Archery Bow Patents (Class 33/265)
  • Patent number: 4995166
    Abstract: A sight pin and top and bottom range finder pins are mounted on a slide movable vertically relative to the handle of an archery bow. The slide has mechanism for moving the range finder pins equally toward the sight pin or away from it as the slide is moved. The amount of increase or decrease in the spacing between the range finder pins for a given length of travel of the slide can be adjusted and can be different for different ranges of vertical travel of the slide.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: February 26, 1991
    Inventor: Loren A. Knemeyer
  • Patent number: 4986001
    Abstract: The structure of an adjustable telescope mount for an archery bow has been presented herein. The main components of the present invention include: a threaded rod having a first and second end, a ball having a threaded hole therethrough, and means for adjustably clamping the ball. The first end of the threaded rod is capable of receiving a telescope and the second end is threaded through the hole in the ball, which is sized to receive the second end. The means for adjustably clamping the ball include two C-shaped members which have machined edges in order to have surfaces contoured to mate closely with the shape of the ball. The C-shaped members are attached to each other forming an opening which engages the ball. One of the C-shaped members is further attached to means for affixing the adjustable clamping means to the bow.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: January 22, 1991
    Inventor: Frank J. Giamattei
  • Patent number: 4984373
    Abstract: An archery bow sight wherein each sighting pin is a substantially straight rod extending through holes in a primary brace. The sighting pins are secured in position through the use of a cam mechanism that pinches or bends the sighting pins against the sides of the holes in the brace.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: January 15, 1991
    Inventor: Richard M. Forrest
  • Patent number: 4984372
    Abstract: The invention relates, generally, to an improved sighting and range finding device for use with archery bows and the like, and more particularly, to an integrated bow sight comprising a boxed housing having a plurality of horizontal transparent sighting elements therein having "cross hair" sighting references and means for vertical adjustment. An adjustable range finder is mounted atop the bow sight housing so as to provide the user with a correlating means between the range finder and the correct sighting element in order to provide for a more accurate means of sighting, along with the capability of adjusting for different types of game animals.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: January 15, 1991
    Inventor: C. Andrew Blizzard
  • Patent number: 4982503
    Abstract: An archery bow sight, for improving the accuracy of shooting by an archer and reducing cant in the use of the bow, comprises front and rear horizontal and vertical cross-hair sets located within front and rear sights which are mounted on a support member attached to sight holes on the bow. The cross-hairs sets are adjusted so that they are superimposed when the archer draws the bow to the normal anchor point. Shooting pins are provided in the front sight to provide centering points for targets located at various distances from the bow. In use, the shooting pins are centered on the target with the front and rear cross-hair sets perfectly aligned with or superimposed with one another. When this is done, cant of the bow readily may be reduced or eliminated.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: January 8, 1991
    Inventor: Leo Land
  • Patent number: 4979309
    Abstract: A range finding bow sight for archery bows which includes a frame on which are mounted upper and lower mirrors in a substantially parallel relationship at a 45 degree angle and vertically aligned with each other forwardly of the bow. The top mirror is pivotally mounted and adjustably responsive to manipulation of a lever which cooperates through a programmed cam segment on a rotationally mounted sighting plate to which is attached a sight pin. Movement of the actuating lever correspondingly shifts the upper mirror to permit alignment of the actual target image with a reflected target image from the lower mirror. Movement of the actuating lever simultaneously positions the sight pin to provide the necessary elevation of the bow for the proper trajectory of the arrow to the target. The programmed cam section is removable and can be shaped to match the performance characteristics of the archery equipment being used.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: December 25, 1990
    Inventor: Maurice L. Oligschlaeger
  • Patent number: 4977677
    Abstract: A targeting device comprising a transparent casing having a circumferential wall formed with circumferentially aligned openings. A transparent lens is enclosed by and in firm contact with the circumferential wall of the casing, has it circumferential surface disposed directly opposite the opening in the casing, and has one of its plane surfaces formed with a reticle of reflective material. Light emitting diodes are disposed in the casing openings and are connected to a power source. Coating material is provided on the casing for inhibiting light from escaping from the casing, while intensifying reflection of light from the diodes into the casing and then into the lens for illumination of the reticle.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: December 18, 1990
    Inventor: Robert H. Troescher, Jr.
  • Patent number: 4977678
    Abstract: An archery sight for use with a bow has one or more adjustable beaded sighting pins extending vertically, parallel to the bow frame. A notched sighting plate is mounted remote from the pins with the notches aligned with the pins in the sighting direction.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: December 18, 1990
    Inventor: Benny Sears
  • Patent number: 4974328
    Abstract: A pendulum bow sight adapted for use on bows used from elevated positions such as tree stands and the like includes a mounting frame for attaching a pendulum and a pendulum frame to a bow. The pendulum and pendulum frame are pivotally mounted to the mounting frame to move independently of each other. The lower surface of the pendulum frame, which is formed in an arc, has square teeth which engage similar teeth on an upwardly disposed surface at the lower end of the pendulum. The pendulum frame has integral elongate slots to accept a slidably mounted sighting pin. A fixed sighting pin is mounted through the pendulum/pendulum frame pivot axis. Range and tree stand height markings can be placed on the pendulum frame. The sight can be mounted for use by either a right-handed or left-handed archer.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: December 4, 1990
    Inventor: Abner P. Lowry
  • 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: 4967478
    Abstract: An aiming device for archery bows comprising a non-sight restricting tube, the said tube housing a front cross-hair sight and a rear multiple range compensating rear peep sight; the said tube being detachably secured to a mounting and adjusting apparatus which is secured to the standard mounting point on most standard bow handles.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: November 6, 1990
    Inventor: Bradley G. Sherman
  • Patent number: 4965938
    Abstract: A peep sight for mounting on the bowstring of an archery bow. The peep sight is resistively and frictionally stably mounted on and coupled to the bowstring, yet readily, manually relocatable at selected positions along the bowstring. In a specific embodiment of the invention, the peep sight body is formed with longitudinally extending channels at opposed sides thereof, each of the channels entraining therewithin an array of strands constituting divided grouped arrays of the bowstring. Bearing on and held fixed with respect to the body of the peep sight at opposed ends thereof are bowstring-engaging elements for embracing the bowstring and establishing, in conjunction with the peep sight body, a frictional securement of the peep sight on the bowstring in selectable locations therealong, thus obviating the need for windings, or wrapping or serving as means for fastening the peep sight on the bowstring.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: October 30, 1990
    Assignee: Saunders Archery Company
    Inventor: Charles A. Saunders
  • Patent number: 4961265
    Abstract: An archery bow sight mounting device having a mechanism means for adjusting the vertical launch trajectory of an arrow through an angle of ten degrees or more in closely spaced steps of 20 minutes of arc, or less, having structure to inhibit an accidental misadjustment, and having indica for calibrating range with respect to each adjustment. Structure is also provided for adjusting the transverse launch trajectory angle to compensate for variations between bows or archers.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: October 9, 1990
    Assignee: Roberts Mfg., Inc.
    Inventor: Kent S. Roberts
  • Patent number: 4961264
    Abstract: An improved restraint and alignment assembly for use with a string-mounted archery peepsight includes a nonelastic member, such as a flat-braid nylon cord that is tied between an eyelet on a post extending from the peepsight and an eyelet formed in a connector, which, in turn, is fastened to one end of an elastic member, such as a portion of latex surgical tubing. A second end of the elastic member is fastened to a post extending from an anchor pad secured to the inside of an upper limb of a compound bow. The nonelastic member extends through a safety clip that surrounds a cable of the compound bow at a location between the connector and the peepsight. The foregoing arrangement serves to limit any unwanted rearward travel of portions of the elastic member if the elastic member fails to be continuously secured between the anchor pad and the connector, thereby preventing any portion of the elastic member from reaching the face or eyes of the archer.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: October 9, 1990
    Inventor: Kenneth D. Topel
  • Patent number: 4953302
    Abstract: An archery sight which incorporates an optical distance-measuring device, automatic selection and illumination of the appropriate sight for the distance so measured, and a mechanism to correct for the lesser effect of gravity on the trajectory of the arrow when the target is elevated or depressed with respect to the archer.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: September 4, 1990
    Inventor: Russell P. Gould
  • Patent number: 4934332
    Abstract: An archery bow peep sight designed to be mounted horizontally in a multi-stranded bowstring such that the axis of the peep is the same as the line of the bowstring. The peep sight is disk shaped having three or more slots parallel to the axis of the peep and uniformly distributed about the periphery. The faces of the peep sight are parallel to one another and have opposing frustoconical surfaces which are penetrated at their apexes by the sighting hole or peep.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: June 19, 1990
    Inventor: Patrick L. Scherz
  • Patent number: 4928394
    Abstract: A sight base includes an upright pair of guides on which sight pin carriers are slidably mounted. Fiber optics are carried by the base with a fiber optic end, constituting an illuminated sight bead, carried by a tubular sight pin on each sight pin carrier. The remaining ends of the fiber optics are bundled in a positionable sleeve for light gathering purposes.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: May 29, 1990
    Inventor: James R. Sherman
  • Patent number: 4915088
    Abstract: A bow sight for compensating for the range from a bow to a target includes a frame having a rear end and a front end, with the front end position closer to the target than the rear end. A single rear V-notch sight is connected to the frame adjacent the rear end for sighting the target. A plurality of vertically arrayed front sight pins are connected to the frame adjacent the front end at locations thereon such that aligning the uppermost signal pin with the V-notch sight establishes the correct attitude for sighting the bow at any range, and aligning a lower sight pin appropriate for a particular distance with a target at that distance establishes the correct amount to hold the bow over the target for that distance. A method of use is disclosed.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: April 10, 1990
    Inventor: Reginald G. Powers
  • Patent number: 4910874
    Abstract: An archery bow sight mechanism for mounting to a bow stock, including a vertical base plate for connection to the bow stock. A pair of slider bars, or a single U-shaped slider having two legs, are affixed to the upper and lower ends of the base plate. A pin holder is provided, each end of which is slidably mounted to a respective one of the slider bars or legs. A plurality of sight pins are movably connected to the pin holder. A threaded lateral adjustment rod is affixed to the pin holder, and projects through the base plate. An adjustment knob is rotatably secured with respect to the base plate and threaded onto the lateral adjustment rod, such that the rod is moved laterally with respect to the bow stock by turning the knob on the lateral adjustment rod. Hence by turning the knob, the pins are moved laterally with respect to the bow stock, but are not moved at all with respect to each other.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: March 27, 1990
    Inventor: Jeffery A. Busch
  • 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: 4894921
    Abstract: An archery rangefinder sight comprises a housing affixed onto the bow, with a power supply and a rotary mechanical or magnetic switch that has a shaft protruding through a side wall of the housing. A bowsight element employs a number of sight pins vertically spaced above one another and mounted either on the case or as a separate element attached to the bow. A number of LED's or lamps are mounted on the housing so as to be visible to the archer when aiming the bow. A weighted pendulum arm is adjustably mounted on the switch rotary shaft to rotate the same as the bow inclination changes. Then one of the lamps becomes illuminated to indicate the range to target, and the bow is aimed and shot according to a respective one of the sight pins.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: January 23, 1990
    Inventor: William J. Barlow
  • Patent number: 4884347
    Abstract: An archery sight has a pin plate member which is pivotally mounted for use as a pendulum tree sight but is cageable for use as a field sight. A plurality of individual sight pins, each of which is individually adjustable both vertically and laterally, are carried by the plate.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: December 5, 1989
    Assignee: Browning
    Inventor: Marlow W. Larson
  • Patent number: 4875290
    Abstract: Windage locking apparatus for an archery bow sight. The apparatus includes aperture, barrel, and body members concentrically positioned within each other about an axis and common locking structure to selectively lock these member together to prevent relative movement among them about and along the axis. The common structure includes a single set screw extending outwardly of the axis through the barrel and body members and a locking knob to fit on the portion of the set screw protruding outwardly of the body member. In operation and with the set screw securely holding the aperture and barrel members together, the locking knob can be tightened on the protruding portion of the set screw to draw the barrel member into frictional contact with the surrounding body member to lock the aperture, barrel, and body members securely in place for shooting. Additionally, the present invention provides structure to keep the locking knob from being separated from the set screw and possibly becoming lost.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: October 24, 1989
    Assignee: ACCRA Manufacturing Co.
    Inventor: Jack A. Finch
  • Patent number: 4860458
    Abstract: A bow string peep sight comprises a disk having a string hole for receiving a bow string to be kept in a position perpendicular to the disk. Outside the string hole the disk is provided with a transparent sighting area having the shape of a sector of a circle ring concentric to the string hole and extending over an angle of between 120.degree. and 270.degree.. When the bow is drawn the disk is tilted, thereby revealing to the archer a single sighting opening outwardly appearing to be limited by two elliptic arcs. The sighting hole is made sufficiently small to ensure an exact aiming. Owing to the great angular distance between the ends of the sighting area, the single sighting opening is formed independent of the twist of the bow string.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: August 29, 1989
    Inventor: Leif Ernstsen
  • Patent number: 4848306
    Abstract: A mechanical cord winding device in the form of a reel is secured to an archer's bow to apply tension to a cord which is fastened to a bowstring device or sight in such a manner as to align the back sight of the bow with respect to the front sight thereof. The reel is used to store the cord when the bowstring is displaced less than a predetermined distance from the bow. The reel is enclosed by a housing.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: July 18, 1989
    Inventor: Mahlon L. Treaster
  • Patent number: 4846141
    Abstract: A sight for archery bows including an elongate sight pin carrier having a guideway in which are adjustably carried a number of sight pin holders. The pin holders are of cruciform shape with a sight pin in threaded engagement therewith for lateral sight pin adjustment. A locking screw secures each pin holder to the pin carrier. For sighting in the sight, the pin carrier is tiltable in a vertical plane in one form of the sight to vary the viewed or apparent distance between the sight pins while in a second form of the invention, the pin carrier is slidably mounted on a bow mounted base. The base may define elongate intersecting slots for base and sight positioning along two courses.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: July 11, 1989
    Inventor: Jerry Johnson
  • Patent number: 4833786
    Abstract: A hollow cylindrical body is provided including a pair of relatively thin flexibly resilient transverse discs mounted therein. The discs include central openings and include radial slits therein spaced about the openings and extending outward toward outer marginal portions of the discs. An annular wedge is mounted within the body and engageable against the inwardly tapering finger portions of one of the discs defined between the slits therein for laterally deflecting the inner end portions of those fingers, as well as the fingers of the adjacent disc, longitudinally of the body to thus increase the diameter of the sight window defined between the radial inner ends of the fingers, the slits formed in each disc being spaced between the slits formed in the other disc.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: May 30, 1989
    Inventor: Ronald G. Shores, Sr.
  • Patent number: 4823474
    Abstract: A bow sight is disclosed that provides vertical adjustability by movement of a finger of an archer's hand that is holding the bow in a shooting position. The bow sight comprises an elongated housing mountable adjacent a front edge of a bow with an elongated vertical screw member held rotatably by the housing. A sight carriage, with a horizontal sighting element extending therefrom, moves with the screw member as the screw member rotates in response to rotation of a knob at the lower end of the screw member.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: April 25, 1989
    Inventor: Loyd I. Reynolds
  • Patent number: 4819611
    Abstract: A flexible sight pin for an archery bow sighting device is disclosed in which the flexible sight pin is mounted to the body of the sighting device to permit universal flexing movement of the sight pin upon encountering a force of greater magnitude. The flexible sight pin includes a first portion attached to the body of the sighting device, a second portion constituting an elongated flexible element connected at one end thereof to the first portion and also to a third portion on the opposite end of the second portion. The third portion terminates in an archer's sight at the free end of the flexible sight pin.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: April 11, 1989
    Inventor: Donald R. Sappington
  • Patent number: 4813150
    Abstract: A sighting device for use with an archery bow, comprising a mounting plate mountable on the bow; an elongated support track attached to the mounting plate; at least one blade-like sight element connected generally perpendicular to the support track, the blade-like element being oriented edge-wise relative to the line of sight of the archer, a light emitting diode attached to the blade-like element along the edge thereof facing the archer, the light emitting diode being electrically connectable to an electrical power source; switch means controlling activation of the light emitting diode by the electrical power source; means for manually adjusting the light emitting diode vertically and horizontally, and draw indicator means indicating the position of an arrow used with the bow, the draw indicator means being operative to switch the switch means to activate the light emitting diode when the arrow is at a predetermined position.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: March 21, 1989
    Inventor: Richard Colvin
  • Patent number: 4796364
    Abstract: A pendulum bow sight has a sight housing, a pendulum sight mounted within the sight housing, and a sight window disposed on the sight housing. A plurality of sighting pins are mounted on both vertical sides of the sight window. The sight window may be moved relative to the sight housing between a first position in which the sighting pins are located within the sight of the sight housing and a second position in which the sighting pins are located outside the line of sight of the sight housing. The pendulum sight is movable between a first position in which the pendulum sight is locked out of the line of sight of the sight housing and a second position in which the pendulum is allowed to pivot freely within the line of sight of the sight housing. The pendulum uses a light emitting diode as the sighting bead and means for conveniently turning the light emitting diode on and off are provided.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: January 10, 1989
    Inventor: Joseph A. Amacker
  • Patent number: 4794702
    Abstract: A bow sight pivoted to provide accuracy regardless of the elevation above the target and having sighting pins, adjustable both for elevation and for lateral deviation. The tilting plate carrying the pins can be locked into place for ease of carrying or for use in level shooting. This sight is usable on either right or left handed bows.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: January 3, 1989
    Inventor: Paul D. Martin
  • Patent number: 4788961
    Abstract: An archery bow having accessories attached to the bow by a support block having an internal opening which receives a tang extending from an archery accessory. Accessories which may be attached to the bow include a detachable sight, an auxiliary arrow holder and a bow-fishing reel. More than one accessory may be locked to the support block. A shoulder is formed where the tang extends from the accessory to aid in positioning the accessory in the support block. The auxiliary arrow holder is an arm having a arrow support bracket on the end opposite the tang which includes a plurality of resilient fingers aligned on opposite sides and axially offset from each other for gripping the shaft of an arrow. The bow-fishing accessory includes a reel having a thin rim with a concave perimeter and a brace offset from the central axis of the rim. The reel is connected to the support block by an arm extending between the brace and the tang.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: December 6, 1988
    Inventor: Dennis M. Toth
  • Patent number: 4785541
    Abstract: A bow mountable range finder for elevated tree stand use includes a housing and a triangular tubular chamber containing air and medium viscosity liquid. The triangular chamber contains a horizontal venting section, a vertical indicating section, an inclined section and a horizontal reservoir with air and liquid freely movable throughout chamber depending upon the orientation of the range finder. The indicating section is translucent and has a removable graduated scale calibrated for various heights above ground, a battery powered lamp illuminates through the indicating section and scale. A switch is operable by an archer outwardly of the housing.The reservoir section is sized to accommodate approximately one-half the fluid capacity of the indicating section when the range finder is horizontal and thus allows for rapid lowering of the liquid level when the range finder is rotated counterclockwise.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: November 22, 1988
    Inventor: Abner P. Lowry
  • Patent number: 4785791
    Abstract: A bow sight transportation cover having an essentially rectangular protective housing with one open side end into which the bow sight projects. The housing is secured to the central portion of the bow by slidably engaging a mounting bracket attached directly to the bow sight. The housing can be modified to slide either horizontally or vertically onto the mounting bracket. The bow sight cover can be constructed of transparent material and provided with a recess for the arrow to pass through. Alternatively, the vertical position of the housing can be adjusted by mounting the housing on an elongated bar which extends between the two end portions of the bow.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: November 22, 1988
    Inventor: John R. Sloop
  • Patent number: 4761888
    Abstract: The archery bowsight of this invention includes windage and elevation carriages which are adjustable by rack and gear connections, and also includes a bubble level the axis of which is adjustable relative to said carriages to position it perpendicular to the longitudinal axis of an arrow supported on the arrow rest of the archery bow.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 9, 1988
    Inventor: Donald S. Kudlacek
  • Patent number: 4757614
    Abstract: An archery bow sight includes a plate arranged for removable attachment to the handle portion of an archery bow and supporting a longitudinally extendable mounting arm which mounts at its forward end a horizontally extending support to which a vertically elongated sight bar is mounted for horizontal windage adjustment. The sight bar mounts a plurality of sight pin blocks by means of interconnecting dovetail components, the blocks extending transversely across the sight bar for adjustment along the length of the sight bar. An elongated threaded sight pin member extends adjustably through a threaded bore in each block in the transverse direction of the sight bar, and a slot intercepts the dovetail component and sight pin bore in the block. A clamp screw in the block extends across the slot and operates upon rotation in one direction to clamp the block to the sight bar and the sight pin to the block.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: July 19, 1988
    Inventor: Donald S. Kudlacek
  • Patent number: 4756295
    Abstract: A compound bow using a toggle link assembly to provide improved arrow speed, greater accuracy and improved ease of tuning and use. The bow basically includes first and second spaced bow limbs having a bowstring extending between their outer ends and having their other ends attached through power links to the opposite ends of a main riser. An adjustable connection between the limbs causes them to move in unison. A power canister is secured to the riser adjacent to one of the limb attachments. A toggle link assembly is connected between a power storage compression spring in the canister, and a link on the adjacent limb. As the bowstring is drawn with an arrow in the conventional manner, the toggle link assembly causes energy to be stored in the canister, such as by compressing the spring. When the bowstring is released, the stored energy imparts acceleration to the arrow through the toggle link assembly, limbs and bowstring.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: July 12, 1988
    Inventor: Matthew P. Guzzetta
  • Patent number: 4753528
    Abstract: A method and apparatus for determining distance from a bow to a target at which the bow is aimed in which a beam of collimated light from a laser is directed to the target and reflected to a linear photosensitive element mounted on the bow. The element and laser are positioned on the bow so that the linear position of the incident reflected beam varies with the target distance and the element produces an output indicating the position. A circuit receives that output and produces a display of the target distance.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: June 28, 1988
    Assignee: Quantime, Inc.
    Inventors: Robin H. Hines, Michael R. Glasscock, D. Bruce Johnson, Paul L. Plummer
  • Patent number: 4733474
    Abstract: The present invention provides an archery sight having an elongated housing which is secured to the bow. A first opening extends through the front and rear sides of the housing while a second opening is longitudinally positioned from the first opening and is only opened to the front side of the bow. A planar mirror is secured along one side of the first opening while the housing and a parabolic mirror is contained within the housing and alinged with the second opening. The other side of the first opening is transparent so that a split image is viewed through the first opening. Both the parabolic mirror and the planar mirror are arranged so that when the halves of the split image viewed through the first opening are aligned, the bow is properly aimed. In another form of the invention, two planar mirrors are contained in the housing while a parabolic mirror is disposed across the second opening. The mirrors can also be constructed as a prism.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: March 29, 1988
    Inventor: John W. Cary
  • Patent number: 4726123
    Abstract: A rapidly adjustable bow sight, which includes a substantially vertical plate having an integral lever arm extending uwpardly and downwardly therefrom, a rotatable member journaled for rotation on the plate, a pin or blade extending horizontally from the rotatable member, and a connector arm pivotally attached to the upper extremity of the lever arm and to the rotatable member. The bow sight is adjustable with one finger of the hand grasping the bow, including while the bow string is drawn.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: February 23, 1988
    Inventor: Roy W. Keller
  • Patent number: 4720919
    Abstract: An archery bow sight adapted for tree stand use and of the type which includes a pendulum-like element which is pivotal about a support shaft in response to changes in bow attitude, including angular disposition of the bow. The bow sight is characterized in that there is provided a motion-damping assembly for reducing the time duration of oscillation of the pendulum-like or pendulous element and the sight connected thereto as the pendant body seeks a stable rest position correlated with a given elected and selectable bow orientation. The desired damping may be achieved by any of several types of effective mechanisms and techniques including a damping arm or vane impeded by a fluid medium, magnetic friction forces, and dash pot arrangements.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: January 26, 1988
    Inventor: Charles A. Saunders
  • Patent number: 4715126
    Abstract: An archery bow sight having a plurality of sighting pins for setting range includes a plurality of pin receiving and holding blocks mounted in a mounting block that defines a path of travel for such receiving and holding blocks. The sighting pins are received and held by the receiving and holding blocks and move with them. Apparatus such as a threaded shaft and thumbscrew arangement is manually operated to move individual receiving and holding blocks along their paths of travel and to hold such blocks in position whenever operation of the respective moving apparatus is stopped. In this way, individual receiving blocks and sighting pins received therein are held in position unless positively moved by operation of respective moving apparatus.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: December 29, 1987
    Inventor: Terry Holt
  • Patent number: 4711036
    Abstract: A pendulum operated, oscillating bow sight is disclosed for use in aiming a bow and arrow. A sighting pin is moved through the range of sighting distances by a lever having a pendulum counterweight on one arm and a sighting pin operatively connected to the other arm. As the elevation of the bow is changed, the pendulum remains in the same relative position, the lever acting to move the sighting pin for an accurate sighting of the target. Only the sighting pin projects into the sight window of the bow, thereby assuring the archer full visibility from the pin to the target, the operative mechanism being mounted on the side of the bow opposite the sight window.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: December 8, 1987
    Inventor: Eddy Morris
  • Patent number: 4704800
    Abstract: A multi-purpose archery accessory-mounting device is disclosed, having a main support base which mounts on the bow by use of standardized mounting means customarily provided on the bow handle, and including an adjustable mounting member which projects forwardly of the bow handle and which incorporates the standardized mounting aperture array which corresponds to the standardized array of mounting screws utilized on standard "flat-type" bow sights. The apparatus further includes a cable guard projecting in a direction opposite that of the bow sight-mounting member, to overlie the cable on a compound bow. Additionally, the apparatus incorporates an integral mount for detachably receiving an arrow quiver of the "bow-mount" type, in a position alongside the bow handle but closer to the archer than the position of the bow sight.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: November 10, 1987
    Inventor: Robert E. Stinson
  • Patent number: 4697350
    Abstract: A combination bracket for securing to a bow. The bracket in a unitary and properly spaced fashion, provides for the mounting of a bow quiver, and also a sight for the archer to use in aiming the bow. More specifically the unit includes a central combination bracket mounting segment from which the sight bracket extends in one direction and the bow quiver bracket extends in another direction. The unit is symmetrical about a horizontal axis. This symmetrical configuration makes the mount suitable for left-hand or right-hand applications. The unit may be produced by injection molding of plastic, machining, or casting by the various known techniques.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: October 6, 1987
    Assignee: Precision Shooting Equipment Company
    Inventors: Pete Shepley, Richard Johnston, Allan F. Smith
  • Patent number: 4689887
    Abstract: A sighting device for use with an archery bow, comprising a mounting plate mountable on the bow; an elongated support track attached to the mounting plate; at least one blade-like sight element connected generally perpendicular to the support track, the blade-like element being oriented edge-wise relative to the line of sight of the archer, a light emitting diode attached to the blade-like element along the edge thereof facing the archer, the light emitting diode being electrically connectable to an electrical power source; switch means controlling activation of the light emitting diode by the electrical power source; means for manually adjusting the light emitting diode vertically and horizontally, and draw indicator means indicating the position of an arrow used with the bow, the draw indicator means being operative to switch the switch means to activate the light emitting diode when the arrow is at a predetermined position.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: September 1, 1987
    Inventor: Richard Colvin
  • Patent number: 4669196
    Abstract: A rangefinding adjustable bow sight for use with an archery bow having a mediate grip portion. A frame is adapted for rigid attachment to the bow adjacent the grip portion. A lead screw is mounted to the frame such that the axis of the lead screw is generally parallel to the length of the bow, and such that rotation of the lead screw about its axis with respect to the frame is permitted. The lead screw has a first section having a first thread pitch and a second section having a second thread pitch different from the first thread pitch. A first rangefinding pin is fixed to the frame. A second rangefinding pin is movably mounted to the frame by a follower block threadedly engaging the first section of the lead screw for moving the second rangefinding pin axially with respect to the lead screw as the lead screw is rotated.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: June 2, 1987
    Inventor: Anthony E. Kersey
  • Patent number: 4669194
    Abstract: The present invention relates to an archery bow sight having a bracket mounted at the mid-section of the box. The bracket has a pair of vertical parallel slots therein, and a plurality of horizontally and vertically adjustable sight pins are mounted within the vertical slots of the bracket. Each sight pin in the first vertical slot is aligned with a sight pin in the second vertical slot so that it can be used to sight a target at a specific distance from the bow, and each pair of sight pins is adjusted for sighting targets at different distances from the bow. When using the sight of the present invention, the archer first estimates the distance between the target and the bow, and then determines which pair of sight pins is best adjusted for a target at that distance. The archer then sights the target using the properly adjusted pair of sight pins.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: June 2, 1987
    Inventor: Joseph A. Amacker
  • Patent number: 4662347
    Abstract: An archery sight is disclosed which may be mounted on a bow, and which has one or more sight pins or similar reference points which may be sighted over an object target, and which has an additional sight pin or similar reference point which may be sighted over a target located on the bow, so that when each pin appears over the respective targets, the precise position of the bow is defined which will produce an accurate shot.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: May 5, 1987
    Inventor: William G. Carlton