Patents Assigned to E
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Patent number: 5836132Abstract: A reusable anchor bolt template (10) and method for suspending an anchor bolt (56) into a concrete material (53) and adapted to be fastened to a single form element (54) at a top end and a bottom end of the form element (54). The preferred embodiment (10) of a reusable anchor bolt template is comprised of a form plate (11) that engages and rests upon the top portion of the form element (54). Adjustably attached to the form plate (11) is a securing strap (12) for engaging the bottom end of the form element (54), thereby securing the template (10) to the form element (54). Attached to the form plate (11) is a means for suspending an anchor bolt (56) into poured concrete (53), preferably comprising a first and second primary support elements (18, 19) attached in cantilever fashion to the form plate (11). In the preferred embodiment (10), two parallel secondary support members (27, 28) are adjustably attached at each end to the first and second primary support members (18, 19).Type: GrantFiled: January 30, 1997Date of Patent: November 17, 1998Assignee: E-Z Anchor Bolt Template, Inc.Inventor: Kirby Weathersby
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Patent number: 5838847Abstract: The present invention provides improved optic switches in which the optic fibers and optical pathways need not move. Advantageously, the switches of the present invention generally rely on a combination of a moveable reflective element and at least one fixed collimating lens. The collimating lens typically expands the light signal from a single mode fiber to a substantially larger optic path. When the reflective element is disposed out of this large optic path, the light signals continue on to a first output fiber, often through another collimating lens. However, when the reflective element is disposed within the expanded optic path from the collimating lens, the signal is reflected back through that same collimating lens into an alternative output fiber which is parallel and in close proximity to the input fiber. Conveniently, the reflective element can move across the optic path without changing the position of the input or output fibers relative to each other.Type: GrantFiled: October 23, 1997Date of Patent: November 17, 1998Assignee: E-Tek Dynamics, Inc.Inventors: Jing-Jong Pan, Jing-Yu Xu, Charlene Jia-Ling Yang
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Patent number: 5836294Abstract: A bow sight (10) includes a transparent rear sight plate (12) that is adjustably carried by a slide bar (14). A slide bar (14) is mounted to a bow (16) by a receiving bracket (18). The bow sight (10) further includes at least one sight dot (22) that is clamped between a transparent front sight plate (20) and the transparent rear sight plate (12) such that each sight dot (22) is surrounded by a transparent, unobstructed viewing area. A gasket (30) is disposed about the periphery of the front sight plate (20) such that the area interior to the gasket (30) is substantially sealed when the front sight plate (20) is clamping the sight dots (22) against the rear sight plate (12). The front sight plate (20) is connected to the rear sight plate (12) by a plurality of screws (24). An adjustment tool (50) is also provided that allows an archer to adjust the location of the sight dots (22) without completely removing the screws (24).Type: GrantFiled: May 14, 1997Date of Patent: November 17, 1998Assignees: James E. Merritt, Larry J. Caudill, Dwight W. EtzwilerInventor: James E. Merritt
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Patent number: 5837353Abstract: A coating composition based on low molecular weight anhydrides having pendant, non-cyclic anhydride moieties, hydroxy-functional epoxy resin, and active catalyst wherein the coating composition cures at ambient conditions.Type: GrantFiled: January 7, 1997Date of Patent: November 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert J. Barsotti, Lee R. Harper
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Patent number: 5836530Abstract: A paper manufacturing conical-type pulp refiner comprising a support structure 1 for a framework 2 with a front lid 3, and defining a refining internal and conical chamber 4, with a single and axial exit 5 and a radial side exit 6. The refiner further including a refining set including a rotatory axis 7, with the end centered inside the refining chamber 4, where the refining set itself is mounted, composed by a stationary conical pair and by a rotatory conical pairs, the latter interlayed between those, forming two refining conical surfaces.Type: GrantFiled: January 29, 1997Date of Patent: November 17, 1998Assignee: Pilao S/A Maquinas e EquipamentosInventor: Milton Pilao
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Patent number: 5837078Abstract: A formable, weldable, VOC-free protective coating for use on a number of substrates including metal, wood, concrete, plastic, pipe and transportation equipment. The composition includes beeswax, ammonia, water and, optionally, paraffin. It may also include fillers, dyes, pigments and corrosion inhibitors, but does not require surfactants or stabilizers. The composition is particularly useful for protecting steel prior to welding. It can be removed without organic solvents.Type: GrantFiled: June 6, 1997Date of Patent: November 17, 1998Assignees: Molecular Architects, Darren E. LoweInventor: Darren E. Lowe
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Patent number: 5837622Abstract: A smooth elastic stretch fabric which is plain, satin or sateen woven with weft and/or warp yarns that include combination yarns which comprise a partially oriented synthetic crystalline polymer yarn combined with an elastomeric core wherein the smooth fabric (i.e., a non-crepe effect) is the results of a tight weave characterized by the sum of the reciprocal of the weft apparent fractional cover and the reciprocal of the warp apparent fractional cover (i.e., 1/WeAFC+1/WaAFC) being in the range between about 2.34 and about 3.11. The fabric is stretched, heat set and finished under particular conditions to provide the resultant fabric with an elastic stretch of more than about 10% and dimensions about equal to the as-woven dimensions.Type: GrantFiled: May 23, 1997Date of Patent: November 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Cathy Jane Hamilton, Becky June Lewis
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Patent number: 5836230Abstract: A hydraulic system with control valves that can control the movement of an actuator. The system has a first control valve and a second control valve that each contain solenoids that can switch the valves between open and closed positions. The valves are connected to a digital controller that can energize the solenoids. The controller controls the sequence of energizing such that when the first valve is opened the second valve is closed, and when the second valve is opened the first valve is closed. The valves are connected to the actuator so that the actuator moves in first direction when the first valve is opened and in a second opposite direction when the second valve is opened. The valves have an internal pressure balance that allows the solenoids to quickly switch into the open position using minimal power. The solenoids also have magnets that maintain the valves in the open position when power is terminated.Type: GrantFiled: August 27, 1996Date of Patent: November 17, 1998Assignee: Oded E. SturmanInventor: Oded E. Sturman
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Patent number: 5836532Abstract: An on-line system and method provides for monitoring the build up of yarn package diameter which detects winding defects, including missing or gained filaments, in multifilamentary yarn spinning processes. The system and method derive and compare yarn package denier for several yarn packages wound on a common winding apparatus. Diameter ranges are used to divide a yarn package into various measurement zones. Denier measurements are derived for each zone from two on-line, real-time inputs: yarn package speed and time to traverse the specified zone. Comparison of denier for diverse packages being simultaneously wound on one winding apparatus are compare to each other and determined to be within a specified tolerance. The apparatus operator is notified of out of tolerance measurements so that remedial action may be taken. The system also provides for constant and periodic updating of the denier measurement algorithm to account for process variations.Type: GrantFiled: December 5, 1996Date of Patent: November 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Dewey Edwin Thompson
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Patent number: 5836545Abstract: A model rotary wing aircraft is provided that includes a fuselage, a power plant, a main rotor, a tail rotor, and a drive apparatus. The power plant includes a passive cooling system to transfer heat produced by the power plant to the atmosphere. The passive cooling system consumes less than about five percent of the power produced by the power plant. The main rotor is driven by the power plant at a main rotor speed of rotation and the tail rotor is driven by the power plant at a tail rotor speed of rotation. The drive apparatus transfers power from the power plant to the main rotor and tail rotor to rotate the tail rotor at a tail rotor speed of rotation that is about three times greater than the main rotor speed of rotation to minimize the amount of power used by the tail rotor.Type: GrantFiled: October 11, 1996Date of Patent: November 17, 1998Assignee: Paul E. ArltonInventors: Paul E. Arlton, David J. Arlton, Paul Klusman
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Patent number: 5838446Abstract: An infrared laser is used to irradiate a sample, which preferably comprises a substrate, onto which an opaque basecoat is applied, which basecoat in turn is coated with a clearcoat. The laser pulse photoablates the basecoat at an interface between the basecoat and the clearcoat, and a blister forms in the clearcoat due to an increase in pressure from the ablation. The irradiation can be done a number of times on fresh areas of the sample and with increased laser energy. A critical energy value is determined which is the energy where a crack begins to propagate from the blister formed. Another laser is used to measure the amount of light reflected off the top surface of the blister which passes through the middle of an aperture. These values, along with others such as the size of the blister and the modulus of the clearcoat, are used to determine the adhesion strength at the interface of the basecoat and clearcoat.Type: GrantFiled: May 16, 1997Date of Patent: November 17, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Jeffrey Scott Meth, Stephen John Bennison
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Patent number: 5834088Abstract: A polyamide fibrous substrate having deposited on it an amount of a composition effective to impart stain-resistance comprising a water-soluble or water-dispersible alpha-olefin/maleic anhydride polymer or a mixture of said polymers, and processes for preparing the substrates. The maleic anhydride polymer is used either in hydrolyzed form or in the form resulting from reacting it with a lower alkyl alcohol so as to form an alpha-olefin/maleic acid monalkyl ester polymer.Type: GrantFiled: September 16, 1997Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Engelbert Pechhold
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Patent number: 5833807Abstract: A process is disclosed for making aqueous aramid dispersion and aramid sheets of improved uniformity by utilizing water with a pH of greater than 10.Type: GrantFiled: April 17, 1997Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Seshadri Ramachandran, Ronnie Aaron Allen
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Patent number: 5834617Abstract: The present invention relates to a process for selective dimerization of 2-pentenenitrile or mixtures of 2- and 3-pentenenitrile in the presence of a strong base to form 1,3-dicyano-2-ethyl-3-hexene.Type: GrantFiled: December 18, 1997Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: William Allen Beck, Frank Edward Herkes, David Page Higley
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Patent number: 5833294Abstract: A mobile automotive servicing facility (100) expands from a closed configuration for transport on highways and roads into a multibay service facility including multiple lifts (142) for servicing automobiles, a restroom (222), a customer waiting room/office area (144) and other amenities. In the closed configuration, the mobile automotive servicing facility resembles a double drop trailer. When deployed for maintenance on automobiles, outer side walls (120) of the facility are pivoted to extend the roof of the facility on both sides. Then inner side walls (122) are pivoted to extend the floor of the facility in an area under the extended roof. The extended floor (122) provides a ramp for ingress and egress of automobiles into the interior (128) of the facility. Contained within the interior of the facility are automobile lifts (142) and equipment for servicing the automobile, including oil change and chassis lubrication, filter replacement, wiper blade replacement, belt replacement and additional services.Type: GrantFiled: March 27, 1996Date of Patent: November 10, 1998Assignees: Barbara Bruck Williams, Brian E. WilliamsInventors: Brian E. Williams, Barbara Bruck Williams
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Patent number: 5833900Abstract: This invention relates to a system and process for modifying the resulting properties of a flash spun plexifilamentary film-fibril web and spunbonded nonwoven sheets made from such webs. In particular, the system includes specifically designed letdown chamber arrangements wherein the solution of polymer and spin agent transitions from a single phase solution to a two phase solution in the letdown chamber prior to spinning at the spin orifice. The method comprises altering the configuration of the letdown chamber to alter the properties of the web and the sheet products made therefrom.Type: GrantFiled: July 23, 1996Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Ralph A. Franke, Hyun S. Lim, Larry Ray Marshall
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Patent number: 5835322Abstract: A resettable ground fault circuit interrupter most advantageously suited for use with 400-Hz aircraft electrical systems and designed to interrupt the AC power between an aircraft electrical system and one or more electrical appliances being operated therein when a ground fault occurs. The circuit relies upon an imbalance sensor which is implemented in the preferred embodiment disclosed herein as a multi-turn coil of a transformer through which input wires connected to an AC input terminal are threaded so that an imbalance resulting from a ground fault can be detected by the coil. The signal generated by the coil as a result of such an imbalance is then amplified and applied to a thyristor, the conducting or non-conducting state of which determines whether or not the circuit is in a configuration for interrupting the AC signal or not interrupting the AC signal. Light emitting diodes are utilized to indicate the interruption status of the circuit.Type: GrantFiled: July 7, 1997Date of Patent: November 10, 1998Assignee: Donald E. SmithInventors: Donald E. Smith, John F. Rix, Ray E. Freudenberg, David C. Randolph
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Patent number: 5834262Abstract: An improved process for preparing glyoxylic acid comprising using the enzyme glycolate oxidase in the form of permeabilized microbial cell transformants selected from Aspergillus nidulans, Hansenula polymorpha, Pichia pastoris and Escherichia coli to oxidize glycolic acid with oxygen in an aqueous solution that includes an amine.Type: GrantFiled: February 23, 1996Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: David Leroy Anton, Robert DiCosimo
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Patent number: 5834119Abstract: A new polyester fiber is provided with an improved scalloped-oval cross-section, such as provides a surprising combination of advantages in downstream products, such as fabrics and garments.Type: GrantFiled: January 3, 1997Date of Patent: November 10, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Robert Kenneth Roop
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Patent number: 5830395Abstract: A process for making a substantially uniform composition of short aramid fibers and polymer wherein the fibers are provided with a significant moisture content to improve handling characteristics and are partially dried and opened by shear forces in an extruder before contact with the polymer in the extruder.Type: GrantFiled: August 12, 1997Date of Patent: November 3, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Giorgio P. Vercesi, Jean Pierre Jakob, Nicolas Cudre-Mauroux