Patents by Inventor Bernard A. Erickson

Bernard A. Erickson 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: 5358447
    Abstract: A new and improved bowling ramp useful for acceleration and directional control of a bowling ball by handicapped, disabled, weak and infirm persons of all ages includes a sloping guide track having a lower end adapted to rest on a bowling alley surface and an upper end having a horizontal segment adapted to support a bowling ball at rest. Portable legs are pivotally interconnected at their upper ends to support the upper end of the guide track and a lower end of each leg is adapted to engage the bowling surface in non-slipping engagement to provide lateral stability. The sloping guide track includes a frictional web surface on the downwardly sloping rails of the guide track for causing the bowling ball to spin and provide gyroscopic stability for the bowling ball as it is discharged down the ramp.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: October 25, 1994
    Inventor: Bernard A. Erickson
  • Patent number: D249750
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: October 3, 1978
    Assignee: Groom Industries, Inc.
    Inventor: Bernard A. Erickson
  • Patent number: D262671
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: January 19, 1982
    Assignee: Groom Industries, Inc.
    Inventor: Bernard A. Erickson
  • Patent number: D270105
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: August 9, 1983
    Assignee: Groom Industries, Inc.
    Inventor: Bernard A. Erickson
  • Patent number: D372128
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: July 30, 1996
    Assignee: Groom Industries, Inc.
    Inventors: Franklin C. Beach, Bernard A. Erickson