Patents by Inventor Wen H. Liu

Wen H. Liu 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: 10947476
    Abstract: Provided herein is a lubricant comprising a compound of Formula I: wherein R1 and R2 are independent and have the structure selected from —(CF2O)x(CF2CF2O)y(CF2CF2CF2O)z(CF2CF2CF2CF2O)w—, x, y, z and w are selected from an integer from 0 to 30; p, and q are selected from an integer from 0 to 3; A and B are independent and have the structure selected from: —(CH2CH(OH)CH2O)jH, and j is an integer selected from 0 to 3.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 16, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Yu Lu, JiPing Yang, Jingyuan Zhuo, Qian Guo, Wen H. Liu
  • Publication number: 20200002640
    Abstract: Provided herein is a lubricant comprising a compound of Formula I: wherein R1 and R2 are independent and have the structure selected from —(CF2O)x(CF2CF2O)y(CF2CF2CF2O)z(CF2CF2CF2CF2O)w—, x, y, z and w are selected from an integer from 0 to 30; p, and q are selected from an integer from 0 to 3; A and B are independent and have the structure selected from: —(CH2CH(OH)CH2O)jH, and j is an integer selected from 0 to 3.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 2, 2020
    Inventors: Yu LU, JiPing YANG, Jingyuan ZHUO, Qian GUO, Wen H. LIU
  • Patent number: 5057130
    Abstract: A centrifugal cooling device includes a housing having a water tank, a water valve, an overflow pipe and an outlet at its lower portion. A number of louvers are provided on a perimeter and an upper portion of the housing with a number of long slits formed between. Each perimetrical louver includes an inner louver and an outer louver which are slanted downwardly toward each other. A gap is formed between each inner and outer louver. A ring portion is formed on an upper central portion of the housing. A number of fixed stands extend downwardly from the ring portion and a mounting means is attached to the lower ends of the fixed stands. A hole is centrally formed on the mounting means for the installation of the motor. A conical rotor plate is rotatably mounted on a spindle of the motor. Centrifugal blades are provided around an edge portion of an upper surface of the conical rotor plate. A plurality of fan blades are provided on an edge portion of an underside of the conical rotor plate.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: October 15, 1991
    Inventor: Wen H. Liu
  • Patent number: 4853162
    Abstract: Improvements in a centrifugal cooling tower which include a housing having a water tank, a water valve, an over-flow pipe and an outlet at its lower portion. The housing has louvers on its perimeter and upper portion with louvers defining a number of long slits for air to be readily drawn in. A screen structure near the upper inside of the housing collects the upwardly rising water vapor to form condensated which falls down into the tank to be used for re-circulated. Fixed beams and a motor are mounted on a fixed post in the inside center of the body frame. Supports are fixed to the post respectively by a deflection screen member and a perforated drum of the rotating cylinder supported in position by a shaft. The perforated drum has a spiral blade fan for drawing in a large amount of outside air to perform heat exchange with droplets of water.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: August 1, 1989
    Inventor: Wen H. Liu
  • Patent number: 4687603
    Abstract: A counter-flow forced-draft type cooling tower comprising an outer structure, the top of which has an opening, a centrifugal fan which is an integral part of a rotatable cylinder. The rotatable cylinder has numerous small apertures. A screen which is coaxial with the cylinder. A motor mounted underneath the cylinder which rotates the cylinder. An annular corrugated water guiding plate on the side wall of the outer structure, an inclined water collecting plate under the water guiding plate. Ventilation louvers which are disposed underneath the outer structure. A water tank which is disposed under the louver to collect the cooled water and which has a floating valve to control the amount of water contained therein. The lower provides an inlet for outside air. The air then flows upwards, and is sucked into the rotating cylinder by the centrifugal fan, which also slings hot water radially out of the cylinder. Next the air goes out through the opening of the top cover.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: August 18, 1987
    Inventor: Wen H. Liu