Abstract: A bubble-producing device includes a container for receiving a quantity of a bubble-forming liquid to a desired liquid level in the container; a bubble-forming loop moveable within the container to a lower position below the desired liquid level so as to be submerged in the liquid when received within the container, or to an upper position emerged from the liquid; and a controlled gas supply system for controlling the introduction of a gas (e.g. air) into the container effective: (a) first to move the bubble-forming loop from its lower position submerged in the bubble-forming liquid, to its upper position emerged from the bubble-forming liquid; and then (b) to discharge gas through the bubble-forming loop and thereby to produce a bubble therein. Embodiments are described wherein the bubbles are produced at a distance to serve as targets for a water gun, and wherein bubbles of different colors are produced.

Abstract: A multi-action toy water gun includes a housing including a barrel having a discharge chamber and a nozzle through which water is to be discharged; a handle grippable by one hand of a user for carrying the water gun and for aiming the barrel; a water reservoir; a manually-driven pump having a handpiece grippable by the other hand and reciprocatable along an axis parallel to that of the barrel; and a water discharge control presettable by the user to produce a large quantity discharge of water for drenching purposes, a rapid sequence of small-quantity discharges, simulating rapid shots of an automatic gun or a single small-quantity discharge simulating a single shot of a gun.

Abstract: A projectile launching device, comprising a housing having a barrel at one end, an air pulsator within the housing having an inlet and an outlet, a pump communicating with the inlet of the air pulsator for pumping air into the air pulsator to pressurize the air therein, a projectile chamber within the barrel for receiving a projectile to be launched, and a valve in the outlet of the air pulsator which is normally closed to permit the pump to pressurize the air therein to a desired level, the valve being openable to produce an air pulse discharge therefrom into the projectile chamber, and thereby launch the projectile from the barrel at a velocity according to the force applied to the projectile by the air pulse discharge.

Abstract: An electrical device includes a housing having an electrical drive motor and a drive magnet mechanically coupled thereto; a sealing end wall sealing the motor and magnet within the housing; and a load device including a driven magnet magnetically coupled to the drive magnet through the sealing end wall. The driven magnet is included within a separate magnetic coupling unit attachable to and detachable from one end of the housing and mechanically coupled to the load device. The invention is particularly useful in electrical shavers for driving cutter holders. It may be embodied as an adapter for use with existing electrical shavers or other electrical devices driving loads.

Abstract: A collapsible dispensing tube for containing and dispensing a flowable material, the tube including a fold-retainer strip of a stiff foldable material having a width equal to a small fraction of the length of the tube, and a length greater than the width of the tube such that when the fold-retainer strip is applied transversely across the closed bottom of the tube and the tube is folded upon itself starting from its closed bottom, the opposite ends of the strip project laterally outwardly of the opposite sides of the tube and serve as foldable tabs to retain the tube in its folded condition. The fold-retainer strip is detachably carried on the outer face of the tube to enable the strip: (a) to normally serve as a decorative strip for the tube when filled with the flowable material; and (b) thereafter, to serve as a fold-retainer strip conveniently detachable by a user whenever desired for application across the closed bottom of the tube to retain the tube in a folded condition.

Abstract: A multi-action toy water gun includes a housing including a gun barrel having a discharge chamber and a nozzle through which water is to be discharged; a handle grippable by one hand of a user for carrying the water gun and for aiming the barrel towards a target; a water reservoir for holding a quantity of water; a manually-driven pump having a pumping chamber and a handpiece grippable by the other hand of the user and reciprocatable along an axis parallel to that of the barrel for producing a discharge of water through the nozzle via the pumping and discharge chambers; and a water discharge control presettable by the user to different positions enabling the user to produce, during one preset position thereof, a large quantity blast discharge of water from the barrel towards the target for drenching purposes, and during another preset position thereof, a rapid sequence of small-quantity discharges of water for simulating rapid shots of an automatic gun.

Abstract: A projectile launching device, comprising a housing having a barrel at one end, an air pulsator within the housing having an inlet and an outlet, a pump communicating with the inlet of the air pulsator for pumping air into the air pulsator to pressurize the air therein, a projectile chamber within the barrel for receiving a projectile to be launched, and a valve in the outlet of the air pulsator which is normally closed to permit the pump to pressurize the air therein to a desired level, the valve being openable to produce an air pulse discharge therefrom into the projectile chamber, and thereby launch the projectile from the barrel at a velocity according to the force applied to the projectile by the air pulse discharge.

Abstract: A bubble-producing device includes a container for receiving a quantity of a bubble-forming liquid to a desired liquid level in the container; a bubble-forming loop moveable within the container to a lower position below the desired liquid level so as to be submerged in the liquid when received within the container, or to an upper position emerged from the liquid; and a controlled gas supply system for controlling the introduction of a gas (e.g. air) into the container effective: (a) first to move the bubble-forming loop from its lower position submerged in the bubble-forming liquid, to its upper position emerged from the bubble-forming liquid; and then (b) to discharge gas through the bubble-forming loop and thereby to produce a bubble therein. Embodiments are described wherein the bubbles are produced at a distance to serve as targets for a water gun, and wherein bubbles of different colors are produced.

Abstract: An attachment particularly useful for adapting an electrical shaver for wet shaving, includes a cap having a scraping edge located to engage a user's skin forwardly of the cutter head, when the cap is attached to the shaver, to erect hairs and to tauten the skin before engaged by the cutter head. The attachment may also include a dispenser for dispensing a shaving lotion during shaving. Also described are an auxiliary cleaning device which may be used for cleaning or drying a shaver head, and a kit including some or all of the foregoing.

Abstract: An electrical shaver particularly useful for wet shaving includes a manually-grippable housing, and a cutter head removably attachable thereto along the outer edge of the cutter head. The cutter head includes at least one relatively sharp scraper edge located between the outer side of at least one cutter unit and the outer edge of the cutter head, but does not extend to the inner side of the cutter unit facing an adjacent cutter unit, such that the scraper edge is pressable into the skin, forwardly of the respective cutter unit, to erect hairs in the skin and to tauten the skin in advance of the respective cutter unit, with minimal irritation of the skin, as the cutter head is moved across the skin in the direction from the outer side towards the inner side of the respective cutter unit.

Abstract: A continuous strip of individually severable plastic bag includes a flattened, hollow, tubular structure of a thin plastic material formed with a plurality of longitudinally-spaced transverse bond lines to define closed bottoms of plastic bags when individually severed from the continuous strip, with a transverse severance line on one side of each transverse bond line to permit severance of an individual plastic bag, and with a pair of finger tabs adjacent each transverse severance line to facilitate opening a plastic bag when severed from the continuous strip. Several preferred embodiments are described wherein the finger tabs are integrally formed with the continuous strip, and wherein they are formed as separate elements bonded to the continuous strip.

Abstract: An attachment particularly useful for adapting an electrical shaver for wet shaving, includes a cap having a sharp scraping edge located to engage a user's skin forwardly of the cutter head, when the cap is attached to the shaver, to erect hairs and to taughten the skin before engaged by the cutter head. The attachment may also include a dispenser for dispensing a shaving lotion during shaving. Also described are an auxiliary cleaning device which may be used for cleaning or drying a shaver head, and a kit including some or all of the foregoing.

Abstract: An electrical shaver particularly useful for wet shaving includes a manually-grippable housing, and a cutter head removably attachable thereto along the outer edge of the cutter head. The cutter head includes at least one relatively sharp scraper edge located between the outer side of at least one cutter unit and the outer edge of the cutter head, but does not extend to the inner side of the cutter unit facing an adjacent cutter unit, such that the scraper edge is pressable into the skin, forwardly of the respective cutter unit, to erect hairs in the skin and to tauten the skin in advance of the respective cutter unit, with minimal irritation of the skin, as the cutter head is moved across the skin in the direction from the outer side towards the inner side of the respective cutter unit.

Abstract: A shaver for shaving hair from skin includes a cutter head having at least one cutter unit and at least one relatively sharp scraper edge located on the cutter head so as to be pressable into the skin forwardly of the cutter unit to erect hairs in the skin and to tauten the skin in advance of the cutter unit as the cutter head is moved across the skin.

Abstract: An electrical shaver includes a sealing end wall blocking the passage of liquid from the cutter head (preferably a plurality of cutter heads) to the electrical motor within the housing, and a magnetic coupling coupling the cutter head to the electrical motor by a magnetic field which penetrates the sealing end wall, thereby enabling the shaver also to be used for a wet shave as well as for a dry shave. In one described embodiment, the cutter head includes a rotary cutter member, a static cutter member enclosing the rotary cutter member, and a scraper member having a thin, hard, scraper edge at least partially enclosing the static cutter member and spaced radially from its outer edge so as to erect the hairs, and to taughten the skin as the static cutter member is moved over the skin while pressed against it to cut the hairs. Further described is an auxiliary device for cleaning and/or drying the shaver head after use in a wet shave or dry shave.

Abstract: A water discharge device, particularly a toy water gun, includes a portable housing containing a reservoir for a quantity of water; a discharge control device for controlling the discharge of water from the housing; and a hand-operated pump for manually pumping water from the reservoir through the discharge control. The discharge control device includes an expansible chamber having an inlet connected to the pump, an outlet through which the water is discharged, and a pressure-responsive valve controlling the outlet. The valve is normally closed to permit expansion of the reservoir and a build-up of water pressure during the pumping of water by the pump into the reservoir, but automatically opens when a predetermined pressure is reached in the chamber to discharge water through the outlet.

Abstract: An electrical hair remover device particularly a rotary shaver includes an air impeller driven by the motor for discharging air through openings in the shaver head such as to produce an air cushion reducing friction between the head and the surface over which it is moved.

Abstract: A pocket-calculator type electronic game is described for playing Tic-Tack-Toe. The game includes a keyboard having a 3-by-3 matrix of keys each of which may be depressed once to input an "O", and twice to input an "X"; a matrix display for displaying the inputted O's and X's; a mode selector for selectively operating the device according to either a Continuous-Display Mode (wherein the inputted indications are continuously displayed), or a Suppressed-Display Mode (wherein the inputted indications are displayed only when a complete line of one of the indications has been inputted); and a "Tilt" indicator energized whenever a player depresses a key which had previously been depressed in the same game. The latter two features introduce a memory factor in playing the game.

Abstract: An electrical version of the game Tick-Tack-Toe comprises a stylus-actuated switching device including a printed circuit board carrying one group of electrically-conductive deposits, and an overlying flexible plastic sheet formed with a conductive layer facing the conductive deposits of the printed circuit board but separated therefrom by a wax coating carried either on the printed circuit board or on the flexible sheet. Both the sheet and the board are divided into a 3 .times. 3 matrix of 9 boxes, the electrical conductive deposits of the printed circuit board being arranged so that if an 0 mark is traced by the stylus in any box, a first electrical switch is closed by causing the wax to part and one deposit on the board to engage the conductive layer on the flexible sheet, and if an X mark is traced by the stylus in any box, a second electrical switch is closed by causing the wax to part and another deposit on the board to engage the conductive layer on the flexible sheet.