Patents by Inventor Vernon W. Siefring

Vernon W. Siefring 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).

  • Publication number: 20130297151
    Abstract: A materials handling vehicle automatically implements steer maneuvers when objects enter one or more zones proximate the vehicle, wherein the zones are monitored by a controller associated with the vehicle. The controller tracks objects in the zones via sensor data obtained from at least one obstacle sensor located on the vehicle and via dead reckoning. The objects are tracked by the controller until they are no longer in an environment proximate the vehicle. Different zones result in different steer maneuvers being implemented by the controller.
    Type: Application
    Filed: June 10, 2013
    Publication date: November 7, 2013
    Applicant: CROWN EQUIPMENT CORPORATION
    Inventors: Anthony T. Castaneda, William W. McCroskey, Mark E. Schumacher, Vernon W. Siefring, Timothy A. Wellman
  • Patent number: 8577551
    Abstract: A materials handling vehicle automatically implements steer maneuvers when objects enter an environment around the vehicle. A steer correction maneuver is automatically performed by steering the vehicle away from the detected object, wherein an angle of steer correction and/or a rate of change of the steering angle that is implemented to achieve a desired angle of steer correction is dependent upon how far from a reference coordinate associated with the vehicle the detected object is determined to be.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: November 5, 2013
    Assignee: Crown Equipment Corporation
    Inventors: Vernon W. Siefring, Michael Corbett
  • Publication number: 20130197760
    Abstract: A materials handling vehicle includes a power unit, a load handling assembly, at least one first obstacle detector, and at least one second obstacle detector. The at least one first obstacle detector is mounted at a first location on the power unit to detect an object located along a path of travel of the power unit beyond a non-detect zone of the at least one first obstacle detector. The at least one second obstacle detector is mounted at a second location on the power unit, spaced from the first location in a first direction, and is capable of detecting an object in the non-detect zone of the at least one first obstacle detector.
    Type: Application
    Filed: March 5, 2013
    Publication date: August 1, 2013
    Inventors: Anthony T. Castaneda, Jeffry D. Dues, Matthew M. Green, Lewis H. Manci, James F. Schloemer, Mark E. Schumacher, Vernon W. Siefring, Timothy A. Wellman, Jesse Wershing
  • Patent number: 8452464
    Abstract: A materials handling vehicle automatically applies a steer correction maneuver if an object is detected in a steer bumper zone in front of the vehicle. A controller detects whether an object is in front of the materials handling vehicle and automatically determines whether a steer correction maneuver should be to the right or left of the traveling direction of the materials handling vehicle. The materials handling vehicle automatically steer corrects the vehicle, e.g., at a determined steer angle that is opposite the direction to the detected position of the object, and accumulates the distance traveled by vehicle while steer correction is being performed. The vehicle then automatically counter steers the vehicle, e.g., by a determined steer amount, in the opposite direction as the steer correction for a percentage of accumulated steer distance traveled. After performing the counter steer maneuver, the vehicle may, for example, resume a substantially straight heading.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: May 28, 2013
    Assignee: Crown Equipment Corporation
    Inventors: Anthony T. Castaneda, William W. McCroskey, James F. Schloemer, Mark E. Schumacher, Vernon W. Siefring, Timothy A. Wellman
  • Publication number: 20130131895
    Abstract: A supplemental control system for a materials handling vehicle comprises one or more sensors capable of defining multiple contactless detection zones at least towards the front of the forward travel direction of a remotely controlled vehicle. The vehicle responds to the detection of objects within the designated zones based upon predetermined actions, such as to slow down or stop the vehicle, and/or to take other action, such as to perform a steer angle correction.
    Type: Application
    Filed: January 10, 2013
    Publication date: May 23, 2013
    Applicant: Crown Equipment Corporation
    Inventors: Edwin R. Elston, Vernon W. Siefring, Eric L. Jensen
  • Publication number: 20130124014
    Abstract: A multiple detection zone supplemental remote control system for a materials handling vehicle comprises one or more sensors capable of defining multiple contactless detection zones at least towards the front of the forward travel direction of a remotely controlled vehicle. The vehicle responds to the detection of objects within the designated zones based upon predetermined actions, such as to slow down or stop the vehicle, and/or to take other action, such as to perform a steer angle correction.
    Type: Application
    Filed: January 10, 2013
    Publication date: May 16, 2013
    Applicant: Crown Equipment Corporation
    Inventors: Edwin R. Elston, Vernon W. Siefring, Eric L. Jensen
  • Publication number: 20130124013
    Abstract: A multiple detection zone supplemental remote control system for a materials handling vehicle comprises one or more sensors capable of defining multiple contactless detection zones at least towards the front of the forward travel direction of a remotely controlled vehicle. The vehicle responds to the detection of objects within the designated zones based upon predetermined actions, such as to slow down or stop the vehicle, and/or to take other action, such as to perform a steer angle correction.
    Type: Application
    Filed: January 10, 2013
    Publication date: May 16, 2013
    Applicant: Crown Equipment Corporation
    Inventors: Edwin R. Elston, Vernon W. Siefring
  • Publication number: 20120078471
    Abstract: A materials handling vehicle automatically implements steer maneuvers when objects enter an environment around the vehicle. A steer correction maneuver is automatically performed by steering the vehicle away from the detected object, wherein an angle of steer correction and/or a rate of change of the steering angle that is implemented to achieve a desired angle of steer correction is dependent upon how far from a reference coordinate associated with the vehicle the detected object is determined to be.
    Type: Application
    Filed: October 13, 2011
    Publication date: March 29, 2012
    Inventors: Vernon W. Siefring, Michael Corbett
  • Publication number: 20110166721
    Abstract: A materials handling vehicle automatically implements steer maneuvers when objects enter one or more zones proximate the vehicle, wherein the zones are monitored by a controller associated with the vehicle. The controller tracks objects in the zones via sensor data obtained from at least one obstacle sensor located on the vehicle and via dead reckoning. The objects are tracked by the controller until they are no longer in an environment proximate the vehicle. Different zones result in different steer maneuvers being implemented by the controller.
    Type: Application
    Filed: February 23, 2011
    Publication date: July 7, 2011
    Inventors: Anthony T. Castaneda, William W. McCroskey, James F. Schloemer, Mark E. Schumacher, Vernon W. Siefring, Timothy A. Wellman
  • Publication number: 20110118903
    Abstract: A supplemental control system for a materials handling vehicle comprises a wearable control device, and a corresponding receiver on the materials handling vehicle. The wearable control device is donned by an operator interacting with the materials handling vehicle, and comprises a wireless transmitter to be worn on the wrist of the operator and a travel control communicably coupled to the wireless transmitter. Actuation of the travel control causes the wireless transmitter to transmit a first type signal designating a request to the vehicle. The receiver is supported by the vehicle for receiving transmissions from the wireless transmitter.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Applicant: CROWN EQUIPMENT CORPORATION
    Inventors: James V. Kraimer, Jay G. Pollack, Timothy A. Wellman, Lewis H. Manci, Vernon W. Siefring, Mark E. Schumacher, Matthew M. Green, Anthony T. Castaneda
  • Publication number: 20110046813
    Abstract: A materials handling vehicle automatically applies a steer correction maneuver if an object is detected in a steer bumper zone in front of the vehicle. A controller detects whether an object is in front of the materials handling vehicle and automatically determines whether a steer correction maneuver should be to the right or left of the traveling direction of the materials handling vehicle. The materials handling vehicle automatically steer corrects the vehicle, e.g., at a determined steer angle that is opposite the direction to the detected position of the object, and accumulates the distance traveled by vehicle while steer correction is being performed. The vehicle then automatically counter steers the vehicle, e.g., by a determined steer amount, in the opposite direction as the steer correction for a percentage of accumulated steer distance traveled. After performing the counter steer maneuver, the vehicle may, for example, resume a substantially straight heading.
    Type: Application
    Filed: December 30, 2009
    Publication date: February 24, 2011
    Inventors: Anthony T. Castaneda, William W. McCroskey, James F. Schloemer, Mark E. Schumacher, Vernon W. Siefring, Timothy A. Wellman
  • Publication number: 20100145551
    Abstract: A finger-mounted remote control device capable of wirelessly transmitting a travel request signal to a materials handling vehicle. The finger-mounted remote control device includes a rigid mounting structure adapted to be mounted over at least one finger of an operator's hand; a mounting strap coupled to said rigid mounting structure for securing said rigid mounting structure to the at least one finger; a wireless transmitter/power pack unit coupled to said rigid mounting structure; and control structure coupled to said mounting structure and comprising a switch adapted to be actuated by an operator's thumb so as to cause said wireless transmitter/power pack unit to generate a travel request signal to the materials handling vehicle.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 10, 2010
    Inventors: Steven R. Pulskamp, Jeffry D. Dues, Matthew M. Green, Eugene P. Horvath, James F. Schloemer, Vernon W. Siefring, Ryan M. Snodgrass, Jesse Wershing
  • Publication number: 20100114405
    Abstract: A supplemental control system for a materials handling vehicle comprises one or more sensors capable of defining multiple contactless detection zones at least towards the front of the forward travel direction of a remotely controlled vehicle. The vehicle responds to the detection of objects within the designated zones based upon predetermined actions, such as to slow down or stop the vehicle, and/or to take other action, such as to perform a steer angle correction.
    Type: Application
    Filed: December 4, 2009
    Publication date: May 6, 2010
    Inventors: Edwin R. Elston, Vernon W. Siefring, Eric L. Jensen