Patents by Inventor Mark J. Robuck
Mark J. Robuck 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: 11939984Abstract: Compressors having multi-speed gearboxes are disclosed. The apparatus comprises: a fluid channel to convey a fluid, a compressor fluidly coupled to the fluid channel, a gearbox operatively coupled to the compressor, the gearbox to control the compressor using a first gear ratio and a second gear ratio different from the first gear ratio to vary a flow rate of fluid in the fluid channel, and clutches to vary the gearbox between the first gear ratio and the second gear ratio.Type: GrantFiled: February 8, 2022Date of Patent: March 26, 2024Inventors: Mark J. Robuck, Scott H. Bouwer, John C. Walters, Steve G. Mackin
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Publication number: 20230038989Abstract: An example transmission comprising a lubricant feed passageway to receive lubricant; an input shaft having a cavity that defines a shaft collection trough to receive the lubricant from the lubricant feed passageway, the input shaft defining a radial passageway to enable the lubricant to flow from the shaft collection trough to an exterior surface of the input shaft; and a carrier to receive at least a portion of the input shaft, the carrier defining a carrier collection trough and channels formed in the carrier to distribute the lubricant to at least one of rotating components or non-rotating components in the carrier, the carrier collection trough to receive the lubricant from the shaft collection trough via the radial passageway in response to the input shaft rotating.Type: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Inventors: John C. Walters, Mark J. Robuck, Todd T. Harder, Eric A. Kaiser
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Publication number: 20220349410Abstract: Compressors having multi-speed gearboxes are disclosed. The apparatus comprises: a fluid channel to convey a fluid, a compressor fluidly coupled to the fluid channel, a gearbox operatively coupled to the compressor, the gearbox to control the compressor using a first gear ratio and a second gear ratio different from the first gear ratio to vary a flow rate of fluid in the fluid channel, and clutches to vary the gearbox between the first gear ratio and the second gear ratio.Type: ApplicationFiled: February 8, 2022Publication date: November 3, 2022Inventors: Mark J. Robuck, Scott H. Bouwer, John C. Walters, Steve G. Mackin
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Patent number: 11203424Abstract: A mechanical power transmission that pivots about an axis to vary an angle between an input shaft and an output shaft. The mechanical power transmission includes an input gear having an input shaft that couples to a drive shaft, an output gear having an output shaft that couples to a tail rotor, a first intermediate gear rotationally coupled to the input gear, and a second intermediate gear rotationally coupled to the output gear. The mechanical power transmission further comprises a shaft that mechanically couples the first intermediate gear with the second intermediate gear, where a centerline of the shaft is coincident with the axis.Type: GrantFiled: March 13, 2019Date of Patent: December 21, 2021Assignee: The Boeing CompanyInventors: Patrick Darmstadt, Yiyi Zhang, Mark J. Robuck
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Publication number: 20200290734Abstract: A mechanical power transmission is described that pivots about an axis to vary an angle between an input shaft and an output shaft. In one embodiment, the mechanical power transmission includes an input gear having an input shaft that couples to a drive shaft, an output gear having an output shaft that couples to a tail rotor, a first intermediate gear rotationally coupled to the input gear, and a second intermediate gear rotationally coupled to the output gear. The mechanical power transmission further comprises a shaft that mechanically couples the first intermediate gear with the second intermediate gear, where a centerline of the shaft is coincident with the axis.Type: ApplicationFiled: March 13, 2019Publication date: September 17, 2020Inventors: Patrick Darmstadt, Yiyi Zhang, Mark J. Robuck
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Patent number: 10655728Abstract: Reversely identical transmissions for a tiltrotor aircraft include reconfigurable gearbox lubrication systems to accommodate operation in either direction of propeller rotation, using common parts. In a typical installation, at least two separate winged tiltrotor transmissions operate with opposing propeller rotations. Common parts of the two transmissions include cast housings, rotor shafts, pinion gears, lubrication sump tanks, lubrication pumps, and lubrication filter manifolds including filters having reversible orientations. Either transmission configuration can be utilized on either the left or right side of a tiltrotor aircraft by swapping the lubrication sump tank and lubrication filter manifold locations on the gearbox. In addition, a plug is used to manually reconfigure an opposite lubrication oil path to accommodate first and second rotational directions of the lubrication pump.Type: GrantFiled: December 1, 2015Date of Patent: May 19, 2020Assignee: The Boeing CompanyInventors: Evan J. Filter, Mark J. Robuck
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Patent number: 9938004Abstract: A transmission includes a first pericyclic motion converter having a first aperture to receive at least a portion of an output shaft and a second pericyclic motion converter having a second aperture to receive at least a portion of the output shaft. A first bearing is positioned between an inner surface of the first pericyclic motion converter defined by the first aperture and an outer surface of the output shaft. A second bearing is positioned between an inner surface of the second pericyclic motion converter defined by the second aperture and the outer surface of the output shaft.Type: GrantFiled: May 18, 2015Date of Patent: April 10, 2018Assignee: The Boeing CompanyInventors: Mark J. Robuck, Eric Kaiser
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Patent number: 9765853Abstract: An example transmission includes a first pericyclic motion converter to wobble at an angle relative to a first reaction control member and a first output shaft gear. The first pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the first reaction control member to provide a first gear mesh and to engage a portion of gear teeth at a circumference of the first output shaft gear to provide a second gear mesh. A second pericyclic motion converter wobbles at an angle relative to a second reaction control member and a second output shaft gear. The second pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the second reaction control member to provide a third gear mesh and engage a portion of gear teeth at a circumference of the second output shaft gear to provide a fourth gear mesh.Type: GrantFiled: May 18, 2015Date of Patent: September 19, 2017Assignee: THE BOEING COMPANYInventors: Mark J. Robuck, Eric Kaiser
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Publication number: 20170152935Abstract: Reversely identical transmissions for a tiltrotor aircraft may include reconfigurable gearbox lubrication systems to accommodate operation in either direction of propeller rotation, using common parts. In a typical installation, at least two separate winged tiltrotor transmissions may operate with opposing propeller rotations. Common parts of the two transmissions may include cast housings, rotor shafts, pinion gears, lubrication sump tanks, lubrication pumps, and lubrication filter manifolds including filters having reversible orientations. Either transmission configuration may be utilized on either the left or right side of a tiltrotor aircraft by swapping the lubrication sump tank and lubrication filter manifold locations on the gearbox. In addition, a plug may be used to manually reconfigure an opposite lubrication oil path to accommodate first and second rotational directions of the lubrication pump.Type: ApplicationFiled: December 1, 2015Publication date: June 1, 2017Applicant: The Boeing CompanyInventors: Evan J. Filter, Mark J. Robuck
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Publication number: 20160341282Abstract: Power transmissions are disclosed. An example transmission includes a first pericyclic motion converter to wobble at an angle relative to a first reaction control member and a first output shaft gear. The first pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the first reaction control member to provide a first gear mesh and to engage a portion of gear teeth at a circumference of the first output shaft gear to provide a second gear mesh. A second pericyclic motion converter wobbles at an angle relative to a second reaction control member and a second output shaft gear. The second pericyclic motion converter having gear teeth to engage a portion of gear teeth at a circumference of the second reaction control member to provide a third gear mesh and engage a portion of gear teeth at a circumference of the second output shaft gear to provide a fourth gear mesh.Type: ApplicationFiled: May 18, 2015Publication date: November 24, 2016Inventors: Mark J. Robuck, Eric Kaiser
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Publication number: 20160341283Abstract: Power transmissions are disclosed. An example transmission includes a first pericyclic motion converter having a first aperture to receive at least a portion of an output shaft and a second pericyclic motion converter having a second aperture to receive at least a portion of the output shaft. A first bearing is positioned between an inner surface of the first pericyclic motion converter defined by the first aperture and an outer surface of the output shaft. A second bearing is positioned between an inner surface of the second pericyclic motion converter defined by the second aperture and the outer surface of the output shaft.Type: ApplicationFiled: May 18, 2015Publication date: November 24, 2016Inventors: Mark J. Robuck, Eric Kaiser
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Patent number: 7309166Abstract: A hub joint for supporting bearings adapted to rotatably receive a shaft. The joint includes an upper annular portion having a radially inner boundary and an upper bearing mount attached to the inner boundary of the upper annular portion. The upper bearing mount has a radially inner surface forming a conical upper bearing seat. The joint further comprises a lower bearing mount attached to and positioned below the upper bearing mount. The lower bearing mount has a radially inner surface forming a conical lower bearing seat. The joint also comprises a lower annular portion having a radially inner boundary attached to the lower bearing mount.Type: GrantFiled: September 30, 2005Date of Patent: December 18, 2007Assignee: The Boeing CompanyInventors: Peter Holemans, Mark J. Robuck, Pierre J. Minguet
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Patent number: 6966865Abstract: A high ratio, double helical epicyclic gear transmission that is primarily intended for use in rotary wing aircraft employs double helical planet gears to obtain a reduction in size of the transmission, to improve the safety of the transmission, and to reduce the noise created by operation of the transmission.Type: GrantFiled: November 10, 2003Date of Patent: November 22, 2005Assignee: The Boeing CompanyInventors: Raymond J. Drago, Joseph W. Lenski Jr., Mark J. Robuck