Patents by Inventor C. Paul
C. Paul 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: 5036659Abstract: Overheating of hydraulic fluid in a hydraulic motor system subject to aiding loads can be avoided without paying a weight or volume penalty by providing a return port (64) adapted to be connected to the system return (22) in fluid communication with a cavity (46) within an hydraulic motor housing (32) that houses the swash plate (34). A pressure relief valve (62) is connected to the supply port (38) of the hydraulic motor (30) as well as to the return port (64) and is operative to open when the pressure at the supply port (38) increases as a result of an aiding load so as to allow recirculation of hydraulic fluid through the motor (30). By placing the swash plate cavity (46) in the recirculation line, increased heat sink capacity is added to the system without increasing weight or volume.Type: GrantFiled: November 13, 1989Date of Patent: August 6, 1991Assignee: Sundstrand CorporationInventors: Gary D. Gillingham, Steven C. Paul
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Patent number: 5037418Abstract: An absorbent article is disclosed having an absorbent with a bodyside surface and a garment facing surface. A liquid-impermeable baffle is positioned adjacent to the garment facing surface of the absorbent and a liquid-permeable cover cooperates with the baffle to enclose the absorbent and form a pad. The pad has a pair of longitudinal side edges and a pair of distally spaced ends. A garment adhesive strip is secured to the garment facing surface of the pad and is positioned along the longitudinal axis thereof. The garment adhesive strip provides attachment of the pad to the crotch portion of the undergarment. A pair of adhesive strips are secured to the cover and are positioned on opposite sides of the garment adhesive strip. A liquid-impermeable protective sheet can be optionally attached to the pair of adhesive strips to prevent side leakage of body fluid off of the pad from staining the crotch portion of the undergarment.Type: GrantFiled: October 27, 1989Date of Patent: August 6, 1991Assignee: Kimberly-Clark CorporationInventors: Hugo L. Kons, Susan C. Paul
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Patent number: 5002597Abstract: The filter of the present invention continually provides the passenger compartment of a vehicle with a supply of purified air, even in the most severe environmental conditions. The filter comprises an inlet surface, an outlet surface, walls which define a plurality of passages which extend from the inlet surface to the outlet surface, and a filtration means for removing the impurities from the fluid. The filter preferably can be subdivided into a plurality of layers, including an inlet layer, an intermediate layer, an outlet layer. Each layer includes a plurality of cells, the cells having walls with a generally curvilinear shape. A plurality of the passages are preferably in fluid communication with a plurality of other passages. Surface filtration is used to remove the impurities from the fluid flowing through the passages.Type: GrantFiled: April 3, 1989Date of Patent: March 26, 1991Assignee: Invent AGInventors: Robert L. Gielow, James C. Paul
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Patent number: 4990829Abstract: A high-power, high-frequency discharge apparatus is disclosed. An electrical wave is guided toward the discharge region by a hollow waveguide that is coupled to a discharge electrode via a waveguide transition element. The waveguide transition element can be formed of various shapes. Obstacles placed in the waveguide provide impedance matching and minimize power reflected back toward the source. The obstacles may be movable to optimize impedance matching.Type: GrantFiled: April 21, 1989Date of Patent: February 5, 1991Assignee: Potomac Photonics, Inc.Inventor: C. Paul Christensen
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Patent number: 4985584Abstract: A process for the production of a high energy nitrate ester involves reacting, in an inert organic solvent, a heterocyclic compound, selected from oxiranes, oxetanes, N-substituted aziridines and N-substituted azetidines, with either N.sub.2 O.sub.4 or N.sub.2 O.sub.5, and when the compound is reacted with N.sub.2 O.sub.4, oxidizing the O- or N-nitrate substituents or substituent in the product to O- or N-nitrate substituent or substituents. The remaining ring carbon atoms on the heterocyclic compound may be substituted or unsubstituted. Preferred substituent groups for the C and/or N ring atoms on the compound include alkyl, cyanoalkyl, haloalkyl, nitroalkyl, and substituted aryl.Several novel nitrate ester are also provided, including nitrated derivatives of polybutadiene, in which between 1% and 25% of the carbon atoms in the polymer are substituted by vicinal nitrate ester (--ONO.sub.2) groups.Type: GrantFiled: October 27, 1986Date of Patent: January 15, 1991Assignee: Secretary of State for DefenceInventors: Ross W. Millar, Norman C. Paul, David H. Richards
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Patent number: 4853208Abstract: A method of detoxifying hazardous wastes containing mercury, zinc, selenium, arsenic, antimony, or thallium by mixing the waste with silicate and a setting agent which together form an alkaline silicate matrix. An additive other than the silicate and setting agent is mixed with the waste, prior to the matrix setting, to form a complex with the mercury, zinc, selenium, arsenate, antimony, thallium, or copper that is substantially insoluble in the environment of the alkaline silicate matrix. The alkaline silicate matrix thereby binds wastes which could otherwise leach out to contaminate the environment.Type: GrantFiled: March 21, 1988Date of Patent: August 1, 1989Assignee: Chemfix Technologies, Icc.Inventors: Robert S. Reimers, Thomas G. Akers, C. Paul Lo
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Patent number: 4820859Abstract: A process for the production of a high energy material involves reacting, in an inert organic solvent, a heterocyclic compound selected from oxirane, aziridine, oxetane or azetidine with a nitrogen oxide selected from dinitrogen tetroxide (N.sub.2 O.sub.4) and dinitrogen pentoxide (N.sub.2 O.sub.5) and, when the nitrogen oxide is N.sub.2 O.sub.4, oxidizing the O- or N- nitroso substituent or substituents in the product obtained to O- or N- nitro substituent or substituents. The heterocyclic compounds may be substituents or unsubstituted. In the former case the preferred substituents groups are halogen, alkyl, alkenyl, nitro and epoxy (as in epoxidized polybutadiene). The solvent is preferably a chlorinated alkane.Novel nitrated derivatives of polybutadiene, in which between 1% and 25% of the carbon atoms in the polymer are substituted by nitrate (ONO.sub.2), are also provided. These novel materials are liquid rubbers when the polybutadiene starting material has a molecular weight between 2000 and 10000.Type: GrantFiled: November 5, 1985Date of Patent: April 11, 1989Assignee: Secretary of State for Defence in Her Majesty's Government of the United KingdomInventors: Ross W. Millar, Norman C. Paul, David H. Richards
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Patent number: 4812843Abstract: A traffic information system which is directly accessed by individual subscribers by telephone, mobile telephone or computer wherein the subscriber will have the option of receiving reports of updated information by way of telephone, mobile telephone, personal computer or personalized pager. The system provides information concerning the current status of traffic conditions along specific commuter routings and/or other information which may be of interest to a subscriber including airline flight and related travel and stock information, generalized routing information as in the form of directions to particular locations, stock activity and the like. Upon the subscriber's demand, the system continuously monitors selected routings or other information and automatically provides the subscriber with updated information concerning changes in status or conditions.Type: GrantFiled: August 11, 1987Date of Patent: March 14, 1989Inventors: C. Paul Champion, III, Robert W. Libero, Walter J. Palmer
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Patent number: 4804566Abstract: A multilayer structure which comprises a layer comprising a polybutylene terephthalate adjacent to a layer comprising an aromatic polyester selected from the group consisting of aromatic polycarbonate, copolyestercarbonate, polyarylate, or mixtures thereof.Type: GrantFiled: June 25, 1986Date of Patent: February 14, 1989Assignee: General Electric CompanyInventors: William C. Paul, Kirk L. Kimbel
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Patent number: 4799853Abstract: An apparatus which acquires individual articles having a substantially cylindrical aperture therein from a supply of roughly aligned articles in a storage bin. The apparatus grips the article on the interior wall of the cylindrical aperture therein. The gripper is moved to retract the article from the storage bin. The article is then moved to a receiving member which aligns the longitudinal axis of the cylindrical aperture of the article substantially parallel or coincidental with the longitudinal axis of the receiving member.Type: GrantFiled: October 6, 1986Date of Patent: January 24, 1989Assignee: Xerox CorporationInventors: Edward J. Wrobbel, Louis S. Canzoneri, Ronald P. Cocchiara, Nikhil C. Paul
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Patent number: 4789809Abstract: In a high-frequency discharge apparatus utilizing a discharge tube positioned between an electrode and a ground plane, the electrode is shaped so as to increase the uniformity of the electric field across the discharge tube. Furthermore, a transmission line is formed between a conductor connected to the electrode and the ground plane, and impedance matching in the transmission line is provided by metal and/or dielectric tuning slugs inserted between the conductor and the ground plane.Type: GrantFiled: March 19, 1987Date of Patent: December 6, 1988Assignee: Potomac Photonics, Inc.Inventor: C. Paul Christensen
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Patent number: 4740475Abstract: A disposable, self-contained, light weight integral device for detecting, by means of activating an indicator, the presence of a predetermined substance in a sample fluid which is introduced into a test chamber. The device has a deformable housing which forms a test chamber for interacting the indicator material with the sample fluid, wherein a rupturable vessel of reagent is contained adjacent the test chamber, which vessel can be ruptured by application of a predetermined pressure through the walls of the deformable housing. Upon rupturing the vessel, the contents thereof are exposed to the sample fluid introduced into the chamber. In the presence of the predetermined substance in the sample fluid, the indicator undergoes the indicated change. The device can contain more than one vessel and a receptacle. One or more of the vessels can contain more than one indicator substance.Type: GrantFiled: March 28, 1986Date of Patent: April 26, 1988Assignee: Medi-Scan, Inc.Inventor: Philip C. Paul
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Patent number: 4738203Abstract: Air flow guide members at each end of the cargo carrying structure of an open top gondola type railway car, together with rounded transition or corner surfaces on the exterior of the car and aerodynamically shaped and oriented cross braces within the car serve to reduce aerodynamic drag on the car as it is moved. Additionally, to further enhance the energy efficiency of the car, the cargo carrying structure is formed predominantly of a light weight weldable metal, such as an aluminum alloy, and the side support members are placed on the interior wall of each side to provide a smooth, minimized air flow resistant side surface.Type: GrantFiled: July 21, 1986Date of Patent: April 19, 1988Assignee: Pullman Standard, Inc.Inventors: Robert L. Gielow, James C. Paul
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Patent number: 4734177Abstract: A process and apparatus for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photolysis, photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photolysis, photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium.Type: GrantFiled: November 26, 1975Date of Patent: March 29, 1988Assignee: The United States of America as represented by the United States Department of EnergyInventors: C. Paul Robinson, Reed J. Jensen, Theodore P. Cotter, Keith Boyer, Norman R. Greiner
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Patent number: 4729409Abstract: An underground electrical conduit hexagonal in cross-section and having internal partition walls subdividing the conduit into a plurality of longitudinal ducts. The internal partition walls are symmetrically disposed about a central longitudinal axis of the conduit and serve as bracing structure to strengthen and support the outer walls of the conduit.Type: GrantFiled: August 6, 1982Date of Patent: March 8, 1988Assignee: Borg-Warner CorporationInventor: Howard C. Paul
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Patent number: 4717794Abstract: A switch mechanism for controlling circuits such as in a microwave oven including a housing with a removable cover and a latch member and plunger member movable between a first position wherein the microwave oven door is closed and a second position, with the primary microwave circuits closed in said first position. Contact arms which all extend in one direction toward the latch member and plunger, a catch for holding the door closed, a slide for operating the primary switch means, and a cam operated by the plunger for operating switch means, all are slidably removable from the housing in a lateral direction. The switch sequence is arranged so that one set of primary contacts open after the other, and the structure is arranged so that if the slide for operating the switch means sticks, the movement of the plunger to the second position will insure that the circuit containing the primary switch means is opened.Type: GrantFiled: August 1, 1986Date of Patent: January 5, 1988Assignee: Tricon Industries, IncorporatedInventors: Donald C. Paul, Dennis R. Cakora
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Patent number: 4679592Abstract: Disclosed is a valve trim design for use in reducing valve cavitation. Valve and seat are axially movable and have frustoconical facing surfaces which form an annulus therebetween to control flow. The seat has an external frustoconical surface and a plurality of pairs of ports communicating with an internal bore. The ports are aligned so that flow from the ports impinge upon each other within the interior chamber of the valve seat to reduce cavitation.Type: GrantFiled: October 7, 1985Date of Patent: July 14, 1987Assignee: Teledyne Industries, Inc.Inventor: C. Paul Lamb
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Patent number: 4669182Abstract: A bimetal snap disc thermostat is disclosed which is structured for automated assembly. Such thermostat includes a body with contact supports molded therein in a manner providing sufficient strength so that terminals can be riveted onto the contact supports after assembly. The body and contact support subassembly is structured so that it is symmetrical on opposite sides of a central axis. A disc cup is provided with axial and radial surfaces which accurately locate the disc during and after assembly. Also disclosed is a method of gaging and calibrating the thermostat automatically. Calibration of the spring force of the movable contact is accomplished by sensing the force in a given position and subsequently deforming the spring until a predetermined force exists in such predetermined position. Gaging is accomplished by deforming a projection from the movable contact arm until a predetermined uniform spacing is established between such projection and a gaging surface.Type: GrantFiled: October 2, 1985Date of Patent: June 2, 1987Assignee: Therm-O-Disc, IncorporatedInventors: C. Paul Ferroni, Jonathan L. Linton, Donald J. Schmitt
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Patent number: 4661221Abstract: A process for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium and plutonium.Type: GrantFiled: December 23, 1985Date of Patent: April 28, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: C. Paul Robinson, Reed J. Jensen, Theodore P. Cotter, Norman R. Greiner, Keith Boyer
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Patent number: 4655890Abstract: Multiple photon absorption from an intense beam of infrared laser light may be used to induce selective chemical reactions in molecular species which result in isotope separation or enrichment. The molecular species must have a sufficient density of vibrational states in its vibrational manifold that, is the presence of sufficiently intense infrared laser light tuned to selectively excite only those molecules containing a particular isotope, multiple photon absorption can occur. By this technique, for example, intense CO.sub.2 laser light may be used to highly enrich .sup.34 S in natural SF.sub.6 and .sup.11 B in natural BCl.sub.3.Type: GrantFiled: February 8, 1985Date of Patent: April 7, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: C. Paul Robinson, Stephen D. Rockwood, Reed J. Jensen, John L. Lyman, Jack P. Aldridge, III