Patents by Inventor Paul M. Lindberg
Paul M. Lindberg 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: 7946025Abstract: A method for making a magnetic linear motor shaft including thermal treatment to temporarily change the dimensions of various shaft components to allow tight interference fit assembly. The magnetic motor includes a core piece, annular magnets and pole pieces.Type: GrantFiled: March 31, 2010Date of Patent: May 24, 2011Assignee: Moog Inc.Inventors: Paul M. Lindberg, Philip G. Hollingsworth, James Carl Ellard, Leonard N. Wedman
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Patent number: 7865324Abstract: An apparatus and method for identifying the position of a magnetic shaft are provided. N field sensors are adjacently positioned at fixed locations relative to the shaft's periodic field, corresponding to 180/N relative phase shifts. A table provides N>2 predetermined signal models and a pre-identified position associated with each. An interpolator compares a representation of the N measured sensor signals to at least two predetermined models to generate a correction signal that provides another pre-identified position. The correction signal depends on N sensors for every position of the shaft. The correction signal is used to incrementally choose said another pre-identified position from the table as an approximate position of the shaft in an iterative process to find the minimum correction signal and identify the position.Type: GrantFiled: January 7, 2010Date of Patent: January 4, 2011Assignee: Moog Inc.Inventors: Paul M. Lindberg, Gary Schultze, Philip Hollingsworth
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Patent number: 7805270Abstract: An apparatus and method for identifying the position of a magnetic shaft are provided. N field sensors are adjacently positioned at fixed locations relative to the shaft's periodic field, corresponding to 180/N relative phase shifts. A table provides N>2 predetermined signal models and a pre-identified position associated with each. An interpolator compares a representation of the N measured sensor signals to at least two predetermined models to generate a correction signal that provides another pre-identified position. The correction signal depends on N sensors for every position of the shaft. The correction signal is used to incrementally choose said another pre-identified position from the table as an approximate position of the shaft in an iterative process to find the minimum correction signal and identify the position.Type: GrantFiled: February 5, 2007Date of Patent: September 28, 2010Assignee: Moog Inc.Inventors: Paul M. Lindberg, Gary Schultze, Philip Hollingsworth
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Publication number: 20100192358Abstract: A method for making a magnetic linear motor shaft including thermal treatment to temporarily change the dimensions of various shaft components to allow tight interference fit assembly. The magnetic motor includes a core piece, annular magnets and pole pieces.Type: ApplicationFiled: March 31, 2010Publication date: August 5, 2010Inventors: Paul M. Lindberg, Phillip G. Hollingsworth, James Carl Ellard, Leonard N. Wedman
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Publication number: 20100114518Abstract: An apparatus and method for identifying the position of a magnetic shaft are provided. N field sensors are adjacently positioned at fixed locations relative to the shaft's periodic field, corresponding to 180/N relative phase shifts. A table provides N>2 predetermined signal models and a pre-identified position associated with each. An interpolator compares a representation of the N measured sensor signals to at least two predetermined models to generate a correction signal that provides another pre-identified position. The correction signal depends on N sensors for every position of the shaft. The correction signal is used to incrementally choose said another pre-identified position from the table as an approximate position of the shaft in an iterative process to find the minimum correction signal and identify the position.Type: ApplicationFiled: January 7, 2010Publication date: May 6, 2010Inventors: Paul M. Lindberg, Gary Schultze, Philip Hollingsworth
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Publication number: 20080309187Abstract: A method for making a magnetic linear motor shaft including thermal treatment to temporarily change the dimensions of various shaft components to allow tight interference fit assembly. The magnetic motor includes a core piece, annular magnets and pole pieces.Type: ApplicationFiled: August 15, 2008Publication date: December 18, 2008Inventors: Paul M. Lindberg, Philip G. Hollingsworth
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Patent number: 7417343Abstract: Magnetic motor component sleeves (209) for motor components with the sleeves (209) having various helpful magnetic characteristics, such as high magnetic permeability; magnetic saturation; residual (or remanent) magnetization; anisotropic magnetic properties. Method for making a magnetic linear motor shaft (202), including thermal treatment to temporarily change the dimensions of various shaft components to allow tight assembly.Type: GrantFiled: January 25, 2002Date of Patent: August 26, 2008Assignee: California Linear Devices, Inc.Inventors: Paul M Lindberg, Philip G. Hollingsworth, James Carl Ellard, Leonard N. Wedman
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Patent number: 6603224Abstract: A stator assembly for a linear motor includes a plurality of interleaved modular pieces. Prewound coils and spacer pieces are alternately provided along the length of the stator. The spacer pieces have a generally trapezoidal cross section, complementary to a trapezoidal cross section of the prewound coils. Rims may be provided at an inner region of the spacer pieces. At the outer edge of the spacer pieces is provided a wall which mates with the identical wall on an adjacent spacer piece. The spacer piece may have radial slots cut entirely and/or partially through the piece in order to reduce the current and eddy currents induced when the prewound coils are energized.Type: GrantFiled: December 8, 1999Date of Patent: August 5, 2003Assignee: California Linear Devices, Inc.Inventors: Philip Hollingsworth, James Carl Ellard, Paul M. Lindberg, Duncan Rea Williams
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Patent number: 6289575Abstract: A stator assembly has a pair of end holes leading to a hollow region which has a larger diameter than the end holes. The assembly is manufactured around an elongated pole having a diameter equal to the end holes, which is surrounded by a temporary sleeve whose thickness fills the gap between the pole and the inner wall of the hollow region. The pieces of the assembly are placed onto the pole such that the sleeve lies within the hollow region, to thereby align them correctly with one another. After the pieces are secured to each other, the pole is removed, leaving the sleeve within the hollow region, and then the sleeve is removed. The sleeve may be flexible in order to expedite its removal from the hollow, and also may be of a magnetic material that is kept in place by magnetic forces generated by the stator assembly or by the pole.Type: GrantFiled: December 8, 1999Date of Patent: September 18, 2001Assignee: California Linear Devices, Inc.Inventors: Philip Hollingsworth, James Carl Ellard, Paul M. Lindberg
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Patent number: 5640763Abstract: A panel of a plurality of circuits to be separated into individual circuits, comprises a panel of conductive foil and insulator laminate formed into a plurality of separate circuits, a shear trace disposed between adjacent circuits, and a pull tab at one end of each of said the shear traces. In the depanelizing operation, the shear traces are pulled for cutting through the insulator to remove the corresponding circuits from the panel.Type: GrantFiled: June 6, 1995Date of Patent: June 24, 1997Assignee: Pulse Engineering, Inc.Inventor: Paul M. Lindberg
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Patent number: 5534838Abstract: A low profile transformer comprises a support member for supporting a coil winding, a first elongated conductive tape forming at least one conductor having lead terminals formed integral therewith formed into a first coil of multiple turns, a second elongated conductive tape having lead terminals formed integral therewith forming at least one conductor formed into a second coil of at least one turn interleaved with the first coil, and each terminal lead of each of the tapes extending from the support member and having a portion disposed at a base of the transformer for engagement and surface bonding to a PC board.Type: GrantFiled: August 5, 1993Date of Patent: July 9, 1996Assignee: Pulse Engineering, Inc.Inventor: Paul M. Lindberg
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Patent number: 5260548Abstract: An apparatus which provides selectively either constant power, constant current or constant voltage to the heating elements of the thermods. The soldering system power supply apparatus includes devices for monitoring and controlling individual temperature profiles of each soldering thermod heating element. A computerized arrangement controls the power to each thermod in a very accurate manner. For the purpose of adjusting the power to each thermod element as a function of its temperature and the desired temperature profile, a set of temperature sensors are coupled to each of the thermod elements for measuring its temperature. Similarly, a set of energy sensors are also coupled to each of the thermod elements for detecting the amount of electrical energy supplied to each thermod.Type: GrantFiled: February 23, 1990Date of Patent: November 9, 1993Assignee: Toddco General, Inc.Inventors: Thomas Todd, Paul M. Lindberg
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Patent number: 4860185Abstract: A method and apparatus for providing uninterrupted DC and AC power for a desktop personal computer is described. The source of the uninterrrupted DC and AC power is derived from an integrated power supply that is sized to fit within the existing housings of most desktop personal computers as a plug-in replacement for existing power supplies. A high degree of efficiency is obtained using an integrated design with the main power conversion derived from a DC/DC dual primary resonant converter. The main primary of the resonant converter is driven from a high voltage DC bus which is supplied from AC mains when available. When the AC mains is unavailable, the second primary of the DC/DC dual primary resonant converter receives power from a low voltage battery source.Type: GrantFiled: August 21, 1987Date of Patent: August 22, 1989Assignee: Electronic Research Group, Inc.Inventors: David C. Brewer, Conrad P. Lindberg, Paul M. Lindberg