Patents by Inventor Richard D. Sedgewick
Richard D. Sedgewick 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: 5998890Abstract: A linear motor comprising a DC magnetic field of alternating polarity arranged in a longitudinal axis, a coil assembly located substantially in a plane parallel to and immersed in the alternating magnetic field, said coil assembly containing individual coil loops of essentially rectangular shape and having end turn areas arranged parallel to said longitudinal axis of the magnet field and coil side areas being perpendicular to said longitudinal axis of the magnetic field with each coil side having a coil side width (CSW) and each coil loop having a coil outside width (COW) and coil inside width (CIW) such that COW=CIW+(2.times.CSW) wherein the coils have a coil outside length (COL), forming a coil assembly area (CAA) approximately equal to COW.times.COL and said coil assembly has a coil assembly thickness (CAT) in a direction creating acoil assembly volume (CAV) approximately equal to the coil assembly area (CAA) times the coil assembly thickness (CAT) pursuant to the following equation: CAV.apprxeq.CAT.times.Type: GrantFiled: March 29, 1999Date of Patent: December 7, 1999Assignee: Airex CorporationInventors: Richard D. Sedgewick, David J. Carroll
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Patent number: 5959415Abstract: A linear motor comprising a DC magnetic field of alternating polarity arranged in a longitudinal axis, a coil assembly located substantially in a plane parallel to and immersed in the alternating magnetic field, said coil assembly containing individual coil loops of essentially rectangular shape and having end turn areas arranged parallel to said longitudinal axis of the magnet field and coil side areas being perpendicular to said longitudinal axis of the magnetic field with each coil side having a coil side width CSW) and each coil loop having a coil outside width (COW) and coil inside width (CIW) such that COW=CIW+(2.times.CSW) wherein the coils have a coil outside length (COL), forming a coil assembly area (CAA) approximately equal to COW.times.COL and said coil assembly has a coil assembly thickness (CAT) in a direction creating a coil assembly volume (CAV) approximately equal to the coil assembly area (CAA) times the coil assembly thickness (CAT) pursuant to the following equation: CAV.apprxeq.CAT.times.Type: GrantFiled: August 13, 1996Date of Patent: September 28, 1999Assignee: Richard D. SedgewickInventors: Richard D. Sedgewick, David J. Carroll
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Patent number: 4859890Abstract: A coil form bobbin (20) for winding coil winding wire is a flat disk (22) formed with a plurality of peripheral radial slots (24,25,26) comprising at least one set of n slots spaced around the periphery of the flat disk dividing the bobbin into a respective set of n segments. The slots extend from the outside perimeter part way the flat disk. A method for winding flat coil windings on the coil form bobbin is described. The coil winding is in flat configuration for rotor and stator applications. Each winding phase (44,45,46) of multiple turns of coil winding wire is wound in the configuration of a flat substantially regular polygon. The multiple turns of coil winding wire turn in the same direction for conducting electrical current in the same rotational direction around the phase.Type: GrantFiled: January 7, 1988Date of Patent: August 22, 1989Inventor: Richard D. Sedgewick
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Patent number: 4691746Abstract: A coil form bobbin (20) for winding coil winding wire is a flat disk (22) formed with a plurality of peripheral radial slots (24,25,26) comprising at least one set of n slots spaced around the periphery of the flat disk dividing the bobbin into a respective set of n segments. The slots extend from the outside perimeter part way the flat disk. A method for winding flat coil windings on the coil form bobbin is described. The coil winding is in flat configuration for rotor and stator applications. Each winding phase (44,45,46) of multiple turns of coil winding wire is wound in the configuration of a flat substantially regular polygon. The multiple turns of coil winding wire turn in the same direction for conducting electrical current in the same rotational direction around the phase.Type: GrantFiled: September 30, 1985Date of Patent: September 8, 1987Inventor: Richard D. Sedgewick
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Patent number: 4601432Abstract: A stack winding apparatus and method is described for winding wire filament around selected teeth of a slotted stack. The apparatus and method are applicable for stacks of annular configuration with radially inwardly and outwardly directed teeth; for winding tapered or other complex distributions of copper turns on iron; and for winding stacks with high density teeth and narrow slots where a winding needle cannot pass between adjacent teeth. A wire feed winding needle mounting support and a stack mounting support permit movement of the winding needle and a stack in at least three coordinate axis directions relative to each other. The supports may be formed on separate modules for variable angular orientation relative to each other. A number of motors control relative movement of the winding needle and stack along the three directions for winding selected teeth in the desired distribution.Type: GrantFiled: May 6, 1985Date of Patent: July 22, 1986Inventor: Richard D. Sedgewick
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Patent number: 4565094Abstract: Apparatus is described for precise placement of an object or sensing or measurement of a parameter using a plurality of tilt plates in substantially parallel spaced apart relationship forming a stack. Adjacent pairs of tilt plates in the stack are joined by unitary hinge plates secured to respective edges of each adjacent pair of tilt plates on one side. Each hinge plate is constructed and arranged of rigid elastic material for controlled elastic bending and recovery under applied bending moment stress. A plurality of spreader elements are provided operatively coupled to each pair of adjacent tilt plates at the side opposite the respective hinge plate. A spreader actuator actuates the spreaders for imparting tilting motion to the respective pair of tilt plates by varying the spacing of the pair of adjacent tilt plates relative to each other at one side imparting bending moment stress to the hinge plate on the other side.Type: GrantFiled: May 24, 1984Date of Patent: January 21, 1986Inventor: Richard D. Sedgewick
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Patent number: 4538770Abstract: A wire feed winding needle mounting support and a stack mounting support permit movement of the winding needle and a stack in at least three coordinate axis directions relative to each other. The supports may be formed on separate modules for variable angular orientation relative to each other. A number of motors control relative movement of the winding needle and stack along the three directions for winding selected teeth in the desired distribution. The invention provides as a basic component pliant bearing surface clamp members on either side of the row of teeth of a stack to be wound. A clamp mounting yoke and further motor means alternately move the pliant bearing surfaces toward and away from the row of teeth on either side between a clamp position and an open position.Type: GrantFiled: September 27, 1982Date of Patent: September 3, 1985Inventor: Richard D. Sedgewick
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Patent number: 4509564Abstract: Single and multi-phase, multi-pole arrays of adjacent equivalent current loops are formed in a self-supporting structure as wound. The multi-pole windings are formed by zig-zag winding elements having peaks and troughs. The peaks and troughs of each winding element form alternate halves of adjacent effective or equivalent current loops. When the peaks of one winding element are aligned with the troughs of another, the two elements provide a single phase ring of adjacent coupled current loops equivalent to the conventional separately wound coils. However, the current loops are already in a correctly positioned and oriented array as wound. The filaments of one winding element cross over the filaments of another intermediate the peaks and troughs and current passes in one direction through the first element returning in the opposite direction through the second. Multi-phase windings in a variety of configurations are described.Type: GrantFiled: April 18, 1983Date of Patent: April 9, 1985Inventor: Richard D. Sedgewick
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Patent number: 4399843Abstract: Single and multi-phase, multi-pole arrays of adjacent equivalent current loops are formed in a self-supporting structure as wound. The multi-pole windings are formed by zig-zag winding elements having peaks and troughs. The peaks and troughs of each winding element form alternate halves of adjacent effective or equivalent current loops. When the peaks of one winding element are aligned with the troughs of another, the two elements provide a single phase ring of adjacent coupled current loops equivalent to the conventional separately wound coils. However, the current loops are already in a correctly positioned and oriented array as wound. The filaments of one winding element cross over the filaments of another intermediate the peaks and troughs and current passes in one direction through the first element returning in the opposite direction through the second. Multi-phase windings in a variety of configurations are described.Type: GrantFiled: January 25, 1982Date of Patent: August 23, 1983Inventor: Richard D. Sedgewick
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Patent number: 4331896Abstract: Single and multi-phase, multi-pole arrays of adjacent equivalent current loops are formed in a self-supporting structure as wound. The multi-pole windings are formed by zig-zag winding elements having peaks and troughs. The peaks and troughs of each winding element form alternate halves of adjacent effective or equivalent current loops. When the peaks of one winding element are aligned with the troughs of another, the two elements provide a single phase ring of adjacent coupled current loops equivalent to the conventional separately wound coils. However, the current loops are already in a correctly positioned and oriented array as wound. The filaments of one winding element cross over the filaments of another intermediate the peaks and troughs and current passes in one direction through the first element returning in the opposite direction through the second. Multi-phase windings in a variety of configurations are described.Type: GrantFiled: October 20, 1980Date of Patent: May 25, 1982Inventor: Richard D. Sedgewick