Patents by Inventor Robert F. McCain

Robert F. McCain 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: 5339792
    Abstract: A sighting apparatus includes a sight housing mounted to a bow riser of an associated archery bow, with a trigger lever mounted therebelow, wherein the trigger lever is operative to effect vertical movement of a cross hair relative to the second mirror plate that is arranged in a fixed orientation cooperative with the first mirror plate, wherein the first mirror plate is arranged to receive incoming light from a target. An opening through the housing is adjacent the second mirror plate. With the target at an incidental distance from the first mirror, the trigger is operative to simultaneously effect vertical displacement of the horizontal cross hair and align the image of the target of the second mirror with the target in the open view. Subsequent alignment of the cross hairs to the target by maneuvering the bow effects sighting relative to the target at the given distance.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: August 23, 1994
    Inventor: Robert F. McCain