Patents Represented by Attorney, Agent or Law Firm Hahn, Loeser + Parks LLP
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Patent number: 6822713Abstract: An optical compensation film for a liquid crystal display is provided wherein the film is a polymer that is capable of producing light induced anisotropy. The film is irradiated with light to form an optical axis or axes.Type: GrantFiled: November 27, 2000Date of Patent: November 23, 2004Assignee: Kent State UniversityInventors: Oleg Yaroshchuk, Yuriy Reznikov, Jack R. Kelly, Liang-Chy Chien, Tatiana Sergan
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Patent number: 6817470Abstract: The present invention discloses a disposable, collapsible sleeve holder for germ-free and bacteria-free handling and operation of remote controls and similar devices.Type: GrantFiled: October 11, 2001Date of Patent: November 16, 2004Inventor: Michael J. Goldberg
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Patent number: 6762610Abstract: The electrical resistance aging properties of a coating intended for use on a base material in a primary alkaline cell battery are be tested by manufacturing at least one test device, measuring a first and a second electrical resistance across two distinct circuits in the device, and calculating the effective electrical resistance at the interface between a cathode mix and a coated surface of the base material as the difference between the two electrical resistances. By storing the test device at temperatures above ambient, the aging properties of the coated surface resistance are estimated by repeating the electrical resistance measurements at predetermined time intervals at ambient temperature.Type: GrantFiled: July 21, 2000Date of Patent: July 13, 2004Assignee: Thomas Steel Strip CorporationInventors: George H. Brilmyer, G. Robert Miller
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Patent number: 6740560Abstract: The aim of the invention is to provide for a bipolar transistor and a method for producing the same. Said bipolar transistor should have minimal base-emitter capacities and very good high frequency characteristics. The static characteristics, especially the base current ideality and the low frequency noise, of a bipolar transistor with weakly doped cap layer (116) should not significantly deteriorate and process complexity should not increase. According to the invention, the problem is solved by inserting a special doping profile in a cap layer (116) (cap doping) which has been produced epitaxially. A minimal base emitter capacity and very good high frequency characteristics can be obtained by means of said doping profile. At the same time, the efficiency of the generation/recombination active boundary surface between the cap layer (116) and the isolator (117) in the polysilicon overlapping area in the relevant working area of the transistor is reduced and the base current ideality is improved.Type: GrantFiled: September 17, 2001Date of Patent: May 25, 2004Assignee: Institut fuer Halbleiterphysik Frankfurt (Oder) GmbHInventors: Bernd Heinemann, Karl-Ernst Ehwald, Dieter Knoll
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Patent number: 6739268Abstract: A coil car has a pair of deep side sills and a trough structure mounted to, and suspended between, the deep side sills for carrying coils. The side sills extend between the rail car trucks and act as a pair of deep side beams for carrying vertical loads. The deep side sills are arranged to extend above and below the center sill of the coil car to give vertical stiffness to the coil car. The top chord members of the side sills are outwardly splayed relative to the bottom chord members of the side sills. Cross-bearers extend outwardly and away from the center sill to attach to the side sills. The trough structure has three parallel, longitudinally extending troughs—a central trough lying between two laterally outboard outer troughs. Each trough is shaped to cradle steel coils, or other similar loads, between its inwardly and downwardly sloping shoulder plates. The shoulder plates are lined with cushioning to buffer coils during loading or travel.Type: GrantFiled: December 15, 2000Date of Patent: May 25, 2004Assignee: National Steel Car LtdInventors: Mohammed Al-Kaabi, Ilario A. Coslovi
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Patent number: 6726713Abstract: The invention concerns a method and a device for crimping a stent onto a balloon of a balloon catheter. The stent is arranged on the balloon so that an outside surface of the balloon and an inside surface of the stent contact each other to form a combination of balloon and stent. The combination is compressed to crimp the stent onto the balloon. The invention is distinguished in that the combination is compressed to varying degrees along the longitudinal axis of the combination.Type: GrantFiled: August 7, 2001Date of Patent: April 27, 2004Assignee: Biotronik Mess- und Therapiegeraete GmbH & Co. Ingenieurbuero BerlinInventors: Max Schaldach, Detlef Behrend, Klaus-Peter Schmitz, Heinz Mueller, Daniel Lootz, Dietmar Esperschidt
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Patent number: 6709207Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented web work structure for carrying vertical shear loads between the top truss and the center sill and decking. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a deep upper beam structure that has downwardly extending skirts. The skirts provide an extended bearing area upon against which bundled loads can be secured. The skirts are inwardly reinforced to discourage deflection between adjacent upright members of the vertical web work.Type: GrantFiled: August 4, 2000Date of Patent: March 23, 2004Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 6710274Abstract: A decorative electrical switch actuator (50, 150) acts in combination with a conventional light switch (10) having a toggle switch arm (12) mounted in a base such that when the toggle switch arm pivots from a first position to a second position, electrical contacts in the base are moved from a contacting condition to a non-contacting condition or vice versa. The decorative switch actuator has a face plate (52), an actuating assembly (54), and a cap assembly (56, 156). The actuating assembly is mounted on the face plate, and has a means (106) for receiving the toggle switch arm such that a linear movement of the receiving means moves the toggle switch arm from the first to the second position or vice versa. The cap assembly (56, 156) is mounted on the face plate, and is structurally independent of the actuator.Type: GrantFiled: June 14, 2002Date of Patent: March 23, 2004Inventors: Chris Whetzel, Eric Von Fossen
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Patent number: 6708063Abstract: An implantable cardiac pacemaker (1) comprising a control device (2) including a position detector connected to a movement sensor, wherein the position detector has a classification device (23) for recognizing short movements. Preferably the position detector has a memory device (25).Type: GrantFiled: December 18, 2000Date of Patent: March 16, 2004Assignee: Biotronik Mess- und Therapiegeraete GmbH & Co. IngernieurbueroInventors: Gerald Czygan, Martin Lang
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Patent number: 6703839Abstract: A high-voltage oscillating circuit (I) is connected in parallel with an auxiliary circuit-breaker (Ba) by firing a switching spark gap (SGhv) and the oscillating current (ihv) is superimposed on the high-current (ihc) with opposite polarity just before the high-current zero crossing. The spark gap (SGhc) is fired at the artificial current zero, causing: short-circuiting of the high-current source (a), series connection of the high-voltage oscillating circuit with the test circuit-breaker (Bt), oscillating current from the auxiliary circuit-breaker is transferred with constant parameters to the test circuit-breaker there—in following the eliminated high current. Transient high voltage follows the zero crossing of the synthetic current continuously.Type: GrantFiled: May 17, 2002Date of Patent: March 9, 2004Inventor: Ernst Slamecka
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Patent number: 6704596Abstract: An electrically active medical implant has a circuit (5), at least one first battery (1) to supply low current, and a second battery (2) to supply high current into the circuit (5), and a control device (4) designed to disconnect the at least one first battery (1) from circuit (5), and to connect second battery (2) to circuit (5), where a capacitor (3) connected in a parallel arrangement with battery (1), where the capacitor can be charged by the first battery both during a first circuit status, during which the first battery is connected to circuit (5), and during a second circuit status, during which circuit (5) is connected only to second battery (2), where control device (4) again disconnects second battery (2) from circuit (5) at the end of the second circuit status, and connects the parallel arrangement consisting of first battery (1) and capacitor (3) to circuit (5) for further energy supply.Type: GrantFiled: September 25, 2001Date of Patent: March 9, 2004Assignee: Biotronik Mess- und Therapiegeraete GmbH & Co. Ingenieurbuero BerlinInventors: Dennis Digby, Max Schaldach
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Patent number: 6691557Abstract: The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method comprising a particle analysis of suspended particles and sediment contained in the liquid. The analysis method can further comprise a chemical analysis of the insulating liquid. This analysis results in profiles of the liquid that give an accurate indication of the maintenance state of the electric device.Type: GrantFiled: October 10, 2001Date of Patent: February 17, 2004Inventor: Norman Rice
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Patent number: 6690971Abstract: A device for the therapy of supraventricular and ventricular bradycardial and tachycardial disrhythmias and/or for influencing the heart pumping force, including: electrodes for electrical and/or magnetic stimulation of parasympathetic nerves which innervate the sinus node, the atria, the atrioventricular node or the ventricles; electrodes for electrical and/or magnetic stimulation of the atria and ventricles and/or for ventricular cardioversion/defibrillation; a device for producing electrical and/or magnetic stimulation pulses which are passed to the electrodes; and a device for detecting the rate at which the human atria and ventricles beat, wherein said device measures atrial and ventricular contractions.Type: GrantFiled: November 30, 2000Date of Patent: February 10, 2004Assignee: Biotronik Mess - und Therapiegeraete GmbH & Co. Ingenieurbuero BerlinInventors: Patrick Schauerte, Max Schaldach
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Patent number: 6684094Abstract: The invention concerns an instrument for medical purposes, comprising a housing (8) which can be introduced into an animal or human body, a movably mounted electromagnetic or acoustic transducer unit (7) arranged in the housing (8), preferably in the distal end thereof, for producing electromagnetic or acoustic waves, in particular ultrasonic waves, and a drive (1, 2) for driving the transducer unit (7), wherein the transducer unit (7) is connected to at least one first contact element (9a) and arranged on the housing (8) is at least one second contact element (8a, 8b; 12a through 12j) provided for sliding contact with the first contact element (9a), wherein the first and second contact elements (9a and 8a, 8b; 12a through 12j) jointly form a radial mounting for the transducer unit (7).Type: GrantFiled: March 18, 2002Date of Patent: January 27, 2004Inventors: Heinz Lehr, Gerhard Niederfeld
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Patent number: 6673641Abstract: A process for the production of contacts for electrically operated II/VI semiconductor structures (for example laser diodes). The contact materials palladium and gold hitherto used in relation to electrically operated II/VI semiconductor lasers are distinguished by a relatively great, not purely ohmic specific contact resistance in relation to the II/VI cover layer. The consequentially necessary higher operating voltages result in the unnecessary generation of heat and thus substantially accelerate degradation of the entire laser structure. That effect causes a limitation in terms of the service life of II/VI semiconductor laser diodes. The invention permits the operation of semiconductor laser diodes with lower operating voltages. The II/VI semiconductor laser diodes produced with our invention are distinguished by a longer service life. That permits inter alia commercial use of semiconductor laser diodes in the blue-green spectral range.Type: GrantFiled: April 24, 2002Date of Patent: January 6, 2004Assignee: Technische Universitaet BerlinInventors: Matthias Strassburg, Oliver Schulz, Udo W. Pohl, Dieter Bimberg
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Patent number: 6669448Abstract: A method for controlling the operation of one or more electrically-operated pumps (11, 12) to pump a liquid from a well or sump (10) which, in use, receives a substantially continuous inflow of said liquid, characterized in that the method includes the step of starting or stopping each pump in relation to the approach of a change of tariff for the electricity supplied for the operation of each said pump (11, 12).Type: GrantFiled: December 12, 2001Date of Patent: December 30, 2003Assignee: Pulsar Process Measurement Ltd.Inventors: Keith Beard, Paul Lewis, Steven Lycett, Sang Tran
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Patent number: D492000Type: GrantFiled: May 2, 2003Date of Patent: June 22, 2004Inventors: Edward Festa, Jeffrey Festa, Len Moore
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Patent number: D496198Type: GrantFiled: June 30, 2003Date of Patent: September 21, 2004Assignee: Suncoast Aluminum Furniture, Inc.Inventors: Raj D. Varshney, Rebecca M. Sturdivant
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Patent number: D496199Type: GrantFiled: June 30, 2003Date of Patent: September 21, 2004Assignee: Suncoast Aluminum Furniture, Inc.Inventors: Raj D. Varshney, Rebecca M. Sturdivant
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Patent number: D497491Type: GrantFiled: August 20, 2003Date of Patent: October 26, 2004Assignee: Suncoast Aluminum Furniture, Inc.Inventor: Robert A. Pluer