Patents by Inventor Leonard Bergman
Leonard Bergman 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: 11089727Abstract: In a harvesting machine having an agricultural header which is adjustable in height, a computer controller includes programming instructions to allow an operator to associate a plurality of different harvester functions with a single programmable input button providing single-touch actuation. The input button is programmable to return the header height to a preset height value in addition to controlling position of one or more additional accessories such as a double windrow attachment, a deck shifting set of drapers of the header, and/or a crop compressor attachment, etc. Programming of the input button uses navigational inputs to select which functions of the machine are associated with the button, followed by a press-and-hold actuation to set the preset value of all associated functions based on the current operating condition.Type: GrantFiled: February 23, 2018Date of Patent: August 17, 2021Assignee: MacDon IndustriesInventors: John Baldwin, Younes Rakhshani Fatmehsari, Benjamin Foster, Leonard Bergman
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Patent number: 10701863Abstract: A controller on a harvester vehicle is arranged to automatically identify a header in electrical communication with the vehicle upon key activation of the harvester vehicle. Programming instructions on the controller can generate notifications to the user based upon a state of activation of the float mechanism and the state of header identity detection. The controller also prompts the user to confirm the identity of the header if the detected identity of the header has changed. The controller also uses header identity to log usage hours of the header on the computer controller in association with the identity of the header such that maintenance schedules for a plurality of different headers interchangeably used on a common harvester vehicle can be tracked.Type: GrantFiled: February 23, 2018Date of Patent: July 7, 2020Assignee: MacDon Industries Ltd.Inventors: Benjamin Foster, Michael Flintoft, Sivian Loevsky, John Baldwin, Leonard Bergman
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Publication number: 20190261555Abstract: In a harvesting machine having an agricultural header which is adjustable in height, a computer controller includes programming instructions to allow an operator to associate a plurality of different harvester functions with a single programmable input button providing single-touch actuation. The input button is programmable to return the header height to a preset height value in addition to controlling position of one or more additional accessories such as a double windrow attachment, a deck shifting set of drapers of the header, and/or a crop compressor attachment, etc. Programming of the input button uses navigational inputs to select which functions of the machine are associated with the button, followed by a press-and-hold actuation to set the preset value of all associated functions based on the current operating condition.Type: ApplicationFiled: February 23, 2018Publication date: August 29, 2019Inventors: John Baldwin, Younes Rakhshani Fatmehsari, Benjamin Foster, Leonard Bergman
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Publication number: 20190261554Abstract: A controller on a harvester vehicle is arranged to automatically identify a header in electrical communication with the vehicle upon key activation of the harvester vehicle. Programming instructions on the controller can generate notifications to the user based upon a state of activation of the float mechanism and the state of header identity detection. The controller also prompts the user to confirm the identity of the header if the detected identity of the header has changed. The controller also uses header identity to log usage hours of the header on the computer controller in association with the identity of the header such that maintenance schedules for a plurality of different headers interchangeably used on a common harvester vehicle can be tracked.Type: ApplicationFiled: February 23, 2018Publication date: August 29, 2019Inventors: Benjamin Foster, Michael Flintoft, Sivian Loevsky, John Baldwin, Leonard Bergman
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Patent number: 9796419Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.Type: GrantFiled: December 4, 2014Date of Patent: October 24, 2017Assignee: MacDon Industries Ltd.Inventors: Phil Otto, Don MacGregor, Leonard Bergman
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Publication number: 20150166103Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.Type: ApplicationFiled: December 4, 2014Publication date: June 18, 2015Inventors: Phil Otto, Don MacGregor, Leonard Bergman
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Publication number: 20150114020Abstract: An agricultural tractor includes a frame, ground wheels including drive wheels, an operator cab carried on the frame, an engine mounted in an engine compartment on the frame at a position longitudinally spaced from the cab, a cooling assembly within the engine compartment for cooling the engine with the fan on the cooling assembly being driven by a hydraulic motor. An air conditioning system for cooling the cab includes a compressor in the engine compartment driven directly or indirectly by the same hydraulic motor so that it is driven at the rate of the fan rather than the rate of the engine. The engine control system controls both the cooling fan and the compressor using a clutch to disconnect the compressor when not required or when the fan is driven in reverse direction.Type: ApplicationFiled: July 31, 2014Publication date: April 30, 2015Inventor: Leonard Bergman
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Patent number: 8985252Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.Type: GrantFiled: November 19, 2012Date of Patent: March 24, 2015Assignee: MacDon Industries Ltd.Inventors: Phil Otto, Don MacGregor, Leonard Bergman
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Patent number: 8408567Abstract: A swather tractor has a frame defined by a main tractor frame carrying the cab, engine and drive system, rear axle with castor wheels and a transverse front frame assembly mounted at a front of the main frame. The front rigid frame assembly carries the header and comprises a cross member and a pair of upstanding legs each carrying a front ground wheel hydraulically driven so that steering is controlled by the rate of forward movement of the front wheels. In order to provide improved suspension, the main frame is connected to the front frame assembly by a coupling which allows up and down suspension movement of the main frame relative to the front frame assembly.Type: GrantFiled: May 4, 2011Date of Patent: April 2, 2013Assignee: MacDon Industries LtdInventors: Leonard Bergman, James Thomas Dunn
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Patent number: 8291684Abstract: In a swather formed by a tractor and attached heeder for cutting standing crop to form a swath, reel speed and optionally draper speed are controlled relative to ground speed by a control system including a manually operable input and display available to the operator. The control system can be used in an automatic mode to set an index value for an actual difference in reel speed relative to ground speed and to vary reel speed accordingly. In this mode a manually operable control varies the index. The control system can be switched by the operator to manual in which case the same control varies the actual reel speed. Minimum reel speed can be set by the same control and when operative the automatic system does not allow reel speed to fall below the minimum set value despite the values of index and ground speed.Type: GrantFiled: April 12, 2011Date of Patent: October 23, 2012Assignee: MacDon Industries Ltd.Inventors: Rheal G. Remillard, James Thomas Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Publication number: 20110272198Abstract: A swather tractor has a frame defined by a main tractor frame carrying the cab, engine and drive system, rear axle with castor wheels and a transverse front frame assembly mounted at a front of the main frame. The front rigid frame assembly carries the header and comprises a cross member and a pair of upstanding legs each carrying a front ground wheel hydraulically driven so that steering is controlled by the rate of forward movement of the front wheels. In order to provide improved suspension, the main frame is connected to the front frame assembly by a coupling which allows up and down suspension movement of the main frame relative to the front frame assembly.Type: ApplicationFiled: May 4, 2011Publication date: November 10, 2011Inventors: Leonard Bergman, James Thomas Dunn
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Publication number: 20110239605Abstract: In a swather formed by a tractor and attached heeder for cutting standing crop to form a swath, reel speed and optionally draper speed are controlled relative to ground speed by a control system including a manually operable input and display available to the operator. The control system can be used in an automatic mode to set an index value for an actual difference in reel speed relative to ground speed and to vary reel speed accordingly. In this mode a manually operable control varies the index. The control system can be switched by the operator to manual in which case the same control varies the actual reel speed. Minimum reel speed can be set by the same control and when operative the automatic system does not allow reel speed to fall below the minimum set value despite the values of index and ground speed.Type: ApplicationFiled: April 12, 2011Publication date: October 6, 2011Inventors: Rheal G. Remillard, James Thomas Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Patent number: 7958706Abstract: In a swather formed by a tractor and attached heeder for cutting standing crop to form a swath, reel speed and optionally draper speed are controlled relative to ground speed by a control system including a manually operable input and display available to the operator. The control system can be used in an automatic mode to set an index value for an actual difference in reel speed relative to ground speed and to vary reel speed accordingly. In this mode a manually operable control varies the index. The control system can be switched by the operator to manual in which case the same control varies the actual reel speed. Minimum reel speed can be set by the same control and when operative the automatic system does not allow reel speed to fall below the minimum set value despite the values of index and ground speed.Type: GrantFiled: April 28, 2005Date of Patent: June 14, 2011Assignee: MacDon Industries Ldt.Inventors: Rheal G. Remillard, James Thomas Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Patent number: 7849952Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driver's console is rotated in the cab with the steering and speed control elements moved with the seat for the driver to face forwards and its position is detected by switches. In the engine forward position for transportation, the control system detects the seat position and operates the controls for higher speed drive and to prevent operation of the header. The engine has a series of ratings which can be selected depending upon whether the header motor is engaged so that a highest engine speed is used only when the header is disengaged and the lower speed is used for higher fuel efficiency when the header is operating.Type: GrantFiled: August 3, 2007Date of Patent: December 14, 2010Assignee: MacDon Industries LtdInventors: Don MacGregor, Brent Gabriel, James Thomas Dunn, Leonard Bergman
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Publication number: 20080047245Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driver's console is rotated in the cab with the steering and speed control elements moved with the seat for the driver to face forwards and its position is detected by switches. In the engine forward position for transportation, the control system detects the seat position and operates the controls for higher speed drive and to prevent operation of the header. The engine has a series of ratings which can be selected depending upon whether the header motor is engaged so that a highest engine speed is used only when the header is disengaged and the lower speed is used for higher fuel efficiency when the header is operating.Type: ApplicationFiled: August 3, 2007Publication date: February 28, 2008Inventors: Don MacGregor, Brent Gabriel, James Thomas Dunn, Leonard Bergman
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Patent number: 7159687Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driver's console is rotated in the cab with the steering and speed control elements moved with the seat for the driver to face forwards and its position is detected by switches. In the engine forward position for transportation, the control system detects the seat position and operates the controls for higher speed drive and to prevent operation of the header. A vehicle emblem SMV is located on the back of the driver's seat so that it is visible to a person behind regardless of the direction of travel.Type: GrantFiled: April 28, 2005Date of Patent: January 9, 2007Assignee: MacDon Industries Ltd.Inventors: James Thomas Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Publication number: 20060213168Abstract: In a swather formed by a tractor and attached heeder for cutting standing crop to form a swath, reel speed and optionally draper speed are controlled relative to ground speed by a control system including a manually operable input and display available to the operator. The control system can be used in an automatic mode to set an index value for an actual difference in reel speed relative to ground speed and to vary reel speed accordingly. In this mode a manually operable control varies the index. The control system can be switched by the operator to manual in which case the same control varies the actual reel speed. Minimum reel speed can be set by the same control and when operative the automatic system does not allow reel speed to fall below the minimum set value despite the values of index and ground speed.Type: ApplicationFiled: April 28, 2005Publication date: September 28, 2006Inventors: Rheal Remillard, James Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Publication number: 20060201732Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driver's console is rotated in the cab with the steering and speed control elements moved with the seat for the driver to face forwards and its position is detected by switches. In the engine forward position for transportation, the control system detects the seat position and operates the controls for higher speed drive and to prevent operation of the header. A vehicle emblem SMV is located on the back of the driver's seat so that it is visible to a person behind regardless of the direction of travel.Type: ApplicationFiled: April 28, 2005Publication date: September 14, 2006Inventors: James Dunn, Don MacGregor, Brent Gabriel, Leonard Bergman
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Patent number: 7077220Abstract: A hydrostatic agricultural tractor has front ground wheels mounted on the frame at fixed angles parallel to each other and parallel to a center line of the frame and rear ground wheels mounted on a respective castor, with each of the front ground wheels being driven by a respective drive motor which allows variable speed in both the first and second directions such that steering of the tractor is effected by a differential in speed between the front wheels with the rear wheels following the steering in a castoring action. A pair of damper cylinders is provided each connected between a bracket on a rear axle of the frame and a lever in the castor plane of the castor so as to provide a damping force tending to restrict rotation of the respective second wheel about the respective vertical pivot axis with the damping force at a maximum value when the rear wheels are parallel to the center line in either the forward or reverse directions.Type: GrantFiled: November 28, 2003Date of Patent: July 18, 2006Assignee: MacDon Industries Ltd.Inventors: James Thomas Dunn, Henry Jerome Schulz, Leonard Bergman
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Publication number: 20050115746Abstract: A hydrostatic agricultural tractor has front ground wheels mounted on the frame at fixed angles parallel to each other and parallel to a center line of the frame and rear ground wheels mounted on a respective castor, with each of the front ground wheels being driven by a respective drive motor which allows variable speed in both the first and second directions such that steering of the tractor is effected by a differential in speed between the front wheels with the rear wheels following the steering in a castoring action. A pair of damper cylinders is provided each connected between a bracket on a rear axle of the frame and a lever in the castor plane of the castor so as to provide a damping force tending to restrict rotation of the respective second wheel about the respective vertical pivot axis with the damping force at a maximum value when the rear wheels are parallel to the center line in either the forward or reverse directions.Type: ApplicationFiled: November 28, 2003Publication date: June 2, 2005Inventors: James Dunn, Henry Schulz, Leonard Bergman