Patents by Inventor Christian S.C. Bryant

Christian S.C. Bryant 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).

  • Patent number: 11560181
    Abstract: A stand-up grounds maintenance vehicle including a chassis, a control tower, an implement, and a cover. The chassis is supported upon a ground surface by a plurality of ground-engaging members and extends along a longitudinal axis between a front end and a rear end. The control tower is coupled to the chassis proximate the rear end. The implement is attached to the chassis and is positioned at least partially forward of the control tower. The implement includes an implement drive. The cover extends over the implement drive and is pivotally coupled to the chassis.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: January 24, 2023
    Assignee: EXMARK MANUFACTURING COMPANY INCORPORATED
    Inventors: Christian S. C. Bryant, Nickolas T. Moore
  • Publication number: 20220132730
    Abstract: A control system for use with a turf maintenance vehicle. In one embodiment, the control system may provide a discrete engine speed input that may provide one engine speed command upon actuation, but result in additional engine speed commands depending on an actuation time of the input. In other embodiments, the vehicle may include an electronic controller (EC) providing resettable property statistics for one or more properties. In still another embodiment, the EC may provide a maintenance monitor onboard the vehicle that indicates maintenance status, when maintenance tasks are due or past due, and permanently records historical information regarding maintenance tasks. The maintenance monitor may further adjust a maintenance interval before the maintenance task is again due based upon inputs to the maintenance monitor.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Inventors: Christian S.C. Bryant, Trevor M. Porter
  • Patent number: 10952378
    Abstract: Various embodiments of a grounds maintenance vehicle are disclosed. The vehicle includes a frame and a control tower disposed at or near a rear end of the frame. The control tower includes a support structure that defines an interior space of the control tower and a nonplanar removable skin connected to the support structure. The removable skin includes a front side disposed over a front side of the support structure and a lateral side disposed over at least one of a left side or a right side of the support structure. A portion of at least one of the front side or lateral side of the removable skin is disposed above an uppermost surface of the prime mover. Further, the removable skin is adapted to be at least partially removed from the support structure to facilitate additional access to the interior space of the control tower.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: March 23, 2021
    Assignee: EXMARK MANUFACTURING COMPANY, INCORPORATED
    Inventors: Christian S. C. Bryant, Nickolas T. Moore, Patrick D. Sands
  • Patent number: 10856465
    Abstract: Systems and methods for inhibiting implement-induced stall of a prime mover associated with a turf vehicle. In some embodiments, the vehicle includes an electronic controller (EC) adapted to monitor a speed of the prime mover and detect when the speed falls below a speed threshold. The EC is adapted to automatically disengage a power take-off (PTO) connecting the prime mover to the implement when the speed of the prime mover falls below this speed threshold.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 8, 2020
    Assignee: Exmark Manufacturing Company, Incorporated
    Inventors: Timothy D. Andre, Christian S. C. Bryant
  • Patent number: 10836426
    Abstract: A small radius- or zero radius-turn vehicle that may be steered by differentially-driven rear drive wheels and by at least one electronically-controlled, steerable front wheel. A device, e.g., one or more levers, may be provided that controls both speed and direction of the drive wheels. A sensor may be provided that detects a position of the lever(s). A controller may calculate a steering angle of the front wheel based upon the position, and issue a command to an actuator associated with the front wheel. The actuator may rotate the front wheel to an electronically calculated steering angle in response to the command.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: November 17, 2020
    Assignee: Exmark Manufacturing Company, Incorporated
    Inventors: Garry W. Busboom, Christian S. C. Bryant, Sang Pheng, James R. Gaebel
  • Publication number: 20200344953
    Abstract: Various embodiments of a grounds maintenance vehicle are disclosed. The vehicle includes a frame and a control tower disposed at or near a rear end of the frame. The control tower includes a support structure that defines an interior space of the control tower and a nonplanar removable skin connected to the support structure. The removable skin includes a front side disposed over a front side of the support structure and a lateral side disposed over at least one of a left side or a right side of the support structure. A portion of at least one of the front side or lateral side of the removable skin is disposed above an uppermost surface of the prime mover. Further, the removable skin is adapted to be at least partially removed from the support structure to facilitate additional access to the interior space of the control tower.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Inventors: Christian S.C. Bryant, Nickolas T. Moore, Patrick D. Sands
  • Publication number: 20200346695
    Abstract: A stand-up grounds maintenance vehicle including a chassis, a control tower, an implement, and a cover. The chassis is supported upon a ground surface by a plurality of ground-engaging members and extends along a longitudinal axis between a front end and a rear end. The control tower is coupled to the chassis proximate the rear end. The implement is attached to the chassis and is positioned at least partially forward of the control tower. The implement includes an implement drive. The cover extends over the implement drive and is pivotally coupled to the chassis.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Inventors: Christian S.C. Bryant, Nickolas T. Moore
  • Publication number: 20200344946
    Abstract: An operator support for a grounds maintenance vehicle, the operator support including a platform, one or more isolator arms, and an isolator element. The platform includes a platform body and a platform arm extending from the platform body. The platform arm is pivotally coupled to a chassis of the grounds maintenance vehicle and configured to pivot about a platform pivot axis. The isolator element is coupled to the chassis of the grounds maintenance vehicle and configured to attenuate vibration transmitted from the chassis to the platform body through the one or more isolator arms. The one or more isolator arms are configured to isolate the platform.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Inventors: Christian S.C. Bryant, Nickolas T. Moore
  • Patent number: 10815915
    Abstract: Systems and methods for determining an idle, recommended cool-down period (RCDP) for a prime mover of a grounds maintenance vehicle. Delaying engine shutdown until after expiration of the RCDP allows engine components to adequately cool. In some embodiments, systems and methods may provide a quantitative indication of the time remaining in the RCDP, while other embodiments may notify an operator that a re-start of the engine is necessary to continue cool-down.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: October 27, 2020
    Assignee: EXMARK MANUFACTURING COMPANY, INC.
    Inventors: Timothy D. Andre, Christian S. C. Bryant
  • Publication number: 20200281115
    Abstract: A control system for use with a turf maintenance vehicle. In one embodiment, the control system may provide a discrete engine speed input that may provide one engine speed command upon actuation, but result in additional engine speed commands depending on an actuation time of the input. In other embodiments, the vehicle may include an electronic controller (EC) providing resettable property statistics for one or more properties. In still another embodiment, the EC may provide a maintenance monitor onboard the vehicle that indicates maintenance status, when maintenance tasks are due or past due, and permanently records historical information regarding maintenance tasks. The maintenance monitor may further adjust a maintenance interval before the maintenance task is again due based upon inputs to the maintenance monitor.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 10, 2020
    Inventor: Christian S.C. Bryant
  • Patent number: 10729073
    Abstract: Vehicles including a power system incorporating dual drive shafts. An exemplary power system may include an engine having a vertically-oriented crankshaft that extends outwardly both below the engine (lower drive shaft) and above the engine (upper drive shaft). The lower drive shaft may power an implement of the vehicle via an implement drive system, while the upper drive shaft may power drive wheels of the vehicle via a traction drive system. In another embodiment, the second drive shaft may be formed by a jackshaft adjacent the engine.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: August 4, 2020
    Assignee: Exmark Manufacturing Company, Incorporated
    Inventors: Christian S. C. Bryant, Nickolas T. Moore
  • Patent number: 10701859
    Abstract: A control system for use with a turf maintenance vehicle. In one embodiment, the control system may provide a discrete engine speed input that may provide one engine speed command upon actuation, but result in additional engine speed commands depending on an actuation time of the input. In other embodiments, the vehicle may include an electronic controller (EC) providing resettable property statistics for one or more properties. In still another embodiment, the EC may provide a maintenance monitor onboard the vehicle that indicates maintenance status, when maintenance tasks are due or past due, and permanently records historical information regarding maintenance tasks. The maintenance monitor may further adjust a maintenance interval before the maintenance task is again due based upon inputs to the maintenance monitor.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: July 7, 2020
    Assignee: EXMARK MANUFACTURING COMPANY, INCORPORATED
    Inventors: Christian S. C. Bryant, David M. Converse
  • Publication number: 20200080501
    Abstract: Systems and methods for determining an idle, recommended cool-down period (RCDP) for a prime mover of a grounds maintenance vehicle. Delaying engine shutdown until after expiration of the RCDP allows engine components to adequately cool. In some embodiments, systems and methods may provide a quantitative indication of the time remaining in the RCDP, while other embodiments may notify an operator that a re-start of the engine is necessary to continue cool-down.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 12, 2020
    Inventors: Timothy D. Andre, Christian S.C. Bryant
  • Publication number: 20190357429
    Abstract: Systems and methods for inhibiting implement-induced stall of a prime mover associated with a turf vehicle. In some embodiments, the vehicle includes an electronic controller (EC) adapted to monitor a speed of the prime mover and detect when the speed falls below a speed threshold. The EC is adapted to automatically disengage a power take-off (PTO) connecting the prime mover to the implement when the speed of the prime mover falls below this speed threshold.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 28, 2019
    Inventors: Timothy D. Andre, Christian S.C. Bryant
  • Publication number: 20190133039
    Abstract: Vehicles including a power system incorporating dual drive shafts. An exemplary power system may include an engine having a vertically-oriented crankshaft that extends outwardly both below the engine (lower drive shaft) and above the engine (upper drive shaft). The lower drive shaft may power an implement of the vehicle via an implement drive system, while the upper drive shaft may power drive wheels of the vehicle via a traction drive system. In another embodiment, the second drive shaft may be formed by a jackshaft adjacent the engine.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 9, 2019
    Inventors: Christian S.C. Bryant, Nickolas T. Moore
  • Publication number: 20170196164
    Abstract: A control system for use with a turf maintenance vehicle. In one embodiment, the control system may provide a discrete engine speed input that may provide one engine speed command upon actuation, but result in additional engine speed commands depending on an actuation time of the input. In other embodiments, the vehicle may include an electronic controller (EC) providing resettable property statistics for one or more properties. In still another embodiment, the EC may provide a maintenance monitor onboard the vehicle that indicates maintenance status, when maintenance tasks are due or past due, and permanently records historical information regarding maintenance tasks. The maintenance monitor may further adjust a maintenance interval before the maintenance task is again due based upon inputs to the maintenance monitor.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 13, 2017
    Inventors: Christian S.C. Bryant, Trevor M. Porter, David M. Converse
  • Patent number: 9591796
    Abstract: A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: March 14, 2017
    Assignee: Exmark Mfg. Co., Inc.
    Inventors: Christian S. C. Bryant, Alex W. Buhr, Timothy D. Andre, Jeremy J. Tate
  • Patent number: 9462738
    Abstract: A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 11, 2016
    Assignee: Exmark Mfg. Co., Inc.
    Inventors: Christian S. C. Bryant, Alex W. Buhr, Daniel W. Dorn
  • Publication number: 20160135352
    Abstract: A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.
    Type: Application
    Filed: January 22, 2016
    Publication date: May 19, 2016
    Inventors: Christian S.C. Bryant, Alex W. Buhr, Timothy D. Andre, Jeremy J. Tate
  • Publication number: 20160135353
    Abstract: A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.
    Type: Application
    Filed: January 22, 2016
    Publication date: May 19, 2016
    Inventors: Christian S.C. Bryant, Alex W. Buhr, Daniel W. Dorn