Abstract: The present invention comprises a guard for racks that are used on cars and the like which comprise one or more elongated members comprised of a dense protective material such as styrofoam or foam rubber of a suitable thickness to ensure that the object to be placed on the rack will be protected. Each of the substantially elongated members comprises an upper outer surface with a recessed substantially concave inner surface capable of receiving and covering the horizontal bars of the guard. Attached to each end of the elongated member are attachment means for fastening the elongated member to the rack and which are also used to fasten one or more objects to the rack. Alternatively, objects may be attached to the guard through specifically configured straps for items such as skis, surfboards and the like.

Abstract: The invention comprises a new and improved garment having pant legs which are shaped at the inseam so as to conform to the natural anatomical shape of the thigh. The front and back of the pant leg assume difference curvatures such that when they are sewn to a seamless crotch piece such as the one disclosed in U.S. Pat. No. 4,371,989, the garment will not rise up or bind on the wearer when the wearer sits, bends, walks or performs any other physical motion.

Abstract: The present invention comprises holder to be used by the blind or other visually impaired persons to locate items on a night table. The holder comprises a power inlet to the device, and a power outlet such as an AC socket into which may be plugged a reading lamp, bedside radio, etc. The device of the invention further comprises an internal appliance such as a small lamp or radio which is mounted so as to facilitate the location and retrieval of an item placed in the holder in the dark. A normally closed switch is located between the power inlet and the power outlet so that the AC current from the inlet is normally available at the power outlet for lighting a reading lamp or the like. When an item is placed in the holder, the device plugged into the outlet is turned off. Also, when the item is placed in the holder, the switch closes in response thereto to supply power to the internal appliance which stays on as the item remains in the holder to facilitate retrieval of it in a dark room.

Abstract: The present invention comprises an eyeglass holder which may have a suitable ornamental appearance, a power inlet to the device, and a power outlet such as an AC socket into which may be plugged a reading lamp, bedside radio, etc. The device of the invention further comprises a night light such as a small lamp which is mounted so as to facilitate the location and retrieval of the eyeglasses in the dark. A normally closed switch is located between the power inlet and the power outlet so that the AC current from the inlet is normally available at the power outlet for lighting a reading lamp or the like. When a pair of eyeglasses is placed in the holder, the device plugged into the outlet is turned off. Also, when the eyeglasses are placed in the holder, the switch closes in response thereto to supply power to the night lamp which remains lit so long as the eyeglasses remain in the holder to facilitate retrieval of the glasses in a dark room.

Abstract: A quadriphase modulator, designed in a planar metal geometry for operation in the microwave frequency range, uses Schottky barrier diodes as the switching elements, and is capable of operating at bit data rates up to 15% of the carrier frequency. The microwave circuit employs a microstrip power splitter that couples the carrier signal to two biphase modulators while providing DC isolation. Each biphase modulator includes coplanar-to-slot transmission line transition, with a pair of diodes controlling the phase shift across the transition. The diodes are connected in reverse polarity and the bias for switching the diodes is controlled by the modulating signal. The slot lines from the two biphase modulators are coupled through a microstrip transition and through a Lange 90 degree hybrid to the output load.

Abstract: A charge coupled device (CCD) frequency divider circuit for dividing the frequency of an input signal comprises a CCD having main, drain, and feedback channels. Input signal charge is injected during each cycle of the input signal into a potential well under a storage electrode that retains a predetermined quantity of charge. Overflow from the storage electrode is detected by a sensing electrode that is normally maintained in a transfer state, causing the sensing electrode to switch to a barrier state. This allows the predetermined quantity of charge to advance to an output while the overflow is dumped out by the drain channel. However, when no overflow is present, the sensing electrode causes the input charge to be transferred into the feedback channel which circulates it to the storage electrode to combine with another input charge received by the storage electrode during a subsequent cycle of the input signal.

Abstract: This invention is an improved ranging system including an improved digital single shot circuit that has a resettable shift register therein so that a signal representative of the last target return occurring at any point of a predetermined range interval will be provided to the timing counter of the system. The digital single shot circuit includes a flip flop responsive to the first trigger pulse during the predetermined range interval, resetting the shift register so that, when the output pulse from the shift register representing the last target return is applied to the timing counter, it will terminate a fixed number of clock edges after the last trigger pulse determined by the number of stages of the shift register. The fixed delay in terminating the output of the shift register may represent the preset time of the readout counter.

Abstract: Brazing alloy on detailed aluminum parts is formed in an exact pattern of the joints to be brazed. An aluminum sheet having brazing alloy coated on one or both sides (e.g., a brazing sheet) is plated with electroless nickel and electrolytic copper which are etched by use of a photoresist mask into a mask which outlines the pattern. The brazing alloy coating is then chemically milled to form the exact pattern of the joints. Parts are then assembled and dip brazed to form the completed brazed unit.

Abstract: A thick lens or prism with at least one spherical shaped surface is utilized in conjunction with a glass fiber delay line to create a sensitivity, boresight and range accuracy test unit for a laser rangefinder, which test unit may be built into the laser rangefinder. This test unit performs laser rangefinder sensitivity and boresight tests in a small volume with relatively simple components having a minimum of weight making its incorporation into most laser rangefinders very practical.

Abstract: A method for the removal of particulate matter as well as noxious gases and vapors from a gas stream. This is accomplished by means of charged droplets having a size between 60 and 250 microns and preferably between 80 and 120 microns. The droplets are generated by first ejecting a stable jet of liquid such as water. The liquid jet is broken up into charged droplets by applying an electric potential between the jet and the collecting walls of the scrubber. Since most gases are electronegative the droplets are preferably charged positively by the resultant electrostatic field. However, in case some of the particles are already charged it is preferred to generate charged droplets having a polarity which is the same as that of the particles. The method works well with particles having a diameter of approximately 0.01 micron or more and the droplets are preferably moved at an angle to the direction of movement of the gas stream to increase the relative velocity between the droplets and the particles.