Abstract: A crossbow in some embodiments may include two power cables and two power cable wheels. Each power cable may extend from a bowstring wheel, to a power cable wheel and then back to the bowstring wheel. A crossbow in some other embodiments may include four power cables and two power cable wheels. Each power cable may extend from a bowstring wheel, to a power cable wheel and then to a portion of the crossbow that does not move relative to the main beam.

Abstract: Provided is a bow assembly comprising a main beam elongated in a first direction to define a distal end, and a proximal end, wherein the distal end has a distal end facing surface from which extend, an upper member, and a lower member having a first set of threads thereon; and a riser having a proximate facing surface, an upper groove dimensioned to engage the upper member, and a lower opening through hole dimensioned to engage the lower member; a threaded fastener adapted to threadedly engaged the first set of threads; and wherein the riser is assembled with the main beam and the threaded fastener such that the upper member is inserted within the upper groove, the lower member is inserted within the lower opening, the distal end facing surface faces the proximate facing surface, and the threaded fastener is threadedly engaged with the first set of threads.

Abstract: Provided is a crossbow barrel comprising a first elongated shaft having a proximal end of the first elongated shaft and a distal end of the first elongated shaft opposite the proximal end of the first elongated shaft; and a second elongated shaft having a proximal end of the second elongated shaft, a distal end of the second elongated shaft opposite the proximal end of the second elongated shaft.

Abstract: The present invention is a riser cam bow having a first bow limb and second bow limb extending respectively from a first and second riser end. Each bow limb having a first end and a second end, said first end of said each bow limb being attached to the riser end. Each bow limb attached to each first riser end in a reverse manner, where the first end of each bow limb attaches to an outside surface of each riser end so that each bow limb follows along said outside surface of each riser end towards a middle of each riser and travels past the outside surface and an inside surface such that each second end of each bow limb is between the inside surface and the user.

Abstract: A ball throwing machine can include a hopper for receiving one or more balls and a ball delivery device. The ball delivery device can be used to throw or pitch a ball from the hopper to a user of the machine. The ball delivery device can include wheels to impart speed to the ball and a direction system to control the projection angle of the ball. The direction system can control at least one of the up and down angle and the side to side angle of the ball as it is thrown, among possibly other throwing parameters. A controller may be provided for controlling operation of the ball throwing machine.

Abstract: A toy is disclosed. The toy includes a toy building block, a snap-together electronic toy, and an adapter. The toy building block includes a first building block mating member. The snap-together electronic toy includes a first snap-fitting member. The adapter is configured to connect the toy building block to the snap-together electronic toy. The adapter includes a second building block mating member which is configured to mate with the first building block mating member of the toy building block, and a second snap-fitting member which is configured to mate with the first snap-fitting member of the snap-together electronic toy.

Abstract: The invention discloses a lighted nock device, including a nock body, an LED, a battery, a conductive mounting base, a conductive shift block and an on-off component arranged between the conductive shift block and the conductive mounting base to control connection and disconnection of the conductive shift block and the conductive mounting base. Connection and disconnection of the battery and the LED can be achieved quickly, so that the LED can be turned on or off quickly, with convenient operation and recycling use.

Abstract: There is provided an article, the article being moveable between a first position and a second position and biased to the second position. The article is retained in the first position until a predetermined condition is met, and wherein when said predetermined condition is met the article moves from the first position to the second position.

Abstract: A sight configured to properly align a weapon in the left and right direction and in the vertical direction with respect to a target without the need to separately range the target. In particular, once the shooter aligns indicia on the site with structure on the target the weapon is properly aligned and ready firing. Knowledge of the distance between the shooter and the target is not necessary to adjust for projectile drop. Related method of use and manufacture are also provided.

Abstract: A wobbling toy is configured to spontaneously re-orient itself in an upright position solely under the force of gravity. The self-righting toy includes a weight that is confined to and movable along a pathway such that the weight defines a dynamic mass that is sufficient to cause the housing to spontaneously pivot along a convex outer surface profile in coordination with a position of the weight in the pathway. The self-righting toy is configured to maintain a positional relationship of the weight so that the housing is spontaneously pivotable along the convex surface without external force supplied by a user.

Abstract: Provided is a universal nock system comprising a first axis defining an axial direction and radial directions perpendicular to the axial direction; a nock having, a first side having a bowstring reception surface having concave channels, a second side opposite the first side, an axial contact surface, and an exterior surface; an insert portion extending from the second side of the nock, elongated along the first axis, and adapted for insertion into an associated arrow body, the insert portion having, a first end, a second end opposite the first end having a centering feature of the second end, the centering feature of the second end having contact surfaces, and a middle portion located along the first axis of elongation between the first end and the second end, the middle portion having a centering feature of the middle portion, the centering feature of the middle portion having contact surfaces.

Abstract: The invention relates to a modular education and toy block having at least one piece 10 having a body (11), a jointer (20) working with comb fitting principle (finger joint), having recesses and/or protrusions that each of them is in triangular on at least one surface of the joinder (20) which is appropriate to form new pieces (10) by combining the piece (10) with another piece (10).

Abstract: An archery shaft for an arrow is disclosed herein. The archery shaft, in an embodiment, includes an elongated member formed from a compound. The compound includes a thermoplastic material and a plurality of reinforcement fibers embedded therein. The plurality of reinforcement fibers are positioned so as to be parallel to each other.

Abstract: A toy dart includes a deformable cap that safely impacts a target. The cap includes two layers of substantially parallel hollow passages that provide spaces that allow the cap to deform. The lower layer, having two hollow passages, is supported by exterior posts and an interior wall between the two hollow passages. The upper layer, having three hollow passages, is supported by exterior posts and interior walls that are laterally offset from the interior wall of the lower layer. The upper and lower layers are separated vertically by a substantially flat divider. Due to the difference in the number of hollow passages and interior walls in each layer, the upper layer is more rigid than the lower layer such that the lower layer of the cap deforms more than the upper layer of the cap upon initial impact with the target.

Abstract: A combination stuffed toy, sleeping bag, and storage enclosure including a foldable sleeping bag and a flexible stuffed covering. Each of a plurality of a pair of interconnectable strap buckles is attached to the flexible stuffed covering within each of a plurality of a pair of strap pockets disposed on the flexible stuffed covering. A handle is centrally attached to an upper side of the flexible stuffed covering. A first fastening element of each of a plurality of fasteners is disposed on a lower side of the flexible stuffed covering, and a second fastening element of each of the plurality of fasteners is disposed on each of the upper side of the flexible stuffed covering and the foldable sleeping bag. The first fastening element of each of the plurality of fasteners is detachably connected to the second fastening element of each of the plurality of fasteners.

Abstract: A ball-launching device includes a housing, ball holder, elastomeric member, cocking member, latch, and trigger assembly. The housing has an opening at a first end defining an elongated cavity. The ball holder is disposed in the cavity and slidable in an axial direction from a first position proximate to the opening at the housing first end, to a second position. The elastomeric member is selectively arranged within the housing to bias the ball holder toward the first position. The cocking member includes a first portion disposed outside of the housing, being usable to move the ball holder into a cocked position, where the latch opposes the bias of the elastomeric member and releasably secures the cocking member and the ball holder. Actuating the trigger assembly releases the latch, permitting the elastomeric member to accelerate the ball holder towards the housing first end to launch the ball therefrom.

Abstract: A retention structure of a crossbow contains a fixer including a seat, a rolling element, a resilient element, and a shock absorber. The seat has an affix sheet, a fitting tube, at least one threaded aperture, an accommodation aperture, and an engagement portion. A diameter of the engagement portion is less than that of the accommodation aperture. The seat contacts with the connection mount. At least one screwing element screws with the at least one threaded aperture via the at least one locking orifice. The rolling element is housed in the accommodation aperture of the seat and is limited by the engagement portion. The resilient element is housed in the accommodation aperture and abuts against the connection mount and the rolling element. The shock absorber has a through hole and fits on the fitting tube of the seat by using the through hole.

Abstract: A high impact strength lighted nock assembly for an arrow that is activated when the arrow is fired with a bowstring. The lighted nock assembly includes a nock molded from a high impact strength, transparent polymeric material containing at least 10% by weight reinforcing fibers. The nock includes a head configured to engage with the bowstring and a shank configured to couple with a rear end of the arrow. The shank includes a recess extending in a distal end of the shank toward the head. A light assembly including a light emitting device is located in the recess in the shank that is electrically coupled to a battery. A switch is electrically coupled to the light emitting device and the battery that is triggered when the arrow is fired to activate the light emitting device.

Abstract: An auxiliary cutting implement for attachment between a broadhead and arrow shaft includes preferably two or more coils each having two cutting edges formed along their opposite elongated side edges. As the coils pass through the animal they unroll and slice through animal flesh in all directions. The coils are biased toward their rolled position which increases the multi-directional movement of the coil and cutting edges through the animal resulting in a large cutting area and fast kill as compared to the broadhead alone.

Abstract: An apparatus, system, and method are disclosed for building a structure that includes a substantially triangular cross-sectional shape having an outside face opposing an inside face. The outside face is connected to the inside face by a first wall, a second wall, and a third wall. Each wall includes a first projection has an outer surface that is continuous with the outside face, a first recess that is positioned opposite and extends away from the first projection, a second projection that has an inner surface that is continuous with the inside face, a second recess that is positioned opposite and extends away from the second projection, and a coupling projection. The coupling projection is positioned opposite at least one of the first recess and the second recess.