Abstract: A portable hand-held device for producing output values, such as body mass index calculations, has a hand-holdable housing that includes a memory unit storing a pre-defined non-linear algorithm. A processing unit located in the housing applies the algorithm to input values selected by an input means on the housing, and produces output values via an output means on the housing. The range of selectable input values is pre-defined and is assignable to variables for applying the algorithm. Advertising indicia may be imprinted on the housing, and the housing may be attached to external devices. Optionally, a timing unit, such as a countdown timer, may be included.

Abstract: The invention is a recharging unit having an efficiently designed recharging base and at least one rechargeable implement, which also serve as an advertising means. The recharging base has two electrical prongs on the rear surface and at least one orifice on at least one outer surface of the base into which the rechargeable implement can be inserted for recharging. Each of the orifice lies completely within the surface where it is, and is configured to retain securely a rechargeable implement even in an inverted position. The recharging base is shaped and the electrical prongs are positioned and oriented such that when the recharging base is inserted into one socket of a common two socket electrical outlet, it does not block the second socket, thereby permitting both sockets to be accessible for concurrent use.

Abstract: An hand held implement which includes an integral preprogrammed electronic calculator. The implement is preset to perform one or more calculations which utilize known scientific formulas and mathematical relationships and which rely upon specific variables for which values are input by the user through the use of the various input command control devices and may be reused for further serial calculations. By preprogramming the implement with the related formulas for a given field of technology, the user may perform one or even a series of related and useful calculations without the need for any additional calculators, charts, tables or other printed materials. The surfaces on the implement may also be used for the imprinting of graphical or advertising material for the purpose of advertising or promotion.

Abstract: The invention is a recharger device having an efficiently designed base charging unit and at least one rechargeable handheld implement, which also serves as an advertising means. The base unit has two electrical prongs on the rear surface and at least one orifice on at least one outer surface of the base unit, each of which lies completely within the surface where it lies. The base unit is shaped and the electrical prongs are positioned and oriented such that when the recharging base is inserted into one socket of a common two socket electrical outlet, the second socket is not blocked by the base unit, thereby permitting both sockets to be fully utilized.