Patents by Inventor William E. Wright, Sr.

William E. Wright, Sr. 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).

  • Molded drain connection with insert
    Patent number: 4679405
    Abstract: An integrally threaded brass insert is molded into the discharge conduit of a condensate pan such that a steel drainage pipe can be threadably engaged to the insert without causing damage to the plastic discharge conduit. Bonding between the insert and the surrounding conduit is enhanced by providing a knurled surface on the outer periphery of the insert.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: July 14, 1987
    Assignee: Carrier Corporation
    Inventors: Charles A. Mitchell, Thaddeus J. Wawro, Charles E. Whipple, William E. Wright, Sr.
  • Pulsed direct current arc welding
    Patent number: 4421972
    Abstract: A method of arc welding is disclosed. Specifically, a method of pulsed direct current (DC) arc welding is disclosed wherein special pulses of positive direct current are used to weld together work pieces. The special DC pulses are capable of dissipating difficult to reduce oxides which may be present on the surfaces of the work pieces without using a flux. The method is especially useful for fluxless arc welding of aluminum, particularly thin wall aluminum tubing used in making heat exchangers for air conditioning systems.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: December 20, 1983
    Assignee: Carrier Corporation
    Inventors: John R. Duncan, Roderick G. Rohrberg, Ross A. Moyer, William E. Wright, Sr.