Patents by Inventor CRAIG THOMAS YEHLE

CRAIG THOMAS YEHLE 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: 20170122695
    Abstract: A cocking system for a crossbow. A string carrier slides along the center rail during movement with the draw string in the released configuration to a retracted position that locates the draw string in the drawn configuration. A trigger is positioned to move the catch from the closed position and the open position to fire the crossbow when the string carrier is in the retracted position. At least one cocking rope is configured to engage with the string carrier to retract the string carrier and the draw string to the drawn configuration. A retaining mechanism retains the string carrier in the retracted position and the draw string in the drawn configuration independent of the cocking ropes.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 4, 2017
    Inventor: Craig Thomas Yehle
  • Publication number: 20170108307
    Abstract: A torque control system for cocking a crossbow. A cocking mechanism includes a rotating member mounted to the center rail and coupled to a flexible tension member attached to a string carrier. A cocking handle is configured to engage with the rotating member to cock the crossbow. A torque control mechanism limits output torque applied to the rotating member such that rotating the cocking handle after the string carrier is in the retracted position does not move the draw string past the drawn configuration.
    Type: Application
    Filed: December 30, 2016
    Publication date: April 20, 2017
    Inventor: Craig Thomas Yehle
  • Publication number: 20170038173
    Abstract: A string guide for a bow including first and second cams are mounted to first and second bow limbs, respectively. Each of the cams includes a string guide journal, an upper power cable take-up journal, and a lower power cable take-up journal. The draw string is arranged in a reverse draw configuration. The upper and lower power cables are received in each of the respective upper and lower power cable take-up journals and are displaced away from the respective draw string journals as the bow is drawn from the released configuration to the drawn configuration. In one embodiment, the upper and lower power cable take-up journals are helical in configuration. As a result of this configuration the cams can rotate more than 270 degrees, and preferably more than 300 degrees, as the bow is drawn from the released configuration to the drawn configuration.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 9, 2017
    Inventor: Craig Thomas Yehle
  • Patent number: 9557134
    Abstract: A reduced friction trigger for a crossbow including a catch moveable between a closed position that retains the draw string in a drawn configuration and an open position that releases the draw string to a released configuration position such that after firing the crossbow the catch is biased to the open position. A sear is moveable between a de-cocked position and a cocked position coupled with the catch at an interface to retain the catch in the closed position such that after firing the crossbow the sear is retained in the de-cocked position by the catch, the sear being biased to the cocked position by a sear biasing force. A low friction device is located at the interface of the catch with the sear. A force sufficient to overcome frictional forces at the interface to release the catch to the open position is less than the sear biasing force.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 31, 2017
    Assignee: Ravin Crossbows, LLC
    Inventor: Craig Thomas Yehle
  • Patent number: 9494380
    Abstract: A string control assembly for a crossbow having a catch, a sear, a dry fire lockout and a trigger assembly. Engaging the draw string with the catch when in the open position after firing the crossbow generates a force that pushes the catch from the open position to the closed position and automatically (i) couples the sear with the catch at the interface to retain the catch in the closed position, and (ii) moves the dry fire lockout to the lockout position to block the sear from moving to the de-cocked position. In one embodiment, engaging the draw string with the catch automatically moves the safety to the safe position coupled with the sear to retain the sear in the cocked position.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: November 15, 2016
    Assignee: Ravin Crossbows, LLC
    Inventor: Craig Thomas Yehle
  • Patent number: 9494379
    Abstract: A crossbow including first and second cams are mounted to first and second bow limbs, respectively. Each of the cams includes a string guide journal, an upper power cable take-up journal, and a lower power cable take-up journal. The draw string is arranged in a reverse draw configuration. The upper and lower power cables are received in each of the respective upper and lower power cable take-up journals and are displaced away from the respective draw string journals as the bow is drawn from the released configuration to the drawn configuration. In one embodiment, the upper and lower power cable take-up journals are helical in configuration. As a result of this configuration the cams can rotate more than 270 degrees, and preferably more than 300 degrees, as the crossbow is drawn from the released configuration to the drawn configuration.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: November 15, 2016
    Assignee: Ravin Crossbows, LLC
    Inventor: Craig Thomas Yehle
  • Publication number: 20160273870
    Abstract: A system for cocking mechanism for a crossbow that uses an elongated handle pivotally attached to the center support to move a traveler engaged with the draw string from a release configuration to a drawing configuration and into engagement with a trigger assembly. A ratcheting mechanism prevents the elongated handle from moving toward the open configuration as the crossbow is being cocked.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Larry Pulkrabek, Jay Engstrom, Craig Thomas Yehle, Aaron Pellett, Matthew P. Haas, Fred H. Hunt
  • Publication number: 20160223285
    Abstract: A crossbow including first and second cams are mounted to first and second bow limbs, respectively. Each of the cams includes a string guide journal, an upper power cable take-up journal, and a lower power cable take-up journal. The draw string is arranged in a reverse draw configuration. The upper and lower power cables are received in each of the respective upper and lower power cable take-up journals and are displaced away from the respective draw string journals as the bow is drawn from the released configuration to the drawn configuration. In one embodiment, the upper and lower power cable take-up journals are helical in configuration. As a result of this configuration the cams can rotate more than 270 degrees, and preferably more than 300 degrees, as the crossbow is drawn from the released configuration to the drawn configuration.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventor: Craig Thomas Yehle
  • Patent number: 9383159
    Abstract: A de-cocking mechanism for a bow having an energy storage assembly mounted to a center support with a draw string that extends across the center support coupled to the energy storage assembly. The bow includes a trigger assembly that retains the draw string in a drawn configuration. The de-cocking mechanism includes a de-cocking actuator that automatically releases the draw string onto the de-cocking mechanism when the de-cocking mechanism engages with the trigger assembly. The user can then manually move the draw string from the drawn configuration to a released configuration. The de-cocking mechanism is preferably combined with a cocking mechanism.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 5, 2016
    Assignee: Ravin Crossbows, LLC
    Inventors: Larry Pulkrabek, Jay Engstrom, Craig Thomas Yehle, Aaron Pellett, Matthew P. Haas, Fred H. Hunt
  • Patent number: 9354015
    Abstract: A string guide for a bow having a reverse draw configuration with a draw string located adjacent a down-range side of the bow in a released configuration. First and second string guides rotate around first and second axes, respectively, as the draw string is displaced from the released configuration to the drawn configuration. A first power cable take-up journal on the first string guide rotates around the first axis to take up a power cable. The first power cable take-up journal includes a width measured along the first axis at least twice a width of the first power cable. The first power cable is biased away from at least the draw string. The first power cable is translated along the first power cable take-up journal as the bow is drawn from the released configuration to the drawn configuration.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: May 31, 2016
    Assignee: Ravin Crossbows, LLC
    Inventor: Craig Thomas Yehle
  • Patent number: 9255753
    Abstract: An energy storage portion for a bow and a method of configuring the same. At least one first limb has both a distal portion and a proximal portion coupled to the first side of a center support. At least one second limb has both a distal portion and a proximal portion coupled to the second side of the center support. At least one first pulley is attached to the first limb at a location between the distal and the proximal portions of the first limb and at least one second pulley is attached to the second limb at a location between the distal and the proximal portions of the second limb.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 9, 2016
    Assignee: RAVIN CROSSBOWS, LLC
    Inventors: Larry Pulkrabek, Jay Engstrom, Craig Thomas Yehle, Aaron Pellett, Matthew P. Haas, Fred H. Hunt
  • Publication number: 20150168093
    Abstract: A string guide for a bow having a reverse draw configuration with a draw string located adjacent a down-range side of the bow in a released configuration. First and second string guides rotate around first and second axes, respectively, as the draw string is displaced from the released configuration to the drawn configuration. A first power cable take-up journal on the first string guide rotates around the first axis to take up a power cable. The first power cable take-up journal includes a width measured along the first axis at least twice a width of the first power cable. The first power cable is biased away from at least the draw string. The first power cable is translated along the first power cable take-up journal as the bow is drawn from the released configuration to the drawn configuration.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: FIELD LOGIC, INC.
    Inventor: CRAIG THOMAS YEHLE
  • Publication number: 20140261360
    Abstract: A de-cocking mechanism for a bow having an energy storage assembly mounted to a center support with a draw string that extends across the center support coupled to the energy storage assembly. The bow includes a trigger assembly that retains the draw string in a drawn configuration. The de-cocking mechanism includes a de-cocking actuator that automatically releases the draw string onto the de-cocking mechanism when the de-cocking mechanism engages with the trigger assembly. The user can then manually move the draw string from the drawn configuration to a released configuration. The de-cocking mechanism is preferably combined with a cocking mechanism.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 18, 2014
    Applicant: Field Logic, Inc.
    Inventors: Larry Pulkrabek, Jay Engstrom, Craig Thomas Yehle, Aaron Pellett, Matthew P. Haas, Fred H. Hunt
  • Publication number: 20140261358
    Abstract: An energy storage portion for a bow and a method of configuring the same. At least one first limb has both a distal portion and a proximal portion coupled to the first side of a center support. At least one second limb has both a distal portion and a proximal portion coupled to the second side of the center support. At least one first pulley is attached to the first limb at a location between the distal and the proximal portions of the first limb and at least one second pulley is attached to the second limb at a location between the distal and the proximal portions of the second limb.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: FIELD LOGIC, INC.
    Inventors: LARRY PULKRABEK, JAY ENGSTROM, CRAIG THOMAS YEHLE, AARON PELLETT, MATTHEW P. HAAS, FRED H. HUNT