Patents by Inventor Dennis P. Caldwell

Dennis P. Caldwell 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: 9216367
    Abstract: An improved fluid separator and tester having a vessel, an adjustably buoyant float member, an external surge tank, and a gas vent connected to the fluid separator having a float and gas valve assembly, the improvement comprising a set of risers set to equal height, at least one valve to redirect fluid flow to test flow meters, and a spill preventer having a connection to a vertical gas valve, a housing, at least one internal freely movable float, upper float seat adapted to receive a float to seal and prevent the escape of particulates while allowing the venting of gas, a float support means, and discharge means for expelling the contents, whereby the improvements provide increased accuracy in determining a volume of each type of input fluid during operations, allow for the assessment of proper operation of the meters, and prevent environmental contamination in the event of system malfunction.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 22, 2015
    Inventor: Dennis P. Caldwell
  • Patent number: 7959404
    Abstract: A wind turbine for generating electricity has been developed. The turbine includes a housing for securement to a support. A wheel is mounted within the housing and is rotatable about a horizontal axis. The wheel has an axle assembly and a number of blade assemblies affixed thereto. Each of the blade assemblies has a frame with a spaced-apart pair of uprights and a crosspiece connecting the uprights. Each of the blade assemblies also having a pair of movable blades positioned within the frame with each of the blades being hingedly fastened to a respective one of the uprights. A brake actuator assembly is associated with each of the blades for relieving pressure imparted by strong winds on the blades. A brake operator assembly, disposed principally within said axle assembly, synchronizes the movement of the blades. An electrical current generator is connected to the wheel so as to be powered thereby.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: June 14, 2011
    Inventor: Dennis P. Caldwell
  • Publication number: 20110070067
    Abstract: A wind turbine for generating electricity has been developed. The turbine includes a housing for securement to a support. A wheel is mounted within the housing and is rotatable about a horizontal axis. The wheel has an axle assembly and a number of blade assemblies affixed thereto. Each of the blade assemblies has a frame with a spaced-apart pair of uprights and a crosspiece connecting the uprights. Each of the blade assemblies also having a pair of movable blades positioned within the frame with each of the blades being hingedly fastened to a respective one of the uprights. A brake actuator assembly is associated with each of the blades for relieving pressure imparted by strong winds on the blades. A brake operator assembly, disposed principally within said axle assembly, synchronizes the movement of the blades. An electrical current generator is connected to the wheel so as to be powered thereby.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 24, 2011
    Inventor: Dennis P. Caldwell
  • Patent number: 7748947
    Abstract: A wind turbine for use in generating electricity. The wind turbine includes a housing being secured atop a tower. A wheel is mounted within the housing and is rotatable about a horizontal axis when struck by winds passing over the front of housing. The wheel has a hub and a number of paddles radiating outwardly from the hub and above the housing. An electrical current generator is connected to the wheel so as to be powered thereby. A wind shield is mounted within the housing for selectively preventing winds passing over the front of the housing from reaching the wheel.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: July 6, 2010
    Inventor: Dennis P. Caldwell
  • Patent number: 7611325
    Abstract: A wind collector including a number of upright columns being arranged in a closed geometric form. A roof is affixed to the tops of the columns. A number of horizontal beams connect each adjacent pair of columns together beneath the roof. Each of the beams has an inner surface and an opposed, outer surface. A plurality of movable panels is suspended from the horizontal beams. Each of the panels is hingedly connected, at the top thereof, to one of the beams and, at the bottom thereof, normally contacts and presses downwardly upon the inner surface of another one of the beams whereby passing winds swing the bottoms of the panels inwardly and enter the wind collector.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: November 3, 2009
    Inventor: Dennis P. Caldwell
  • Publication number: 20090081020
    Abstract: A wind turbine for use in generating electricity. The wind turbine includes a housing being secured atop a tower. A wheel is mounted within the housing and is rotatable about a horizontal axis when struck by winds passing over the front of housing. The wheel has a hub and a number of paddles radiating outwardly from the hub and above the housing. An electrical current generator is connected to the wheel so as to be powered thereby. A wind shield is mounted within the housing for selectively preventing winds passing over the front of the housing from reaching the wheel.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventor: Dennis P. Caldwell
  • Publication number: 20090081023
    Abstract: A wind collector including a number of upright columns being arranged in a closed geometric form. A roof is affixed to the tops of the columns. A number of horizontal beams connect each adjacent pair of columns together beneath the roof. Each of the beams has an inner surface and an opposed, outer surface. A plurality of movable panels is suspended from the horizontal beams. Each of the panels is hingedly connected, at the top thereof, to one of the beams and, at the bottom thereof, normally contacts and presses downwardly upon the inner surface of another one of the beams whereby passing winds swing the bottoms of the panels inwardly and enter the wind collector.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventor: Dennis P. Caldwell