Patents by Inventor Harwell B. Thompson

Harwell B. Thompson 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: 4462697
    Abstract: A plastic strap and bezel are molded from plastic material to provide a bezel section and integrated flexible strap sections. The bazel is adapted to retain a bell-shaped crystal of transparent plastic with a central viewing portion. The crystal has a depending wall portion arranged to receive a caseback of metal or plastic with a water-resistant seal. The crystal wall portion includes an integral pendant for the stem or push button, and has ears or lugs, which are molded into the bezel or, which snap into bezel recesses.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: July 31, 1984
    Assignee: Timex Corporation
    Inventor: Harwell B. Thompson
  • Patent number: 4403870
    Abstract: A water-resistant shaped case construction for a wristwatch with a bell-shaped molded crystal with a central viewing portion and a depending wall forming part of the case including an integral pendant for the stem, a stainless steel bezel shell clamping a sealing gasket between the rim of the crystal wall and the caseback by a snap-fit attachment between the bezel and the case back. The improvements include a shoulder on the crystal wall cooperating with the rim of the caseback to control the clamping action on the gasket.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: September 13, 1983
    Assignee: Timex Corporation
    Inventors: Harwell B. Thompson, Paul Wuthrich
  • Patent number: 4136515
    Abstract: A sealed watch case comprises an assembly wherein a gasket bead is applied to predetermined locations on the watch case and caseback prior to assembly. The gasket bead consists of a plastic or elastomeric material generally polymeric in nature which is applied in the form of a gasket bead to the crystal seat in the watch case, the caseback seat in the watch case or either predetermined locations in the caseback. The bead provides a fixed, formed in place and flexible gasket arrangement between the components of the watch case assembly to prevent entry of foreign matter into the watch case. The bead becomes an integral part of the watch case assembly, yet disassembly does not impair the effectiveness of the bead upon subsequent reassembly.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: January 30, 1979
    Assignee: Timex Corporation
    Inventors: Harwell B. Thompson, William H. Young
  • Patent number: 4067186
    Abstract: In a timepiece, a supplementary watch crystal is mounted over the regular watch crystal so as to be manually rotatable with respect to the regular watch crystal. The supplementary watch crystal may then be provided with special marking indicia or constructed of special material to achieve special visual effects when used in conjunction with other devices in a timepiece such as a rotatable bezel ring or rotatable "seconds" disc with markings thereon. Modified forms of the invention include a bezel extension formed on the supplementary crystal, or a second supplementary crystal mounted on the first supplementary crystal. The supplementary crystal is preferably mounted by an inner circumferential lip on the supplementary crystal disposed in an outer circumferential groove on the regular watch crystal.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: January 10, 1978
    Assignee: Timex Corporation
    Inventors: Raymond J. Grohoski, Harwell B. Thompson
  • Patent number: D242694
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: December 14, 1976
    Assignee: Timex Corporation
    Inventors: Harwell B. Thompson, Milton B. Sheffield
  • Patent number: D243076
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: January 18, 1977
    Assignee: Timex Corporation
    Inventors: Harwell B. Thompson, Milton B. Sheffield, Raymond J. Grohoski