1
John F Hurley: Infrared radiation suppressor for gas turbine engine. Avco Corporation, Charles M Hogan, Irwin P Garfinkle, April 19, 1977: US04018046 (93 worldwide citation)

Apparatus for suppressing infrared radiation emitted from hot metal parts at the aft end of a gas turbine engine and from the exhaust gas plume thereof is provided and such apparatus employs components which utilize an ejector principle to provide cooling action utilizing ambient air and such compon ...


2
Daniel S Gnanamuthu, Edward V Locke: Surface modification. Avco Everett Research Laboratory, Charles M Hogan, Melvin E Frederick, March 29, 1977: US04015100 (91 worldwide citation)

Properties of a surface layer of a metal part are modified by changing its composition and microstructure using focused radiant energy. Minor components of an alloy having the metal of the substrate as the major component thereof are applied to the surface and a limited depth surface layer of the su ...


3
Keith Thomas: Electronic fluid sensing actuating target apparatus. Charles M Hogan, May 2, 1995: US05411269 (85 worldwide citation)

Water-gun Target Game and Apparatus in which a direct-current electrical water-presence detector, supported by or worn on an outer garment, is the bull's-eye. A hit by the water jet initiates action by a direct electrical effect, such as a resistance change, ordering responses by switching, sound or ...


4
George A Herzlinger, Armando Federico, Arthur R Kantrowitz: Method and means for monitoring cardiac output. Avco Everett Research Laboratory, Charles M Hogan, Melvin E Frederick, October 12, 1976: US03985123 (60 worldwide citation)

A cardiac output monitor. The monitor receives signals representing radial arterial pressure, balloon pressure, balloon drive and balloon volume from an intra-aortic balloon pumping system. These signals are processed to define balloon depletion pressure (P.sub.1), ventricle ejection pressure (P.sub ...


5
Clifford R Banthin, Gary W Decko, John F Hurley: Apparatus for and method of suppressing infrared radiation emitted from gas turbine engine. Avco Corporation, Charles M Hogan, Irwin P Garfinkle, Joseph V Tassone, February 15, 1977: US04007587 (44 worldwide citation)

An apparatus for and method of suppressing infrared radiation emitted from hot metal parts at the aft end of a gas turbine engine and from the exhaust gas plume thereof is provided and such apparatus comprises a dual purpose ejector vane assembly operatively attached to the engine for introducing co ...


6
Edward V Locke: Laser deep cutting process. Avco Corporation, Charles M Hogan, M E Frederick, June 22, 1976: US03965328 (44 worldwide citation)

A process of cutting thick metal workpieces wherein a cutting laser beam is inclined back from a cutting direction and oscillated in a direction parallel with the cutting direction while a gas jet is directed from above the workpiece at an angle approximately normal to the direction of the laser bea ...


7
Daniel S Gnanamuthu: Cladding. Avco Everett Research Laboratory, Charles M Hogan, Melvin E Frederick, April 20, 1976: US03952180 (41 worldwide citation)

A metal layer is clad to a metal substrate by laying spaced rods or wires of a cladding metal on the substrate surface and scanning the cladding metal with a continuously operating laser beam, part of which impinges directly on the cladding metal to melt it and part of which impinges on the adjacent ...


8
Gardiner Gay: Electron beam window structure for broad area electron beam generators. Avco Everett Research Laboratory, Charles M Hogan, Melvin E Frederick, December 6, 1977: US04061944 (41 worldwide citation)

An electron beam window structure for broad area electron beam generators wherein a stream of electrons generated in an evacuated enclosure and extending over a broad area are passed through a thin window to a region of high pressure outside the enclosure. The structure is positioned between the met ...


9
Kenneth E Walker, Anthony V Forte Jr: Deburring method. Avco Corporation, Charles M Hogan, Robert J McNair Jr, Irwin P Garfinkle, March 3, 1987: US04646479 (35 worldwide citation)

A deburring method is presented wherein a cylindrical brush rotationally contacts the workpiece. The brush includes a mandrel having a central axle to provide support during use. To the mandrel is attached a multiplicity of long bristles. Each bristle is flexible and has impregnated therein a plural ...


10
William R Freeman Jr: Cooled composite vanes for turbine nozzles. Avco Corporation, Charles M Hogan, Irwin P Garfinkle, Peter Kent, May 31, 1977: US04026659 (29 worldwide citation)

A turbine nozzle has inner and outer shrouds structurally connected by hollow core members which together with nose and tail inserts retained in the shrouds form airfoil-shaped vanes. Openings in one of the shrouds supply cooling air to the hollow vane cores whose walls have orifices to impinge air ...