Abstract: A driver type, hollow-bodied golf club head in which multiple parameters are controlled to be within defined ranges of values to enhance the performance and playability of the club. The parameters which are controlled include the club head's maximum dimensions, the position of the center-of-gravity, the size of striking face, and the position of the shaft attachment point.

Abstract: A golf club and a manufacturing method therefor which can prevent a copper or copper alloy material for a head from corroding. The invention also aims at preventing electrification corrosion when combining this material with another material such as aluminum alloy. A head body 31 forming a peripheral portion of a head 1 is made of beryllium copper. A face member 32 pressed into a through-hole 33 of the head body 31 is made of aluminum alloy. A surface of the head body 31 is formed with a lower plating such as nickel plating, onto which is formed an upper plating such as chrome plating. By this plating, not only the corrosion of the head body 31 itself but also that of the face member 32 due to galvano-corrosion can be prevented.

Abstract: A golf swing training device for guiding the shoulder turn of a golfer from the address position to the apex of the back swing, through the forward swing until contact with a ball, and follow-through. In a preferred embodiment it comprises: an elongated rigid the shaft (10). A plurality of first fastening sides of a fastening pair (20) are affixed to one side of the shaft (10). A plurality of second fastening sides of said fastening pair (30) are affixed to the front of a shirt like garment (40) along a horizontal axis running through the mid-sections of the garment's (40) shoulder areas and under the clavicle area. The shaft (10) is then connected to the garment (40) by the engagement of the first sides of the fastening pairs (20) to the second sides of the fastening pairs (30). A flat based marker (50) is located and affixed to a front area of each of the shoulder areas of the garment (40) above the attached shaft (10).

Abstract: A fire fighting trainer is provided for use in training firefighters comprising a series of lower profile burner tray assemblies which are fully self-contained for holding water which shields the tray structure from the high temperatures generated during the training exercise. A distribution system is provided to distribute and diffuse the propane above the water with a pilot igniting system for igniting the propane. The tray assemblies are covered by a metal netting which further shields them from the elevated temperatures and provides a walking surface over which personnel can advance during a training exercise. The low profile enhances the realism of the fuel spill fire and minimizes any hazards resulting from tripping on the surfaces.

Abstract: A grip control glove for teaching proper pressure for gripping sports equipment includes a number of semi-sharp, tack-like units attached to the glove at pressure points where the user typically tends to grip the equipment too tightly. Each tack-like unit includes a disc-shaped head portion and a semi-sharp protrusion which extends perpendicularly from the center of one side of the head portion. The tips of the semi-sharp protrusions, which extend toward the user's hand, are sufficiently sharp to cause discomfort when pressed firmly against the palm or fingers, but not sharp enough to break the skin or cause injury. When the equipment is gripped too tightly, the semi-sharp protrusions press into the fingers or the hand of the user, causing a degree of discomfort. This discomfort serves as direct biofeedback to the user, indicating that his or her grip is too tight and reminding the user to relax his or her grip.

Abstract: In a live-action theater, a catapult launches a prop which achieves free flight in the theater. The catapult and prop are concealed until the moment of launch, whereupon the prop suddenly hurtles into an audience's view, and lands in front of the audience. The audience views the launch from a seating area or from a vehicle moved through the theater. The prop is for example, a seaplane or a jetski. The prop is then retrieved from the landing area using a crane or other lifter and returned to the catapult for a subsequent launch. By launching a prop in a theater with a catapult, the audience sees true free flight, rather than an illusion of flight. The audience sees no supports or other devices which can diminish the effect. A catapult allows a prop to be launched directly at the audience at a realistic or full speed, creating a more dramatic effect than if a prop is moved about some distant stage area using cables or a boom.

Abstract: An animated character having a face unit provided in a support structure upper body portion so as to resemble a singing tree. The face unit includes a face member and mechanism which consists of two pivotable eye elements and a lower lip element each separately driven by an electric motor through a gear and linkage system. A control circuit unit and a speaker are provided in the support structure, so that the eyes and mouth elements of the face unit are moved by the face mechanism in synchronism with singing and/or speaking sounds produced by the control circuit system and speaker mounted in the support structure.