Patents by Inventor Christopher H. Koenig
Christopher H. Koenig 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: 11807493Abstract: Disclosed is a method of retrofitting a legacy hoist machine including: attaching a primary brake assembly to an end surface of a machine shaft, and configuring a controller to: control the primary brake assembly to provide service braking; and control a brake drum assembly as a secondary brake assembly to thereby apply emergency braking.Type: GrantFiled: October 31, 2018Date of Patent: November 7, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Christopher H. Koenig, Barry G. Blackaby, Daniel B. Davis, Gregory M. O'Seep, John Eschenbrenner, Jesse R. Richter, Gary P. Mendrala
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Patent number: 11377323Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.Type: GrantFiled: March 9, 2020Date of Patent: July 5, 2022Assignee: OTIS ELEVATOR COMPANYInventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Patent number: 11299374Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.Type: GrantFiled: May 8, 2020Date of Patent: April 12, 2022Assignee: OTIS ELEVATOR COMPANYInventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Publication number: 20200270100Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.Type: ApplicationFiled: May 8, 2020Publication date: August 27, 2020Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Patent number: 10737908Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.Type: GrantFiled: November 22, 2016Date of Patent: August 11, 2020Assignee: OTIS ELEVATOR COMPANYInventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Publication number: 20200207580Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Patent number: 10618775Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.Type: GrantFiled: November 18, 2016Date of Patent: April 14, 2020Assignee: OTIS ELEVATOR COMPANYInventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Publication number: 20180141781Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.Type: ApplicationFiled: November 18, 2016Publication date: May 24, 2018Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Publication number: 20180141783Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.Type: ApplicationFiled: November 22, 2016Publication date: May 24, 2018Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
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Patent number: 8752262Abstract: An exemplary method of retrofitting a brake onto an elevator machine that was previously installed in an elevator system includes selecting a surface of the elevator machine that rotates as a sheave of the machine rotates. A braking surface is provided on the selected surface. At least one brake member is installed in a position to selectively engage the braking surface.Type: GrantFiled: January 29, 2010Date of Patent: June 17, 2014Assignee: Otis Elevator CompanyInventors: Daniel B. Davis, Valery Sheynkman, Kenneth V. Allen, Jesse R. Richter, Michael P. Keenan, Gregory M. Oseep, Robert Scott Farmer, Doug B. LaBrecque, Christopher H. Koenig, Michael Joseph Concannon
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Publication number: 20110147129Abstract: An exemplary method of retrofitting a brake onto an elevator machine that was previously installed in an elevator system includes selecting a surface of the elevator machine that rotates as a sheave of the machine rotates. A braking surface is provided on the selected surface. At least one brake member is installed in a position to selectively engage the braking surface.Type: ApplicationFiled: January 29, 2010Publication date: June 23, 2011Inventors: Daniel B. Davis, Valery Sheynkman, Kenneth V. Allen, Jesse R. Richter, Michael P. Keenan, Gregory M. Oseep, Robert Scott Farmer, Doug B. LaBrecque, Christopher H. Koenig, Michael Joseph Concannon
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Patent number: 5594219Abstract: An elevator position apparatus for determining if an elevator car is positioned within a door zone includes an encoded medium disposed vertically in an elevator hoistway, at least two door zone sensors for providing first and second door zone sensor signals in response to the encoded medium, at least two leveling sensors for providing up and down sensor signals in response to the encoded medium and means for determining if the elevator car is positioned within the door zone.Type: GrantFiled: January 23, 1995Date of Patent: January 14, 1997Assignee: Otis Elevator CompanyInventors: Sanjay Kamani, Daniel S. Williams, Christopher H. Koenig