Patents by Inventor David Sevington

David Sevington 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: 4838571
    Abstract: A ski has at least two downwardly-extending projections (10, 16, 16B), at least one on each side of the longitudinal axis of the ski, these being integral with the remainder of the ski separate members, in the form of an inverted channel member (7), the base (7A) of the channel, on the upper side of the channel member (7), lying above and being secured to the tail (1) of the ski, which extends between the side walls (7B) of the channel member (7). When the ski is placed on a flat horizontal surface, with the running face (3) of the ski lowermost, the tips (10A, 16A) of the projections (10, 16, 16B), at the lowermost extremities of the projections, will be separated only by an air gap from the surface.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: June 13, 1989
    Inventor: David Sevington
  • Patent number: 4752082
    Abstract: A ski has at least two downwardly-extending projections (10, 16, 16B), at least one on each side of the longitudinal axis of the ski, these being integral with the remainder of the ski or provided on one or more separate members, for example on an inverted channel member (7), the base (7A) of the channel, on the upper side of the channel member (7), lying above and being secured to the tail (1) of the ski, which extends between the side walls (7B) of the channel member (7). When the ski is placed on a flat horizontal surface, with the running face (3) of the ski lowermost, the tips (10A, 16A) of the projections (10, 16, 16B), at the lowermost extremities of the projections, will be separated only by an air gap from the surface.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: June 21, 1988
    Inventor: David Sevington