Abstract: A smoke alarm with high and low pitched tones including a conventional smoke detector adapted to activate upon the detection of smoke associated with fire. A first high tone buzzer is included for emitting a high pitched tone upon activation of the smoke detector. A second low tone buzzer is included for emitting a low pitched tone upon the activation of the smoke detector. The first buzzer and second buzzers are adapted to allow the emitted tone thereof to be adjusted thus affording persons with hearing disabilities warning of the presence of fire.

Abstract: A method of microfinishing a surface of a workpiece in which a shoe is pressed against the surface of the workpiece while the workpiece is rotating. The shoe is vibrated at a high frequency and is made of diamond or similar very hard material. Apparatus for carrying out the method includes a drive for rotating the workpiece, a linear actuator for pressing the shoe against the rotating workpiece, and a vibrator for vibrating the shoe.

Abstract: An electric switch assembly having a switch arm movable from "on" to "off" position and a cover plate through which the switch arm extends. The cover plate has an integral guard providing a stop substantially abutting the switch arm when in one of its "on" and "off" positions and blocking movement of the switch arm to the other position. The cover plate may replace the conventional cover plate or serve as an auxiliary cover plate applied over the conventional cover plate.

Abstract: A control device for bypassing intake air around a closed throttle valve of an operating engine while it is idling. The device has a main flow control valve controlling bypass air flow in the bypass air passageway of the device and movable to closed and open positions by a diaphragm actuated by engine intake vacuum controlled by a pilot valve actuated by a solenoid. The main valve, pilot valve and plunger of the solenoid are all movably received on and supported by a stationary slide rod which preferably extends into the coil of the solenoid and is supported adjacent only one end in a cantilever fashion. The main valve includes a main valve body with piston head movable with a flow clearance in and out of an air passage bore of the air outlet side of the bypass air passageway. An annular main valve seat is located at the open upstream end of the bore through which the piston head moves in its axial travel between fully open and closed positions of the main valve.

Abstract: A vacuum seal assembly that can be used in a plasma etch reactor to seal the chamber interior from the outside environment consists of a protective collar that is injection molded or machined of a high strength, high temperature and corrosion resistant thermoplastic material, the collar has an elastomeric gasket installed therein and is used in combination with a second elastomeric gasket to achieve a fluid-tight seal between two rigid surfaces made of silicon and quartz, respectively.

Abstract: A carrier for shallow downwardly dished flexible aluminum food pans. The carrier is generally channel-shaped, having a bottom wall and side walls extending upwardly from the opposite side edges of the bottom wall. Flanges extend laterally inwardly from the upper edge portions of the side walls and are adapted to engage over the side margins of the pan. The carrier is supported by at least two carrying straps each having its ends secured to the flanges. The carrier is open at both ends so that it may support food pans of varying lengths.

Abstract: A power steering pump fluid/filter system which utilizes a combined cooler, filter and reservoir that is positioned preferably in front of the radiator and which provides the three functions of reservoir, cooler and filter. The reservoir comprises a body of material such as magnesium or aluminum and has integral cooling fins. The body includes two openings in the base which permits ready connection to the two hoses of the power steering pump. The combined cooler, filter and reservoir also includes a cover typically made of magnesium or aluminum and a cap having a twist lug connection to the cover. The cap supports a dipstick for measuring the level of the oil.

Abstract: A system and method for loading cargo as cargo units in an aircraft cargo handling system having a cargo loading bay that opens laterally of the aircraft and at least one cargo stowing bay adjacent to the cargo loading bay longitudinally of the aircraft. Two self-erecting power drive units are disposed in the cargo loading bay such that the associated rollers are oriented to propel cargo units in orthogonal directions. The two power drive units in the loading bay are also disposed adjacent to each other such that, when both are in the erected position, the rollers of each unit simultaneously engage a single overlying cargo unit. The power drive units may be simultaneously placed in the erected position with the motors de-energized, such that orthogonal orientation of the de-energized drive rollers effectively prevents movement of an overlying cargo unit engaged by both rollers, whereby the cargo unit so engaged is prevented from inadvertent movement out of the loading bay.

Abstract: A headed fastener clip having a threaded shank with a T-head embedment molded in a hex nut head for rotatably threading the clip into a support. A trim piece attachment post protrudes oppositely from the shank. A pair of spring arms are cantilevered from the post outer free end and diverge dependently therefrom to free ends spaced closely above the nut head. A catch portion adjacent each arm free end dimensioned to overlaps in use mutually opposed marginal edges of a fastener-receiving opening in the trim piece. The nut head has platforms on the head that underlie and support the opening marginal edge when the trim piece is installed on the clip. The fastener clip is first threaded into the support, the trim piece fastener opening registered with clip head and then the trim piece is pushed toward the support.

Abstract: An aseismatic system for constructions such as buildings, bridges, tanks and like comprising abutment/decoupling means for the deck structure from the piers or for the building from its foundation as well as return means for resisting any relative displacements between the deck structure and the piers or between the building and its foundation, which is based upon the principle to prevent the bridge or the building to be subjected to the seismic effects caused by the deck structure mass by decoupling the construction on the horizontal plane by means of said multi-directional movable abutment means, with nearly null resistance to sliding movements and by means of a connection between the deck structure and its abutment members based upon a swinging device adapt to exert a predetermined action of constant value.

Abstract: A binary multiplication method utilizing a combined table lookup and long multiplication to simplify the multiplication procedure, to improve the computational speed, and to save half of the memory space normally required. The method is executed by first moving the least significant bit (LSB) of the multiplier to another memory device before the start of the computation and then using the shortened multiplier in the multiplication operation since the multiplier is reduced by one bit, the memory space required for the multiplication table is reduced by half. The method does not require the use of a multiplying device and only needs small memory space. The manufacturing cost of a microprocessor can be reduced accordingly.

Abstract: The invention provides a compound having conjugated double bonds in an acyclic structure formed by Schiff base reaction between an unsaturated aldehyde (RCHO) and diaminomaleonitrile (DE). The compound is a monoalkylated DAMN derivative having one unit of diaminomaleonitrile for every unit of alkyl (RC) derived from the unsaturated aldehyde. The invention also provides a polymer having an acyclic structure and containing monomeric units formed by Schiff base reaction between an unsaturated aldehyde and a diaminomaleonitrile.

Abstract: A carburetor for a two or four stroke engine having a diaphragm chamber for supplying fuel to the air intake passage of the engine, and a reservoir for primer fuel. A manually operable pump or bulb draws fuel from the diaphragm chamber into the reservoir. An outlet passage leads from the reservoir to deliver primer fuel to the engine. A normally closed manually operable valve or button is provided for opening the outlet passage. The capacity or the reservoir is varied as a function of ambient temperature by a temperature compensator.

Abstract: A cooking oven and method of cooking vertically arrayed food carrying skewers movably attached and carried in a horizontal endless travel path by conveyor means to encircle a heating element array within a single open cooking oven chamber so as to constantly directly and indirectly expose the food to the heat radiated from the element array throughout the complete travel path within the oven chamber. A plurality of internested drip pans are disposed within the oven chamber vertically beneath the food travel path for collecting juice drippage. The oven chamber superposed beneath a conveyor chamber contains an alternating array of infrared gas burners and reflectors arranged upright in a row. A slot communicating between the conveyor chamber and oven chamber provides for travel of suspended food carrying skewers within the oven chamber and incorporates a gasket seal to retain heat and inhibit transfer of contaminants downwardly to the oven chamber.

Abstract: A device for contactlessly supplying power to a moving body (2) such as a pallet being transported in a predetermined transport passage and carrying a device to be supplied with power while supplying power to the last-mentioned device. An induction wire (14) is laid along the transport passage (1) and a high frequency sine wave current is passed through the induction wire (14). The moving body (2) is provided with a coil (16) in which an electromotive force is produced by the action of the magnetic flux produced by the induction wire (14), a capacitor (31) cooperating with the coil (16) to form a resonance circuit adapted to resonate at the frequency of the current flowing through the induction wire (14), and a power switch circuit connected to the resonance circuit and supply power to the device to be supplied with power.