Mark Robuck429 Dupont St, Philadelphia, PA 19128

6966865, Nov 22, 2005

Nov 10, 2003

10/706497

Raymond J. Drago - Glen Mills PA, US
Joseph W. Lenski Jr. - Newtown Square PA, US
Mark J. Robuck - Chadds Ford PA, US

The Boeing Company - Chicago IL

F16H001/36

475338, 475342

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.

7309166, Dec 18, 2007

Sep 30, 2005

11/240246

Peter Holemans - Sewell NJ, US
Mark J. Robuck - Chadds Ford PA, US
Pierre J. Minguet - Media PA, US

The Boeing Company - Chicago IL

F16C 35/06

384571, 384543

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.

7507180, Mar 24, 2009

May 10, 2006

11/431779

Mark Robuck - Chadds Ford PA, US

The Boeing Company - Chicago IL

F16H 57/08

475336

An epicyclic gear transmission primarily intended for use in rotary wing aircraft that utilizes a plurality of planet gears axially spaced on a planet gear shaft. The planet gear shaft is tilted or inclined at an axis with respect to the center axis of the input shaft or sun gear. In addition, the planet gears may include a shallow angle face gear. The tilted axis planet gears obtain a reduction in size of the transmission and correspondingly reduce the overall weight thereof.

2004011, Jun 24, 2004

Dec 20, 2002

10/326326

Mark Robuck - Chadds Ford PA, US

F16D041/12

192/046000, 192/071000, 192/11400R

A positive locking overrunning clutch mechanism comprising an inner clutch member, an outer clutch member, and a locking mechanism. The clutch members are adapted to rotate about a clutch axis. The locking mechanism has a plurality of lock portions adapted to transfer torque load from the inner clutch member to the outer clutch member. The locking mechanism is moveable between a locked position and an unlocked position. In the locked position, the lock portions simultaneously engage the inner and outer clutch members in a manner to cause the outer clutch member to rotate with the inner clutch member upon rotation of the inner clutch member about the clutch axis in a first rotational direction. In the unlocked position, the lock portions are positioned relative to the inner and outer clutch members in a manner to permit rotation of the outer clutch member relative to the inner clutch member in the first rotational direction. Each lock portion is a first radial distance from the clutch axis when the locking mechanism is in the locked position and a second radial distance from the clutch axis when the locking mechanism is in the unlocked position. One of the inner and outer clutch members has a plurality of retaining portions adapted to engage the lock portions of the locking mechanism in a manner to positively maintain the locking mechanism in the unlocked position.

2023003, Feb 9, 2023

Aug 3, 2021

17/444346

- Chicago IL, US
Mark J. Robuck - Chadds Ford PA, US
Todd T. Harder - West Chester PA, US
Eric A. Kaiser - Media PA, US

F16H 57/04

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.

2020029, Sep 17, 2020

Mar 13, 2019

16/351971

- Chicago IL, US
Yiyi Zhang - Wallingford PA, US
Mark J. Robuck - Chadds Ford PA, US

B64C 27/82
F16H 57/02
B64C 27/22
B64C 27/16

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.

2017015, Jun 1, 2017

Dec 1, 2015

14/955987

- Chicago IL, US
Mark J. Robuck - Chadds Ford PA, US

The Boeing Company - Chicago IL

F16H 57/04
B64C 29/00
F16H 57/025

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.

2015035, Dec 10, 2015

Jun 10, 2014

14/301263

- Huntington Beach CA, US
Mark Joseph Robuck - Chadds Ford PA, US

The Boeing Company - Huntington Beach CA

F16H 1/46
B64C 27/10
B64C 27/12

Planetary gear systems, transmissions, and apparatuses include at least one non-fixed annular gear, at least one non-fixed sun gear, at least one compound planet gear meshed between the at least one non-fixed annular gear and the at least one non-fixed sun gear, and at least one fixed gear meshed with the at least one compound planet gear. Rotational input to one of the at least one non-fixed annular gear and the at least one non-fixed sun gear results in an opposite rotational output of the other of the at least one non-fixed annular gear and the at least one non-fixed sun gear.