Abstract: A transmitter in a member (e.g. bat) transmits signals when a switch on the bat is pressed. A pop-up apparatus receives the signals. A member in the apparatus prevents an element (e.g. ball) from being popped upwardly in a first positioning of the member and provides for the element pop-up in a second positioning of the member. Normally disposed in the first position, the member is operable to the second position by the received signals. The apparatus includes a housing and a bin pivotally coupled to the housing to hold the element. The bin provides for a substantially vertical element pop-up in a first pivotal position and for an element pop-up with a horizontal component in a second position. In the vertical pop-up, a player hits the ball with the bat. In the other pop-up, the player catches the ball.

Abstract: A propulsion member (e.g. a bat) has an external switch and an internally disposed transistor which transmits signals when the switch is manually closed. A receiver in a tee mechanism receives the signals and causes a tee in the mechanism to move upwardly from a rest position to an operative position. As the tee moves upwardly to the operative position, an element (e.g. a wiffle ball) moves on a ramp to a supportive position at the top of the tee. When the tee is in the operative position, a player holding the propulsion member swings the member against the ball. This is helpful to young children (e.g. eight (8) years old or younger) in learning how to hit a baseball.

Abstract: A hollow rotatable member preferably made from a clear plastic material and a hollow cover are attached to each other in a spinning top. A ring is disposed within the top on the cover at a position of the top's substantially maximum diameter to provide stability and inertia to the top during the top's rotation, thereby significantly increasing the top's spinning time. A cap fits tightly on the upper portion of the rotatable member. A strap having teeth defining a rack gear extends through an aperture in the cap and engages a pinion gear in the aperture. When the strap is pulled from the aperture, the pinion gear rotates and causes the top to spin. Because of the tight fit between the top and the cap, the top can be thrown outwardly and downwardly toward a support surface and can be spinning as it reaches the support surface.

Abstract: A hollow handle portion and a hollow barrel portion communicate with each other in a hollow housing. A first detent in the barrel portion has a first relationship for retaining a chalk in the barrel portion and a second relationship for releasing the chalk from the barrel portion. The detent is operable to the first and second relationships by a control member externally disposed on the barrel portion. A rotatable reel and a second detent are disposed in the handle portion. The second detent has a first relationship for preventing the reel from rotating and a second relationship for providing for the reel rotation. The second detent is operable to the first and second relationships by a second control member externally disposed on the handle portion. A string wound on the reel extends at a free end through an opening in the handle portion to a position external of the handle portion.

Abstract: Closure members are provided at the opposite ends of a hollow casing. Shock absorbers are confined within the casing by the closure members. A weight is disposed within the casing between the shock absorbers. The weight may be defined by a plurality of granules confined within an enclosure in the casing between the shock absorbers. Alternatively, the weight may be defined by a solid member. The casing may be in the shape of a baseball bat. Alternatively, a tube may be disposed within the casing and may be closed by the end caps. The shock absorbers and the weight may be confined within the tube by the end caps. The arrangement described above may also be provided in different types of balls. For example, end caps may be provided at the opposite ends of a hollow main body shaped to define the central portion of a football. Shock absorbers may be disposed with the hollow main body at positions interior to the end caps. A weight may be disposed within the hollow main body between the shock absorbers.

Abstract: A member (e.g. baseball bat) includes a switch manually operable to obtain the transmission of signals by a transmitter in the member to an apparatus for propelling an element (e.g. ball) toward an individual holding the member. The apparatus includes a receiver for receiving the transmitted signals and includes a housing with a hollow passage. A ramp supported on the housing holds a plurality of the elements for sequential movement into the passage. The element in the passage is supported on one of the fingers of a rotary detainer. The detainer is normally prevented from rotating by a release mechanism coupled to the detainer. The detainer is rotated by the weight of the element when the release mechanism is decoupled from the detainer upon the reception of the transmitted signals. The element then moves downwardly in the passage to a propulsion mechanism which may comprise a pair of rollers for gripping the opposite ends of the element.

Abstract: A pogo stick includes (a) a housing, (b) a member movable within the housing, (c) a spring retained at opposite ends by the housing and the member and compressible upon the actuation of the member to a support surface (e.g. ground) and expansible upon the movement of the member from the support surface, (d) a handle on the housing near the housing top and (e) a foot rest on the housing near the housing bottom. A switch normally in an open relationship is operative (a) to a closed relationship upon the actuation of the member to the support surface and (b) to an open relationship upon a movement of the member from the support surface. The switch includes a resilient electrically conductive element and a stationary electrically conductive element normally defining an open relationship. The resilient member is movable in response to the member actuation to the support surface to engage the stationary element and to provide a switch operation in the closed relationship.

Abstract: A skateboard including a platform, at least one flange member extending from the bottom of the platform, the flange member including an opening extending into the flange member and also including a recessed portion, a wheel support member for supporting a shaft member and wheel members at opposite ends of the shaft member, the wheel support member including a post extending outwardly and also including a recessed portion and with the post of the wheel support member received within the opening of the flange member for mounting the wheel support member on the flange member and with the recessed portions of the flange member and the wheel support member facing each other when the wheel support member is mounted on the flange member, and shock absorbing material located within the recessed portions for providing shock absorption between the wheel support member and the flange member.