Patents by Inventor Robert J. Entwistle

Robert J. Entwistle 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: 4223454
    Abstract: A marksmanship training system is disclosed as comprising a viewing screen pon which a scenic picture having a predetermined target included therein is projected by a combination motion picture projector and film. A plurality of simulated rifles shoot laser light shots of different colors, respectively, at the target located within the image of said projected motion picture scene. A like plurality of receiver channels respond to the colors of said laser shots respectively, and as a result of being properly synchronized with said projector and film, determine and indicate the number of target "hits" for any given number of shots. A color television camera and video tape recorder monitor training exercises, and a video tape player permits the playback thereof for additional training purposes.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: September 23, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Windell N. Mohon, Frank J. Oharek, Robert J. Entwistle, David T. Long, John C. McKechnie, Don D. Doty
  • Patent number: 4150885
    Abstract: A stabilized viewing system is disclosed as having a telescope for viewing n object by an observer when the object is remotely located from the observer, a camera for timely photographing a succession of pictures of the object on a film that is processed immediately prior to exposure of the object of the film by a processing fluid which causes a positive image to be produced on the film after exposure of the object on the film which may be viewed by the observer immediately thereafter, a unique movable linkage-type servomechanism connected between the telescope and the camera for enabling one or the other to be selected as desired by the observer, in order that he may either view the object directly or the filmed image thereof, and a magnifying eyepiece disposed in such manner with respect to the telescope and the film of the camera that either one or the other may be observed in magnified form.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Denis R. Breglia, Robert J. Entwistle, Frank J. Oharek, Gottfried R. Rosendahl
  • Patent number: 3964178
    Abstract: A universal weapon fire simulation system in which frames of motion picture ilm are employed to produce simultaneously from one set of frames a background area including a target and, from another set of frames, an infrared lead aim spot. The sets of film frames are coordinated in projection in a desired degree of non-registration between the lead spot and the target to provide a lead in the infrared spot representative of the correct lead and elevation of a properly aimed weapon. The invention also includes a receiver circuit comprising a quadrant arrangement of infrared detectors for sensing the infrared lead aim spot when the weapon is correctly aimed, and amplifier, comparator, logic and hit indicator means for indicating a miss, hit, or a specific area of near miss when the weapon is triggered to activate the sensor circuit.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: June 22, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert H. Marshall, Frank J. Oharek, John H. Dillard, Robert J. Entwistle