Abstract: An operating system of an arrow launching device utilizes the combination of a speed-limited winch together with a nock-release and passive fall away arrow rest within torsion-driven compact arrow launching devices that employ counter-acting block and tackle propulsion. The system enables a novel method of cocking, firing and de-cocking that improves safety, enhances reliability and increases efficiency.

Abstract: The disclosed technology includes a semi-automatic crossbow having a stock, a plurality of limbs, a drawstring, a bolt feeder, a barrel, a draw assembly, and a release. The draw assembly can be configured to automatically move the drawstring to a cocked position and the release can include a trigger and be configured to release the drawstring when the trigger is actuated. The disclosed technology can further include a truck configured to engage the drawstring and a bolt such that the bolt can be propelled forward by the truck when the drawstring is released by the release.

Abstract: A ball striking device, such as a golf club head, includes a face having a ball striking surface, an inner surface opposite the ball striking surface, and a thickness defined between the ball striking surface and the inner surface, and a body connected to the face and extending rearward from the face. The face has a modulus gradient across the thickness of the face, such that the modulus of the face varies at different distances from the ball striking surface. The face may also include at least one of an insert, a composite material, a multi-layered structure, and/or a portion treated by a surface treatment to contribute to the modulus gradient.

Abstract: A throwing weapon (100) is described as comprising: a central portion (105) mainly ex-tending along a predetermined longitudinal axis (Y), a pair of first sharp portions (130, 135), which respectively extend from the opposite axial ends (110, 115) of the central portion (105) in a direction parallel to the longitudinal axis (Y), and a pair of second sharp portions (150, 155), which protrude transversely from the central portion (105), wherein said second sharp portions (150, 155) extend from opposite parts of the central portion (105), in directions orthogonal to the longitudinal axis (Y), and are mutually off-set along the longitudinal axis (Y) itself.

Abstract: A basketball practice device for training a player to shoot with hir or her arms up includes a base member. The basketball practice device also includes a vertical member coupled to the base member. The vertical member has a lower end coupled to the base and an upper end. The basketball practice device further includes a horizontal member coupled to the upper end of the vertical member. Vertical guideposts may be coupled to the horizontal member.

Abstract: The present invention discloses an EPP modular splicing based golf simulator framework which, through the core connection method of “rod insertion”, enables any two module boards form a stable connection directly through steel pipes, allowing users to freely and continuously adjust the length, width, height, and depth of framework like building blocks, without using specific tools, merely by increasing or decreasing the number of standard modules and changing the insertion path of connecting rods, making it perfectly fit limited spaces, and the use of lightweight EPP material as the main structural component, along with the completely discrete design, allows the entire frame to stack and store module boards and bundle connecting rods after disassembly, greatly reducing transportation volume and weight, and enabling convenient personal handling and storage, and the standardized module design and minimalist installation process reduce the dependence on professional installers and save installation time and labo

Abstract: A golf ball has a first hemisphere and a second hemisphere and a plurality of dimples arranged in a pattern divided into dimple segments separated by n longitudinal lines. Within each hemisphere, the plurality of dimples consists of shared dimples that are intersected by the longitudinal lines and segment dimples that are each wholly within one of the n number of dimple segments. The arrangement of the shared dimples on each of the longitudinal lines is identical. The n number of dimple segments comprise at least two segments, S1 and S2, in each hemisphere that have a different longitudinal angle from each other. The S1 segment has a first value for a segment parameter and the S2 segment has a second value for the segment parameter. The first value is different than the second value.

Abstract: A motion platform comprises a base portion and an occupant carrier portion. The occupant carrier portion is linearly moveable along, and rotationally moveable about, first, second, and third orthogonal axes. The base portion comprises first, second, and third control pillars each extend along the third axis with a predetermined height. The control pillars are linearly moveable in a plane defined by the first and second axes and are mechanically constrained to move only in that plane. The occupant carrier portion comprises first, second, and third guide portions that are pivotally connected to the first, second, and third control pillars respectively by a respective coupling member. Each of the guide portions is angled with respect to the plane defined by the first and second axes such that they are not parallel to the plane. The guide portions are also angled with respect to each other such that they are not parallel with each other.

Abstract: The present teachings generally include flexible pickleball paddles and/or frames thereof. In an aspect, a frame of a paddle includes a region adjacent to a throat portion of the paddle that is thinner than other regions of the frame, e.g., thicker regions disposed along its sides, top, and/or handle. The lack of material in this portion of the frame—e.g., disposed directly above the handle—may provide advantageous flexing of the paddle during play (e.g., how fast the paddle can return to the original shape after being flexed), improving power characteristics, control, feel, responsiveness, and/or the like. Moreover, a gap formed by the lack of material in this portion of the frame can provide a region for enhanced weight control (e.g., by filling the gap with a weighted material), and/or for enhanced sound or vibration control (e.g., by filling the gap with a sound dampening and/or vibration dampening material).

Abstract: Systems and apparatus for receiving golf balls include an apparatus including: a body having an ingress and an egress for golf balls passing through the body, wherein each of the golf balls includes a radio frequency identification tag; at least one antenna of a radio frequency identification reader, the at least one antenna arranged with respect to the body to receive information from the golf balls for identification of the golf balls; and multiple protrusions located within the body, the multiple protrusions being positioned with respect to each other in a Galton configuration that both (i) impedes the golf balls from passing through the body without being read by the radio frequency identification reader, and (ii) allows the golf balls to pass through the body without jamming therein.

Abstract: A basketball training system includes a user interface and a ball delivery machine for delivering basketballs to selected ball delivery locations. The user interface presents a visual representation of a portion of a basketball court and a graphical ball delivery machine icon that is user movable to modify a location of the graphical ball delivery machine icon with respect to the visual representation of the portion of the basketball court.

Abstract: Novel and advantageous portable pitching lanes for softball are disclosed. In one embodiment, a pitching lane for softball is disclosed comprising a foundation layer, a surface layer, and a pitching rubber. The portable pitching lane is movable from place to place when not in use, but does not move when in use.

Abstract: A hybrid stabilizer rod preferably includes a stabilizer tube, a first end cap and a second end cap. The stabilizer tube preferably includes a base tube, a first carbon fiber sheet and a second carbon fiber sheet. The first carbon fiber sheet includes a plurality of parallel fibers. The second carbon fiber sheet includes a plurality of first and second fibers. The first carbon fiber sheet is wrapped around the base tube. The second carbon fiber sheet is wrapped around the first carbon fiber sheet. The first and second end caps preferably include a thin head formed on a first end of a cap body and a tapered bore formed in a second end of the cap body. A threaded tap is formed in the first end of the cap body. An outer perimeter of cap body is sized to be received by an inner perimeter of the base tube.

Abstract: A golf club protector that may be magnetically attached to a golf club iron to provide a protective, covering layer over at least the face of the iron. The golf club protector is formed from body having an inner layer, an outer later, and an intermediate layer positioned between the inner and outer layers. A series of magnets are positioned in the intermediate layer. The body has an outer perimeter corresponding to the shape of a golf club iron and is dimensioned to be positioned in covering relation to a face of the golf club iron.

Abstract: In some embodiments, an archery stabilizer comprises a bar arranged to engage an archery bow. A mount is supported by the bar. The mount comprises a receptacle. A weight is supported by the mount. The weight comprises a coupler engaged with the receptacle.

Abstract: The disclosure provides a badminton net rack, comprising a base, has an grounding side and a mounting side opposite to each other, the base comprises two seat bodies, a support rod connecting the two seat bodies, and a connector spanning the support rod, the connector comprises a first stuck part and a second stuck part, the first stuck part is used for stuck badminton racket; two telescopic rods, can be switched between an inverted trapezoidal state and a stuck state, in the inverted trapezoidal state, the two telescopic rods are respectively connected to the two seat bodies to form an inverted trapezoidal structure for installing a ball net, in the stuck state, the two telescopic rods are respectively stuck to the two second stuck parts of the connector. The above-mentioned badminton net rack has various functions, is more portable and has better stability.

Abstract: A compound bow includes a cable assembly including an adjustment assembly. The adjustment assembly has a first unit and a second unit on a rotational axis of the cable assembly. A first cable segment has a terminal end rotationally fixed to the first unit. A second cable segment has a terminal end rotationally fixed to the second unit. The adjustment assembly includes a lock between the first unit and the second unit. The lock is movable between a locked position and an unlocked position. The first unit and the second unit are rotatable relative to each other about the rotational axis R of the adjustment assembly when the lock is in the unlocked position. The first unit and the second unit are fixed relative to each other about the rotational axis of the adjustment assembly when the lock is in the locked position.

Abstract: An unmanned quadcopter aircraft system integrated with a pneumatic paintball projectile launching mechanism for recreational and training applications. The system includes a compressed gas powered single-shot paintball launcher with gravity-fed ammunition hopper, mechanical counterweight recoil compensation, and multiple electronic safety systems. GPS-based geofencing prevents firing in restricted zones, while altitude sensors prevent firing above predetermined heights. The flight control system automatically reduces aircraft speed and altitude limits when the projectile system is armed. A ground control system integrates standard flight controls with firing controls, safety indicators, and emergency stop capability. An alternative embodiment allows a used to adjust the elevation of the firing system while maintaining the orientation of the drone in space and also allowing recoil compensation.

Abstract: A weight support apparatus and method of use for attachment to an archery bow. The apparatus includes a base having two wings that extend laterally out to support the weight of a bow. Arms are positioned perpendicularly on the base forming a gap between opposing arms to receive a portion of a bow. One or more arms are provided to mount the apparatus on a bow by introducing a portion of the bow between the arms. A through bolt is also provided that secures the apparatus to the bow by tightening the arms against the bow.

Abstract: A system and method for recovery of undamaged frangible aerial targets at shooting ranges includes a net positioned horizontally above ground level to cover a target fall zone. The net has mesh openings sized to retain undamaged frangible aerial targets while allowing damaged targets to pass through. The net forms a closed loop around parallel elongated front and rear rollers supported above ground by a plurality of fixed caster assemblies. A motor operatively coupled to at least one roller drives the net in a conveyor-like motion. Undamaged targets landing on the net are transported by the net to a collection area positioned adjacent to the front roller. The system may include friction strips on the rollers to enhance traction and a protective barrier shielding the collection area from stray shotgun pellets, thereby enabling recovery and reuse of targets that would otherwise break upon ground impact.