Patents by Inventor Stephan R. Hayden

Stephan R. Hayden 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: 11808347
    Abstract: An automatic park lock for an off road or recreational utility vehicle includes a shift interlock solenoid with a spring biased plunger engaging and locking an operator shift lever in the park position. A cam surface on the operator shift lever slopes between a first end and a second end, and has a groove to lock the plunger to the park position. A controller energizes the shift interlock solenoid to retract the plunger when a plurality of operating parameters are satisfied.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: November 7, 2023
    Assignee: DEERE & COMPANY
    Inventors: Stephan R. Hayden, Donald W. Ertmer, Nathan L. Yolitz
  • Publication number: 20230066305
    Abstract: An automatic park lock for an off road or recreational utility vehicle includes a shift interlock solenoid with a spring biased plunger engaging and locking an operator shift lever in the park position. A cam surface on the operator shift lever slopes between a first end and a second end, and has a groove to lock the plunger to the park position. A controller energizes the shift interlock solenoid to retract the plunger when a plurality of operating parameters are satisfied.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Stephan R. Hayden, Donald W. Ertmer, Nathan L. Yolitz
  • Patent number: 9863512
    Abstract: A continuously variable transmission belt guide is mounted next to a driven clutch assembly and in close proximity with the CVT belt at the CVT's lowest drive ratio. The CVT belt connects between a pair of moveable sheaves of the drive and driven clutch assemblies to provide a variable CVT drive ratio between a lowest drive ratio and a highest drive ratio. When contacting the CVT belt, the CVT belt guide prevents a ripple or wave from appearing in the un-tensioned side of the belt, prevents the CVT belt from losing contact with the driven clutch, and prevents undesirable vehicle performance at the lowest drive ratio.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: January 9, 2018
    Assignee: Deere & Company
    Inventors: Nathan Yolitz, Stephan R. Hayden
  • Publication number: 20170045122
    Abstract: A continuously variable transmission belt guide is mounted next to a driven clutch assembly and in close proximity with the CVT belt at the CVT's lowest drive ratio. The CVT belt connects between a pair of moveable sheaves of the drive and driven clutch assemblies to provide a variable CVT drive ratio between a lowest drive ratio and a highest drive ratio. When contacting the CVT belt, the CVT belt guide prevents a ripple or wave from appearing in the un-tensioned side of the belt, prevents the CVT belt from losing contact with the driven clutch, and prevents undesirable vehicle performance at the lowest drive ratio.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Nathan Yolitz, Stephan R. Hayden
  • Patent number: 8939248
    Abstract: Utility vehicle transmission controls include a common pivot shaft extending transversely across at least part of the operator station. The common pivot shaft has an integral collar. A shift lever has a sleeve pivotably mounted on the common pivot shaft with a portion of the sleeve extending over the integral collar. A differential lock lever has a lower end with a sleeve pivotably mounted on the common pivot shaft with a portion extending over the integral collar adjacent the shift pivot so that the shift lever and differential lock lever independently pivot.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: January 27, 2015
    Assignee: Deere & Company
    Inventors: Brian David Seegert, William Thomas Ladwig, Stephan R. Hayden
  • Patent number: 8323153
    Abstract: An interlock circuit for a utility vehicle park brake includes a relay connected to neutral switch on a transmission. The relay is actuated by electric current to move a contact to a closed position if the neutral switch is out of neutral. A throttle pedal switch connected to the relay moves a contact to a closed position if the throttle pedal is depressed. A park brake switch connected to the throttle pedal switch moves a contact to a closed position if the park brake is engaged. Closing all of the contacts grounds an ignition circuit connected to the interlock circuit, which may be a magneto ignition circuit.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: December 4, 2012
    Assignee: Deere & Company
    Inventors: Darren D. Deblack, Stephan R. Hayden
  • Publication number: 20120266710
    Abstract: Utility vehicle transmission controls include a common pivot shaft extending transversely across at least part of the operator station. The common pivot shaft has an integral collar. A shift lever has a sleeve pivotably mounted on the common pivot shaft with a portion of the sleeve extending over the integral collar. A differential lock lever has a lower end with a sleeve pivotably mounted on the common pivot shaft with a portion extending over the integral collar adjacent the shift pivot so that the shift lever and differential lock lever independently pivot.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Inventors: Brian David Seegert, William Thomas Ladwig, Stephan R. Hayden
  • Patent number: 8235155
    Abstract: A radiator mounting arrangement on a utility vehicle with an injection molded top tank and bottom tank, the top tank having a plurality of integrally molded features extending upwardly therefrom. A wire form is attached to a frame member of the utility vehicle and engages the integrally molded features without fasteners.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: August 7, 2012
    Assignee: Deere & Company
    Inventors: Brian D. Seegert, Stephan R. Hayden, Brent L. Streeter
  • Publication number: 20110256982
    Abstract: An interlock circuit for a utility vehicle park brake includes a relay connected to neutral switch on a transmission. The relay is actuated by electric current to move a contact to a closed position if the neutral switch is out of neutral. A throttle pedal switch connected to the relay moves a contact to a closed position if the throttle pedal is depressed. A park brake switch connected to the throttle pedal switch moves a contact to a closed position if the park brake is engaged. Closing all of the contacts grounds an ignition circuit connected to the interlock circuit, which may be a magneto ignition circuit.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 20, 2011
    Inventors: Darren D. Deblack, Stephan R. Hayden
  • Publication number: 20100300783
    Abstract: A radiator mounting arrangement on a utility vehicle with an injection molded top tank and bottom tank, the top tank having a plurality of integrally molded features extending upwardly therefrom. A wire form is attached to a frame member of the utility vehicle and engages the integrally molded features without fasteners.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 2, 2010
    Inventors: Brian D. Seegert, Stephan R. Hayden, Brent L. Streeter
  • Patent number: 6533053
    Abstract: A quick detachable drive shaft for use with lawn tractors having a rearward end mounted to a power source and a forward end supported by a bearing detachably mounted to a plate that is detachably connected to a bracket on the tractor with a latch that maintains the plate in connection with the bracket in a first position and releases the plate from the bracket in second position.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: March 18, 2003
    Assignee: Deere & Company
    Inventor: Stephan R. Hayden
  • Publication number: 20030029666
    Abstract: A quick detachable drive shaft for use with lawn tractors having a rearward end mounted to a power source and a forward end supported by a bearing detachably mounted to a plate that is detachably connected to a bracket on the tractor with a latch that maintains the plate in connection with the bracket in a first position and releases the plate from the bracket in second position.
    Type: Application
    Filed: August 8, 2001
    Publication date: February 13, 2003
    Inventor: Stephan R. Hayden