Patents by Inventor Mark A. Daniels

Mark A. Daniels 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: 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
  • Patent number: 6023940
    Abstract: A split air conditioner unit having a distributor located indoors for delivering refrigerant to a plurality of evaporator flow circuits. The distributor is connected to an outdoor condenser by a refrigerant line containing an expansion device. A strainer is located at the entrance to the distributor that homogenizes the expanded two phase mixture so that refrigerant of equal quality is delivered to each of the evaporator flow circuits.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: February 15, 2000
    Assignee: Carrier Corporation
    Inventors: Alan D. Abbott, Keon-Woo Lee, Christopher G. Repice, S. Rudy Chou, Mark A. Daniels
  • Patent number: 5878740
    Abstract: An apparatus for reducing the resonant type noise generated in a combustion driven heating apparatus. A dissipative device is disposed within a hot gas passageway to absorb and attenuate acoustic wave energy and thereby reducing the resonant noise level of the heating apparatus.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 9, 1999
    Assignee: Carrier Corporation
    Inventors: Brian D. Videto, Mark A. Daniels, Robert H. Swieczkowski
  • Patent number: 5832095
    Abstract: Two microphones spaced along a duct of an air conditioning system provide inputs to circuitry whereby the noise being generated is distinguished from reflected noise. The circuitry imposes a time delay corresponding to the time required for generated noise to pass from the upstream microphone to a canceling speaker. The canceling speaker is driven by the circuitry, subject to the time delay, such that noise at the speaker is canceled by the appropriately driven speaker. In a preferred embodiment movement of the speaker is sensed whereby the actual sound being produced can be compared with the sound required by the canceling speaker driving signal.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: November 3, 1998
    Assignee: Carrier Corporation
    Inventor: Mark A. Daniels
  • Patent number: 5771300
    Abstract: The velocity of the integral speaker coil and cone of the canceling loudspeaker of an ANC system corresponds to the sound being produced by the canceling loudspeaker. By sensing the velocity of the speaker coil/cone and comparing the sensed velocity to the driving signal from the controller, the response time and distances can be shortened.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: June 23, 1998
    Assignee: Carrier Corporation
    Inventor: Mark A. Daniels