And Vane Structure (i.e., Flight Guiding Or Stabilizing Means) Patents (Class 473/585)
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Patent number: 12215961Abstract: A matched arrow set including a first arrow and a second arrow. The first arrow including: a first shaft, a first bushing coupled to the first shaft, and a first nock received in the first bushing. The second arrow including: a second shaft, a second bushing coupled to the second shaft, and a second nock received in the second bushing. The first shaft and the first bushing define a first weight, the second shaft and the second bushing define a second weight greater than the first weight, and a first arrow weight is substantially the same as a second arrow weight.Type: GrantFiled: January 13, 2023Date of Patent: February 4, 2025Assignee: Ravin Crossbows, LLCInventors: Craig Yehle, Fred H. Hunt, Larry Pulkrabek
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Patent number: 11971245Abstract: The present disclosure describes a broadhead for an arrow. The broadhead includes a first portion, as defined along a longitudinal axis of the broadhead. The first portion includes multiple cutting walls that extend radially from the longitudinal axis and define a first plurality of voids between the cutting walls. The outer edges of the cutting walls form edges of a generally pyramid-shaped volume that includes the first portion and the first plurality of voids. The broadhead also includes a second portion that abuts the first portion. The second portion includes multiple concave lopes defining a second plurality of voids. The concave lobes have an inner surface that extends radially outward from the first end along the longitudinal axis to an opposite, second end of the second portion.Type: GrantFiled: April 21, 2023Date of Patent: April 30, 2024Assignee: ANNIHILATOR BROADHEADS, LLCInventors: Brandon Brodie, Micah Brown
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Patent number: 11656064Abstract: The present disclosure describes a broadhead for an arrow. The broadhead includes a first portion, as defined along a longitudinal axis of the broadhead. The first portion includes multiple cutting walls that extend radially from the longitudinal axis and define a first plurality of voids between the cutting walls. The outer edges of the cutting walls form edges of a generally pyramid-shaped volume that includes the first portion and the first plurality of voids. The broadhead also includes a second portion that abuts the first portion. The second portion includes multiple concave lopes defining a second plurality of voids. The concave lobes have an inner surface that extends radially outward from the first end along the longitudinal axis to an opposite, second end of the second portion.Type: GrantFiled: April 15, 2021Date of Patent: May 23, 2023Assignee: ANNIHILATOR BROADHEADS, LLCInventors: Brandon Brodie, Micah Brown
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Patent number: 11536546Abstract: A projectile is provided. The projectile includes a shaft having a forward end and a rearward end. The projectile further includes a first fin component and a second fin component disposed proximate to the rearward end. At least one of the first fin component and the second fin component engages the other of the first fin component and the second fin component for securing the first fin component and the second fin component together. Another projectile includes a fin mount coupled to the rearward end of the shaft. The fin mount includes an extension extending away from the shaft with the extension defining a bore extending through the extension transverse to the shaft. The extension has a substantially cylindrical configuration and the aperture is adapted to receive a pin of a launching device for releasably securing the projectile to the launching device.Type: GrantFiled: November 30, 2021Date of Patent: December 27, 2022Assignee: UT BRANDS LLCInventor: Robert Kushner
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Patent number: 11510398Abstract: A bowfishing arrow slide configured to slidably attach a bowfishing line to an arrow and configured to include a shock absorbing system to enhance the life of the slide is disclosed. The bowfishing arrow slide enables a bowfishing line to be slidably attached to the arrow to keep the arrow attached to a line reel even after being shot and to allow the slide to move from a preshot position at the tip of the arrow to the rear of the arrow during the shot for improved arrow flight. The bowfishing arrow slide may include a shock absorbing system on the bowfishing arrow slide whereby the shock absorbing system is configured to absorb impact forces created when the strikes a slide stop on an arrow shaft when the arrow is shot. The shock absorbing system reduces damage to the slide thereby enhancing the useful life of the slide.Type: GrantFiled: July 23, 2019Date of Patent: November 29, 2022Inventor: Kevin M. Sullivan
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Patent number: 11179899Abstract: The present invention is a lightweight archery arrow having an arrow shaft with internal bracing, an arrow tip, and a nock. The arrow shaft with internal bracing is a cylindrical tube having a plurality of ribs formed along the length of the cylindrical tube. The ribs increase the bending stiffness of the cylindrical tube without adding additional thickness and weight. Due to the increased bending stiffness of the cylindrical tube provided by the ribs the wall thickness of the cylindrical tube may be reduced while still maintaining the bending stiffness comparable to that of an arrow shaft having a thicker wall. The decrease in wall thickness and the reduction of material reduces the weight of the arrow shaft providing an arrow shaft with an exterior diameter and bending stiffness comparable to that of a standard arrow shaft, but being lighter in weight.Type: GrantFiled: February 6, 2020Date of Patent: November 23, 2021Assignee: MCA GOLF, INC.Inventor: Stephen Greenwood
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Patent number: 11105593Abstract: In some embodiments, projectile comprises a first body portion comprising a tip, a second body portion comprising a nock and a tether attached to the first body portion and attached to the second body portion. In some embodiments, the projectile comprises a first configuration where the first body portion contacts the second body portion. In some embodiments, the projectile comprises a second configuration where the first body portion is spaced apart from the second body portion.Type: GrantFiled: September 3, 2019Date of Patent: August 31, 2021Assignee: MCP IP, LLCInventor: Jeffrey A. Ozanne
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Patent number: 11098994Abstract: An arrow insert with threaded stem for retaining an arrow tip preferably includes an arrow tip and an arrow insert. The arrow tip may be a broadhead. The arrow tip includes tip portion formed on one end and a threaded tap formed in an opposite end thereof. An O-ring counter bore is formed in the opposite end. The arrow insert preferably includes a barbed shank, an arrow shaft contact portion, an end flange, an arrow tip locator, at least one O-ring groove and a threaded stem. The barbed shank extends from one end of the arrow shaft contact portion. The end flange extends from an opposing end of the arrow shaft contact portion. The arrow tip locator extends from the end flange. The threaded stem extends from the arrow tip locator. The at least one O-ring groove is formed in the arrow tip locator.Type: GrantFiled: October 20, 2020Date of Patent: August 24, 2021Inventor: Dorge O. Huang
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Patent number: 11033805Abstract: In accordance with embodiments a projectile can have a body and a tip attached to the body, the body including a nub portion extending from a second end of the body and optionally one or more fins surrounding a circumference of the body at the second end.Type: GrantFiled: March 24, 2020Date of Patent: June 15, 2021Assignee: HASBRO, INC.Inventor: Dennis Bernal
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Patent number: 11022411Abstract: A dart with a telescopic tail wing composes a dart rod, a dart head disposed at a front end of the dart rod and a tail wing disposed at a rear end of the dart rod. A tail wing connecting part is disposed at the rear end of the dart rod. The tail wing comprises a sleeve and multiple wing blades disposed on the sleeve. A clamping part is disposed on the tail wing connecting part. A limiting part is disposed in the sleeve. The tail wing connecting part is inserted into the sleeve. The clamping part stretches from one side to the other side of the limiting part and is matched with the limiting part. An elastic piece is disposed around the tail wing connecting part. The tail wing can rotate on the tail connecting part and can telescopic. In case of a collision, the tail wing can rotate to reduce force, so that compared with the prior art, dart is simple in structure, easy to assemble and low in production cost.Type: GrantFiled: May 10, 2019Date of Patent: June 1, 2021Inventor: Dangcai Chen
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Patent number: 11009320Abstract: An archery arrow is disclosed herein, and also disclosed herein is a method for manufacturing archery arrows. The archery arrow, in an embodiment, includes an elongated member having a material that is configured to be changed from a first state to a second state. In the first state, the material is shapeable, and in the second state, the material has a rigid characteristic. The archery arrow also has at least one arrow element. A first portion of the arrow element is configured to be inserted into the elongated member while the material has the first state. When the material has the second state, the first portion is positioned below the outer surface of the elongated member, and the second portion is positioned beyond the outer surface.Type: GrantFiled: January 25, 2019Date of Patent: May 18, 2021Assignee: Blue Curtain LLCInventors: Donald M. Gordon, Edward D. Pilpel
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Patent number: 11002521Abstract: The present disclosure describes a broadhead for an arrow. The broadhead includes a first portion, as defined along a longitudinal axis of the broadhead. The first portion includes multiple cutting walls that extend radially from the longitudinal axis and define a first plurality of voids between the cutting walls. The outer edges of the cutting walls form edges of a generally pyramid-shaped volume that includes the first portion and the first plurality of voids. The broadhead also includes a second portion that abuts the first portion. The second portion includes multiple concave lopes defining a second plurality of voids. The concave lobes have an inner surface that extends radially outward from the first end along the longitudinal axis to an opposite, second end of the second portion.Type: GrantFiled: June 11, 2019Date of Patent: May 11, 2021Assignee: ANNIHILATOR BROADHEADS, LLCInventors: Brandon Brodie, Micah Brown
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Patent number: 10859354Abstract: An arrow insert with threaded stem for retaining an arrow tip preferably includes an arrow tip and an arrow insert. The arrow tip includes tip portion formed on one end and a threaded tap formed in an opposite end thereof. An O-ring counter bore is formed in the opposite end. The arrow insert preferably includes a barbed shank, an arrow shaft contact portion, an end flange, an arrow tip locator, at least one O-ring groove and a threaded stem. The barbed shank extends from one end of the arrow shaft contact portion. The end flange extends from an opposing end of the arrow shaft contact portion. The arrow tip locator extends from the end flange. The threaded stem extends from the arrow tip locator. The at least one O-ring groove is formed in the arrow tip locator.Type: GrantFiled: February 21, 2020Date of Patent: December 8, 2020Inventor: Dorge O. Huang
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Patent number: 10859337Abstract: In accordance with embodiments a toy projectile system can have a toy projectile and a toy projectile launcher having an improvised projectile checking and locking feature to confirm presence of a proper projectile of the system through detection of the nub and prevent launch of a projectile not designed for use with the system.Type: GrantFiled: March 24, 2020Date of Patent: December 8, 2020Assignee: HASBRO, INC.Inventor: Dennis Bernal
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Patent number: 10655942Abstract: A bowfishing arrow shaft is provided with a carbon fiber bow fishing arrow providing an outer tube with an internal wire rope. In this regard the wire rope provides added weight while being ductile to prevent damage to the carbon fiber tube or holding a “kink” preventing the arrow from fully returning to a straight configuration after extreme flexure of the carbon fiber tube which would otherwise be accommodate.Type: GrantFiled: June 5, 2018Date of Patent: May 19, 2020Assignee: AMS, LLCInventor: Kevin Schellinger
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Patent number: 9726465Abstract: An aerodynamic tip for an archery arrow includes a nipple centered on the face of the tip and surrounded by projections at the outer diameter. Air striking the rounded ends of the projections is diverted toward the rounded end of the nipple. As the air is diverted by the nipple it flows into radial grooves along the side of the body of the tip, where it passes into the atmosphere, minimizing air resistance encountered by the tip as it traverses its flight path. On contact, the energy and mass is concentrated to the projections, causing immediate penetration of the target by the front portion of the tip, with the remainder of the tip following. After impact, the radial grooves channel blood away from the tip as it penetrates the flesh of the target, allowing the arrow to completely travel through the target, achieving a “through and through” shot.Type: GrantFiled: August 12, 2016Date of Patent: August 8, 2017Inventor: Kirby Moore
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Patent number: 9435621Abstract: An arrowhead assembly structure is connected with a front end of an arrow rod and includes: an arrowhead member, a first end of the arrowhead member being fitted on a front end of the arrow rod, the arrowhead member having a support flange and a hub section, the hub section axially extending from the support flange toward a second end of the arrowhead member, the hub section having a diameter smaller than outer diameter of the support flange; at least one first cushion member formed with a central through hole, by means of the central through hole, the first cushion member being fitted around the hub section, one end of the first cushion member being adhered to the support flange of the arrowhead member; and at least one second cushion member, a first end of the second cushion member being adhered to a second end of the first cushion member.Type: GrantFiled: February 22, 2016Date of Patent: September 6, 2016Inventor: Pei-Ken Yeh
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Publication number: 20150119174Abstract: A toy projectile that has a shaft with a head end and a tail end is described herein. A head is associated with the head end of the shaft. Fins are associated with the tail end of the shaft. Extending hooks extend outward from the sides of the head.Type: ApplicationFiled: January 7, 2015Publication date: April 30, 2015Applicant: KMA CONCEPTS LIMITEDInventor: Peter J. Cummings
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Patent number: 8764589Abstract: An extended flight system for extending the flying distance and improving the accuracy of an arrow when shot from a bow has a shaft first end having a threaded cavity for attaching a standard arrowhead. The shaft second end has a threaded rod for attaching a standard arrow shaft. The system has fletching located on the shaft exterior surface with fins or vanes resembling a shape of a triangle. The fins or vanes are located at an even distance from each other. A fin first end originates close to the shaft middle and a fin second end terminates close to the shaft second end. The arrowhead is attached to the shaft first end. The arrow shaft is attached to the shaft second end. A length of an arrow is extended upon installation of the system an equivalent of about the shaft length.Type: GrantFiled: July 5, 2012Date of Patent: July 1, 2014Inventor: Robin E. Thompson
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Publication number: 20140087897Abstract: A safety lawn dart game including safety lawn darts, a caddy and targets. The lawn dart includes an elongated shaft, a plurality of flights extending outwardly from the shaft and a head assembly having a weighted, spring biased head portion. The target may include a target hoop or electronic target. The caddy carries and stores the safety darts and targets in a convenient manner to keep all of the game components together.Type: ApplicationFiled: September 27, 2013Publication date: March 27, 2014Applicant: Eastpoint Sports Ltd., LLCInventor: Michael J. Nally
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Patent number: 8668602Abstract: A method for training a user to swing a member at a moving target. The method comprises receiving in an area proximate the member a target object projected along a free space path toward the area. The method also comprises striking, by the user, the target object with the member. In the method, the target object comprises a target member having a majority of its length along the free space path.Type: GrantFiled: October 1, 2010Date of Patent: March 11, 2014Inventor: Paul M. Kieffaber
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Patent number: 8602926Abstract: Disclosed is a composite arrow vane for mounting to a projectile. The composite arrow vane is constructed of a composite material that includes a polymer matrix around structural elements. In some embodiments, the polymer matrix may be a thermoplastic polyurethane. The structural elements compounded into the polymer may be voids, hollow glass beads or just about any structure having a weight per unit volume that is less than the weight per unit volume of the polymer matrix. Advantageously, the composite material allows for reduced dimensions of the composite arrow vane because the increased tensile strength of the material allows for size reductions without significantly compromising vane performance. Similarly, the lighter weight per unit volume of the composite material as compared to a homogeneous polymer allows for increased flight speed of the projectile.Type: GrantFiled: April 17, 2012Date of Patent: December 10, 2013Assignee: The Bohning Company, LtdInventors: Larry R. Griffith, Anne-Marie Bebak
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Publication number: 20130167820Abstract: A sport blow gun is a blow gun which is a tube with a bore, a loading end and a muzzle end. A projectile is inserted into the loading end and blown out the muzzle end by the user's breath. The main tube features a safety device which prevents a projectile from falling out of the tube or being inhaled. One type of projectile fired from the blow gun is a dart which is usually comprised of foam or soft material, and may also be made out of a material which causes relatively little resistance as it passes through the bore, yielding higher velocity. The projectile may also be coated with a coating which reduces resistance with the bore. Projectiles may also be modified in form for aerodynamic efficiency.Type: ApplicationFiled: January 4, 2013Publication date: July 4, 2013Inventor: Gary C. Gilbertson
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Publication number: 20130109513Abstract: The present invention relates to a weighted flag for use as an aerodynamic projectile directed to a target, an apparatus for receiving and storing a tossable object, and a toss game set that includes at least one weighted flag and at least one target apparatus according to the present invention. The present invention also relates to methods of making and using the weighted flag and target apparatus according to the present invention. The present invention further relates to a method of play that involves using the weighted flag and the target apparatus according to the present invention.Type: ApplicationFiled: October 26, 2012Publication date: May 2, 2013Applicant: LEE HOUSE, LLCInventor: LEE HOUSE, LLC
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Patent number: 8376882Abstract: A device for allowing a crossbow to be released from a drawn position without damaging the crossbow. The device may comprise an elongated member having a substantially cylindrical shape that can be positioned on the upper surface of the barrel of a crossbow. The device may comprise a notched end shaped to receive the bowstring of the crossbow and allows the device to be projected by the bowstring upon actuation of the crossbow's trigger lever.Type: GrantFiled: June 30, 2009Date of Patent: February 19, 2013Assignee: Hunter's Manufacturing Company, Inc.Inventors: Michael J. Shaffer, Richard W. Gardner, Richard J. Bednar
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Patent number: 8251845Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes drawing the arrow back on a bow until a forward facing laser beam in an arrowhead of the arrow turns on in response to a hall effect sensor sensing the presence of a magnet on the bow.Type: GrantFiled: April 9, 2010Date of Patent: August 28, 2012Assignee: Clean-Shot Archery, Inc.Inventor: Larry R. Bay
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Publication number: 20120021856Abstract: A counterweight for a hunting arrow that is mountable between a broadhead and the arrow shaft. The counterweight includes a body with a threaded opening that receives a threaded projection extending from a broadhead and a threaded stud that is threadably matable with a threaded opening in an insert disposed within the leading end of an arrow shaft.Type: ApplicationFiled: July 22, 2010Publication date: January 26, 2012Inventors: James F. Mackey, JR., Joseph M. Camara
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Patent number: 7955201Abstract: An arrow element, such as an insert and/or sleeve, mounted with respect to a shaft with at least one airflow resistor projecting outward from the insert to impart rotational spin about a longitudinal axis or spin axis arrow during flight, to increase aerodynamic performance and stability of the arrow shaft, and to improve arrow flight accuracy.Type: GrantFiled: November 10, 2006Date of Patent: June 7, 2011Assignee: New Archery Products Corp.Inventors: Frank A. Harwath, Robert S. Mizek
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Patent number: 7914406Abstract: A vane that can be mounted to a projectile to provide stability of flight, without substantially degrading speed due to added weight and/or causing clearance concerns. The vane is approximately 1.85 inches long and 0.465 inches high with a front-edge and a back-edge that meet at a point. The back-edge arcs down towards the base of the vane while the front edge degrades in a substantially linear fashion to the base of the vane.Type: GrantFiled: January 22, 2008Date of Patent: March 29, 2011Assignee: The Bohning Company, Ltd.Inventor: Dave Andrews
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Publication number: 20100279803Abstract: Disclosed herein is an arrow for hunting. The arrow includes an arrow shaft having a predetermined length and including a nock on one end and a shaft threaded part in the other end. A plurality of feathers is positioned to be adjacent to the nock of the arrow shaft. A connector includes a connecting threaded part fastened to the shaft threaded part, a stopper, and a penetration threaded part. An arrowhead is connected to the connector in such a way as to be opposite to the connecting threaded part. A penetration rotary unit has a threaded part to be fastened to the penetration threaded part of the connector, is shorter than the penetration threaded part, and has wings. A spring is positioned between the stopper and the penetration rotary unit, and provides a restoring force to bias the penetration rotary unit toward the arrowhead.Type: ApplicationFiled: April 29, 2010Publication date: November 4, 2010Inventor: Young Ki LEE
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Publication number: 20100261560Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes drawing the arrow back on a bow until a forward facing laser beam in an arrowhead of the arrow turns on in response to a hall effect sensor sensing the presence of a magnet on the bow.Type: ApplicationFiled: April 9, 2010Publication date: October 14, 2010Inventor: Larry R. Bay
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Publication number: 20090247333Abstract: An arrow assembly having an elongated tubular arrow shaft, with a plurality of slits extending forwardly from the rearward end of the shaft, an expandable locking insert mounted at the forward end of the arrow shaft, a arrow head having a ball-shaped tip mounted on the locking insert, a fletching mechanism having a central spine mountable inside the shaft and a plurality of vanes extending radially outwardly from the spine and through the slits in the shaft, and a nock mountable at the rearward end of the shaft. The assembly can be assembled, disassembled and repaired in the field.Type: ApplicationFiled: March 28, 2008Publication date: October 1, 2009Inventor: Walter E. Bottelsen
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Patent number: 6682448Abstract: A play device designed to be struck by various parts of the human anatomy, or with rackets or paddles, depending on the size of the play device. The tail portion of the play device, consists of a curved bell shaped structure, constructed from a suitable molded plastic or a composite of materials; which allows for a strong, flexible, lightweight tail. The length of the tail portion forms a parabolic curve, which increases the compression strength of the tail, as well as increases the drag the tail lends to the device while in flight. The tail portion of the device is connected to a substantially round striking(head)portion. The proportions and weight characteristics enable the shuttle to quickly recover to a head first stable flight pattern, thereby enabling a player to repeatedly strike the device, with the intention of sustaining it's flight.Type: GrantFiled: April 25, 2001Date of Patent: January 27, 2004Inventor: Bradford C. Jamison
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Publication number: 20030153417Abstract: A broadhead being attachable to an arrow shaft, includes a blade support having an internal passage defined in a blade receiving body, the blade receiving body having a plurality of slots defined therein extending from the internal passage to a blade receiving body external margin and having a camming surface. A translatable ring is disposed in the internal passage, and a plurality of extendable blades, each blade being shiftably coupled to the ring proximate a blade first end and being at least partially disposed in a respective slot when in a blade retracted disposition, a blade second end being cammable outward to a blade extended disposition by interaction with the body camming surface. A method of operating an expandable broadhead is further included.Type: ApplicationFiled: January 15, 2003Publication date: August 14, 2003Applicant: Barrie Archery LLC.Inventors: Bruce Barrie, John C. Sodaro
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Patent number: 6248033Abstract: A dart for the game of darts has mounting in the form of a bore (12) in the barrel (10, 31) which receives a stem part (13, 30, 44) of a point (13, 30) and/or of a shaft (44) with a flight (45). The stem part is gripped and retained by a spring clip (16) trapped in the bore (12). The stem may be rotatable or not in the bore. A second mounting may also be provided for receiving a threaded portion (43) of a dart shaft (32) or dart point (40). The dart can be provided with interchangeable points (13, 30, 40) and shafts (32, 44) which fit into either of the first and second mountings in dependence upon the point and shaft chosen.Type: GrantFiled: October 19, 1998Date of Patent: June 19, 2001Assignee: Unicorn Products LimitedInventor: Stanley Robert Lowy
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Patent number: 6220918Abstract: Tossable ring airfoil projectiles configured to adopt and maintain a flying orientation that generates lift. The tossable ring airfoil projectiles generally include (i) a ring airfoil having a trailing end, an aperture, and a longitudinal symmetry axis running through the aperture, and (ii) a tail associated with the ring airfoil and extending rearward beyond the trailing end. The ring airfoil provides lift that allows the tossable ring airfoil projectile to follow a flying trajectory. The tail stabilizes the projectile during flight and may provide a torque that biases the ring airfoil toward preferred flying orientations. The tail may extend along the longitudinal symmetry axis and may include outwardly extending fins. The tossable ring airfoil projectile further may include a connection configured to associate the tail with the ring airfoil. The connection also may extend along the longitudinal symmetry axis and may include outwardly extending flanges.Type: GrantFiled: July 6, 2000Date of Patent: April 24, 2001Assignee: OddzOn, Inc.Inventor: Ronald V. Laronge
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Patent number: 5895331Abstract: A custom dart has a tubular body having opposite open ends and an interior wall. A nose piece closes one end of the body and a wad of relatively heavy malleable material is packed into the open end of the tube so that the material conforms substantially to the interior wall of the body and forms a fixed plug which fills a selected interior segment of the body. Then, a tail piece is secured to so as to close the other end of the body following which a dart point is attached to the nose piece and a flight shaft is attached to the tail piece.Type: GrantFiled: September 12, 1997Date of Patent: April 20, 1999Assignee: Woodcraft Supply CorporationInventor: Timothy L. Rinehart
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Patent number: 5846147Abstract: In order to provide enhanced performance from fletching, an integral or slidable stabilizer is operatively associated with an arrow shaft. The stabilizer in either form includes a plurality of radial vanes each of which imparts aerodynamic force to the shaft so as to cause the arrow to roll or "spin" when the arrow is in flight. In the preferred embodiments of the invention, the radial vanes of the stabilizer have a cross section in the form of an airfoil to thereby induce the roll or "spin.Type: GrantFiled: March 17, 1997Date of Patent: December 8, 1998Inventor: Ronald Basik
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Patent number: 5842942Abstract: An arrow for a crossbow is constructed so that it is particularly rigid and allows for an interchange of different arrow heads while exhibiting the same aerodynamic characteristics. The shaft of the arrow comprises two tubes: an interior tube which is received within an exterior tube; the exterior tube extends beyond the interior tube at the front end of the arrow, and the interior tube extends beyond the exterior tube at the rear end of the arrow. The arrow head includes a shaft which is adapted to seat within the exterior tube at the front of the arrow. The arrow is provided with a tail unit which includes a tubular element which is adapted to be received over the interior tube at the rear of the arrow. This prevents the arrow head from widening the shaft on impact, and allows the tail unit to slide off as the arrow penetrates a target.Type: GrantFiled: December 5, 1997Date of Patent: December 1, 1998Assignee: Doht GmbH MaschinenfabrikInventors: Jochen Doht, Johannes Ossege
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Patent number: 5707307Abstract: A combined dart and writing implement, such as a ball point pen. Each are contained within the same housing and movable from a retracted to an extended position. When extended, their tip portion extends through an orifice in the housing. Both the dart and writing implement have springs to retract them and each is moved by pushing a finger operated button.Type: GrantFiled: June 26, 1996Date of Patent: January 13, 1998Inventors: Carlos Robben, Sandra Hudson
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Patent number: 5603506Abstract: A novel dart is equipped with a dart point contraction system which allows the dart point to contract into the body or barrel of the dart as when the dart point impacts wire, or staples and the like which surmount boundaries of denominated regions of a dart board. The dart body defines a cylindrical cavity into which the downstream end of the dart point can reciprocatingly travel since it also is cylindrical and comes to rest against the dart body at the end of its travel. It is as a result of kinetic energy of flight that even though the dart point may have impacted a boundary wire or even a denominated region of the dart board, dart "bounce-out" is inhibited by the momentum of dart point upstream end travelling into the dart body housing. Because of a tapered furrel in the front portion of the dart body, the whole dart point system furrel and point may be simply removed as by (strongly) pulling or to be replaced most conveniently with a simple extraction tool.Type: GrantFiled: April 12, 1996Date of Patent: February 18, 1997Inventor: Jeffrey Pickup