Patents by Inventor David K. McClure

David K. McClure 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: 4507831
    Abstract: A spring clip shaft connection wherein a shaft includes a transverse hole spaced inwardly from one end of the shaft, a generally U-shaped body having a leg formed with longitudinally extending proximate and distal leg portions laterally offset from each other by an intermediate leg portion, and an arm extending from the body longitudinally of the leg, the leg being insertable through the hole for location of the intermediate leg portion in the hole with the distal and proximate leg portions on opposite sides of the shaft, and the arm being resiliently snap engaged into a recess in the leg.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: April 2, 1985
    Assignee: Marathon Manufacturing Company
    Inventor: David K. McClure
  • Patent number: 4488588
    Abstract: A cord lock for mounting in the headrail channel of a venetian blind including a hollow structure seated on the bottom wall of the channel and having a lower opening for communication through the channel bottom wall, front and back shoulders externally on the hollow structure engaging upper regions of the headrail channel to retain the hollow structure in position in the channel, a cord guide in the hollow of said structure, and a jamming element movable in the hollow structure upwardly toward and downwardly away from the cord guide for jamming and releasing a lift cord between said guide and jamming element.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: December 18, 1984
    Assignee: Marathon Manufacturing Company
    Inventor: David K. McClure
  • Patent number: 4463791
    Abstract: A cord lock for up to eight lift cords including an openwork, grid-like structure adapted to seat on the bottom wall of a headrail channel over a bottom wall opening; the grid-like structure including intersecting longitudinal and transverse members; upwardly facing formations for retaining engagement beneath inturned lips of the channel; a depending formation for restraining engagement through the channel bottom wall opening; generally vertically extending way means formed in the longitudinal members, and a transversely extending jamming element freely shiftable up and down in the way means into and out of cord jamming relation with an adjacent cross member.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: August 7, 1984
    Assignee: Marathon Manufacturing Company
    Inventor: David K. McClure