Abstract: A golf club head includes a body formed layer by layer and having a topline, a sole, and an internal cavity arranged between the topline and the sole. The golf club head further includes at least one aperture formed through at least one of a hosel extending from the body, a rear surface of the body, and a toe portion of the body. The at least one aperture is configured to form a flow path that extends along the internal cavity and the at least one aperture.

Abstract: A co-forged iron type golf club is disclosed. More specifically, the present invention discloses an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like. The resultant golf club head may be capable of achieving center of gravity locations previously unachievable without utilizing this co-forging technique. The resultant golf club head may be used to create a set of golf club heads with center of gravity locations that are more advantageous throughout a set of golf clubs.

Abstract: The present disclosure relates to a hula hoop. The hula hoop includes a track assembly with a plurality of track units interconnected end-to-end and a slider provided with rollers. The track unit includes an outer track having a receiving channel located at a first end and a protruding portion located at a second end opposite to the first end, a pressing component configured to secure two adjacent track units, and an inner track for jointly defining a circular path with the outer track. The rollers of the slider are configured to slide along the circular path. The hula hoop of the present disclosure is easy to assemble and disassemble.

Abstract: A wearable toy robotic arm, related to a technical field of building toys, including an execution device and a control. The execution device includes a first frame body, a first transmission mechanism, a mechanical gripper, and a first reset elastic component. The mechanical gripper is disposed on the first frame body, the first transmission mechanism includes a first transmission component, the first transmission component is configured to drive the mechanical gripper to open, and the first reset elastic component is configured to drive the first transmission component to reset. The control device includes a second frame body, a first instruction mechanism, at least one second reset elastic component, and a first sliding component. The first instruction mechanism is rotatably disposed on the second frame body, the second reset elastic component is configured to drive the first instruction mechanism to reset.

Abstract: A bubble producing device that includes a housing with a motor, a pump and an air producing device, all of which are electrically connected. A shaft with two ends, one end of which is connected to said housing and the second end is connectable to a bubble producing solution reservoir. A duct connected on one end to the air producing device and on the other end to a nozzle. The nozzle includes an open inner portion and an outer portion, wherein the outer portion includes a trough which surrounds an outer circumference of the nozzle and includes an outlet and an inlet. The inner portion includes a wiper secured therein. A solution channel pumps solution from the reservoir to the outlet to create bubbles and a recirculation channel pumps excess solution from the inlet back to the reservoir.

Abstract: A remote-control aircraft comprises an aircraft body with a mounting platform provided with a connecting part and first magnet(s), and the connecting part is perforated with a connecting hole; and comprises an aircraft wing with an inserting part and second magnet(s) on its underside close to the aircraft body, the inserting part is rotationally inserted into the connecting hole, the second magnet and the first magnet are connected by magnetic attraction, and the aircraft wing is in close contact with the mounting platform. Thus, the aircraft wing and body can be quickly assembled and disassembled and can be carried conveniently. While the aircraft wing collides with an obstacle, it can be rotated around the inserting part as the center, and the impact force can be unloaded by rotating to prevent the aircraft wing from being damaged and prevent the aircraft wing from being separated from the aircraft body.

Abstract: One or more transparent or translucent sheets of cellophane are folded and cuts are made to create symmetric patterns and designs. The cellophane creates diffraction, refraction, interference, and reflection pattern of light that become strikingly visible when viewed under polarized light. The cellophane patterns and designs are placed on top of one another such that the holes in the overlapping sheets cause a variation in the path of light traveling through the layers of the cellophane, creating beautiful and varied optical patterns of light that change with the placement of the layers of cellophane and with variation of the angle of polarized light for a kaleidoscope effect. The cellophane is viewed against the backdrop of a blue sky to provide a source of polarized light. Placing the cellophane on glossy black cardboard brings out the prismatic colors created by light refraction and reflection.

Abstract: The present invention relates to an exchangeable optical principles demonstrating kit. The kit includes a retractable sleeve structure having a first end and a second end; a grating plate including a grating film; and a pinhole plate including a pinhole opening, wherein the grating plate is selectively attached to the retractable sleeve structure by a magnetic connection, to render the exchangeable optical principles demonstrating kit to form an optical interference principle demonstrating device, and the pinhole plate is selectively attached to the retractable sleeve structure by a magnetic connection, to render the exchangeable optical principles demonstrating kit to form an optical pinhole principle demonstrating device.

Abstract: An iron-type golf club head and set having a passageway extending from a closed void behind the face and accessible from an exterior of the body.

Abstract: An apparatus, methods and systems are provided for creating a shot information database comprising ball flight data combined with a user's intended golf shot type, the user's golf club selection, the user's setup position and dynamic swing adjustment made to produce the golfer's intended golf shot with the selected golf club to produce said golf shot. This invention presents to the user such information as a “score,” wherein said score reflects the accuracy of the user's golf shot. In addition, the ball flight data includes a trajectory angle, an elevation angle, a quadrant in a “target plane” comprising an x-y coordinate system coplanar with said target plane and a characterization of a type of golf shot produced by said golfer, such as a “draw.

Abstract: The present disclosure provides an accessory and an inflatable doll, the accessory includes a housing, a plurality of first air blowers at least partially mounted in the housing, and a main controller, the housing includes a first air inlet portion and a first air outlet portion, each first air blower includes a second air inlet portion communicated with the first air inlet portion and a second air outlet portion communicated with the first air outlet portion, the main controller is electrically connected to the first air blowers and configured to control operations of the first air blowers.

Abstract: A golf club head includes a first portion joined to a second portion to at least partially define an interior club head volume. The first portion includes a wall defining an outer boundary of the club head volume, and a support rib extending from the wall to operatively stiffen the first portion. The second portion of the golf club head can engage the support rib, and the support rib can be adhered to the second portion to join the first portion and the second portion.

Abstract: A golf club incorporating a plurality of projections extending from on the crown section.

Abstract: A simulated crawling robot includes a spider web support frame, an arc-shaped track is fixedly mounted on the spider web support frame via a track fixing screw; a spider bionic robot is movably mounted on the arc-shaped track via a straddle wheel set; the spider bionic robot is connected to a rotary joint at the center of the spider web support frame via a slave connect wire; a gear drive mechanism is provided in the spider bionic robot to drive the spider bionic robot forward; the gear drive mechanism is connected to a spider leg slave mechanism via a gear transmission; and the spider leg slave mechanism is connected to a bionic spider leg via a gear transmission.

Abstract: A putting training device attachment including a shaft mount for mounting on a putter shaft; a pendulum assembly mounted on the mount; an indicating gauge connected to the pendulum assembly for indicating a preferred track for the pendulum. A putter is described for training.

Abstract: Kits for leveling and adjusting the slope of cornhole boards as well as a method leveling and adjusting the cornhole boards.

Abstract: A footwear accessory apparatus and system disposed on and within shoes to facilitate movement of one or more accessories around a pre-established track via an electric motor is described. The track is equipped with an internal chain drive disposed in communication with the motor via at least one gear. Accessories are preferably mounted to the chain via at least one magnet which protrudes through a top of the track via a groove. A remote control is preferably configured to enable the user to command the movement of the accessories around the track of each shoe independently. The remote is equipped with a speaker to facilitate the playback of audio and sound effects pertinent to the movement of the accessory. Accessories may be also equipped with internal batteries to facilitate the illumination of interior lights and/or headlights of the accessory.

Abstract: Disclosed herein is a propellent-driven golf club to launch a ball without requiring a swinging action on the propellent-driven golf club. Accordingly, the propellent-driven golf club may include a hollow shaft and a handle attached to the hollow shaft. Further, the propellent-driven golf club may include a golf club head assembly attached to the hollow shaft. Further, the golf club head assembly may include a rotary magazine configured to receive a reloadable wafer, the firing mechanism operationally coupled to the triggering device, a firing cylinder port configured to mate with at least a portion of the cartridge, a vortex generator, a range control mechanism comprising a range control valve fluidly coupled to an egress port of the chamber, a firing cylinder bore fluidly coupled to an outlet of the range control valve, and a piston movably disposed in the firing cylinder bore.

Abstract: A toy vehicle includes a toy vehicle body and a pair of wheel supports located on opposite sides of the toy vehicle body. In one embodiment, each of the wheel supports includes a pair of wheels rotatably mounted to the wheel support. The toy vehicle has a drive system that includes a pair of motors, each of which is operable to move one of the wheel supports and the wheels coupled to the wheel support. Each wheel support is movable between a retracted position in which the wheel support extends along a side of the toy vehicle body, and an extended position in which the wheel support extends downwardly from the toy vehicle body with a front end of the wheel support being spaced apart from the toy vehicle body.

Abstract: A self-balancing golf club with rearward lean. The self-balancing golf putter includes a club head. The club head includes a clubface configured to make contact with a golf ball. The self-balancing golf putter also includes a shaft attached to the club head. The shaft includes a center axis, wherein the center axis converges with a balance point configured to make the club face seek square when making contact with the golf ball.