Abstract: Echo locating apparatus for a vision-impaired person which includes: a sound emitter for emitting a stream of sound bursts of ultrahigh frequency; at least one receive channel having a microphone for receiving echoes of the sound bursts and generating echo signals; an echo profile detector for generating an echo profile signal of each echo signal; a delay circuit for adding a variable delay to the echo profile signal, wherein the variable delay increases with the distance to the reflecting at a diminishing rate of increase. The sound burst emitter is preferably arranged to emit a beam of sound bursts having a given beam angle that can be pointed in any direction.

Abstract: This is a slidable battery holder for a simulated pager having a concealed radio transmitter. A fixed part of the battery holder is affixed to a bracket inside the housing of the simulated pager and provides a guideway which is open at the lower end of the housing. A pair of cantilevered leaf spring contacts are at the upper end of this guideway. The slidable part of the battery holder has a dielectric slide that is slidably received in the guideway, conductors on one face of the slide which engage the cantilevered switch contacts when the slide is pushed in, and battery contacts beyond the opposite face of the slide for engagement by the terminals of a battery. The battery contacts are connected conductively by their bias springs to the conductors on the slide.

Abstract: A board game apparatus for playing the lottery and having other competitive aspects. Each player has a game piece which the players in turn move along the outside and inside tracks of the game board, by rolling a pair of dice. The outside and inside tracks have various playing positions which involve competitive interaction between players, winning and losing play money, and obtaining and losing lottery tickets. Included in the play positions are several "play lottery" positions entitling a player landing thereon to play the lottery using the lottery tickets currently in his or her possession. The player marks six selected numbers on each ticket, then a random number generator is used to randomly select the winning lottery numbers. The player wins money according to the number of matching numbers.

Abstract: Feminine disposable urinating device according to the instant invention has an elongate absorbent layer, an impermeable elongate layer longer than the absorbent layer adhesively attached to one side of the absorbent layer, a partition embedded in the absorbent layer, a flexible tubular conduit having a flange at one end disposed between the partition and the absorbent layer and having the other end of the flexible conduit passing through an opening in the absorbent layer and the impermeable layer to allow urine to be discharged through the conduit, and a hip belt having a front and a rear strap attached to the respective ends of the impermeable layer for holding it in place.

Abstract: A spout for attachment to a can having a raised peripheral rim at the top, and a push-in tab in its top which is pushed in by a lift tab, leaving an off-center opening in the can top. The spout has a tubular plastic body of oblong cross-section with a bottom opening at its inner end and an outwardly-facing groove extending around this opening to receive the edge of the can top part-way around the push-in tab opening in it. A flexible and resilient lip extends down and in from the bottom side of the spout body to engage beneath the top peripheral rim of the can.

Abstract: A conveyor assembly having a first, generally, horizontal, endless belt conveyor and a second, generally horizontal, endless belt conveyor extending perpendicular to the first conveyor and with its trailing end overlapped with the leading end of the first conveyor to carry articles away from the first conveyor. Each conveyor has several laterally spaced belts. Where the conveyors overlap their belts are interleaved to transfer articles properly from the first conveyor onto the second conveyor. The second conveyor has a top piece just below the upper course of travel for its belt with an opening having round-tipped, tapered teeth at the front to prevent the strings or the like on a laundry article being conveyed from getting tangled in the drive roller at the leading end of this conveyor.

Abstract: The vehicle braking system has an arrangement for applying the brakes in an emergency caused by loss of hydraulic fluid by depressing the brake pedal beyond its normal travel. The system also can apply the brakes for parking by shifting the gear shift lever to the park position and depressing the brake pedal. In both cases, the foot pedal operated brakes of the vehicle are operated without any need for separate parking or emergency brakes.

Abstract: For anchoring the lower end of a support post for a guard rail at the edge of a concrete floor or stairway in a building under construction, a helical wire nut is positioned inward from a perimeter board of the form for the floor or stairway. A vertical bolt having its lower end threadedly received in the nut is supported by an angle bracket mounted on the perimeter board of the form.

Abstract: An internal combustion engine, which has a combustion chamber with a coordinated piston where the combustion chamber is divided into a first and second section, and where the piston has an extension which slides into the second chamber section during the later part of the piston's upward movement, and compresses the fuel-air mixture contained in that chamber section to a pressure somewhat higher than the pressure in the first section. The second chamber wall and the piston extension has two air passages, which are coordinated in such a way that during the last part of the compression cycle, the air passages overlap and provide an escape passage for the fuel-air mixture in the second section which is released suddenly into the first combustion chamber section and sets the fuel-air mixture in that section in a swirling motion, which helps to better mix the fuel and the air, and facilitates the ignition process of a lean mixture when used with a suitably adapted, extended electric spark ignition.

Abstract: An ignition system for internal combustion engines employing two coordinated power sources which, together, provide a spark of much increased intensity and with extended duration. The first of the coordinated power sources is generally similar to the conventional ignition system employing an ignition coil with a primary and secondary winding, the secondary winding generating a high voltage impulse of very high voltage and low current value and of short duration. The second power source is a storage capacitor which is connected to a direct current power supply which, through a limiting resistor, charges the capacitor to a voltage which is too low to initiate a spark, but high enough to sustain an arc of a controlled high current value for increased duration, once a preliminary spark has been generated across the spark gap at the moment an energizing current in the primary winding of the ignition coil is interrupted.