A portable exercise device includes a first body and a second body. The exercise device also includes a support structure pivotably connecting the first and second bodies. The support structure is configured to move between an engaged position and a disengaged position. The device also includes a resistance mechanism configured to resist movement of the first and second bodies toward one another when the support structure is in the engaged position. When the support structure is in the engaged position, the first body is positioned substantially parallel to the second body such that in a first open, in-use configuration of the device, the first body has a first neutral position relative to a pivot axis and in a second open, in-use configuration of the device, the second body has a second neutral position relative to the pivot axis.

Implemented is a rage relieving device configured to receive physical strikes from a user to enable the user to unleash and release their rage. The user can hit the rage relieving device in a pound-like motion, and the device responsively outputs a sound. The rage relieving device includes one or more noise devices that output a sound responsive to being hit or receiving some impact. The rage relieving device may be comprised of one or more layers and, in typical implementations, may be a multi-layered construction. The outer shell may be a tougher skin such as lightweight cotton twill, whereas underneath the outer shell may be a foam-like material, microbeads, and/or some injection molding.

A golf club head including a striking face, a periphery portion, and a support arm spaced from the rear surface of the striking face, a first damping element residing between the support arm and the rear surface of the striking face, wherein the first damping element comprises a front surface in contact with the rear surface of the striking face and a rear surface in contact with the support arm, wherein the periphery portion comprises a sole, and a second damping element located between the first damping element and the sole, a front portion of the second damping element in contact with the rear surface of the striking face, a rear surface of the second damping element in contact with the support arm.

A foot inline deflecting swim fin with hinge coupled to a two-leaf-blade fin with embedded channel-hinge with leaves free to rotate from a perpendicular fluid flow configuration upon power stroke to parallel fluid flow configuration upon an upstroke. The hinge-leaf blade will have pivot stops, limiting leaf rotations to accommodate the two stroke swim propulsion, upstroke and power stroke. An embedded unitary elastomeric hinge having integrated channel with channel limiter stops is disclosed.

A ball throwing device including a lower handle portion, a middle lever portion, and a head portion. The middle lever portion may include a plurality of latitudinal bends positioned between the lower handle portion and the head portion. Additionally and/or alternatively, the head portion may include a half-spherical cup configured to releasably retain a ball, the half-spherical cup having a plurality of edge lobes configured to flex over an outside diameter of the ball.

A golf ball dispenser includes: a receptacle configured to hold multiple golf balls; a passageway connecting an outlet of the golf dispenser with the receptacle; a gateway coupled between the passageway and the receptacle to restrict a passage of the multiple golf balls into the passageway, the gateway being selectively moveable to allow a golf ball to pass into the passageway for delivery to a tee area; and a display device embedded in the golf ball dispenser to present at least information regarding the golf ball in flight after the golf ball is hit from the tee area. Further, methods, systems, and apparatus, including medium-encoded computer program products, for use with such golf ball dispensers, can control holding and dispensing of golf balls at a golf facility, e.g., a driving range.

A golf club head having a hollow structure includes a face, a sole, and a crown. The face includes a front surface and a back surface that face away from each other. The front surface is a ball-striking surface. The sole includes an abutment structure. The abutment structure includes a metallic sole fixation member fixed to the sole, an elastic member, and a metallic pin member connected to the metallic sole fixation member through the elastic member.

The nature of the invention enables the same backboard to be used in any of the three standard backboard positions; vertical, sloped, or curved. Furthermore, the design allows for the angle of slope, and the curvature of the board, to be made at the location where the board is mounted. The material used is a paper/resin composite product that is durable, dense, flexible, and not affected by adverse weather conditions. The invention incorporates flex technology allowing the board to flex upon impact from a ball. The same frame can be used to mount the backboard to an existing chain-link fence, concrete wall, brick wall, stud wall, portable platform, or other sturdy structure.

A golf clubhead that is designed with a unique inner and outer structure, using geometry and technology to provide super symmetry, harmony and balance at motion and at rest of golf swings. The triangular form clubhead does not require compensation during the swing thus allowing for greater repetition and simplicity of movement in turn producing performance benefits via consistency. The geometric triangular shape of the clubhead provides an instantly recognizable assistance in proper alignment at the rest position. The body of the clubhead may be hollow and feature inner symmetrical structures to complement the form of the body and to enhance and provide superior weight distribution and balance.