Patents Represented by Attorney Arsen Tashjian
  • Patent number: 4654469
    Abstract: A bellows assembly to house and shield an electrical cable, and a connector attached thereto, from the effects of an electromagnetic pulse. The assembly includes: an expansible and contractable cylindrically shaped, flexible, bellows-like component made of magnetic material, having open ends, and with convolutions along its surface perpendicular to the axis of its length; a rigid transition cover made of magnetic material, having two apertures shaped to permit the passage of the electrical cable and connector attached thereto, positioned at one end of the bellows-like component; and, a spring-type clamp to attach the transition cover, at one of its openings, to one end of the bellows-like component. The other end of the bellows-like component is grounded.
    Type: Grant
    Filed: March 25, 1970
    Date of Patent: March 31, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Gaylord I. Bowman, Frank J. DePhillipo
  • Patent number: 4370854
    Abstract: A valve assembly for controlling the flow of a liquid fuel. The assembly includes a spring-biased movable valve member made of tungsten carbide, a captured sleeve member also made of tungsten carbide, and a readily accessible filtering screen member disposed in the fuel duct inlet of the assembly. In assembled form, the housing comprises two releasably connected constituent portions which integrate to form a one-piece unit. The structure of the unit, and the extreme hardness of the tungsten carbide material of which the valve member and the sleeve member are made, prevent corrosion and/or galling (such as by sand particles) and/or other normally-expected wear of the valve assembly, and thereby result in continued accuracy and reliability of the valve assembly, while maintaining simplicity and compactness of it.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: February 1, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Raymond L. Williams
  • Patent number: 4359199
    Abstract: A bogie type landing gear especially suitable for providing soft landing capabilities for short take-off and landing (STOL) aircraft wherein fore and aft wheels are mounted on opposite ends of a bogie which is pivotally attached to the lower end of a vertical shock strut. In one embodiment, a torque link pivotally connects the aft end of the bogie to the shock strut such that, under normal landing conditions, the front wheel will touch down first thereby reducing and directing the landing forces to minimize shock to the aircraft. The aft mounted torque links also act as a tension member during the initial landing stroke. In another embodiment, a damper acts as a tension stop for a soft landing arrangement as well as to dampen bogie motion over bumps with the torque links being separate.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: November 16, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Louis T. Kramer, Franklin H. Butler, Anthony V. Camino
  • Patent number: 4343593
    Abstract: A turbofan engine fan blade made of composite material, and a method of making the fan, are taught. The fan blade essentially comprises an airfoil section having a root end and made of a plurality of bonded plies of composite material which are splayed and which are in a staggered condition at the root end; a two-piece platform section made of titanium or of aluminum, with one piece of the platform on each side of the airfoil section; and a steel outsert section which holds and secures the platform section to the airfoil section, with the outsert section having a triangular shaped cavity located at the root end of the airfoil section, between the splayed and staggered plies of the airfoil section. Among other advantages, the cavity eliminates the "insert plies" (or wedge) used in the prior art and the inherent disadvantages associated with such use.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: August 10, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: David J. Harris
  • Patent number: 4343448
    Abstract: A continuous ribbon parachute construction including a series of substantially triangular gores having a plurality of parallel arcuate horizontal ribbons which are joined to make up a circle whose center is on the axial center of the parachute. Each side edge of each gore includes a full radial strip therealong which, if extended upward, would intersect at the center of the chute canopy. A series of mini-radials extending part way up the gore from the base are positioned between the full radials. A fixture is provided for assembling the parachute by placing the horizontals across the fixture and the full radials and mini-radials along the fixture for attachment in their proper relationship to each other.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: August 10, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Donald W. Johnson
  • Patent number: 4340197
    Abstract: A decoy missile having a high moment of inertia with a corresponding reduction of the natural oscillation frequency for simulating reentry of a ballistic nose cone into the earth's atmosphere. High density ballast material disposed in the forward section is in proportional relationship to similar ballast material in the base section such that the distance between the center of pressure and the center of gravity is equal to one-half the base diameter.
    Type: Grant
    Filed: February 15, 1966
    Date of Patent: July 20, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: George S. Campbell
  • Patent number: 4338711
    Abstract: A brake adjuster tool including a set of dies and a pneumatic press for assembly and disassembly of a main landing gear brake adjuster. The assembly operation requires only two steps saving considerable time while presetting the adjuster pin automatically on assembly. The brake adjuster tool includes a pneumatic cylinder or diaphragm, control valve and air regulator and provides a mechanical pressure of up to 400 pounds with a linear travel of 4 inches which is needed to perform the operation.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: July 13, 1982
    Inventor: John T. Wright
  • Patent number: 4331391
    Abstract: Wide angle optical objectives for use in aerial mapping cameras to provide improved resolving power and improved contrast rendition derived from the pattern of glass types and lens data employed. The outermost elements are weakly positive menisci to produce an initial convergence of rays before the mating negative elements are introduced thereby keeping the physical length of the system within modest proportions. Strong negative elements lying outside of centrally located strong positive elements provide favorable illumination over a wide angle field. Wafer elements near the center of the system serve to minimize chromatic astigmatism and to reduce the actual sagittal depth of the aspherics. Wafers of high index flint glass are located next to the central stop in order to obtain good chromatic spherical correction in the tangential rays over the field.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: May 25, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: James G. Baker
  • Patent number: 4327884
    Abstract: An unconventional advanced air-to-surface weapon of monowing configuration, and having a symmetrical, high lift fuselage of lenticular (i.e., biconvex or oblate) cross section, with a width-to-thickness fineness of approximately 2.5. The longitudinal profile is modified Sears-Haack in two dimensions, truncated at the base for a rocket nozzle. The weapon comprises a nose portion modular forebody, a weapon payload portion modular midbody, and an aft boattail modular portion which are combined into one unit that is selectively separable into its modular components when used. A variation of this weapon is also taught which features a semi-lenticular fuselage cross section (i.e., one flat side) and a width-to-thickness fineness of approximately 2.1.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: May 4, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: William S. Lawhorn
  • Patent number: 4319809
    Abstract: An objective lens system of the Double Gauss type wherein negative lens elements are symmetrically disposed on both sides adjacent the stop, each negative element being a cemented doublet comprising a double convex negative and a positive lens element. A cemented doublet positive lens component is next positioned at the outside of each of the negative elements and a single positive lens is positioned at the outside of each of the inner positive lens components.
    Type: Grant
    Filed: April 15, 1980
    Date of Patent: March 16, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Irving R. Abel
  • Patent number: 4310121
    Abstract: An actuation assembly for selectively varying the throat area of a convergent-divergent exhaust nozzle of a gas turbine engine and simultaneously achieving predetermined fixed ratios of throat area versus exit area. The assembly structurally comprises a plurality of constituent components (including a linear actuator member on the port side, and another on the starboard side, of the nozzle in parallel spaced-apart relationship with the centerline common to the engine and to the exhaust nozzle) that interact and cooperate to pivot the convergent flaps to reduce the throat area while simultaneously moving the divergent flaps inwardly, or to pivot the convergent flaps to increase the throat area while simultaneously moving the divergent flaps outwardly, as desired, thereby permitting the selective varying of the throat area while attaining a predetermined fixed ratio of the throat area to the exit area of the convergent-divergent exhaust nozzle.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: January 12, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Edward M. Basinski, Jr.
  • Patent number: 4302796
    Abstract: A laser beam pointing system, adapted for use in an aircraft. A preferred embodiment of the system includes: a laser beam source, within the aircraft, emitting a laser beam; and, a plurality of laser beam pointing devices in optical alignment with the laser beam. Each pointing device includes: a cylindrical shaped rotatable housing with a window, and either one or two rotatable optical means in optical alignment with the laser beam. One preferred arrangement is the mounting of one pointing device on the upper external surface of the aircraft fuselage, and of another pointing device on the lower external surface of the aircraft fuselage in a location oppositely disposed to and below the other pointing device, with the two pointing devices being in parallel relationship to each other, and with the pointing devices mounted flush with the aerodynamically configurated external surfaces of the fuselage.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: November 24, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Robert G. Gustavson, Darold B. Cummings
  • Patent number: 4299166
    Abstract: A dispenser retains a hermetically sealed metal canister which holds a pyrophoric fluid, radar chaff, other electronic countermeasure materials or a combination thereof for ejection from an aircraft. Several openings in the canister are sealed with Pyrofuze foil material closures and a Pyrofuze wire braid is interconnected between each of the closures and the canister in close proximity to a Pyrofuze delay braid having one end thereof fixedly attached to the canister. A safety tab on one corner of the canister extends downward between the delay braid and the wire braid to prevent cross ignition until the canister is fully ejected from the dispenser. When a gas producing squib on the dispenser is fired, the Pyrofuze delay braid is ignited by the flame front from the squib and the canister is forced from the dispenser causing the safety tab to be automatically removed from the canister.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: November 10, 1981
    Assignee: The United States of American as represented by the Secretary of the Air Force
    Inventors: Donald J. Carignan, William Lewis
  • Patent number: 4299158
    Abstract: The device is for use with an ammunition storage drum for a modern multi-barrel high rate-of-fire machine gun (i.e., "Gatling" type gun) system, in which unfired ammunition rounds are transported from the drum to the gun, and the cases of the spent ammunition are returned from the gun to the drum. When two generally, oppositely positioned spent ammunition sensors within the drum simultaneously detect spent ammunition in the drum, a signal is sent to the gun control unit in time to cut off power. The device prevents spent ammunition from being chambered in the gun, and as a result also permits higher rates-of-fire by the gun.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: November 10, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Anthony J. Aloi, Robert J. Fritz
  • Patent number: 4290568
    Abstract: The device retains the ejection seat arm/dearm lever in safe position to allow the seat to be tilted safely for required maintenance and repair work. A bolt positioned through a clearance hole in an inverted U-shaped base member engages threads in the ejection seat structure. An upstanding brace extends upward from one end of the base member at an angle to abut the seat ejection arming lever to physically block and prevent its movement into the armed position. The bolt is retained in the base member by a cotter pin through the body of the bolt under the head to allow turning while preventing separation from the base.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: September 22, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Philip K. Vollmoeller
  • Patent number: 4290302
    Abstract: A gauge for use with a test specimen that is made of a preselected ablative material to be tested, and that is in a high temperature gaseous flow (i.e., a hot environment) which is capable of ablating the test specimen, and which also is capable of inducing, and of exerting on the test specimen, a resultant shear force (i.e., a shear force vector) that comprises constituent axial and lateral forces. The test specimen is bonded on the mounting surface of a block member (of the gauge) that is positioned on bearings, within a housing, for movement in axial and lateral directions. A plurality of force sensors are positioned around the perimeter of the block member, and the constituent axial and lateral forces of the resultant shear force that is acting on the test specimen are transmitted to these sensors. The components of the gauge are protected from shock by their structure and positional relationship, and are protected from overheating by the water-cooling of the housing.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: September 22, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Clarence J. Harris
  • Patent number: 4290756
    Abstract: A twist-lock pin for improving the retention and resistance characteristics of plastic dental restorative materials and a drill for drilling a tapered hole into sound tooth structure whereupon the geometrically similar but oversized left-hand threaded pin is inserted. Slight rotation of the pin in a counter-clockwise manner causes the threads to bite simultaneously, effectively locking it into place. Plastic restorative materials including dental amalgam, composites, silicates, resins and gold foil may be inserted against the threaded protruding portion of the pin to enhance the retention and resistance characteristics.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: September 22, 1981
    Inventor: Wm. Ralph Sellers
  • Patent number: 4289287
    Abstract: Improvement to a fixed-wing airborne vehicle which results in significant delay drag rise well into the transonic regime. The fundamental features of the improvement include: fixedly skewing the wings at 45 degrees; shaping the outboard ends of the wing tips so that the trailing edge of the forwardly disposed wing is swept forwardly and the leading edge is straight relative to the trailing edge, and so that the leading edge of the rearwardly disposed wing is swept rearwardly and the trailing edge is straight relative to the leading edge; and, blending the leading and the trailing edges of the planform, so as to increase the local chord and control the longitudinal position of the maximum thickness in the root area (i.e., at the interface of the inboard tip end of each wing with the fuselage).
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: September 15, 1981
    Assignee: The Unites States of America as represented by the Secretary of the Air Force
    Inventors: Richard D. Child, Jan R. Tulinus
  • Patent number: 4288845
    Abstract: A floodlight illumination system, in structural combination with a fuel-receiving aircraft having an aerial refueling receptacle, that permits efficient and effective in-flight night refueling of the aircraft. The illumination system comprises: a selectively lightable, retractable aerodynamically shaped spoiler mounted on the nose of the aircraft which illuminates the top surface of the refueling receptacle, and, two similar (i.e., symmetrically shaped and dimensioned), selectively lightable fairings mounted on the port and starboard sides of the hose of the aircraft, parallel to airflow lines, with one fairing illuminating the port side surface of the refueling receptacle, and with the other fairing illuminating the starboard side surface of the refueling receptacle.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: September 8, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Wilma L. Finsness, Richard I. McMonagle, Edward M. Sedenquist
  • Patent number: 4285111
    Abstract: The tool is useful for the replacement of the lateral control torque tube bearings on high performance aircraft. The bearings are pulled into position into the bulkhead in a straight line thereby preventing them from becoming jammed because of the angle of the bulkhead surface into which the bearings are to be installed. The tool self-aligns the bearings without putting pressure on the bearing race thereby preventing the possibility of damage to the bearing and since the use of a shoulder driver and hammer are no longer required, damage to the bearing and/or aircraft is virtually eliminated.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: August 25, 1981
    Inventor: Harry Dubach