Patents by Inventor Daniel R. Shepherd

Daniel R. Shepherd 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: 7836626
    Abstract: An improved telescopic gun sight includes a telescopic gun sight at least including an adjustable lens configuration for adjustably magnifying an external object to form an object image, an inverting tube for inverting the object image, an ocular lens array for presenting the object image for viewing, a primary reticule including sighting insignia imprinted thereon and a secondary reticule being movable both horizontally and vertically in the image plane. The secondary reticule includes a generally horizontal windage correction scale operative to provide instant windage correction target alignment. It includes instant windage correction target alignment values positioned at point-specific spaced-apart locations with specific instant windage correction target alignment values corresponding to selected distance amounts calculated for a selected bullet type and weight.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: November 23, 2010
    Inventor: Daniel R. Shepherd
  • Publication number: 20080202011
    Abstract: A improved telescopic gun sight includes a telescopic gun sight at least including an adjustable lens configuration for adjustably magnifying an external object to form an object image, an inverting tube for inverting the object image, an ocular lens array for presenting the object image for viewing, a primary reticule including sighting insignia imprinted thereon and a secondary reticule being movable both horizontally and vertically in the image plane. The secondary reticule includes a generally horizontal windage correction scale operative to provide instant windage correction target alignment. It includes instant windage correction target alignment values positioned at point-specific spaced-apart locations with specific instant windage correction target alignment values corresponding to selected distance amounts calculated for a selected bullet type and weight.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Inventor: Daniel R. Shepherd
  • Patent number: 4584776
    Abstract: A telescopic sight including primary and secondary reticules separately disposed within separate image planes formed at respective opposite ends of an inverting tube. The secondary reticule is selectively retractable between a first position lying within the field of view of the scope and a second position lying outside the field of view of the scope. A pair of control knobs provide independent adjustability to relatively position the separate reticules with respect to the image viewed through the scope. The secondary reticule is mounted for selective presentation of one of a plurality of reticule surfaces carried by the reticule, with each reticule surface bearing engraved indicia for determining target range and for compensating for bullet drop.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: April 29, 1986
    Inventor: Daniel R. Shepherd
  • Patent number: 4403421
    Abstract: A telescopic sight including primary and secondary reticules separately disposed within separate image planes formed at respective opposite ends of an inverting tube. The secondary reticule is selectively retractable between a first position lying within the field of view of the scope and a second position lying outside the field of view of the scope. A pair of control knobs provide independent adjustability to relatively position the separate reticules with respect to the image viewed through the scope. The secondary reticule is mounted for selective presentation of one of a plurality of reticule surfaces carried by the reticule, with each reticule surface bearing engraved indicia for determining target range and for compensating for bullet drop.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: September 13, 1983
    Inventor: Daniel R. Shepherd