Patents by Inventor Alfred Parker

Alfred Parker 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: 5735172
    Abstract: A swashplate machine comprises a casing (1) provided with end members (2, 3) and a rotatable shaft (4). The shaft (4) drives a swashplate (5) through an interconnecting member (6) comprising an off-set sleeve (7) that is keyed to the shaft (4) and a non-rotating ball portion (8). The interconnecting member (6) is further supported by a pair of end cones (15). A baffle (9) fixed to the casing (1) intersects the swashplate (5) and an oscillatable pivotable slotted member is provided at the intersection. The arrangement of the swashplate machine being such that at least one of the end cones (15) is slidably mounted in the casing (1) on a guide (18) such that during operation of the swashplate machine limited axial movement of at least the one cone (15) is possible whilst rotational movement of the cone (15) is prevented by the guide (18).
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: April 7, 1998
    Inventor: Alfred Parker
  • Patent number: 3942384
    Abstract: A Swashplate Machine having a non rotatable swash plate mounted so that rotation of a shaft causes oscillation of the swash plate and one or more baffles mounted in slots in the swash plate dividing the swash plate into portions which oscillate to cause the volume of chambers to vary.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: March 9, 1976
    Assignee: Parker Swashplate Limited
    Inventor: Alfred Parker