A splash-suppressing toilet seat cover (10) made of a sheet of paper or other disposable folding material. The sheet is cut and folded so that an annular portion acts as a toilet seat cover (16) to prevent body contact with toilet seat (42). The center-cut portion hangs below the user's buttocks (40) and the rest of the seat cover and above the toilet water's surface so as to act as a splash-suppressing device (26). The splash-suppressing device (26) effectively reduces splashing of toilet water...

The invention discloses a helicopter type vehicle having coaxial counter rotating propellers above the cabin of the vehicle, each propeller being fixed in pitch as opposed to conventional helicopter propellers which vary in pitch during rotation of the propeller. The counter rotating propellers provide lift for lifting the vehicle from the surface, and forward thrust on the vehicle is developed by shifting the center of gravity of the vehicle to tilt the axis of rotation of the propellers with t...

An aircraft having at least one horizontal engine unit and lift rotors disposed symmetrically with respect to the fuselage. Each of the rotor blades of the lift rotors includes a rotating drum for producing a lifting effect in an air current according to the Magnus effect. The drums are rotated by means of turbines driven by a jet of gas which is simultaneously utilized to produce the rotation of the lift rotors.

In an air vehicle intended for gliding there are provided two wing members and a tail member connected to a fuselage member and controllable respectively by the arms and legs of the pilot. The wing members are provided with spring arrangements constituted by respective cantilever arm members and an interconnecting tensile cord connected at its ends to the wing members and passing through swiveling eyelets at the ends of the arms. As the wing members are moved from a central position in either th...

A lavatory complex for an aircraft. The lavatory complex includes a male lavatory facility and a female lavatory facility. The male lavatory facility includes stall units and may include urinals. The female lavatory facility includes stall units. Each stall unit suitably includes a single commode. The male and female lavatory facilities include at least one sink separated from the stall units by stall unit doors. The lavatory complex may include sinks that are not located within either the male ...

A man-powered ornithopter-sailplane, which has one or two pair of flapping wings and a hang-glider wing wherein substantially novel femoral and humeral muscular propulsion engines with the aid of which the body members connected thereto form integrated moving-flying and controlling-guiding mechanisms. Femoral arms are fixed to the torso base from which the movements for the wings flapping with respect to axles inclined to a horizontal direction are transmitted through the intermediate links of a...

A method of effecting increased performance of diagnostic enzyme reaction systems which includes contacting at least one reagent of an enzyme-diagnostic kit during use of the reagent in conjuction with the kit with a noble gas, mixture of noble gases or gas mixtures containing at least one noble gas.

A decorative bow is disclosed which comprises at least one sheet of material that is gathered around an insert and fastened together in a gathered configuration with a tie. A bow chip may be attached to the bow. The bow chip provides a stable backing on which information may be printed. The bow chip may include a removable pull-off strip exposing adhesive enabling the end user to affix the bow to a desired object.

A structured software exception-handling mechanism and method provides an improved paradigm for managing program flow control after error detection without requiring compiler modifications. Selected code is wrapped in one or more exception handling constructs which can be nested. Exceptions are raised and handled in accordance with specified handlers or by a default handler outside the scope of specified exception code wrappers.

Apparatus for controlling the output power of a laser diode the beam of which is directed in a selected direction toward a target so as to enable a missile or the like to be directed along the beam toward the target. The apparatus includes a circuit which supplies a variable amount of power to the diode, and a circuit which is responsive to the radiation emitted by the diode, and the latter circuit generates a signal which is proportional to the magnitude of the emitted radiation. A control circ...