Abstract: An educational keyboard with removable keys, wherein musical tone generation for a given key is in response to correct placement of the key in its corresponding key slot, is disclosed. Incorrect placement results in a sour tone. Lights are also used to indicate correct and incorrect placement of keys. A computer interface for the keyboard allows a student to use pre-programmed interactive lessons tailored to the student's age and ability. Methods of teaching music theory and harmony with the keyboard utilize the student's left brain and right brain capabilities.

Abstract: This disclosure is directed to a liner and a surgical collar wherein the liner is formed of a blank of soft, pliable absorbent material shaped to conform to the interior surface of the surgical collar and having opposed reversible folded pockets formed along the opposed ends of the blank for receiving the edges of the surgical collar and a reversible foldable edge flange for overlying the upper peripheral portion of the surgical collar so as to render the collar more comfortable to the wearer. The liner may be formed as a unitary member, or in several parts, depending upon the specific construction of the surgical collar.

Abstract: A multi-purpose exercise apparatus for safely performing weight lifting exercises (such as free weights) that eliminates the need for an assistant comprising a bench that is supported on the floor at both ends, one end of which is pivotally anchored to an elongated U-shaped weight supporting frame which encompasses and surrounds the supported bench. The U-shaped frame further includes a vertical support that is attached to a positionable weight lifting handle bar. Free weights are mounted on each side of the movable end of the U-shaped frame. Because of the length of the longitudinal side members of the U-shaped frame extending from one end of the exercise bench to the opposite end, the path of the handle bars is essentially linear. The apparatus provides for maximum efficiency and safety in bench pressing, squatting and other free weight exercises.

Abstract: An exercise, diagnostic and training device and method for football players, sports players and the general public, comprising a generally elliptically-shaped peripheral member, a first support member, a second support member, a gripping member, and a plurality of body engagement ribs, all generally cylindrical in cross-section and having protective cushioning. The peripheral member encloses and is fixedly secured to the ends of the first and second support members, the axes of which are generally perpendicular. The gripping member comprises a set of handles and a separator plate on each side of the shield which are supported by the first support member. The plurality of generally horizontal body engagement ribs are supported by the second support member and provide cushioning and protection against injury for opposing players on each side of the shield.

Abstract: Methods and apparatus are disclosed for insuring the use of the correct weight stack pin in setting the desired weight on a weight loading stack of a weight exercise machine in an installation including different types of machines. The weight stack pin of each type of machine is marked with a particular color specific to that type of machine, a sign plate is affixed to each individual machine bearing indicia including the color code specific to that type of machine and an outline of the shape of the weight stack pin used in that type of machine, and a chart is prominently displayed bearing instructions for correct weight stack pin selection and including a list of all the color and pin-shape indicia from all of the different types of weight exercise machines in an exercise facility.

Abstract: An elbow and forearm rehabilitation device to be grasped by a hand of a user includes a frame having first and second side members. Each side member includes first and second ends. A hand grip is interconnected to the first ends of the side members for receiving the hand of the user between the first and second side members. The first and second side members include a bend disposed between the first and second ends, such that the first and second side members disposed between the bend and the second ends lie in a plane substantially parallel to the plane of the user's arm when the back of the hand is rotated, upon full rotation of the wrist, toward the user's elbow.