Abstract: A system including a water container, a connecting line from the top of the water container to the air intake of an internal combustion engine, a blower, and a line connected to receive positive air pressure from the blower and conduct it to a point below the surface of water in the water container.

Abstract: Apparatus and method for providing heat to a hot water storage system in which water from the storage system is circulated through a heat exchanger in the flue of a combustion heat source and circulatory flow is provided by a circulating pump in a secondary circulatory system including a heat exchanger having greater heat transfer capacity than the heat exchanger in the flue so as to dissipate excess heat at a controllable rate.

Abstract: A temperature compensation system using forward biased pn semiconductor junctions as temperature sensing elements to compensate for the rate of heat loss or gain by controlling the temperature of a fluid heat exchange medium. A differential amplifier is driven by changes in the junction voltage drops and controls power to the heating element so as to maintain a controlled relation between the temperature being overcome and the temperature of the heat exchange medium.

Abstract: A DC to DC voltage converter using a transformer in which an amplifier driven by a portion of the primary winding opens and closes the primary current path so as to provide self-oscillation and an auxiliary switching circuit cuts the amplifier off at the appropriate point in the cycle faster than achieved by amplifier saturation so as to improve efficiency.

Abstract: A cover for open-bodied vehicles to cover loads during transportation having a reel carried in an assembly removably securable to the front of an open vehicle body, a rod longer than the width of the vehicle body, a tarpaulin at least as wide and as long as the open body connected at one end to the rod and at the other to the reel, removable hooks securable to the back of the vehicle body for holding the rod with the tarpaulin extended, a crank connected to the reel for reeling the cover and a hand implement having a device mating with said crank for manual operation of the reel and a tool for connection to said rod so as to manually transport the tarpaulin from the reeled condition out over the open body.

Abstract: A plurality of flash units mounted as warning, navigational or signal beacons are driven from a remote energy storage power converter with reduced number and or size of discharge current cables by common use of cables combined with sequential flashing such that the discharge current for only one flash lamp is carried by a cable at a given instant. By very close spacing, the sequential flashes may be made to appear simultaneous to the human eye.

Abstract: A target for acquiring a swept light beam in which four light detectors arranged in a row are connected to operate respective illumination devices and also to a logic network which operates an audible signal only upon activation of all four or exclusively the center two detectors. The target includes a housing which attaches to and is movable upon a grade rod.

Abstract: A golf putter having a sighting guide in the form of an elongated groove on the top of the club head and a plurality of channels on the bottom of the club head having a sloping angle from the face of the club angling downward toward the rear of the club so as to give an upward pressure to the club if it strikes the ground.

Abstract: A headlamp in which the optical unit receives light through a fiberoptic light conductor, the unit being readily manipulable by rotation about a vertical axis and a horizontal axis and by direct up and down vertical movement. A "joystick" projecting from the top of the optical unit provides a handle for manipulation.

Abstract: A metal forming machine for forming wire or metal strip in which the machine has two opposed bed supports extending parallel to each other and each bed support has a plurality of extended bed surfaces for supporting metal forming tools in a variety of arrangements.

Abstract: Adaptors in combination with light sources for distributing light over fiberoptic cables, each adaptor housing a fiberoptic bifurcated segment for receiving light from the source at one end and dividing between two or more separate outputs at the other end. Permanently mountable adaptors, pluggable adaptors, and adaptors with permanently affixed cables are disclosed.

Abstract: An orthogonal mode waveguide junction having a dual mode common arm capable of receiving or transmitting energy simultaneously in two orthogonally related directions of polarization, an E-arm, and an H-arm meeting in a common junction region. Matching structure is included entirely within the junction region. The junction is usable over a great part of the band normally usable with a waveguide designed to the same center frequency.

Abstract: A microwave hybrid junction with two of the four terminal pairs terminated with matched switchable impedances driven by interconnected circuitry such that if one of the impedances is in its high impedance state, the other is always in its low impedance state and vice versa, providing high energy transfer over a wide band with selectable phase inversion of the output. In combination with other hybrid junctions, a wide and flexible variety of input and output conditions can be obtained by switching the switchable impedances.