Abstract: An apparatus is provided for determining the position of a shaft that is rotatably displaceable about a longitudinal axis. The apparatus includes a source of light energy, a light detecting device arranged adjacent the shaft. A rotatably displaceable disk having a triangular opening in the disk is mounted between the source of light energy and the light detecting device. A position-determining circuit connected to the light detecting device measures the magnitude of light that the light detecting device reads from the light emanating from the disk opening and applies the output to a position-determining scheme.

Abstract: Apparatus for providing EMI/RFI shielding to cables connected between electrical circuitry contained within an enclosure and the exterior environment. A fixed supporting flange is secured to the enclosure adjacent to a gap in the enclosure. An adjustable compression flange is secured to the enclosure adjacent to the gap. Cables extending from inside of the enclosure to the exterior environment pass through the gap. A compliant, resilient gasket is positioned over the gap, between the supporting flange and the compression flange. The compression flange bearing against the cables compresses the cables into the gasket.

Abstract: The method of downloading application information from a host device to a field device over a network providing communication and power to the field device, the method including the steps of stopping the normal data processing of a connected control device, halting operation of device components not critical to the download operation, reducing the operating frequency of a microprocessor included in the field device and transmitting a new device application over the network.

Abstract: A peelable and resealable closure arrangement for a container body and lid that ensures integrity of the seal, including a tubular container body including a peripheral rim extending radially outward from the body wall and a lid including a flat central panel including a membrane layer peelable from the rim. The membrane including a layer of film compatible for heat sealing to an upper surface of the container body rim.

Abstract: A process control system including a method of suppressing overshoot of a process variable beyond the process value setpoint by predicting the overshoot by observing a waveform associated with the process variable, observing the waveform associated with the process variable, without regard to time scale or to amplitude scale, taking corrective action to reduce or eliminate said overshoot by utilizing a fuzzy logic module with a proportional integral derivative control to take corrective action of the process variable.

Abstract: An integrated circuit read-only-memory with low power requirements, including a plurality of information storage memory cells and a decoder. The circuit operated in response to a selected address input and a control input to the decoder to direct and generate output of information stored in a selected one of the memory cells.

Abstract: A closure arrangement for a one-piece, foldable, paperboard container with tray and hinged cover, the tray side wall panels have, foldably joined to their front edges, corner flaps adapted to lie against the inner surface of the tray front wall, and each of the corner flaps are scored to allow a portion of the flap to be deflected, as its related side wall panel is canted inwardly, to facilitate insertion of lock tabs projecting upwardly and downwardly from the corner flaps into related receiving openings of the tray top panel and bottom wall panel.

Abstract: A meter body for use in a pressure transmitter in a continuous pressurized transmission system. The meter body is cylindrical in form with a bottom end (including a flexible diaphragm) adapted to engage a flexible gasket to form a so-called "sanitary-seal" connection. The top end is configured to be connected to a sensor capsule.

Abstract: A light source for use in examining leak detection sites in heating, ventilating, and air conditioning systems that utilize a fluorescence-producing dye in the refrigerant to determine the presence of leaks. The light source combines a dichroic reflector with a lamp and interference filter to provide a narrowed emission of wavelength of light emitted from the light source.

Abstract: A coin box monitoring circuit for use in pay telephones, providing coin detection, coin volume totalization, and full coin box signaling to the telephone central office. An included coin chute assembly has three channels that cause nickels, dimes, and quarters to pass through specific locations within each channel. Light sources and light detectors detect the passage of coins. A microprocessor is utilized to control the light sources, monitor the detectors, and volumetrically count the coins passing through the coin chute. On reaching a full condition, a microprocessor then controls a relay to signal that the predetermined coin box level has been reached.

Abstract: A multi-purpose tool, for use with a barbecue grill, having a hook at one end thereof and a relatively thin curved and tapered blade at the other end thereof which tool can be used for many different functions such as lifting and repositioning a grill cover and/or grate, adjusting the position of an air vent, holding and positioning a charcoal briquet, cleaning the bars of the grill grate by scraping, and moving ashes toward an opening in the kettle portion of the grill.

Abstract: A coin chute trigger assembly having separate coin paths for nickels, dimes, and quarters. Intentionally, the dime coin path is made at least twice as wide as the thickness of a dime in order to prevent hangups and jams. A trigger included in each coin path is operated in response to deposit of the appropriate coin through the coin chute or path and causes operation of an included pair of switching contacts.

Abstract: A leak detecting dye for use in heating, ventilating, air conditioning, or refrigeration systems employing dyes such as naphthalimide, perylene, coumarin, anthracene, phenanthracene, and thioxanthane. The dye is adsorbed onto a non-absorbent carrier which is then adapted for inclusion into various components of the system such as a filter drier, or a desiccant container which may be inserted into appropriate locations within the system.

Abstract: A coin chute trigger assembly having separate coin paths for nickels, dimes, and quarters. A microswitch is positioned adjacent to each coin path. A trigger included in each coin path is operated in response to deposit of the appropriate coin through the coin chute to cause operation of the included or adjacent microswitch.

Abstract: A light source for use in examining leak detection sites in heating, ventilating, and air conditioning systems that utilize a fluorescence-producing dye in the refrigerant to determine the presence of leaks. The light source combines a faceted reflector with a lamp and interference filter to provide a narrowed emission of wavelength of light emitted from the light source.

Abstract: A wireless caller identification system employing master and remote units. Microcontrollers at both master and remote units facilitate secure communications between units, providing the identity of the source of calls received at the master unit over a connected telephone line from a telephone central office. Radio frequency (RF) or infrared (IR) modes of communication may be used.

Abstract: A control circuit for a stove, cooktop or oven utilizing at least one electrical radiant heating element. The circuit effectively compares a controlled voltage and internally generated saw-tooth voltage wave to control the percent power to the radiant element. Also included is a slow start feature to minimize power surge when first energizing the element.

Abstract: A measuring and control circuit for measuring the voltage of an alternating current source and controlling the operations of an associated load. A memory associated with the microprocessor is programmed to provide information representative of voltage levels associated with various modes of operation associated with the load. Tested levels are compared with programmed voltage levels to determine needed load control.

Abstract: The present invention rleates to the effective leak detection of refrigerants by the addition of dyes from the general chemical class of naphthalimide fluorescent dyes in a refrigeration system where said refrigeration system employs alone, or in combination, a refrigerant in a hermetic system such as, but not limited to, chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFC), hydrofluorocarbons (HFC) and any hydrogen, halogenated or ether derivatives of the methane, hydrogen, halogenated, ether or cyclic derivatives of either ethane, propane, butane, pentane, mixtures of HCFC, HFC, hydrocarbons, carbon dioxide and ammonia.Leakage is determined by inspection of the sealed system using a lamp having an emission wavelength from 300 to 480 nanometers providing an indication of any system leakage.

Abstract: Refrigerant leakage in heating, ventilating and air conditioning systems employing hydrofluorocarbon refrigerants is determined by adding a mixture .[.of.]. .Iadd.including .Iaddend.predetermined amounts of a napthalamide optical brightner .[.with an appropriate lubricant.]. to the system. Inspection of the system under ultraviolet light provides an indication of any leakage occuring in the system of liquid and/or gas.