Patents by Inventor Wally E. Rippel

Wally E. Rippel 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: 20200176174
    Abstract: A fluid-cooled magnetic element. Coils are formed with small gaps between the turns of the coils. Coolant flow through the gaps cools the coils.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Inventors: Eric E. Rippel, Wally E. Rippel
  • Patent number: 10600548
    Abstract: A toroidal magnetic element. A plurality of coils is arranged in a toroidal configuration. Each coil may be a hollow cylinder, formed by winding a rectangular wire into a roll. The coils alternate with spacers, each of which may be a wedge. The coils may alternate in winding orientation, and the inner end of each coil may be connected, through a connection pin, to the inner end of an adjacent coil. Small gaps are formed between the coils and the wedges, e.g. as a result of each wedge having, on its two faces, a plurality of raised ribs, against which the coils abut. Cooling fluid flows through the gaps to cool the coils.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 24, 2020
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Publication number: 20200082968
    Abstract: A toroidal magnetic element. A plurality of coils is arranged in a toroidal configuration. Each coil may be a hollow cylinder, formed by winding a rectangular wire into a roll. The coils alternate with spacers, each of which may be a wedge. The coils may alternate in winding orientation, and the inner end of each coil may be connected, through an S-Bend to the inner end of an adjacent coil. Small gaps are formed between the coils and the wedges, e.g. as a result of each wedge having, on its two faces, a plurality of raised ribs, against which the coils abut. Cooling fluid flows through the gaps to cool the coils.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 12, 2020
    Inventors: Eric E. Rippel, Wally E. Rippel
  • Patent number: 10473222
    Abstract: A low drag fluid seal. The fluid seal includes a lip separated from the rotor shaft, during operation, by a gap, the gap being sufficient narrow, radially, to prevent liquid from seeping through the gap at an unacceptable rate, but sufficiently wide, radially, to avoid unacceptably high viscous drag. Fluid that seeps through the gap accumulates in a recovery cavity and is recovered.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: November 12, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Eric E. Rippel, Wally E. Rippel
  • Publication number: 20190334413
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10411563
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 10, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10374489
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 6, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10348114
    Abstract: A portable power unit is provided that can be embodied in backpack, waist-pack, or other portable form. The portable power unit can include a battery, a bidirectional power processor, and a power port. The bidirectional power processor allows for direct current (DC) power exchange between the battery and the bidirectional power processor and a user selectable alternating current (AC) or DC power exchange between the bidirectional power processor and a power port through which a power source and an external load can be connected for charging and discharging of the electrochemical battery, respectively.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: July 9, 2019
    Assignee: WHISPER ENERGY SYSTEMS INC.
    Inventors: Wally E. Rippel, Michael Gould, Brian Jensen
  • Publication number: 20190157885
    Abstract: A portable power unit is provided that can be embodied in backpack, waist-pack, or other portable form. The portable power unit can include a battery, a bidirectional power processor, and a power port. The bidirectional power processor allows for direct current (DC) power exchange between the battery and the bidirectional power processor and a user selectable alternating current (AC) or DC power exchange between the bidirectional power processor and a power port through which a power source and an external load can be connected for charging and discharging of the electrochemical battery, respectively.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Inventors: Wally E. Rippel, Michael Gould, Brian Jensen
  • Publication number: 20190088399
    Abstract: A toroidal magnetic element. A plurality of coils is arranged in a toroidal configuration. Each coil may be a hollow cylinder, formed by winding a rectangular wire into a roll. The coils alternate with spacers, each of which may be a wedge. The coils may alternate in winding orientation, and the inner end of each coil may be connected, through an S-Bend to the inner end of an adjacent coil. Small gaps are formed between the coils and the wedges, e.g. as a result of each wedge having, on its two faces, a plurality of raised ribs, against which the coils abut. Cooling fluid flows through the gaps to cool the coils.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Patent number: 10186886
    Abstract: A portable power unit is provided that can be embodied in backpack, waist-pack, or other portable form. The portable power unit can include a battery, a bidirectional power processor, and a power port. The bidirectional power processor allows for direct current (DC) power exchange between the battery and the bidirectional power processor and a user selectable alternating current (AC) or DC power exchange between the bidirectional power processor and a power port through which a power source and an external load can be connected for charging and discharging of the electrochemical battery, respectively.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 22, 2019
    Assignee: Whisper Energy Systems Inc.
    Inventors: Wally E. Rippel, Michael Gould, Brian Jensen
  • Publication number: 20190006082
    Abstract: A fluid-cooled magnetic element. A plurality of coils is arranged in a non-toroidal configuration. Each coil may be a hollow cylinder, formed by winding a rectangular wire into a roll. The coils alternate with planer spacers. The coils may alternate in winding orientation, and the inner end of each coil may be connected, through a connection pin, to the inner end of an adjacent coil. Small gaps are formed between the coils and the spacers, e.g. as a result of each spacer having, on its two faces, a plurality of raised ribs, against which the coils abut. Cooling fluid flows through the gaps to cool the coils.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 3, 2019
    Inventors: Eric E. Rippel, Wally E. Rippel
  • Publication number: 20180367003
    Abstract: An electric machine. The electric machine includes one or more edge wound strips including a first strip. The one or more strips have a plurality of openings. The first strip has a plurality of turns, and an opening of a turn of the first strip overlaps an opening of an adjacent turn, to form a portion of a fluid channel of a plurality of fluid channels. The turn and the adjacent turn abut against each other at the overlapping openings.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Inventors: Eric Rippel, Wally E. Rippel
  • Publication number: 20180347704
    Abstract: A low drag fluid seal. The fluid seal includes a lip separated from the rotor shaft, during operation, by a gap, the gap being sufficient narrow, radially, to prevent liquid from seeping through the gap at an unacceptable rate, but sufficiently wide, radially, to avoid unacceptably high viscous drag. Fluid that seeps through the gap accumulates in a recovery cavity and is recovered.
    Type: Application
    Filed: July 23, 2018
    Publication date: December 6, 2018
    Inventors: Eric E. Rippel, Wally E. Rippel
  • Publication number: 20180323676
    Abstract: A cooling structure for an end turn of an electric machine stator. The cooling structure includes a plurality of layers, a layer of the plurality of layers having an opening forming a portion of a fluid passage.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 8, 2018
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Patent number: 10060682
    Abstract: A wound strip structure for efficient heat transfer. The structure includes one or more edge-wound or face-wound strips. At least one of the strips has a plurality of turns and a plurality of apertures, and an aperture of a turn of the strip overlapping an aperture of an adjacent turn, of the strip or of another strip, to form a portion of a fluid channel. The fluid channel may be used to conduct a cooling fluid to cool the structure.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 28, 2018
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10030777
    Abstract: A low drag fluid seal. The fluid seal includes a rigid lip separated from the rotor shaft by a gap, the gap being sufficient narrow, radially, to prevent liquid from seeping through the gap at an unacceptable rate, but sufficiently wide, radially, to avoid unacceptably high viscous drag. Fluid that seeps through the gap accumulates in a recovery cavity and is recovered by a scavenge pump.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 24, 2018
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Patent number: 9985500
    Abstract: An electric machine with fluid cooling. The electric machine includes a stator, the stator having a stator winding and a stator core having a plurality of stacked magnetic laminations, each of the laminations of the stator core having a plurality of apertures overlapping to form a plurality of stator fluid channels, a stator fluid channel of the plurality of stator fluid channels being not entirely axial. The electric machine further includes a rotor, the rotor having a shaft and a rotor core having a plurality of stacked magnetic laminations, each of the laminations of the rotor core having a plurality of apertures overlapping to form a plurality of rotor fluid channels, and a rotary fluid coupling in fluid communication with the rotor fluid channels. The rotor and the stator are configured to form a magnetic circuit comprising an air gap between the rotor and the stator.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 29, 2018
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Publication number: 20170330670
    Abstract: A toroidal magnetic element. A plurality of coils is arranged in a toroidal configuration. Each coil may be a hollow cylinder, formed by winding a rectangular wire into a roll. The coils alternate with spacers, each of which may be a wedge. The coils may alternate in winding orientation, and the inner end of each coil may be connected, through a connection pin, to the inner end of an adjacent coil. Small gaps are formed between the coils and the wedges, e.g. as a result of each wedge having, on its two faces, a plurality of raised ribs, against which the coils abut. Cooling fluid flows through the gaps to cool the coils.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Wally E. Rippel, Eric E. Rippel
  • Publication number: 20170292612
    Abstract: A low drag fluid seal. The fluid seal includes a rigid lip separated from the rotor shaft by a gap, the gap being sufficient narrow, radially, to prevent liquid from seeping through the gap at an unacceptable rate, but sufficiently wide, radially, to avoid unacceptably high viscous drag. Fluid that seeps through the gap accumulates in a recovery cavity and is recovered by a scavenge pump.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Inventors: Wally E. Rippel, Eric E. Rippel