Nock-point Locator Patents (Class 124/91)
  • Patent number: 11768060
    Abstract: A pin nock assembly comprises a pin and nock. The pin includes a pin base, a pin element positioned laterally away from the pin base, and a pin collar positioned between the pin base and pin element. The pin element protrudes laterally from the pin collar along a central axis. The central axis extends from a center of the pin base through a center of the pin element. The nock includes a nock base and a string interface positioned laterally away from the nock base. The nock base defines a pin cavity complementary to and configured to receive the pin element. A base portion of the nock base is positioned around the pin cavity and is configured to abut the pin collar when the pin element is inserted into the pin cavity. The string interface is configured to contact a string of a crossbow.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: September 26, 2023
    Assignee: Kirsch LLC
    Inventor: Phillip Kirsch
  • Publication number: 20140087896
    Abstract: An improved nocking system for archery wherein the bow string is magnetically held within a U-shaped channel in the nock attached to the rearward end of an arrow.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Inventors: TRUMAN R. TORKELSON, Glyn P. McCord
  • Publication number: 20140083406
    Abstract: One or more techniques and/or systems are disclosed for a nock device that may be used on an arrow. A top portion a nock device can comprise one or more pairs of string guide impression on its top surface, where the respective one or more pairs of string guide impressions may be symmetrically arranged on the top surface, with respect to each other. A first pair of string guide impression can be disposed along a first bisecting line on the top surface, and, if present, a second pair of string guide impressions can be disposed along a second bisecting line on the top surface. The respective one or more pairs of string guide impression can be configured to receive a bowstring, where the first pair may receive the bowstring in a first orientation, and the second pair, if present, may receive the bowstring in a second orientation.
    Type: Application
    Filed: November 27, 2013
    Publication date: March 27, 2014
    Applicant: Hunter's Manufacturing Company, Inc. d/b/a TenPoint Crossbow Technologies
    Inventors: Richard L. Bednar, Michael J. Shaffer, Jacob A. Hout
  • Patent number: 8109261
    Abstract: A speed nock for use with an archery bow includes a first enlarged portion and a second enlarged portion connected via a central portion. The central portion has a maximum dimension smaller than maximum dimensions of the first and second enlarged portions. The central portion is positioned between strands of a bowstring of the bow so that the strands pinch the central portion, at least assisting in holding the speed nock in place along the bowstring. The speed nock can be moved along the bowstring to a selected location that maximizes energy imparted to an arrow shot from the archery bow, and thus the speed of the arrow. A related method of using the speed nock above is also provided.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: February 7, 2012
    Assignee: Grace Engineering Corp.
    Inventor: Louis Grace, Jr.
  • Patent number: 7721721
    Abstract: An archery bow having a riser, a pair of flexible limbs extending from the riser, with each limb having a rotating member on an axel secured to the end thereof. At least one of the rotating members is a cam having a module secured thereto. The module is positionable with respect to the cam by translational movement and is also positionable on the cam with an opposite face against the cam to selectively provide a desired draw length.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: May 25, 2010
    Assignee: Precision Shooting Equipment, Inc.
    Inventors: David H. Kronengold, Allen C. Rasor, Jr.
  • Patent number: 6925996
    Abstract: A bowstring release aid has a string loop. The release aid is mounted on a bowstring and drawn to an arrow release position by a hand-held string release device. The hand-held release device releases the string loop so that both the bowstring with the release aid propels the arrow.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: August 9, 2005
    Inventor: Gary J. Todd
  • Patent number: 6712060
    Abstract: A bow string loop release including a flexible strand having two opposing and spaced-apart loop ends connected by a durable center release engagement portion. The preferred bow string loop release includes a center release engagement portion formed of a resilient, tough yet pliable strand or construction. The opposing first and second loop ends are formed of a material or by a method that results in a loop end sufficiently pliable to permit configuration of the first and the second loop ends as first and second slip hitches for securing the bow string loop release to a bow string.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: March 30, 2004
    Assignee: Archery Technologies Inc.
    Inventor: Ralph R. Egusquiza
  • Publication number: 20040035406
    Abstract: A bow string loop release including a flexible strand having two opposing and spaced-apart loop ends connected by a durable center release engagement portion. The preferred bow string loop release includes a center release engagement portion formed of a resilient, tough yet pliable strand or construction. The opposing first and second loop ends are formed of a material or by a method that results in a loop end sufficiently pliable to permit configuration of the first and the second loop ends as first and second slip hitches for securing the bow string loop release to a bow string.
    Type: Application
    Filed: August 23, 2002
    Publication date: February 26, 2004
    Inventor: Ralph R. Egusquiza
  • Patent number: 6478700
    Abstract: A new device incorporated in an arrow causes the arrow to spin as it leaves the bow. The arrow spin device comprises a screw shaft which is cylindrical at the leading and trailing ends thereof and inserted in the posterior end of the arrow shaft. A rotary spin is imparted to the arrow shaft about its longitudinal axis at initial bow string release by engagement of the screw shaft with a guide integral with the arrow shaft. As the screw shaft becomes fully inserted into the arrow shaft in response to the bow string's force, the arrow shaft becomes free to rotate about anterior and posterior cylindrical surfaces on the screw shaft. Upon release from the bow string, the arrow shaft is rotating and the arrow will travel faster and with less deviation by virtue of the ballistic spin imparted. This spin allows the arrow to avoid the need for external fletching.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: November 12, 2002
    Inventor: David Hartman
  • Patent number: 6364499
    Abstract: An apparatus for illuminating an archer's arrow that provides a nock adapted to receive a bowstring in a drawn position wherein a light source disposed withing the nock is activated when the bowstring is released from the drawn position. The nock provides a slot which is adapted to receive the bowstring. The slot provides a first widening portion adapted to receive the bowstring in a drawn position, and a second widening portion adapted to receive the bowstring when the bowstring is released from the drawn position. The nock also provides a bore which intersects at least a portion of the second widening portion of the slot. The light source is preferably a chemi-luminescent light stick which fits snugly within the bore of the nock. The bowstring engages and activates the light stick when the bowstring is released from the drawn position.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 2, 2002
    Assignee: Zephyr Archery Products, Co.
    Inventor: Thomas M. Jones
  • Patent number: 6343600
    Abstract: A protective member for an archer's fingers has a cylindrical sleeve terminating at one end in an enlarged head having an arcuately convex surface. Two of the members are arranged on an archer's bowstring so that the heads confront one another and are capable of engaging the nock end of an arrow shaft on opposite sides of the latter. The archer's fingers engage the undersurfaces of the heads, rather than the arrow shaft, thereby preventing injury to the archer's fingers.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: February 5, 2002
    Inventor: Jeremy L. Steinman
  • Patent number: 6234158
    Abstract: Disclosed is a new bow nock device for use with a conventional release aid for extending the useful life of a bowstring by eliminating wear caused by the release aid and additionally for improving accuracy by aligning an arrow directly in front of the release aid to maintain the arrow at a 90 degree angle relative the longitudinal axis of the bow during the entire arrow release process. The bow nock device comprises a U-shaped member attachable to the bowstring for gripping by the release aid and for positioning a nocked end of the arrow between the ends thereof. The U-shaped member has a bowstring receiving groove formed on each end, each groove having a flared mouth for preventing bowstring chafing, and internal facing protrusions co-pending with the end of the arrow for stabilizing the same. Two fastening plates, attached to the U-shaped member with flat head machine screws, hold the bowstring within the bowstring receiving grooves whereby clampedly retaining the bowstring within the grooves.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: May 22, 2001
    Inventor: Daniel A. Summers
  • Patent number: 6213114
    Abstract: A nock for use with an arrow includes a receiver having a bowstring engaging notch with a pin extending thereacross to capture and retain the bowstring within the notch and an insert permanently attached to an arrow shaft for disengageably engaging the receiver. A retention device, such as a magnet attached to the receiver, magnetically cooperating with a magnetically responsive member attached to the insert, retains the arrow shaft in engagement with the bowstring as the bowstring is pulled back. Upon release of the bowstring, the forward momentum of the arrow overcomes the retention force of the retention device and the arrow shaft disengages from the receiver to begin its flight.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: April 10, 2001
    Inventor: Christopher L. Burkhart
  • Patent number: 5904135
    Abstract: A bowstring nock and rope release loop assembly for attachment to a bowstring includes a bowstring nock having a pair of axially spaced bowstring attachment portions connected by a rigid cross-support; and a rope release loop adapted to be secured to the bowstring at opposite ends of the bowstring nock, closely adjacent the attachment clamps.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: May 18, 1999
    Assignee: Gregory E. Summers
    Inventors: Gregory E. Summers, Randy Summers, Jack Tyree
  • Patent number: 5850827
    Abstract: The invention provides an arrow nock receiver that forms a barrier around an arrow nock seated therein and physically separates the area in which the arrow nock seats from the area in which a bow string release may be attached. The receiver is defined by an arrow nock protection portion and a bow string release attachment portion. These portions are isolated from one another to prevent a bow string release from inadvertently dislodging an arrow nock seated within the receiver. The arrow nock portion is comprised of an open-mouthed first frame with opposing ends and an arcuate section. Disposed within the arcuate section is a flange. The flange is narrow enough to permit an arrow nock to seat over it, yet wide enough to prevent attachment of a release device. The bow string release attachment portion of the invention is comprised of a second frame integrally formed with, although offset from, the first frame of the arrow nock protection portion.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Tru-Fire Corporation
    Inventor: Paul L. Peck
  • Patent number: 5787870
    Abstract: A bowstring nock has a first half section provided with a first bowstring half groove extending in a first direction and a first fastener hole extending in a second direction, perpendicular to the first direction; a second half section provided with a second bowstring half groove extending in the first direction and cooperable with the first half groove to grip a bowstring therebetween, and a second fastener hole adapted for alignment with the first fastener hole to receive a fastener and thereby secure the first and second half sections together. One of the first and second half sections also includes a tab extending in the first direction a distance greater than a length dimension of the first and second half grooves, to assist in orienting a peep sight device mounted on the bowstring, above the nock.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: August 4, 1998
    Assignee: Gregory E. Summers
    Inventors: Gregory E. Summers, William G. Mayes
  • Patent number: 5715805
    Abstract: A single ball release nock for a bowstring is adapted for use with a single ball release device. The ball release nock includes a first ball portion having a first bowstring groove extending in a first direction; and an alignment tail portion adapted for interengagement with the ball portion and having a second bowstring groove adapted to cooperate with the first bowstring groove to form an elongated bowstring aperture. The alignment tail portion includes a tail projecting in a direction parallel to the bowstring aperture and extending beyond the ball portion in the first direction. A second embodiment includes a second ball portion at the opposite end of the tail portion for use with a double ball release device.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: February 10, 1998
    Assignee: Gregory E. Summers
    Inventors: Gregory E. Summers, William G. Mayes
  • Patent number: 5680851
    Abstract: An arrow release and bow string nock system includes a bow string nock mounted on a bow string adapted to position a tail end of an arrow on the bow string; the bow string nock comprising a substantially spherical ball formed in two pieces and secured about the bow string by one or more fasteners with the bow string passing through a hole formed in the nock. An associated release device includes a pair of spring biased gripping arms pivotally secured within a housing and movable between grip and release positions by a trigger. The gripping arms each have a substantially semispherical socket for engaging the substantially spherical ball nock. The release device may also be designed for use with a pair of ball nocks bracketing the tail end of an arrow.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: October 28, 1997
    Inventor: Gregory E. Summers
  • Patent number: 5537986
    Abstract: Disclosed is a new bow nock device for use with a conventional release aid for extending the useful life of a bowstring by eliminating wear caused by the release aid and additionally for improving accuracy by aligning an arrow directly in front of the release aid to maintain the arrow at a 90.degree. angle relative the longitudinal axis of the bow during the entire arrow release process. The bow nock device comprises a U-shaped member attachable to the bowstring for gripping by the release aid and for positioning a nocked end of the arrow between the ends thereof. The U-shaped member has a bowstring receiving groove formed on each end, each groove having a flared mouth for preventing bowstring chafing, and internal facing protrusions co-pending with the end of the arrow for stabilizing the same. Two fastening plates, attached to the U-shaped member with flat head machine screws, hold the bowstring within the bowstring receiving grooves whereby clampedly retaining the bowstring within the grooves.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: July 23, 1996
    Inventor: Daniel A. Summers
  • Patent number: 5499620
    Abstract: A center nock for a bow string of an archery bow includes a substantially C-shaped body portion having spaced ends extending substantially linearly therefrom. The ends are formed with first respectively axially aligned half groove portions adapted for engagement with the bow string. A cross support bar is secured to the spaced ends, the support bar including second respectively aligned half groove portions which cooperate with the first respectively aligned groove portions to form a pair of closed apertures fully encircling the bow string.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: March 19, 1996
    Inventor: Gregory E. Summers
  • Patent number: 5390657
    Abstract: A nock set for an archery bow is structured with contact surfaces which register with the spiraling inclined plane surface configuration of the serving on the bowstring, thereby facilitating elevational adjustments of the nock set.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: February 21, 1995
    Assignee: Browning
    Inventor: Marlow W. Larson
  • Patent number: 5361747
    Abstract: A nocking system for use in archery includes a plastic nock element at the end of an arrow and a plastic nocking member carried on a bowstring to cooperate with the nock element when the arrow is shot. The nock element has a spherically concave receptacle between a pair of nock wings. The nocking member is spherically convex and fits into the receptacle. Such an arrangement permits the nock element and the nocking member to rotate relative to one another in any direction, which improves accuracy when the arrow is shot while protecting the bowstring from wear. The nocking member may be a ball with a central bore which is threaded so that the archer can screw the ball to a desired position on a nocking region of the bowstring, the bowstring having a yarn winding at the nocking region. The nocking member may also be two ball-halves that are joined together at the nocking region between two yarn windings. The nocking wings of the nock element have tabs which grip the ball.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: November 8, 1994
    Assignee: "Amerika-Bogen" Handelsgesellschaft mbH
    Inventor: Roberto Laabs
  • Patent number: 5287842
    Abstract: There is described a nocking point assembly in which two differing plastics compositions are used in nocking point components. A softer, elastomeric first material physically engages the bowstring to provide enhanced, non-damaging gripping, while an oversleeved, second arrow-nock-contacting component of a harder plastics composition serves to ensure wear resistance in use. Each component is in the form of a hub-like disc with an integrally-joined tubular shank, the disc and the shank being slit to obviate any need to detach the bowstring when mounting the nocking point components. A separate split or open metallic ring is crimped in place over the intersleeved shanks to secure the assembly as a unit. The slits in the plastic elements, as assembled, are preferably misaligned and are staggered with the split in the locking ring to establish and preserve a round cross-sectional configuration.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: February 22, 1994
    Assignee: Saunders Archery Company
    Inventor: Charles A. Saunders
  • Patent number: 5137007
    Abstract: A shooting control system for bows and arrows that cooperates with front sight pins including a bowstring sight having a base mounted in the strands of the bowstring and sight inserts selectively mounted on the base for the user to sight through using the front sight pins to aim an arrow being shot in the bow. The system also includes an arrow nok on the bowstring at the arrow noking point.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: August 11, 1992
    Inventors: Robert C. Shoemake, Jesse Morehead
  • Patent number: 5092308
    Abstract: An archery bow is provided with a tubular sight 15 with internal distance adjustment, a bowstring handle 2 with a trigger-release and a hand anchor 1 for holding the bowstring until released. An arrow-centering indentation 16 with resilient centering means 13-14 is provided at the opposite side of the bow from a bow handle 32 extended in a manner that the bow can be held horizontally like a crossbow for greater stability, convenience and ease of operation.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: March 3, 1992
    Inventor: Thomas H. Sheffield
  • Patent number: 5018747
    Abstract: The bladed projectile dart disclosed has a bladed head that has a plurality of separable blades that allow for individual replacement. The dart has a hollow shaft that surrounds a draw line which allows for pulling back the projectile when it is mounted in a special slingshot launching device. The draw line is attached at one end to a hub that maintains the blades in formation. The blades are detachable from this hub when the head is lodged in a target. The other end of the blades have a pointed cap that is threadedly mounted to the blade tips. Also described are various launching mechanisms for launching the darts.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: May 28, 1991
    Inventor: Jim W. Brown
  • Patent number: 5016603
    Abstract: A cushioned nock is mounted on a bow string to be between the arrow and a bow string release device. The cushioned nock comprises an elastomeric cylinder having an axial hole to receive the bow string. The cylinder is slit to permit the cylinder to be spread open for mounting on the string. A split ring fits in an external groove on the cylinder and is squeezed to clamp the cylinder on the string. The cylinder has a flange at each end to prevent damage to the arrow or the release. A similar cushioned nock or a conventional plastic lined, clamp type nock is mounted on the string above the arrow to fix the nocking point on the string. It is preferred to use a cushioned nock on each side of the nocking point (the point engaged by the arrow nock). Another cushioned nock can be mounted below the release device to allow mounting the device on the string pending use.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: May 21, 1991
    Assignee: Tru-Fire Corporation
    Inventor: Lynn A. Tentler
  • Patent number: 4981128
    Abstract: A bowstring release device has a female part adapted to be fastened to the wrist of an archer and a male part adapted to be fastened to the bowstring. The male part is adapted to be received by the female part and held therein by a keeper until it is released by actuating a triggered release mechanism. The female part also has bowstring-receiving slots so that it can be used with a bow that does not have a male member attached to the bowstring. The female part has a universal joint interposed between it and the device used to fasten it to the wrist of the archer.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: January 1, 1991
    Inventor: Geary L. Garvison
  • Patent number: 4974576
    Abstract: A method and apparatus for precisely positioning various components of a compound bow is accomplished through the use of a device which adjustably, but securely, holds a compound bow in either a vertical orientation for the positioning of the nock or a horizontal orientation for the positioning of the arrow shelf, sights and pulleys. The method and apparatus of the present invention effectively alleviates the built-in inaccuracies in shooting an arrow. More specifically, the user can accurately position the nock on the main bow string, precisely align the arrow shelf with the main bow string, accurately align the sight bar on the bow with the peep sight on the main bow string, and check the accuracy of the alignment of the pulleys.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: December 4, 1990
    Assignee: Harry D. Morey
    Inventors: Harry D. Morey, Thomas E. Giesken
  • Patent number: 4930485
    Abstract: An archery bow system includes a bow, a bow string attached to the bow, a center nock attached to the bow string having a half loop with two ends attached to the bow string, and a hand held bow string drawing device which includes a releasable draw pin that engages with the half loop, and a trigger connected with the draw pin to release the bow string upon operation of the trigger.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: June 5, 1990
    Assignee: Kopher Precision Instruments, Inc.
    Inventor: Hermann Kopper
  • Patent number: 4909233
    Abstract: An adjustable threaded nock set (10) having a pair of serving nuts (11) and (12) having longitudinal bores therethrough. Each bore is threaded to engage monofilament serving (5) of bow string (4). Nuts (11) and (12) are installed onto serving (5) and tightened together at the proper location in a lock nut arrangement.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: March 20, 1990
    Inventor: William R. Stephenson
  • Patent number: 4895129
    Abstract: An archery peep sight apparatus with a sight mechanism in the form of a polyhedron adapted to be mounted in strands of an archery bowstring for sighting an arrow on a target. The polyhedron shaped peep sight has centrally located sight openings in each of four vertical faces parallel to a longitudinal axis of the bowstring. A peep sight turner for use with the peep sight mechanism and generally in the shape of a hexagonal disc is adapted for mounting on the bowstring at a position generally above a nocking point of the bowstring but below the peep sight mechanism. The peep sight mechanism is used to establish proper arrow trajectory even after the peep sight rotates out of its original line of sight alignment during the process of drawing the bow string into a cocked position. The peep sight turner is used to adjust the line of sight alignment of the peep sight to obtain the optimum viewing characteristics of the peep sight which may have rotated during the drawing process.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: January 23, 1990
    Inventor: Roger G. Hedgpeth
  • Patent number: 4656994
    Abstract: A bow system that includes a release mechanism that engages simultaneously a spool on the bowstring and a nock on the arrow that are arranged to automatically hold the arrow centered during the arrow drawing and release procedures. A rear sight is further mounted upon the bowstring that has an eyelet threaded into a swage lock to the string. The eyelet can be turned to any alignment desired and locked in place using a locking nut.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: April 14, 1987
    Inventor: Charles C. Jenks
  • Patent number: 4201183
    Abstract: A bow having a rigid handle section and a pair of resiliently and flexibly recurved limb sections, with limb tip nocks and bowstring.The bow has self-holding, cock position of higher brace for the retention of potential energy. The bow is selectively releasable from such cock position to another position of lower brace for the delivery of such potential energy.The limb may have a slot in the direction of string travel for the free passage of the bowstring therethrough.The bowstring includes a bowstring length related to limb characteristic and where applicable also includes a design to provide such free and direct path by a bifurcation or a division of the string, spaced by an enlargement of the limb nocking sections for passage of the string portions on either side of the limbs, such space being maintained for a sufficient distance by a yoke means adjacent to a central arrow nocking section wherein the string portions are undivided.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: May 6, 1980
    Inventor: Lawrence E. Bodkin
  • Patent number: 4151825
    Abstract: An arrow release mechanism having opposed pivotal jaws with substantially hemispherical sockets on facing sides for releasable reception of a substantially spherical arrow nock. One embodiment includes a pivotal trigger for locking and unlocking the jaws in their nock grasping position and a universally coupled handle. A second embodiment includes two linkage members for locking and unlocking the jaws.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: May 1, 1979
    Inventor: Thomas H. Cook
  • Patent number: 4134369
    Abstract: An arrow release mechanism formed of only eight separate parts, such mechanism including a handle, a pair of opposed jaws pivotally coupled to the handle, and a trigger, pivotally coupled to the jaws, for releasing a locking assembly to thereby release a substantially spherical arrow nock grasped in substantially hemispherical sockets in the jaws. The pivotal coupling of the jaws and the handle together with the reception of the substantially spherical nock in the substantially hemispherical sockets provides a universal coupling between the arrow and the handle so that relative movement therebetween during aiming of the arrow will not mar the accuracy of the aiming.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: January 16, 1979
    Inventor: Thomas H. Cook
  • Patent number: RE36555
    Abstract: A cushioned nock is mounted on a bow string to be between the arrow and a bow string release device. The cushioned nock comprises a.[.n elastomeric.]. .Iadd.compressible .Iaddend.cylinder having an axial hole to receive the bow string. The cylinder is slit to permit the cylinder to be spread open for mounting on the string. A split ring fits in an external groove on the cylinder and is squeezed to clamp the cylinder on the string. The cylinder has a flange at each end to prevent damage to the arrow or the release. A similar cushioned nock or a conventional plastic lined, clamp type nock is mounted on the string above the arrow to fix the nocking point on the string. It is preferred to use a cushioned nock on each side of the nocking point (the point engaged by the arrow nock). Another cushioned nock can be mounted below the release device to allow mounting the device on the string pending use.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: February 8, 2000
    Assignee: Tru-Fire Corporation
    Inventor: Lynn A. Tentler