Abstract: A method of reducing distortion in a spray formed rapid tool includes the steps of making a model of a desired tool and constructing a ceramic pattern as the inverse of the model. The method also includes the steps of building a thermal model of the desired tool from a solid model of the ceramic pattern and applying thermal boundary conditions to the thermal model based on known conditions. The method also includes the steps of running the thermal model to produce a temperature distribution of the desired tool and determining any temperature deviations in the temperature distribution above a predetermined value. The method further includes thermally spraying a metal material against the ceramic pattern to form the desired tool if there are no temperature deviations in the temperature distribution above the predetermined value.

Abstract: A system for monitoring and controlling an area comprising a controller for controlling system operational functions and responsive to at least one remote-control transmitter. The transmitter transmits system commands to the controller in a code word having a fixed word and a hopping word therein. The fixed and hopping words are scrambled using a format word resident in the transmitter and sent to the controller only during a learn mode.

Abstract: A system for monitoring and controlling an area comprising a controller for controlling system operational functions; at least one remote-control transmitter for transmitting system commands to the controller in a code word having a fixed word and a hopping word therein; the fixed word comprising at least one fixed data bit and the hopping word comprising at least one changing data bit, wherein the hopping word changes its binary value from transmission to transmission of the system commands; and, means for scrambling bits of the fixed word and bits of the hopping word within the code word.

Abstract: A system for monitoring and controlling an area comprising a controller for controlling system operational functions; at least one remote-control transmitter for transmitting system commands to the controller in a code word having a fixed word and a hopping word therein; the fixed word comprising at least one fixed data bit and the hopping word comprising at least one changing data bit, wherein the hopping word changes its binary value from transmission to transmission of the system commands; and, means for scrambling bits of the fixed word and bits of the hopping word within the code word.

Abstract: A memory management unit (MMU) includes a translation lookaside buffer capable of simultaneously servicing three requests supplied to the MMU by an instruction cache and two data caches, respectively. Also, an arbiter selects one of several pending requests from sources of different priorities for immediate processing by the MMU, using a process which avoids undue delay in servicing requests from sources of lower priority.

Abstract: A system for monitoring and controlling an area comprising a controller for controlling system operational functions; at least one remote control transmitter for transmitting at least one system command to said controller in a code word having a fixed word and a hopping word therein; the fixed word having an identification code for selective control of the controller, the identification code programmed therein, and a channel code for issuing high and low security commands to the controller; a hopping algorithm for modifying the hopping code of the transmitter n-times in response to n-times activation of said transmitter and for modifying the hopping word m-times within the controller upon receipt of the code word m-times from said transmitter; and, a bypass mode for bypassing the code hopping algorithm and for controlling system functions in response to the controller receiving the low security command.

Abstract: An apparatus for fastening a pair of handbag handling straps includes a longitudinal first grip member fixed to one handling strap and a longitudinal second grip member fixed to the other handling strap. The first grip member has a first face including a recessed receiving portion which has a curved portion. The second grip member includes a second face which is opposite and complementary to the first face. The second face has an outwardly projecting hood which extends into the recessed receiving portion and is movable in a longitudinal direction of the second face. A resilient member is provided in the second grip member to urge the hook to move in the longitudinal direction to engage with the curved portion when the first and second faces are engaged with each other. An releasing device is provided in the first grip member to release the hook from its engaging position.

Abstract: A handbag has a side wall provided with a top rectangular opening. A rectangular flexible cover strip has a first end connected widthwise to the side wall and two peripheral edges. Each of a pair of zippers connects one of the peripheral edges to the side wall to close the opening. An inverted U-shaped handle member has two parallel portions connected to two sliding tabs of the zippers and a handling portion. A stationary shaft extends between the parallel portions. A tubular member is rotatably sleeved around the stationary shaft. The tubular member has an outer surface to which a second end of the cover strip is attached and which is in rolling contact with the cover strip. A torsional spring is mounted in the tubular member and sleeved around the stationary shaft. The handle member is movable between a closed position, wherein the opening is closed by the cover strip, and an opening position.

Abstract: A dumping trailer and truck for containers has a frame for mounting and keeping firmly a container thereon and an oil pressure cylinder possible to raise the frame inclinedly with its front up so shock-enduring goods such as scrap, grain, etc., can be loaded in a container inclinedly raised up through an opening at the front or unloaded from a container inclinedly raised up through an opening at the rear.

Abstract: An improved height-adjustable crutch is provided in which the central carrier member, in which is telescopingly received an extensible leg member, is provided with laterally extending ribbed members, defining exterior concave surface, which matingly received therein the cylindrical portions of the diametrically-opposed tubes defining the lower extremity of the crutch proper. Each tube is coupled to a respective one of the ribbed members via a rivet, each rivet being independent of the other, so as to not to obstruct the interior, hollow passageway formed by the central carrier member, to allow for the sliding movement of the leg member in the central carrier member.