Patents by Inventor Edward A. Irelan

Edward A. Irelan 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: 4200978
    Abstract: A grass trimmer includes a housing having a lower base wall from which extends a hub member of a predetermined height coupled to a motor encased in the housing, which motor drives the hub member rotatably. A cutting line element is attached to the hub member. A rim extends outwardly from the housing about the perimeter of the base wall. A first rim portion is of a height greater than the hub member and includes first and second spaced mounting ears extending therefrom toward the hub member. A protective shield designed for mounting on the housing in spaced relation from the base wall, is planar and of a similar shape to the base wall. The shield includes first and second tab and shoulder assemblies located for cooperation with the ears on the rim portion of the housing. Joining the last mentioned assemblies and respective ears attaches the shield to the trimmer housing.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: May 6, 1980
    Assignee: McGraw-Edison Company
    Inventors: Edward A. Irelan, Robert L. Bartlett, John W. Walch
  • Patent number: 3996729
    Abstract: This invention teaches a dolly device and its separable connection to a normally portable hand-held electric power grass trimmer for converting same for standup operation. The dolly has a base plate with spaced upstanding arms supporting at the upper ends inwardly extended tabs and these tabs fit within recesses in the opposite side walls of the tool housing, and a lock mounted on the dolly base plate can be easily moved against the bias of a spring to fit into a recess in the rear wall of the tool housing.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: December 14, 1976
    Assignee: McGraw-Edison Company
    Inventors: Edward A. Irelan, Larry D. Annis
  • Patent number: 3959878
    Abstract: This invention teaches a convertible portable electric tool having a common power housing and different operating tool output pieces which can be releasably secured to said power housing without the need of any tools. Each of the tool output pieces has a stationary element and a movable element supported by the stationary element. The power housing has an exposed drive element which can cooperate with and drive the movable element when the statonary element is properly positioned relative to the housing. The stationary element in turn is sized to cooperate with the housing to cover the exposed drive element and be accurately positioned and held in place against the housing. Flexible fingers cantilevered integrally from the housing have free end flexture parallel to the stationary element, and further have projections on the finger ends that interlock with the positioned stationary element to hold it operatively in place relative to the housing.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: June 1, 1976
    Assignee: McGraw-Edison Company
    Inventors: Edward A. Irelan, David W. Dorheim, William Frederick Robotham
  • Patent number: D249771
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: October 3, 1978
    Assignee: McGraw-Edison Company
    Inventor: Edward A. Irelan
  • Patent number: D256767
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: September 9, 1980
    Assignee: McGraw-Edison Company
    Inventor: Edward A. Irelan
  • Patent number: D256768
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: September 9, 1980
    Assignee: McGraw-Edison Company
    Inventor: Edward A. Irelan
  • Patent number: D256769
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: September 9, 1980
    Assignee: McGraw-Edison Company
    Inventor: Edward A. Irelan
  • Patent number: D258040
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: January 27, 1981
    Inventor: Edward A. Irelan
  • Patent number: D261519
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: October 27, 1981
    Assignee: Benchmark Tool Company
    Inventor: Edward A. Irelan
  • Patent number: D264849
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: June 8, 1982
    Assignee: Benchmark Tool Company
    Inventor: Edward A. Irelan
  • Patent number: D275014
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: August 7, 1984
    Assignee: Benchmark Tool Company
    Inventors: Max K. Haenel, Edward A. Irelan, John G. Legler
  • Patent number: D276616
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: December 4, 1984
    Assignee: Shopsmith, Inc.
    Inventors: John G. Legler, Edward A. Irelan, Michael J. Duwell
  • Patent number: D281328
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: November 12, 1985
    Assignee: Shopsmith, Inc.
    Inventors: Edward A. Irelan, Harold E. Folkerth, John G. Legler, Garry W. Woods