Patents by Inventor Ernest Henry Tong

Ernest Henry Tong 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: 7001262
    Abstract: A system and method for handling airflow in a paint booth where a primary plenum encloses a secondary plenum having a damper to control the amount of air entering the secondary plenum from the primary plenum. The secondary plenum is installed above a paint spray applicator and an anemometer. A damper at the secondary plenum inlet controls the amount of airflow from the primary plenum in real time based at least in part on the air velocity detected by the anemometer. The present invention can be employed with a system having variable density filter media extending across the primary plenum outlet to regulate the velocities of air moving through various locations of the paint booth.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: February 21, 2006
    Assignee: Ford Motor Company
    Inventor: Ernest Henry Tong
  • Patent number: 6829522
    Abstract: A portable advisory system for balancing airflows in a paint booth includes a portable airflow sensor to measure airflows in the paint booth, and a portable computer connected to the airflow sensor for collecting data from the airflow sensor and guiding an operator through a process of adjusting multiple fan speeds and duct dampers to achieve desired airflows.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: December 7, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Dimitar P. Filev, Ernest Henry Tong
  • Patent number: 6736016
    Abstract: An airflow detection system for a vehicle paint booth. The vehicle paint booth has a first zone and a second zone adjacent to the first zone. An air velocity sensor measures airflow passing between the first zone and the second zone. An air deflector having at least one air deflection surface is located near the flow velocity sensor. At least one air deflection surface directs the airflow toward the flow velocity sensor to improve the reliability of the airflow detection system.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: May 18, 2004
    Assignee: Ford Motor Company
    Inventors: Ernest Henry Tong, Prasad Dev Hanumalagutti
  • Patent number: 6226568
    Abstract: A method of rapidly balancing air flows in a complex paint spray booth having a series of cells supplied by a common air flow that is pushed by an adjustable speed supply fan and then divided into downdrafts for each of the said cells accompanied by cross-flows between said cells. The downdrafts and cross-flows converging into exhaust flows drawn by an adjustable speed exhaust fan, the system having control elements for changing the downdrafts and/or cross-flows, and further having means for passing the exhaust flow through a waste paint water scrubber having an adjustable venturi gap width.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: May 1, 2001
    Inventors: Ernest Henry Tong, Dimitar Filev, Yu-Ning Liu
  • Patent number: 6146264
    Abstract: An automotive paint booth containing multiple contiguous chambers can be supplied with down flowing air streams in the various chambers for removing airborne particulates produced by the painting operations. Cross flow of particulates between contiguous chambers can be controlled by slightly varying the down flow velocities in the respective chambers.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: November 14, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Ernest Henry Tong, Dimitre Filev
  • Patent number: 6139421
    Abstract: A paint spray cell and air plenum assembly, comprising (a) a paint spray cell having a perforate air inlet wall occupying at least a substantial portion of one side of the cell and having at least one electrostatic paint sprayer to direct charged spray particles along a desired path to a receptive target, (b) a plenum having an undivided air supply and an outlet joined to the cell inlet wall to admit the air uniformly therethrough, and (c) variable density filter media at the plenum outlet to create differential velocity flows through said inlet wall that affect paint particles differently in different locations to both optimize paint transfer efficiency to the target and reduce paint particle adherence to objects other than the target.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: October 31, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Ernest Henry Tong, Yu-Ning Liu
  • Patent number: 5743793
    Abstract: An airflow diffuser apparatus for controlling the airflow exiting a filter unit used in a paint booth. The airflow diffuser apparatus includes a diffuser formed of a plate positioned underneath the filter unit to diffuse the airflow exiting the filter unit to provide a more uniform airflow in the paint booth.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: April 28, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventors: Steven James Parks, Ernest Henry Tong