Patents by Inventor Gary A. Harpell
Gary A. Harpell 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: 6144553Abstract: A refrigeration system for a disk drive storage is provided. The refrigeration system employs pairs of thin conducting plates, each pair of which is placed so as to sandwich a disk drive. The refrigeration system conducts heat generated from the disk drives via the thin conducting plates, heat pipes coupled to the thin conducting plates, a back plate and a chilled manifold. The heat is further removed as a refrigerant travels through to a compressor and then to a condenser, both of which are connected to the chilled manifold. In this way, the disk drive storage is able to increase its capacity from a bank of twelve disk drives to fourteen disk drives for a 1 inch disk drive storage and from eight disk drives to nine disk drives for a 1.6 inch disk drive storage system, thereby realizing an increased density system without sacrificing a low operating temperature.Type: GrantFiled: September 9, 1998Date of Patent: November 7, 2000Assignee: Sun Microsystems, Inc.Inventors: Vince P. Hileman, Gary A. Harpell
-
Patent number: 5793608Abstract: An enclosure contains, among other components, hard drive cartridges, graphics or other option cards, power supply and a CPU and its support chips. The total power in the whole enclosure is about 325W and the CPU consumes about 30W of this total. For design purposes the components are closely positioned and hence heat dissipation is an important problem. Plural fans, as hereinafter disclosed, are used to circulate air. For the hard drive cartridges a fan snapped into a sidewall of the enclosure draws air from apertures in the bottom through the cartridge and into a plenum. For the CPU, an impingement fan discharges air directly downward on a heat sink positioned over the chip and into the plenum. Bulk flow fans discharge air from air intake vents in side walls of the enclosure as well as air discharged from the hard drive and CPU through an internal wall into a separate sub-enclosure for the power supply and thence to the exterior.Type: GrantFiled: June 11, 1996Date of Patent: August 11, 1998Assignee: Sun Microsystems, Inc.Inventors: Alan Lee Winick, Nagaraj Mitty, Gary A. Harpell
-
Patent number: 5677029Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises two or more layers, at least one of said layers being a fibrous layer, and at least one of said layers being a polymeric layer in contact with and bound to all or portion of said fibrous layer.Type: GrantFiled: December 12, 1996Date of Patent: October 14, 1997Assignee: AlliedSignal Inc.Inventors: Dusan C. Prevorsek, Gary A. Harpell, David Wertz
-
Patent number: 5376426Abstract: A flexible composite of manufacture especially suitable for use as a ballistic resistant body armor. An improved penetration resistant composite of the type comprising at least one substrate layer having one or more planar bodies affixed to a surface thereof, the improvement comprising laminated planer bodies comprising at least two layers, at least one or said layers being a metal layer positioned on the impact side of said bodies exposed to said threat and at least one of said layers being a fibrous layer comprising a fiber network in a polymeric matrix.Type: GrantFiled: December 9, 1993Date of Patent: December 27, 1994Assignee: AlliedSignal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 5362527Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises one or more composite layers, at least one of said composite layers comprising a base layer having a plurality of planar bodies positioned between two sandwiching flexible layers out of contact with each other and a plurality of planar bodies positioned on a surface of said base layer out of contact with each other and in disalignment with the sandwiched planar bodies.Type: GrantFiled: January 21, 1993Date of Patent: November 8, 1994Assignee: AlliedSignal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek, Max W. Gerlach
-
Patent number: 5316820Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises at least one substrate, said layers being a fibrous layer, and at least one layer having a plurality of bodies sewn to at least one surface of said substrate layer, said bodies having one or more flexible seams which allow portions of said body to flex along said seam.Type: GrantFiled: June 7, 1993Date of Patent: May 31, 1994Assignee: AlliedSignal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 5254383Abstract: An improved flexible composite of manufacture especially suitable for use as a ballistic resistant body armor, said improved penetration resistant composite of the type comprising at least one penetration resistant layer comprising a flexible substrate having a plurality of penetration resistant elements on a surface thereof, said elements comprising a planar body having one or more fibrous layers on a surface of said body, each of said layers comprising a fiber network, said fiber network such that movement of said fibers in the direction of the edges of said body is restrained.Type: GrantFiled: September 14, 1992Date of Patent: October 19, 1993Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek, Max W. Gerlach
-
Patent number: 5202167Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises one or more composite layers, at least one of said composite layers comprising a base layer having a plurality of planar bodies positioned between two sandwiching flexible layers out of contact with each other and a plurality of planar bodies positioned on a surface of said base layer out of contact with each other and in disalignment with the sandwiched planar bodies.Type: GrantFiled: May 24, 1991Date of Patent: April 13, 1993Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek, Max W. Gerlach
-
Patent number: 5198280Abstract: An improved article of the type comprising one or more flexible fibrous layers wherein the fibers in each layer are arranged parallel or substantially parallel to one another along a common fiber direction with fibers in adjacent layers aligned at an angle with respect to the longitudinal fiber axis of the fibers contained in the layers.Type: GrantFiled: October 25, 1990Date of Patent: March 30, 1993Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 5196252Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises a flexible substrate layer having a plurality of planar non-metallic bodies mechanically affixed to a surface thereof.Type: GrantFiled: November 19, 1990Date of Patent: March 23, 1993Assignee: Allied-SignalInventor: Gary A. Harpell
-
Patent number: 5187023Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises at least one substrate, said layers being a fibrous layer, and at least one layer having a plurality of metallic bodies sewn to at least one surface of said substrate layer.Type: GrantFiled: November 19, 1990Date of Patent: February 16, 1993Assignee: Allied-Signal Inc.Inventors: Dusan C. Prevorsek, Gary A. Harpell
-
Patent number: 5185195Abstract: An improved article of the type comprising a plurality of flexible fibrous layers at least two of which are secured together by a securing means, said improvements comprising a securing means which comprises at least two adjacent paths wherein the distance between said paths is less than about 1/8 in.Type: GrantFiled: November 19, 1990Date of Patent: February 9, 1993Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek, David V. Cunningham
-
Patent number: 5175040Abstract: The present invention is a flexible impact resistant article comprising a plurality of prepreg packets. Each prepreg packet comprises at least about 2 prepreg layers. Each prepreg layer comprises a plurality of coplanar fibers embedded in a polymeric matrix. There is a means to maintain at least a portion of each prepreg packet in successive layers. The prepreg packets are unattached to each other over a portion of their adjacent areas, preferably over a substantial portion of their adjacent areas. The plurality of packets results in improved flexibility.Type: GrantFiled: May 10, 1991Date of Patent: December 29, 1992Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek, Hsin L. Li
-
Patent number: 5160776Abstract: The present invention provides an improved composite which comprises one or more layers, at least one of said layers comprising network of high strength filaments having a tensile modulus of at least about 160 grams/denier, a tenacity of at least about 7 g/denier and an energy-to-break of at least about 8 joules/gram in a matrix material, the ratio of the thickness of said layer to the equivalent diameter of said filaments is equal to or less than about 12.8, and complex composite articles formed from said composite.Type: GrantFiled: June 24, 1991Date of Patent: November 3, 1992Assignee: Allied-Signal Inc.Inventors: Hsin L. Li, Dusan C. Prevorsek, Gary A. Harpell, Young D. Kwon
-
Patent number: 5135804Abstract: A network of non-porous polyethylene fibers substantially free of voids formed by preparing a network of gel spun fibers, applying pressure to the network at a temperature and pressure and for a time adequate to form a translucent film substantially free of voids.Type: GrantFiled: May 29, 1990Date of Patent: August 4, 1992Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Sheldon Kavesh, Igor Palley, Dusan C. Prevorsek
-
Patent number: 5124195Abstract: A coated web or composite having improved flexibility. The coated web of the present invention comprises at least one layer and preferably at least two layers. The layers comprise a fibrous web located or embedded with polymeric composition. The coated web is flexed sufficiently over at least a portion of the web surface to have improved flexibility properties. The web can be flexed in a single direction along the surface or randomly along the whole surface. Preferably, the web is flexed sufficiently to form a plurality of permanent creases or wrinkles. The coated web has improved flexibility, and at the same time, impact resistant properties, such as ballistic resistance, are substantially maintained compared to an unflexed web.Type: GrantFiled: January 10, 1990Date of Patent: June 23, 1992Assignee: Allied-Signal Inc.Inventors: Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 5093158Abstract: A method of making a composite of a unidirectional fibrous web in a polymer matrix composition by nonuniformly feeding a polymer composition into contact with a unidirectional fibrous web into a gap between two adjacent compression surfaces with at least one of the surfaces having a pattern. This results in the polymer becoming nonuniformly distributed into thick areas and thin areas as a matrix for the fibrous web.Type: GrantFiled: November 28, 1988Date of Patent: March 3, 1992Assignee: Allied-Signal Inc.Inventors: Hsin L. Li, Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 5061545Abstract: The present invention is a composite comprising a fibrous web and a matrix composition nonuniformly distributed in the major plane of a fibrous web.Type: GrantFiled: November 28, 1988Date of Patent: October 29, 1991Assignee: Allied-Signal Inc.Inventors: Hsin L. Li, Gary A. Harpell, Dusan C. Prevorsek
-
Patent number: 4916000Abstract: The present invention provides an improved composite which comprises one or more layers, at least one of said layers comprising network of high strength filaments having a tensile modulus of at least about 160 grams/denier, a tenacity of at least about 7 g/denier and an energy-to-break of at least about 8 joules/gram in a matrix material, the ratio of the thickness of said layer to the equivalent diameter of said filaments is equal to or less than about 12.8, and complex composite articles formed from said composite.Type: GrantFiled: July 13, 1987Date of Patent: April 10, 1990Assignee: Allied-Signal Inc.Inventors: Hsin L. Li, Dusan C. Prevorsek, Gary A. Harpell, Young D. Kwon
-
Patent number: 4897902Abstract: Ultrahigh molecular weight polyethylene fibers of high tenacity and modulus shrink controlled amounts at temperatures in the range of 100.degree.-155.degree. C. Fabrics and twisted multifilament yarns of these fibers are heat-shrunk or heat-set at these temperatures.Type: GrantFiled: November 4, 1988Date of Patent: February 6, 1990Assignee: Allied-Signal Inc.Inventors: Sheldon Kavesh, Dusan C. Prevorsek, Gary A. Harpell