Patents by Inventor David Erdman
David Erdman 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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Publication number: 20080036215Abstract: The present invention is a slow-speed, large-scale generator and assembly procedure for that generator. The magnet is partitioned and assembled piece-by-piece after the rotor and stator have been attached. Guides are used to arrange the magnets so as to give skew to the overall magnet assembly. The shoes of the teeth of the stator have subteeth. The generator is located in the middle of the height of the tower, rather than at the top. The invention makes manufacturing easier and has reduced cogging torque, making large-scale, slow-speed operation more feasible. The efficiency and thus reduced weight of the direct-drive allows the device to be located such that a tower can be smaller and easier to construct and have fewer components.Type: ApplicationFiled: July 18, 2007Publication date: February 14, 2008Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
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Publication number: 20080030085Abstract: The invention is a generator and cooling mechanism. The generator includes a rotor comprising a shaft with a skewed alignment of magnets on a ring, a stator of toothed laminations with coils wound around the teeth, and a housing with cooling chambers. The housing has annular subchambers arranged successively along the length of the generator in such a way that cooling fluid must flow to the opposite side of the generator to pass into the next chamber. Because the housing is highly heat conductive, this structure of annular subchambers increases the uniformity of the fluid temperature.Type: ApplicationFiled: July 30, 2007Publication date: February 7, 2008Applicant: Danotek Motion Technologies, Inc.Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
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Publication number: 20080030088Abstract: The present invention is an integrated brushless permanent-magnet motor with the circuit board controller in the same chamber as the rotor and stator. Including the circuit board controller in the same chamber as the rotor and stator allows for a more compact motor. The motor may include fins on its housing exterior such that the heat generated by the motor flows out of the housing through the fins, cooling the motor. The invention may also include features designed to reduce cogging.Type: ApplicationFiled: July 18, 2007Publication date: February 7, 2008Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
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Publication number: 20080021037Abstract: Disclosed are polymorphs of the isethionate salt of 6-acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one, which is a selective cyclin-dependent kinase 4 (CDK4) inhibitor useful for treating inflammation and cell proliferative diseases such as cancer and restenosis.Type: ApplicationFiled: September 26, 2007Publication date: January 24, 2008Inventors: Vladimar Beylin, Anthony Blackburn, David Erdman, Peter Toogood
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Publication number: 20070292084Abstract: An optical connector which is suitable for connection to jacketed cable includes a housing and a ferrule assembly. The ferrule assembly includes a front portion having a first geometry, and the housing includes a receiving portion having a second geometry that mates with the first geometry to prevent rotation of the ferrule assembly relative to the housing. A spring biases the ferrule assembly forward to assist mating of the first and second geometries.Type: ApplicationFiled: June 15, 2007Publication date: December 20, 2007Inventors: Michael Gurreri, Douglas Rohde, Eric Hopkins, David Erdman
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Publication number: 20070127873Abstract: A clamping assembly having a top and bottom and front and back orientation, at least one optical axis, and a pre-actuated state in which a fiber is not secured to the clamping assembly and a post-actuated state in which a fiber is secured to the clamping assembly, the clamping assembly comprising: (a) a housing; (b) a platform disposed in the housing and being fixed therein both radially and axially, the platform defining a fiber-receiving channel along the optical axis to receive at least one fiber, at least a portion of the fiber-receiving channel being accessible from the top; (c) a first cam member disposed in the housing above and adjacent to the fiber-receiving channel, the first cam member being radially actuateable within the housing, the first cam member having a first cam surface; (d) a second cam member disposed in the housing and axially slidable therein, the second cam member having a second cam surface adjacent the first cam surface and configured such that, upon forward motion of the second camType: ApplicationFiled: November 2, 2006Publication date: June 7, 2007Applicant: Tyco Electronics CorporationInventors: Randy Manning, Lewis Sauerwein, Takehio Hayashi, David Erdman
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Publication number: 20060159399Abstract: An optical connector assembly comprising (a) a plurality of identical connectors, each connector being connected to a jacketed optical cable, each connector comprising a generally rectangular housing having a top, a bottom and two sides, and having a plug end for insertion into a mating receptacle and a cable end for receiving an optical cable, the housing having a recess along each of the two sides; and (b) a clip holding the plurality of connectors together in a side-by-side relationship, the clip having a bottom portion, first and second end walls extending perpendicularly from the bottom portion, and one or more intermediate portions extending perpendicularly from the bottom portion between the first and second end walls, each of the one or more intermediate portions having a first face facing the first end wall and a second face facing the second end wall, wherein the first end wall and a first face of one of the one or more intermediate portions are received in the recess of one of the connectors and thType: ApplicationFiled: March 8, 2004Publication date: July 20, 2006Inventors: David Erdman, Michael Gurreri
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Publication number: 20060154529Abstract: An adapter includes an integrally-molded metal housing defining a first port axially aligned with a second port, each adapted to receive an optical connector plug having a cylindrical ferrule. A junction portion defines a cylindrical axial passage between the ports and has a first end adjacent the first port and a second end adjacent the second port. The first end of the junction portion has a ridge portion extending inwardly, thereby restricting a diameter of the passage at the first end. An alignment sleeve is disposed in the passage, the alignment sleeve having a diameter suitable for receiving a ferrule of each optical connector plug and axially aligning the ferrules to effect optical coupling of fibers contained in the ferrules. An end cap is disposed at the second end and is engaged with the junction portion to restrict the diameter of the passage at the second end, thereby securing the sleeve in the passage.Type: ApplicationFiled: January 11, 2006Publication date: July 13, 2006Inventors: David Erdman, Douglas Rohde, Robert Briggs
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Patent number: 7052188Abstract: An optical fiber assembly kit (7) comprising: (a) a ferrule assembly (1) having at least one bore hole to receive an optical fiber and a first contact surface; (b) a positioning member (2) having a second contact surface and an aperture adapted to receive the ferrule assembly (1), wherein the first contact surface and the aperture are configured to form a first interface in which a first radial position relationship between the ferrule assembly (1) and the positioning member (2) is maintained; (c) a housing having an interior cavity adapted for receiving the positioning member (2) and the ferrule assembly (1), the housing and the second surface of the positioning member (2) are configured to form a second interface such that a second radial position relationship between the positioning member (2) and the housing is maintained, wherein one of the first or second radial position relationships is adjustable in increments less than a quarter rotation, and the other radial position relationship is predetermined, aType: GrantFiled: April 2, 2002Date of Patent: May 30, 2006Inventors: Randy Marshall Manning, Soren Grinderslev, David Erdman, Mike Gurreri
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Publication number: 20060063436Abstract: A network comprising: (a) a plurality of different receptacles for facilitating an optical connection to different information networks requiring different access authorization, each different receptacle coupled to one and only one different information network, each receptacle having an inner surface with a first geometry, the first geometry comprising at least a slot, a certain number of receptacles having different first geometries in which the slots are in different positions; and (b) a plurality of different plugs for coupling with the different receptacles, each plug having a second geometry, the second geometry comprising at least a key in a certain position, the certain number of plugs having different second geometries in which the keys are in different positions, each different first geometry corresponding to one and only one second geometry such that the plugs and receptacles of corresponding first and second geometries are mating pairs.Type: ApplicationFiled: October 20, 2005Publication date: March 23, 2006Applicant: Tyco Electronics CorporationInventors: Michael Gurreri, David Erdman, Bryan Edwards, Eric Hopkins, David Baechtle
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Publication number: 20060002662Abstract: A small form factor, field-installable optical connector comprising: (a) a small form factor connector housing having a front and back orientation; (b) a ferrule disposed in the connector housing; (c) a clamping assembly disposed in the connector housing rearward of the ferrule and adapted to receive and retain a terminating fiber; (d) a resilient member disposed in the connector housing; and (e) a rear body disposed at the rear end of the connector housing and configured to provide a backstop against which the resilient member can press to bias the ferrule and the clamping assembly forward.Type: ApplicationFiled: June 24, 2005Publication date: January 5, 2006Applicant: Tyco Electronics CorporationInventors: Randy Manning, David Erdman, Michael Gurreri
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Publication number: 20050059670Abstract: Disclosed are polymorphs of the isethionate salt of 6-acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one, which is a selective cyclin-dependent kinase 4 (CDK4) inhibitor useful for treating inflammation and cell proliferative diseases such as cancer and restenosis.Type: ApplicationFiled: July 6, 2004Publication date: March 17, 2005Inventors: Vladimar Beylin, Anthony Blackburn, David Erdman, Peter Toogood
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Publication number: 20040131316Abstract: An optical fiber assembly kit (7) comprising: (a) a ferrule assembly (1) having at least one bore hole to receive an optical fiber and a first contact surface; (b) a positioning member (2) having a second contact surface and an aperture adapted to receive the ferrule assembly (1), wherein the first contact surface and the aperture are configured to form a first interface in which a first radial position relationship between the ferrule assembly (1) and the positioning member (2) is maintained; (c) a housing having an interior cavity adapted for receiving the positioning member (2) and the ferrule assembly (1), the housing and the second surface of the positioning member (2) are configured to form a second interface such that a second radial position relationship between the positioning member (2) and the housing is maintained, wherein one of the first or second radial position relationships is adjustable in increments less than a quarter rotation, and the other radial position relationship is predetermined, aType: ApplicationFiled: October 2, 2003Publication date: July 8, 2004Inventors: Randy Marshall Manning, Soren Grinderslev, David Erdman, Mike Gurreri
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Patent number: 6722015Abstract: A method and apparatus for progressively cutting, piercing, bending, stacking, and interlocking lamination assemblies from a strip of laminate. The stacked laminations are mechanically interlocked with a staple-style interlock that secures all the laminations in the stack together. All the steps in the process of forming, stacking and interlocking are done within the tool and die assembly, eliminating the need for additional equipment to stack and interlock assemblies.Type: GrantFiled: August 11, 2001Date of Patent: April 20, 2004Assignee: General Electric CompanyInventors: Robert Sirois, James J. Holich, Dennis P. Bobay, Robert K. Hollenbeck, David Erdman
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Patent number: 6685362Abstract: An adapter comprising: (a) a housing having a front and a rear orientation and walls to define a port configured for receiving a mating plug assembly and an opening through the rear of the port, the walls comprising at least two opposing walls; and (b) two shutters, each shutter having a proximate end and a distal end, each shutter being attached at its proximate end to one of the opposing walls with its distal end extending rearwardly, the shutters being biased inwardly toward the interior of the port such that, when the adapter is unmated, the shutters meet at an angle &agr; to at least partially shield the opening and, when the adapter is mated with a plug, the plug contacts the shutters and pivots them outwardly.Type: GrantFiled: March 26, 2001Date of Patent: February 3, 2004Assignee: Tyco Electronics CorporationInventors: Matthew Burkholder, David Erdman, Michael Gurreri
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Patent number: 6545154Abstract: The invention relates to a process for preparing N-(5-amino-2-cyano-4-fluoro-phenyl)-sulphonamides in which, in a first step, 2-amino-4,5-difluoro-benzonitrile is reacted with sulphonyl halides in the presence of an acid acceptor and in the presence of a diluent at temperatures between 0° C. and 150° C. and, in a second step, the N-(2-cyano-4,5-difluoro-phenyl)-sulphonamides and/or N-(2-cyano-4,5-difluoro-phenyl)-sulphonimides obtained in the first step are as pure substances or as mixtures with ammonia in the presence of a diluent reacted at a temperature between 100° C. and 200° C. The invention furthermore relates to novel intermediates of the process.Type: GrantFiled: September 5, 2001Date of Patent: April 8, 2003Assignee: Bayer AktiengesellschaftInventors: Achim Hupperts, Mark Wilhelm Drewes, David Erdman, Reinhard Lantzsch
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Publication number: 20030040626Abstract: The invention relates to a process for preparing N-(5-amino-2-cyano-4-fluoro-phenyl)-sulphonamides in which, in a first step, 2-amino-4,5-difluoro-benzonitrile is reacted with sulphonyl halides in the presence of an acid acceptor and in the presence of a diluent at temperatures between 0° C. and 150° C. and, in a second step, the N-(2-cyano-4,5-difluoro-phenyl)-sulphonamides and/or N-(2-cyano-4,5-difluoro-phenyl)-sulphonimides obtained in the first step are as pure substances or as mixtures with ammonia in the presence of a diluent reacted at a temperature between 100° C. and 200° C. The invention furthermore relates to novel intermediates of the process.Type: ApplicationFiled: September 5, 2001Publication date: February 27, 2003Inventors: Achim Hupperts, Mark Wilhelm Drewes, David Erdman, Reinhard Lantzsch
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Publication number: 20030029023Abstract: A method and apparatus for progressively cutting, piercing, bending, stacking, and interlocking lamination assemblies from a strip of laminate. The stacked laminations are mechanically interlocked with a staple-style interlock that secures all the laminations in the stack together. All the steps in the process of forming, stacking and interlocking are done within the tool and die assembly, eliminating the need for additional equipment to stack and interlock assemblies.Type: ApplicationFiled: August 11, 2001Publication date: February 13, 2003Inventors: Robert Sirois, James J. Holich, Dennis P. Bobay, Robert K. Hollenbeck, David Erdman
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Patent number: 6372916Abstract: According to a novel process, it is possible to prepare triazolinethione derivatives of the formula in which R1 and R2 are each as defined in the description by a) reacting hydrazine derivatives of the formula with carbonyl compounds of the formula in which R3 and R4 are each as defined in the description with potassium thiocyanate, sodium thiocyanate or ammonium thiocyanate, if appropriate in the presence of a diluent and if appropriate in the presence of an acid, and b) reacting the resulting triazolidinethione derivatives of the formula with formic acid, if appropriate in the presence of a catalyst and if appropriate in the presence of a diluent. The triazolidinethione derivatives of the formula (V) are novel.Type: GrantFiled: December 28, 2000Date of Patent: April 16, 2002Assignee: Bayer AktiengesellschaftInventors: Reinhard Lantzsch, Manfred Jautelat, Achim Hupperts, David Erdman
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Patent number: 6353114Abstract: According to a novel process, triazolinethione derivatives of the formula in which R1 and R2 are each as defined in the description, can be prepared by a) reacting hydrazine derivatives of the formula with formaldehyde and thiocyanate of the formula X—SCN (III), in which X represents sodium, potassium or ammonium, in the presence of a diluent and if appropriate in the presence of an acid, and b) reacting the resulting triazolidinethiones of the formula either &agr;) with oxidizing agents, if appropriate in the presence of a catalyst and in the presence of a diluent, or &bgr;) with formic acid. The triazolidinethiones of the formula (IV) are novel.Type: GrantFiled: December 27, 2000Date of Patent: March 5, 2002Assignee: Bayer AktiengesellschaftInventors: Manfred Jautelat, David Erdman