Abstract: A filter cage for impeding access to a cable filter within an enclosure having an enclosure wall and a plurality of bosses extending outwardly therefrom and containing a cable filter and associated cables, the filter cage including a cage wall, a pair of side walls and a pair of end walls depending from the cage wall, cutouts in the end walls for receiving the cables, apertures in the cage wall for receiving screws for fastening the filter cage to the bosses, openings in the cage wall for permitting viewing of the filter within the cage, the end walls and side walls being spaced so as to abut the bosses on the enclosure wall to thereby locate the apertures in the cage wall in proper alignment with the bosses for receiving screws which pass through the apertures and into the bosses.

Abstract: A display system for an article, which display system includes an elongate support member with structure for fixedly attaching the elongate support member to a base in a display position. The elongate support member has an entry end which can be directed through an aperture in an article to be displayed so as to allow the article to be displayed to be placed in a display state and slide guidingly lengthwise along the elongate support member. Structure is provided on at least one of the elongate support member and a base on which the elongate support member is fixedly attached in the display position for confining movement of an article to be displayed guidingly along the length of the elongate support member in one direction.

Abstract: A method and system for regulating power delivered to specific appliances or loads which represent but a proportion of the power consumed by different commercial or residential users and in which each appliance or load has variable demands for power consumption, the method and system of the present invention being characterized by measuring the natural run time or average demand of an electrical appliance over a selected real time interval and reducing the run time or average demand of the appliance by an amount directly related to the run-time measurement or average demand measurement of each appliance during periods of peak demand.

Abstract: New covers for access openings or hatches, for example, gauge hatches, are preferably opened and closed on a "hands-free" basis, so that a human operator can carry gauging/sampling or other equipment in his/her hands and still gain access to the container to be monitored. In one embodiment, the hatch cover comprises a housing including a wall surface defining an opening, a first pivot element and a spaced apart second pivot element; a cover member coupled to the first pivot element and adapted to be pivotably movable about the first pivot element relative to the housing, the cover member being sized and adapted to cover the opening when placed in a closed position and to not cover the opening when placed in an opened position; a pin secured to the cover member; and a movable latch element coupled to the second pivot element and adapted to be pivotably movable about the second pivot element relative to the housing.

Abstract: Liquid and air outlet nozzle assemblies are capable of mounting on a vehicle adjacent the headlights and are positioned such that liquid and air jets from the nozzles intersect prior to engaging the headlight to form a spray mixture that cleans the headlight. The nozzle assemblies are associated with a control valve capable of connection in a pressurized air system on the vehicle and in the pressurized washer system for the windshield wipers and also capable of automatically directing liquid from the vehicle washer system and pressurized air on the vehicle to the liquid and air nozzles to form a headlight cleaning function upon manual activation of the pressurized windshield washer system of the vehicle. An embodiment of the nozzle assembly has an extension and retraction piston for extending nozzle openings toward the headlight in operation condition of the assembly.

Abstract: The ladder system is located adjacent the front face of a storage rack. The ladder is carried by a cantilever supported carriage assembly having a pair of pivotally mounted frames. The ladder is connected to one frame and may move longitudinally along the front face of the storage rack. The ladder and its frame may also be moved laterally in an arc up to 90.degree. in a direction extending perpendicular to the front face of the storage rack. The carriage assembly includes a horizontal ladder support arm on the first frame upon which the ladder is mounted. A user can quickly and easily position the ladder at any position along the storage rack for accessing items stored on the shelves. This ladder system is particularly useful in crowded warehouse-type retail outlets which are now in popular use across the country.

Abstract: A self-centering spring hanger assembly has a housing with a top wall, a bottom wall and a central vertical wall therebetween. A coil spring adapted to receive a hanger rod is mounted on the bottom wall. A spring cap is located on the top of the spring. The spring cap has a plurality of concentric depressions adapted to receive a fastener.

Abstract: A flow control device including first and second flow control members, first and second actuators, and first and second transmission devices wherein both flow control members are adapted for rotation about a common axis. The first flow control member has a wall portion which defines an aperture aligned with the common axis. The second transmission device includes a shaft member which passes through the aperture for rotation therein. A first end of the shaft member is coupled to the second actuator and a second end of the shaft member is coupled to the second flow control member. The first transmission device includes a first rotary body coupled to the first flow control member and rotatable about the common axis and a second rotary body coupled to the first actuator and rotatable about a second axis offset from the common axis. The first and second rotary bodies are engagable by a mechanism such that rotation of the first rotary body causes rotation of the second rotary body.

Abstract: An interlock for first and second tandemly aligned circuit breaker switches which respectively have first and second external operating handles thereon oriented such that the operating handles are disposed away from each other when the switches are OFF and towards each other when the switches are ON. The interlock includes a linkage arrangement formed with at least one slot and having one end connected to the first operating handle and another end connected to the second operating handle such that pushing the first operating handle from an OFF to an ON position pushes the second operating handle from an ON to an OFF position.

Abstract: A pulse-width modulated (PWM) circuit applies voltage to a load with high fidelity. The circuit includes switches connected in series with inductors, the inductors being magnetically coupled to other inductors connected to the gates of the switches. The arrangement of inductors and the magnetic coupling causes the turn-on of one switch to assist in the turn-off of the other switch. A pair of diodes connected across some of the inductors assures that the magnetically coupled inductors do not assist the switches to turn on. The result is a circuit which effectively eliminates the problem of "shoot through" current, without providing a "dead time" in the switching scheme, and thus without substantial power losses. The circuit can therefore be used in audio amplification, and in other applications requiring high fidelity.

Abstract: Apparatus for a fully automated magnesium melt system. Raw magnesium ingots are moved through and controllably heated in a preheater chamber before they are introduced into a melt cell. A probe monitors the metal level and a control unit causes ingot charging as determined by a process level set point or temperature overshoot. There are two zones of heating in the melt cell with each zone supplied by its own 3 phase zero cross fired silicon controlled rectifier and firing board which is gated by a gating signal. This controls how much the SCR's are allowed to conduct. The amount of error between the metal bath set point and the actual metal bath temperature automatically determines how much of the 4-20 mA gating signal is required to maintain the set metal bath temperature. Liquid magnesium is transferred from the melt cell to a die cast machine by a siphon transfer tube which has two sets of electrical heating elements.

Abstract: A surge pressure control valve for blocking surge pressures that may occur in a fluid line. This surge pressure control valve contains a fluid biased plunger therein that retracts upon the application of fluid pressure. However, the rate of retraction of this plunger is limited to the rate at which the fluid bias is released by flowing through a relief opening controlled by a needle valve. As this plunger is allowed to retract, it uncovers a passageway connecting the inlet port to the outlet port, thereby permitting fluid to flow through the valve. By such construction, this plunger does not react immediately to the application of pressure, instead, the plunger only gradually retracts (thereby only gradually uncovering the passageway) after fluid is first forced through the relief opening. Thus, this plunger serves the purpose of dampening the effect of any surge pressure that may arise in the line.

Abstract: A continuously variable transmission utilizes a variable eccentric assembly arranged about a central transmission axis. A plurality of input and output vanes are operably interconnected to an orbiter and are sequentially engaged by input and output ratchets that circumscribe them. Positive driving connections are provided between the ratchets and vanes by outer toothed pawls yieldably mounted at the outer ends of the respective vanes. A secondary multiplier transmission can be arranged coaxially with the vanes, which are rotatably supported about the central shaft of the transmission.

Abstract: A control mechanism for a liquid treatment system including a first tank having an inlet and an outlet and a second tank having an inlet and an outlet. The control mechanism includes an inlet passage for receiving liquid to be treated and an outlet passage for dispensing treated liquid. A first valve is provided having a first chamber in fluid communication with the inlet passage and a second chamber in fluid communication with the outlet passage. The first valve is rotatable between a first position and a second position. A second valve is provided in fluid communication with the second chamber of the first valve. The second valve is adapted to selectively open and close a fluid path between the second chamber of the first valve and the first tank and to selectively open and close a fluid path between the second chamber of the first valve and the second tank.

Abstract: A masa dough sheeting process is disclosed which eliminates the use of at least one stripper wire or doctor blade wherein the dough is worked between pinch rolls rotating at selected, infinitely varying speed ratios enabling controlled differential adhesion characteristics between the dough material being sheeted and the surfaces of the rolls. Compensation against compressive forces created during product cutting which tend to shrink cut product size is realized through readily variable cutter roll speeds with respect to the speeds of the front roll upon which the cutting occurs.

Abstract: The invention relates to a condiment dispensing system for dispensing condiment and the like which includes a gas operated pump for moving condiments from a condiment source to a delivery nozzle through a pinch valve that operates to close and open the delivery flow path in response to and absence of gas pressure. A swipe valve to clean the delivery nozzle is also provided.

Abstract: In a preferred ball-valve construction, a valve body has spaced inlet and outlet ports on an axis of flow that is controlled by an interposed ball; the ball is rotatable about a body-fixed axis which intersects the axis of flow at the geometric center of the ball. In the closed condition of the valve, an annular valve-seat member associated with one of the ports has circumferentially sealed contact with the ball. The annular valve-seat member is guided for axial displaceability into and out of its engageability with the ball, and actuation of the valve utilized coordination of valve-seat displacement with ball rotation such that valve-seat engagement with the ball is only for the closed condition of the valve, and such that, valve-opening rotation of the ball can occur only while the annular valve-seat member is in axial-clearance relation with the ball. Various embodiments are disclosed.

Abstract: A bulkhead mounting plate for EMI filter units formed along three of its edges into alternating fingers. The fingers can grip the inside and outside surfaced of an edge port or a notch in a box. The plate is shaped by a right angle bend of a fourth edge and perforated with precision mounting holes appropriate to any specified application. Fingers on the mounting plate are dimpled to concentrate spring pressure between them and the box to improve the efficiency of electrical contact of the filter to be mounted on the plate.

Abstract: Process and apparatus for preparing a snack food product by baking and without the use of cooking oil, begins with preparation of potatoes, carrots, bananas, etc, into slices which are surface de-watered before exposure to a high intensity heat source including infra red at about 1400 F. to blanch the product and halt enzyme action before exposure to hot, dry air impingement until reduced in moisture to about 10 to 35%, while maintained in a mono layer. Then the slices are aggregated into a pack and dried in hot dry air until the moisture content has been reduced to about 0.5 to 2%.The apparatus includes an insulated housing with a product conveyor extending therethrough. A combination of overhead infra-red burners and underneath open flame burners are positioned to create a high energy heat zone along one length of the belt. Air impingement scatter slots are positioned above and below a subsequent length of the belt and a superimposed hold down belt restrains the products from scattering.

Abstract: A device for checking the weights of individual capsules in a stream of capsules by passing the stream of capsules past a capacitance sensor which measures the capacitance of each capsule as representative of the capsule weight, and passing the stream of capsules past a velocity sensor which measures the velocity of each capsule as representative of the capsule weight. The measured capacitance and measured velocity values are each compared against preset ranges of values, and a capsule is mechanically deflected from the moving stream if the comparison shows either measured value to be outside the respective preset range of values.