Patents by Inventor Stephen A. Jarvis

Stephen A. Jarvis 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: 5315913
    Abstract: A Gatling-type gun mechanism has a stationary housing having a camming channel and at least one loading/unloading port. A rotor is mounted inside the housing and can be rotated about a longitudinal axis; the rotor carries a plurality of gun barrels, each fixed to the rotor with a respective barrel axis substantially parallel to the rotor longitudinal axis; a like number of stud assemblies, each having a respective axis aligned with the axis of an associated gun barrel; and a like number of cartridge chambers, each interacting with the housing camming channel, during each rotation of said rotor, for reciprocal motion between a rearward location substantially coaxial about the associated stud assembly and a forward location substantially in abutment with the associated gun barrel and enclosing a volume into which a round of ammunition can be placed and removed by radial movement through the loading/unloading port.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 31, 1994
    Assignee: General Electric Company
    Inventors: Glenn E. Rossier, Steven R. Duke, Edward A. Proulx, Stephen A. Jarvis
  • Patent number: 4982650
    Abstract: An ammunition handling system is provided with a magazine consisting of a plurality of modular, highly portable magazine packs which are readily installed in a mechanized support frame. The magazine packs contain separate ammunition conveyors commonly driven from the frame. Guides are positioned to effect direct transfers of ammunition rounds between conveyors of adjacent ammunition packs and thus to establish linear linkless ammunition round movement along a serpentine path leading to a magazine exit and ultimately to a rapid-fire gun. Rearming the gun simply involves replacing empty magazine packs with magazine packs pre-loaded with live ammunition rounds.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: January 8, 1991
    Assignee: General Electric Company
    Inventors: Joseph F. Bender-Zanoni, Howard T. Cook, Jr., Thomas W. Cozzy, Stephen A. Jarvis
  • Patent number: 4659199
    Abstract: Apparatus for marking the edge of a film particularly for identifying head and tail sections of film strips joined by a splice comprising a holder with a channel-like film guide in which the film may be inserted for longitudinal movement and a hole for a pen-type applicator positioned so that as the film is moved lengthwise through the guide one edge of the film is wiped across the tip of the applicator so that a continuous ink or dye mark is applied to the film edge which appears as a ring on the side of the film when it is wound onto a reel.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: April 21, 1987
    Inventors: Richard J. Jarvis, Stephen A. Jarvis
  • Patent number: 4342253
    Abstract: A feature of this invention is the provision of a Gatling type gun having a reduced diameter main cam provided by a rear dwell increment of angular rotation of the rotor which in turn is provided by a feed system wherein the bolt comes forward out of rear dwell after the round is placed upon the face of the gun bolt but before the round is centered on the face of the gun bolt. This is accomplished by permitting controlled longitudinal motion of the round while it is still being provided with transverse motion by the sprocket.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: August 3, 1982
    Assignee: General Electric Company
    Inventors: Robert G. Kirkpatrick, Stephen A. Jarvis
  • Patent number: 4146848
    Abstract: Frequency stabilization of a beam type device is disclosed that is particry well suited for avoiding cavity phase shift problems. A beam generator provides a molecular or atomic beam that is directed through a pair of spaced and separate interaction regions to a detector. The two interaction regions, such as cavities, provide independent regions into which different signals are injected with the injected signals being derived from an oscillator such as a crystal oscillator. The signal coupled to the interaction regions may be varied according to a general equation. The first signal may also be coupled into one of the interaction regions at a frequency substantially the same as the resonance frequency of the particles in the beam directed through the cavity, while the signal coupled to the other cavity may be caused to vary above and below the resonance frequency.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: March 27, 1979
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Helmut W. Hellwig, Stephen Jarvis, Jr., David J. Wineland
  • Patent number: D577986
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: October 7, 2008
    Inventor: Stephen Jarvis