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).

  • Publication number: 20080036215
    Abstract: 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: Application
    Filed: July 18, 2007
    Publication date: February 14, 2008
    Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
  • Publication number: 20080030085
    Abstract: 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: Application
    Filed: July 30, 2007
    Publication date: February 7, 2008
    Applicant: Danotek Motion Technologies, Inc.
    Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
  • Publication number: 20080030088
    Abstract: 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: Application
    Filed: July 18, 2007
    Publication date: February 7, 2008
    Inventors: Daniel Gizaw, David Erdman, Joseph Miller, Girma Desta
  • Publication number: 20080021037
    Abstract: 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: Application
    Filed: September 26, 2007
    Publication date: January 24, 2008
    Inventors: Vladimar Beylin, Anthony Blackburn, David Erdman, Peter Toogood
  • Publication number: 20070292084
    Abstract: 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: Application
    Filed: June 15, 2007
    Publication date: December 20, 2007
    Inventors: Michael Gurreri, Douglas Rohde, Eric Hopkins, David Erdman
  • Publication number: 20070127873
    Abstract: 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 cam
    Type: Application
    Filed: November 2, 2006
    Publication date: June 7, 2007
    Applicant: Tyco Electronics Corporation
    Inventors: Randy Manning, Lewis Sauerwein, Takehio Hayashi, David Erdman
  • Publication number: 20060159399
    Abstract: 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 th
    Type: Application
    Filed: March 8, 2004
    Publication date: July 20, 2006
    Inventors: David Erdman, Michael Gurreri
  • Publication number: 20060154529
    Abstract: 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: Application
    Filed: January 11, 2006
    Publication date: July 13, 2006
    Inventors: David Erdman, Douglas Rohde, Robert Briggs
  • Patent number: 7052188
    Abstract: 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, a
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: May 30, 2006
    Inventors: Randy Marshall Manning, Soren Grinderslev, David Erdman, Mike Gurreri
  • Publication number: 20060063436
    Abstract: 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: Application
    Filed: October 20, 2005
    Publication date: March 23, 2006
    Applicant: Tyco Electronics Corporation
    Inventors: Michael Gurreri, David Erdman, Bryan Edwards, Eric Hopkins, David Baechtle
  • Publication number: 20060002662
    Abstract: 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: Application
    Filed: June 24, 2005
    Publication date: January 5, 2006
    Applicant: Tyco Electronics Corporation
    Inventors: Randy Manning, David Erdman, Michael Gurreri
  • Publication number: 20050059670
    Abstract: 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: Application
    Filed: July 6, 2004
    Publication date: March 17, 2005
    Inventors: Vladimar Beylin, Anthony Blackburn, David Erdman, Peter Toogood
  • Publication number: 20040131316
    Abstract: 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, a
    Type: Application
    Filed: October 2, 2003
    Publication date: July 8, 2004
    Inventors: Randy Marshall Manning, Soren Grinderslev, David Erdman, Mike Gurreri
  • Patent number: 6722015
    Abstract: 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: Grant
    Filed: August 11, 2001
    Date of Patent: April 20, 2004
    Assignee: General Electric Company
    Inventors: Robert Sirois, James J. Holich, Dennis P. Bobay, Robert K. Hollenbeck, David Erdman
  • Patent number: 6685362
    Abstract: 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: Grant
    Filed: March 26, 2001
    Date of Patent: February 3, 2004
    Assignee: Tyco Electronics Corporation
    Inventors: Matthew Burkholder, David Erdman, Michael Gurreri
  • Patent number: 6545154
    Abstract: 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: Grant
    Filed: September 5, 2001
    Date of Patent: April 8, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Achim Hupperts, Mark Wilhelm Drewes, David Erdman, Reinhard Lantzsch
  • Publication number: 20030040626
    Abstract: 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: Application
    Filed: September 5, 2001
    Publication date: February 27, 2003
    Inventors: Achim Hupperts, Mark Wilhelm Drewes, David Erdman, Reinhard Lantzsch
  • Publication number: 20030029023
    Abstract: 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: Application
    Filed: August 11, 2001
    Publication date: February 13, 2003
    Inventors: Robert Sirois, James J. Holich, Dennis P. Bobay, Robert K. Hollenbeck, David Erdman
  • Patent number: 6372916
    Abstract: 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: Grant
    Filed: December 28, 2000
    Date of Patent: April 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Lantzsch, Manfred Jautelat, Achim Hupperts, David Erdman
  • Patent number: 6353114
    Abstract: 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: Grant
    Filed: December 27, 2000
    Date of Patent: March 5, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Jautelat, David Erdman