloping angle approximately matching the sloping top edge of the two vertical plates. This allows the air compressor to be clamped in an approximate horizontal inclination for easier operation.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: October 22, 2002
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Publication number: 20020139964
    Abstract: A jack lifting arm with a changeable auxiliary disk is disclosed. The primary disk of the jack lifting arm is formed as an annular groove. At least one auxiliary disks is formed for being selected freely by the primary disk. Thereby, the height of the top disk of the jack lifting arm is changeable as desired. Therefore, as the jack is used to lift a heavy object. The primary disk may be connected with the auxiliary disk so that the front travelling length in the jack without carrying any object is reduced.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 3, 2002
    Inventor: Michael Hung
  • Patent number: 6375160
    Abstract: A jack board assembly fixedly mounted on the lift of a garage jack and adapted to lift a load with the lift, including a jack board having a top recess and top blocks around the top recess, and an anti-skid convex pad mounted in the top recess of the jack and defining with the top recess an air chamber, the anti-skid convex pad having a plurality of air vents for exhaust of air from the air chamber when compressed by the load put on it.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: April 23, 2002
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: 6357724
    Abstract: An automatic lifting device with a light module is disclosed. The front end of the automatic lifting device has a lateral side plate at each side, a front shaft, a top plate (saddle), a lifting arm and a carry handle. A selected component of the automatic lifting device is attached with a light module providing light at the front lifting end of the device. The light module is attached to the automatic lifting device by one method selected from a group containing magnetic attraction, adhesive, clamping, snapping on, pressing in, locating in, embedding, screwing etc. so that a sufficient illumination is provided at the correct position to the supporting point for an object to be lifted by the automatic lifting device. The light source of the light module is pivotally connected to the body of same light module. Further the light source of the light module is freely adjustable so the orientation of the light source is also adjustable thus providing correct illumination at correct position.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: March 19, 2002
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: 6317930
    Abstract: A pivotal handle may be adjusted and maintained at a desired angle by manipulating a pair of movable pieces at opposite ends of the handle to permit engagement and disengagement of toothed portions on the ends of the handle and corresponding toothed portions on a pair of fixing seats.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: November 20, 2001
    Assignee: MVP (H.K.) Industries Limited
    Inventor: Michael Hung
  • Patent number: 6264169
    Abstract: A jack with enclosing or cover plates is disclosed, which is especially suited for enclosing the supporting plates at two sides of a four wheel jack and the pump of the jack. The jack can be combined with two supporter enclosing plates and a pump enclosing plate which may have any desired shape or color, so that the outlook of the jack is vivid and various. By the enclosing or cover plates, painting for the related shielding components by baking or injection can be omitted. The cover or enclosing plate can be secured by tenons or screwing lock. Thus, the present invention has a simple structure and can be assembled easily.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: July 24, 2001
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: D452597
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: December 25, 2001
    Assignee: Shinn Fu Corporation
    Inventor: Michael Hung
  • Patent number: D453952
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: February 26, 2002
    Assignee: PUR Water Purification Products, Inc.
    Inventors: Johannes Nikolai Gaston, Douglas James VanOrnum, Michael Hung-Tai Luh