Patents by Inventor Roger D. Wieland

Roger D. Wieland 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: 5731556
    Abstract: A muffler for use with a pneumatic motor the muffler including a housing having a first longitudinal wall, a second longitudinal wall, a first lateral wall, a second lateral wall, and a front wall where the first and second longitudinal walls include an exhaust port and the front, longitudinal and lateral walls define a muffler chamber. The muffler also includes first and second baffle located in said muffler chamber. The first and second baffles include a first side and a second side, and each baffle extends away from a first lateral wall substantially parallel to the longitudinal walls and terminates in a baffle edge. The first and second baffles dividing the muffler chamber into at least two exhaust chambers, the baffle edges define a crossover opening for flowing an exhausted fluid to an adjacent exhaust chamber. A sound absorbing media along said first and second sides of said first and second baffles.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 24, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Richard K. Gardner, Joseph W. Sullivan, Gerald M. Distel, Roger D. Wieland
  • Patent number: 5647737
    Abstract: A reciprocating pump, comprising a reciprocating motor having a housing body which includes an open first end and a base at the first end, the base substantially closes the first end of the motor housing. The motor also includes a reciprocating member movable by the motor. The member has an end and is adapted to be movable through a housing body chamber. The reciprocating pump includes a pump outlet having a first end, a second end, a pumped fluid outlet port between the ends, and a passageway joining said ends and adapted to receive the end of the reciprocating member. The passageway has a minimum width and the outlet body is connected to the pump base. The reciprocating pump also includes a pump member adapted to be flow connected to the second end of the outlet body.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: July 15, 1997
    Assignee: Ingersoll-Rand Company
    Inventors: Richard K. Gardner, Roger D. Wieland, Mark D. Jermeay
  • Patent number: D380217
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: June 24, 1997
    Assignee: Ingersoll-Rand Company
    Inventors: Mark D. Jermeay, Richard K. Gardner, Gerald E. Smith, Roger D. Wieland