Patents by Inventor Thomas R. Leach

Thomas R. Leach 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: 5833307
    Abstract: A rocker conversion unit for a molded, stackable lawn-type chair. The rocker conversion unit has an upwardly curved channel shaped rocker having elongated base means adapted to provide the bottom of said rocker and to contact and rock on lawn or other supporting surface, first and second side means integrally connected to opposite edges of said base means and extending upwardly therefrom along substantially the full length thereof. The channel has a substantially uniform side-to-side width and base-to-shoulder height throughout its length and foot retainers to engage the lateral foot segment of a mold lawn chair in a tight frictional fit that locks the chair leg into the channel and stabilizes the rocker on the chair leg.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: November 10, 1998
    Assignee: Thomas R. Leach
    Inventors: Thomas R. Leach, Mark S. Williams
  • Patent number: 5660431
    Abstract: A rocker conversion unit for affixing rockers to an ordinary molded plastic lawn chair, wherein the unit has an upwardly curved channel shaped rocker the sides of which have an inwardly extending lip providing a first shoulder downwardly facing and adapted to provide a stop for preventing withdrawal of structure upwardly from the channel, a block slidable within the channel and having a second and upwardly facing shoulder extending along each side edge thereof and adapted to engage the first shoulder and be stopped in its upward movement thereby, the block having a height dimension from its bottom to its second shoulder which is less than the base-to-shoulder height dimension of the channel to provide a space in which a lateral foot segment of a molded lawn chair leg can be positioned, and wherein the block further has a manually operable pressure portion adapted to simultaneously force a lower portion of the block downwardly against the foot segment and to force the second shoulder upwardly against the first
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: August 26, 1997
    Inventor: Thomas R. Leach