Patents by Inventor C. Evans
C. Evans 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).
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Patent number: 4989406Abstract: A turbine assembly includes an annular fairing and strut subassembly which provides mechanical strength to the turbine assembly and support for the rotor aft bearing. A readily demountable annular outlet guide vane assembly is mounted to the aft of the fairing and strut assembly for deswirling the exhaust gasses which exit the turbine assembly. The aft mounting of the outlet guide vanes allows for an axially shorter and lighter turbine engine design which removes greater inlet swirl than prior designs, with equal or less pressure loss.Type: GrantFiled: December 29, 1988Date of Patent: February 5, 1991Assignee: General Electric CompanyInventors: John W. Vdoviak, Roy E. Moyer, Dennis C. Evans
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Patent number: 4986811Abstract: A system is disclosed for removing disposable needles from syringes, which requires only one hand to operate and which exposes the user to minimal risk of contact with the contaminated needle. The user inserts the syringe and presses downwardly, whereupon disconnecting gears engaging the collar of the needle unscrew the needle and allow it to drop into a container. Return springs then automatically return the device to its original configuration.Type: GrantFiled: September 23, 1988Date of Patent: January 22, 1991Assignee: Post Medical, Inc.Inventors: William H. Thead, John C. Evans
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Patent number: 4934610Abstract: A reactive metal such as zirconium, hafnium, and titanium is subjected to comminution in a closed chamber containing a non-reactive gas modified by the addition of preferably somewhat less than one volume percent of water vapor.Type: GrantFiled: October 16, 1989Date of Patent: June 19, 1990Assignee: Westinghouse Electric Corp.Inventor: Steven C. Evans
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Patent number: 4930340Abstract: The telescoping housing and shaft of a height sensor for an automotive vehicle are each provided with a boss, and an elongate calibration bracket has a pair of apertures in which said bosses are respectively received, whereby the calibration bracket temporarily locks the housing and shaft in a predetermined relationship with respect to each other.Type: GrantFiled: September 19, 1989Date of Patent: June 5, 1990Assignee: Kelsey-Hayes CompanyInventor: Anthony C. Evans
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Patent number: 4930606Abstract: A composite rotor and an improved hat section structure therefor, wherein the hat section is formed to include a rim having a non-planar, rotor-engaging periphery. A rotor discoid is then cast around the hat section so that a portion of the rotor discoid encloses or covers at least the non-planar periphery of the rim and bonds thereto. Composite rotors so produced have been shown to have exceptionally uniform stress distribution during vehicle braking.Type: GrantFiled: July 26, 1988Date of Patent: June 5, 1990Assignee: Kelsey-Hayes CompanyInventors: Robert S. Sporzynski, Anthony C. Evans, Richard T. Robinette
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Patent number: 4921734Abstract: Cylinder liners for internal combustion engines, particularly diesel engines, are described the liners comprising a metal outer sleeve having therein an inner sleeve comprising a ceramic material which is held by compressive hoop stresses under all normal engine operating conditions, the inner sleeve extending over at least a part of the axial length of the liner. In a preferred embodiment the inner sleeve comprises a composite material of two different ceramic materials. For example an inner sleeve is described having a silicon nitride working surface with a layer of partially stabilized zirconia thereon.Type: GrantFiled: May 11, 1988Date of Patent: May 1, 1990Assignee: AE PLCInventors: William A. Thorpe, David C. Evans
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Patent number: 4899876Abstract: A spring for each end of a tubular carrier to secure them against sliding and slipping within the tube. The spring having a tongue carrying on its tip an upwardly jutting pin which is upwardly resilient. The pin latches into through apertures in the top wall of the carrier and may have a camming means forward of the pin comprising a pair of ramps extending forward and down from the pin and symmetrical about a longitudinal axis.The tongue has a base and in one embodiment extends rearward of the base. In a preferred embodiment the tongue has a base and extends forward of the base. The tongue may have a surround, and in the preferred embodiment the tongue may extend forward of a lower ledge at the rear of the surround.In use, as the spring enters the carrier against a chip, the pin is cammed down. When the spring is compressed against the chip sufficiently, the pin enters an aperture in the top wall of the carrier, and latches the spring.Type: GrantFiled: April 21, 1989Date of Patent: February 13, 1990Assignee: R. H. Murphy Co., Inc.Inventors: Robert H. Murphy, Thomas C. Evans, Demetrios E. Kapnias
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Patent number: 4876514Abstract: A switching system for powering first and second electrical loads from a voltage supply, the electrical loads being operable from controls and adapted to be connected to the voltage supply by the switching system. The switching system includes switching circuitry having a control element which is responsive to a control voltage difference to cause the switching circuitry to become conductive, the switching circuitry having a switch terminal connected to a first supply line and another switch terminal connected to the first electrical load. The switching system also includes additional circuitry responsive to the controls for generating the control voltage difference when the voltage supply is connected to the first supply line thereby powering the first electrical load from the first supply line. The switching system further includes further circuitry responsive to the controls for generating first and second control signals.Type: GrantFiled: June 24, 1988Date of Patent: October 24, 1989Assignee: Peabody Coal CompanyInventors: Vernon C. Evans, George H. Heidinger
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Patent number: 4856223Abstract: A fishing lure detector and method of binding foam or textile material to plastisol. The fishing lure detector member made of foam or textile material is for improving the fishing lures. The fishing lure detector means is connected to a fishing lure body at a position adjacent or in front of the fishing lure hook to aid the fisherman in detecting when a fish strikes the lure and in turn aiding the fisherman to set the hook in the fish. The fishing lure detector member includes resilient open cell plastic material that may be integrally connected to the body of a plastic worm lure or connected to the body of a hard lure. The open cell plastic material is engaged by the fish striking the body of the fishing lure and transmits a tug signal along the fishing lure. The fishing lure body when constructed of a flexible or soft thermoplastic such as plastisol or a polyvinyl chloride allows both the fishing lure body and the detector member to stretch longitudinally with one another.Type: GrantFiled: November 13, 1985Date of Patent: August 15, 1989Inventor: Steven C. Evans
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Patent number: 4854423Abstract: A generally hat-shaped disc for a disc brake system is provided with an inner cylindrical surface serving as the drum of a drum in hat parking brake. A unitary backing plate supports the parking brake assembly and provides integral mounting parts for the fist type sliding caliper of the disc brake assembly.Type: GrantFiled: July 26, 1988Date of Patent: August 8, 1989Assignee: Kelsey Hayes CompanyInventors: Anthony C. Evans, Larry L. Last
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Patent number: 4841159Abstract: A switching system for powering first and second electrical loads from a voltage supply, the electrical loads being operable from controls and adapted to be connected to the voltage supply by the switching system. The switching system includes switching circuitry having a control element which is responsive to a control voltage difference to cause the switching circuitry to become conductive, the switching circuitry having a switch terminal connected to a first supply line and another switch terminal connected to the first electrical load. The switching system also includes additional circuitry responsive to the controls for generating the control voltage difference when the voltage supply is connected to the first supply line thereby powering the first electrical load from the first supply line. The switching system further includes further circuitry responsive to the controls for generating first and second control signals.Type: GrantFiled: August 29, 1986Date of Patent: June 20, 1989Assignee: Peabody Coal CompanyInventors: Vernon C. Evans, George H. Heidinger
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Patent number: 4836428Abstract: A bag structure particularly adapted for carrying a heavy load, such as mail and the like, at the waist to either side of the body. The bag includes a mail container constructed of a heavy, wear-resistant material such as, for example, canvas. The bag has a front wall, a back wall spaced from the front wall, spaced apart end walls interconnecting the front and back walls, a floor, and an open top. A belt is adapted to be attached to the mail container and releasably wrap around the waist of a person to carry the container. A belt loop device is located at the back wall of the container for removably attaching the belt to the exterior surface of the container back wall.Type: GrantFiled: August 12, 1985Date of Patent: June 6, 1989Assignee: Kally, Inc.Inventors: Richard C. Evans, William S. Schell
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Patent number: 4823920Abstract: A disc brake assembly with a pivotable caliper is disclosed. The disc brake is a dual pin type, floating caliper disc brake wherein the caliper can be pivoted about one of the pins to facilitate servicing thereof while the caliper remains supported by that pin. Also disclosed is a novel outboard brake shoe assembly including spring clips having a retaining surface for engaging a stop provided on the outboard caliper leg to restrict radial movement of the caliper. The outboard brake shoe assembly can further comprise at least one projection for engaging the outboard caliper leg to restrain undesired circumferential movement of the caliper. The spring clips may further be configured to bias the brake shoe assembly against the caliper to prevent rattle of the brake shoe assembly.Type: GrantFiled: May 2, 1988Date of Patent: April 25, 1989Assignee: Kelsey-Hayes CompanyInventor: Anthony C. Evans
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Patent number: 4802602Abstract: An insulating device for a beverage container including a flexible insulating sleeve for receiving a beverage container therein. A cover is provided for covering the top opening of the insulating device. A strap is provided to cover the bottom of the insulating device whereby the beverage container cannot pass through the insulating device. The cover is provided with two fastening devices whereby the cover may be secured over the beverage container or may be looped around to form a handle for the insulating device. A belt loop is also provided on the insulating device whereby the entire device may be secured to a belt.Type: GrantFiled: December 8, 1987Date of Patent: February 7, 1989Assignee: Kover-up, Inc.Inventors: John C. Evans, Charles E. Campbell, John E. Blair
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Patent number: 4789332Abstract: A process and apparatus for removing volatile contaminants from scrap metal is disclosed. The process is carried out in a furnace maintained at a relatively constant temperature and having a first zone in which volatiles contained on the surface of the metal are vaporized and a second zone in which carbon contained on the surface of the metal is pyrolyzed. The furnace also has a conveyor for transporting metal therethrough at a specific speed to ensure complete vaporization and pyrolysis of the contaminants. The process includes the steps of sufficiently vaporizing the volatiles without oxidizing the metal, the vaporizing producing fumes containing unburned hydrocarbons. The hydrocarbon fumes are then burned to produce hot gas which is recirculated to the furnace. The hot gas contacts the incoming metal and vaporizes the volatiles contained thereon.Type: GrantFiled: October 13, 1987Date of Patent: December 6, 1988Assignee: Aluminum Company of AmericaInventors: Everett M. Ramsey, Bruce A. Gray, Donald C. Evans
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Patent number: 4785399Abstract: Cumulative translational sweeps are used to shape geometric objects in a computer model, and they permit display of the resulting changes in shape in the object modelled, and control of processes involving the object modelled. If the geometric object is polyhedral, the cumulative translational sweeps, by creating additional facets, effect selective rounding along model edges and around model vertices. This permits computer modelling of the growth of layers, encompassing in addition to flat surface growth, growth with rounding around corners and over obstacles. Such growth occurs in the manufacture of semiconductors. Modelling a change in a solid structure in stages of growth (or shrinking) and of rounding, as might take place during processing of integrated circuits is achieved by controlled sweep sequences that sweep the structure a finite number of times in accordance with a rayset and stipulated parameters of shape, balance, convexity/concavity, degree of faceting, and memory limitation.Type: GrantFiled: March 3, 1987Date of Patent: November 15, 1988Assignee: International Business Machines CorporationInventors: Roger C. Evans, George M. Koppelman, Vadakkedathu T. Rajan
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Patent number: 4784603Abstract: A process and apparatus is disclosed for removing volatile contaminants from scrap metal. The process is carried out in a furnace maintained at a relatively constant temperature having a first zone in which volatiles contained on the surface of the metal are vaporized and a second zone in which carbon contained on the surface of the metal is pyrolyzed. The furnace also has a vibrating conveyor for transporting metal therethrough at a specific speed. The process includes the step of vaporizing and fluidizing the volatiles to produce fumes containing unburned hydrocarbons without oxidizing the metal. The hydrocarbon fumes are then burned to produce hot gas which is recirculated to the furnace so as to contact new incoming scrap metal.Type: GrantFiled: October 16, 1987Date of Patent: November 15, 1988Assignee: Aluminum Company of AmericaInventors: Casimir B. Robak, Jr., Donald C. Evans, Everett M. Ramsey
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Patent number: 4755912Abstract: A scanning light source system for projecting onto each area of a complete painting or other planar subject a beam of light and for moving said beam vertically and horizontally. The vertical movements comprise a succession of sweeps across the painting for the purpose of consecutively illuminating each part of the painting sufficiently strongly so that the whole may be photographically reproduced more satisfactorily than has been possible heretofore, i.e. through the use in combination of Kodak #6121 duplicating film or another gamma 1.0 film, polarizing filters, and a lens aperture of f22 or smaller. The horizontal movements position the light source for each vertical sweep. Said system enables a beam of light to be projected onto each part of the entire surface of the subject painting an angle of greater than 40.degree. and less than 80.degree., thereby enabling brush-stroke and texture detail of a painting to be accurately rendered in a photographic reproduction.Type: GrantFiled: May 20, 1987Date of Patent: July 5, 1988Assignee: Gamma One Conversions, Inc.Inventor: Edwin C. Evans
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Patent number: 4751726Abstract: A telemetry base station for use in a system also including a patient worn EKG monitor and transmitter, and a physician monitoring station. The base station is microprocessor controlled, and includes a receiver for receiving FM EKG transmissions from the patient transmitter, an A to D converter, a conventional telephone set, used as an intercom to communicate with the physician, and a data modem which is used for digitized transmissions of the EKG signals. Base station functions including selection of data or voice transmission are controlled by a physician monitoring station. The base station includes simulated telephone ringing functions which assist in its use by patients without specialized training.Type: GrantFiled: March 10, 1986Date of Patent: June 14, 1988Assignee: Futurecare Systems, Inc.Inventors: Dennis G. Hepp, Paul J. Beckmann, Thomas C. Evans, Robert A. Neumann, Maynard J. Hoffman, Thomas L. Jirak
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Patent number: D298921Type: GrantFiled: September 11, 1986Date of Patent: December 13, 1988Inventors: Gerald L. Berry, Sr., Arthur C. Evans, Wendell L. Berry