Patents by Inventor Jack L. Crain

Jack L. Crain 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: 5980809
    Abstract: A method and apparatus for molding a plastic washing machine basket includes a fixed mold core formed with teardrop-shaped projections spaced about a periphery thereof, cavity sidewall members spaced about the periphery of the mold core which carry core pins having tips adapted to abut teardrop-shaped projections on the mold core and a cavity cover member spaced about an end of the mold core and abutting the cavity sidewall members so as to define a cavity between the mold core and both the cavity cover member and the sidewall members.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 9, 1999
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, P. Randell Gray, Melvin D. Colclasure
  • Patent number: 5881909
    Abstract: A method and apparatus for molding a plastic washing machine basket includes a fixed mold core formed with teardrop-shaped projections spaced about a periphery thereof, cavity sidewall members spaced about the periphery of the mold core which carry core pins having tips adapted to abut teardrop-shaped projections on the mold core and a cavity cover member spaced about an end of the mold core and abutting the cavity sidewall members so as to define a cavity between the mold core and both the cavity cover member and the sidewall members.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: March 16, 1999
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, P. Randell Gray, Melvin D. Colclasure
  • Patent number: 5737965
    Abstract: A transmission is provided for converting rotary input into an oscillating output. The transmission includes a housing with an input shaft and an output shaft, and a series of gears interconnecting the shafts. The gears include a pair of rack gears on opposite sides of an output pinion mounted on the output shaft. The rack gears are held in meshing engagement with the output pinion by a carrier which is mounted upon a floating bushing on the output shaft. The floating bushing allows the rack gears and rack carrier to move side-to-side relative to the output shaft, thereby equalizing the load on the rack gears and preventing binding between the teeth of the rack gears and the teeth of the output pinion.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: April 14, 1998
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, James C. Jones
  • Patent number: 5638719
    Abstract: A transmission is provided for converting rotary input into an oscillating output. The transmission includes a housing with an input shaft and an output shaft, and a series of gears interconnecting the shafts. The gears include a pair of rack gears on opposite sides of an output pinion mounted on the output shaft. The rack gears are held in meshing engagement with the output pinion by a carrier which is mounted upon a floating bushing on the output shaft. The floating bushing allows the rack gears and rack carrier to move side-to-side relative to the output shaft, thereby equalizing the load on the rack gears and preventing binding between the teeth of the rack gears and the teeth of the output pinion.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 17, 1997
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, J. C. Jones