Patents by Inventor Shau-Tak R. Chou

Shau-Tak R. Chou 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).

  • Isolation mounting for a cantilevered load
    Patent number: 6378832
    Abstract: Isolation mountings extend in a common plane and the axis of the overhung or cantilevered load is perpendicular to that plane. The isolation mountings are located in recesses formed in the base plate alone or in both the base plate and mounting plate. Where the recesses are solely located in the base plate, installation may simply be placing a washered or large headed screw serially through the isolator, the base plate and threading the screw into the mounting plate or motor shell which remains separated from the base plate. This will be repeated for each isolator. If recesses are located in both the base plate and mounting plate or motor shell, installation simply requires placing the two bottom isolation mountings into the corresponding recesses in the base plate and mounting plate or motor shell.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: April 30, 2002
    Assignee: Carrier Corporation
    Inventors: Wen L. Li, Sohail Ahmed, Shau-Tak R. Chou
  • Active noise control for plug fan installations
    Patent number: 6342005
    Abstract: A plug or plenum fan is located near two walls of the plenum such that they tend to act as the scroll for the fan. Additionally, a partition separates the fan from an adjacent corner further enhancing the formation of a scroll while providing a flow passage and a location for at least a part of the active noise control structure.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: January 29, 2002
    Assignee: Carrier Corporation
    Inventors: Mark A. Daniels, Shau-Tak R. Chou
  • Isolation device and fluid connection
    Patent number: 6299214
    Abstract: An annular isolator is provided having a metal tube which acts as a spring while defining a flow path and a resilient member located between two loading plates. The resilient member supports the weight of one of the members being coupled and the tube acts as spring as to transmitting vibration.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: October 9, 2001
    Assignee: Carrier Corporation
    Inventors: Wen L. Li, Mark A. Daniels, Patrick C. Marks, Shau-Tak R. Chou
  • Fan scroll
    Patent number: 6142732
    Abstract: The angular extent of the flow path in a fan scroll is extended by reducing the rate of radial expansion of the flow path. By extending the angular as circumferential extent of the scroll flow path downstream of the fan impeller ANC structure can be located in/on the scroll while being located a sufficient distance downstream of the impeller. The flow path length can be increased without increasing the cubage of the scroll and, if desired, a further flow path increase can be achieved by a combination of the reduced rate of radial expansion together with increasing the cubage.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: November 7, 2000
    Assignee: Carrier Corporation
    Inventors: Shau-Tak R. Chou, Mark A. Daniels
  • Intergrated active noise control system for air handling unit
    Patent number: 6049615
    Abstract: The internal fan arrangement of an AHU is reconfigured by discharging directly from the scroll into a 90.degree. elbow. The bend of the elbow defines a converging section terminating in a throat which leads to a diverging section. Additionally, the ANC structure is located in the elbow with the noise sensing microphones being located at or near the fan outlet.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: April 11, 2000
    Assignee: Carrier Corporation
    Inventors: Shau-Tak R. Chou, Mark A. Daniels, Duane C. McCormick