Abstract: The invention relates to a method of preparing aqueous emulsions of resins and additives, to provide coating compositions and additives which maintain solvent-like application and performance properties yet have reduced volatile organic content. The compositions and additives contain an organic phase, an aqueous phase, and an emulsifier. The emulsifier is preferably a polyolefin aminoester, a substituted alkanolamine, or a mixture thereof, a polyalkylene glycol ether, or an orange oil emulsifier. The compositions of the invention are particularly useful as coatings and coating additives that are applied to substrates, such as wood and plastics.

Abstract: Aqueous dispersions containing hydrophobic materials that are useful as reduced volatile organic content may be utilized as a coating, a stain, a resin, a polymer, or an additive. Specifically, the aqueous dispersion may contain one or more of a carboxyalkyl cellulose ester, such as carboxymethyl cellulose acetate butyrate, a fluorosurfactant, such as a polyoxetane fluorosurfactant or a fluoroaliphatic polymeric ester based surfactant, a water dispersible resin, and optionally, a C-11 ketone and/or surfactant.

Abstract: Automatic mode determination for an input device is disclosed. Depending on conditions of the input device, the input device can transition from a first mode to a transition mode and/or a second mode.

Abstract: An input device is disclosed that includes keys on a first surface and a second surface of the input device. At least some of the keys are operably coupled to a matrix including a switch for each key therein. When one of the keys is pressed, the corresponding switch is activated to provide a signal indicative thereof.

Abstract: Methods and apparatus for controlling illumination uniformity by altering the size of a slit are disclosed. According to one aspect of the present invention, an apparatus includes a light source, an exposure surface, and an illumination unit. The light source generates a beam that is projected onto the exposure surface. The illumination arrangement includes a first support surface and a first removable plate that is configured to be coupled to the first support surface. A first edge of the first removable plate and a second edge cooperate to at least partially define a slit through which the beam is projected.

Abstract: A method for improving holdout on a coated, cellulosic substrate, such as a man-made fiber board. The process comprises the steps of applying an aqueous carboxymethyl cellulose acetate butyrate size composition to a man-made fiber substrate, forming a sized substrate. The sized substrate is then dried. Next, an aqueous coating composition is applied to form a coated, sized substrate. The coated, sized substrate is then dried. According to the invention, the aqueous carboxymethyl cellulose acetate butyrate size composition used in the process comprises carboxymethyl cellulose acetate butyrate, water, and an organic solvent. The invention also relates to a sized, man-made fiber substrate comprising a man-made fiber substrate and a carboxymethyl cellulose acetate butyrate size. The carboxymethyl cellulose acetate butyrate may be either an internal sizing agent, or an external sizing agent.

Abstract: A method for improving holdout on a coated, cellulosic substrate, such as a man-made fiber board. The process comprises the steps of applying an aqueous carboxymethyl cellulose acetate butyrate size composition to a man-made fiber substrate, forming a sized substrate. The sized substrate is then dried. Next, an aqueous coating composition is applied to form a coated, sized substrate. The coated, sized substrate is then dried. According to the invention, the aqueous carboxymethyl cellulose acetate butyrate size composition used in the process comprises carboxymethyl cellulose acetate butyrate, water, and an organic solvent. The invention also relates to a sized, man-made fiber substrate comprising a man-made fiber substrate and a carboxymethyl cellulose acetate butyrate size. The carboxymethyl cellulose acetate butyrate may be either an internal sizing agent, or an external sizing agent.

Abstract: A freeze protection system for a car wash facility having a plurality of bays and having exposed water lines located in an area that is subjected to freezing temperatures. By using a temperature probe connected via a digital temperature meter to a microprocessor, the system will only operate when the temperature is lower than a pre-set value and will shut off when the temperature is higher than a pre-set value. When activated, a predetermined charge of antifreeze mist will purge the piping in each bay, leaving only a small residual of antifreeze. When a bay is used, the system is reactivated, purging only the bay that has been used. The system is easily adaptable to any number of bays or areas of piping that must be protected.

Abstract: A spectrum analyzer for measuring the frequency spectrum of a pulsed input signal includes a synthesized local oscillator for providing an oscillator signal. The local oscillator is responsive to a digital control input signal to sweep the frequency of the oscillator signal from a start frequency to a stop frequency wherein the values of the start and stop frequencies are determined by the control signal. The oscillator is further responsive to the control signal to stop sweeping the oscillator signal. The oscillator signal is mixed with the pulsed input signal and filtered to determine the peak voltage of a predetermined frequency component of the mixed input signal. A data processor is provided for providing the control signal to the local oscillator. The data processor is adapted to adjust the control signal so that the start frequency of the oscillator is equal to its previous stop frequency minus a predetermined frequency difference.

Abstract: The present invention entails a tree mounted deer stand that is of a lightweight open frame construction. In particular, the deer stand comprises a tree trunk mounting frame and an open base frame structure extending generally normally therefrom. Extending upwardly from a central part of the open base frame is a seat support post having a rotating seat mounted thereon. A circumferential portion of the open base frame structure forms a foot bar that enables a seated hunter to propel and reposition himself or herself by pushing against the foot bar with his or her feet, while leaving the hunter's hands totally free for operating a firearm.

Abstract: Apparatus for continuously treating solids, with at least one liquid includes a first screw conveyor having first agitators positioned along the peripheral margin of each section of the thread of the screw conveyor for agitating the solid pieces being conveyed in the area between adjacent sections of the conveyor, and second agitators positioned along the shaft of the first screw conveyor for mixing the liquid with the solids within the area between adjacent sections of the thread of the first screw conveyor, and a second screw conveyor having agitators positioned along the peripheral margin of each section of the thread of the conveyor for agitating the solids being conveyed thereby, in the area between adjacent sections of the thread of the second screw conveyor, and liquid passages associated with the peripheral margin of each section of the thread of the second screw conveyor for allowing liquid introduced to the second screw conveyor to pass through the sections of the conveyor.

Abstract: A warning device particularly for use in a coverall worn by a person in a controlled environment warns if the person has unfastened the garment. The garment has fasteners such as a zipper for opening and closing the garment. A pair of electrical contacts are mounted in the zipper track for contact by the zipper head as the zipper head moves along the zipper track. The zipper head establishes continuity through the contacts as it is drawn past. This provides a signal to a transmitter mounted to the coveralls. The transmitter provides a radio frequency signal to a receiver located in a monitoring area. The receiver provides a warning upon reception of the signal.

Abstract: A Cockcroft-Walton voltage multiplying circuit constructed for use in a slim hole well logging tool includes a plurality of capacitor packages having a first capacitor package, adapted to receive an input voltage, and a last capacitor package. A plurality of high voltage rectifier packages of which each rectifier package, except for a last rectifier package, are physically as well as electrically interconnected with two capacitor packages. The last rectifier package is connected to the last capacitor package so that all of the capacitor packages and all of the rectifier packages form an inline rigid body. Output terminals are connected to the last rectifier package for providing the high voltage developed by the capacitor packages and the rectifier packages in response to a received input voltage.

Abstract: A substantially vertical drum skinning apparatus includes an improved knife, a cushioned drive and an overriding brake, all for improving a skinning operation. The knife is pivoted near the drum and is spring biased toward the drum to an adjustable stop, so that the knife is relatively rigid in line with the primary skinning force applied thereto. It is free to move slightly through a defined area and against a yieldable bias force for facilitating the clean removal of the skin. The drum is driven through a skin clamp, and a flexible cushioned drive coupling for transmitting force to the drum drive shaft and facilitating clamp engagement, and smooth removal of the skin is included. An improved overriding brake holds the drum positively until the skin is tightly clamped and is easily removable for changing worn brake plates.

Abstract: Fluid in a pipeline or container at a refinery or at any of various petroleum producing operations is bombarded with neutrons, and high energy gamma rays resulting from capture of thermal neutrons are detected. The spectra of the detected gamma rays are then analyzed to determine the concentration of the element chlorine, which gives an indication of the presence and concentration of salt water in the fluid. The concentration of sulfur and the percentage gas in the fluid may be determined simultaneously with the concentration of chlorine.

Abstract: Formation fluid is activated by a neutron source. A cluster of three gamma ray detectors provides count rate data with the count values varying among the three detectors as dictated by the geometry of the cluster and the angle of displacement of the activated fluid between the time of neutron bombardment and that of gamma ray detection. Measurements at different time intervals following the activation of the fluid may also be interpreted in terms of the speed of horizontal fluid flow past the borehole.

Abstract: Means and method for energizing and regulating a neutron generator tube having a target, an ion source and a replenisher includes providing a negative high voltage to the target and monitoring the target current. A constant current from a constant current source is divided into a shunt current and a replenisher current in accordance with the target current. The replenisher current is applied to the replenisher in a neutron generator tube so as to control the neutron output in accordance with the target current.

Abstract: Equipment for the detection of undesired behind casing water flow in a producing well is provided. A well logging sonde having a modular fluid tight structure is disclosed. Basically, three modules which when joined together form a fluid tight assemblage comprise the sonde. A first module houses a 14 MEV neutron generator and a 125 kilovolt high voltage power supply for operating the neutron generator. A second module houses dual spaced gamma ray detectors for detecting characteristic gamma rays from the decay of radioactive nitrogen 16 at two different longitudinal distances from the neutron source. A third module houses control electronics and data transmission circuits for controlling the neutron generation and receiving detected signals from dual gamma ray detectors and for transmitting data to the surface from the sonde.

Abstract: Disclosed is a system for nuclear well logging in which neutron pulse time duration for a high energy neutron generator and the frequency of pulses are selected downhole in the tool by use of a coded signal transmitted by the cable from the earth's surface. Separate channel systems are provided in the downhole tool for desired neutron pulse width and repetition frequency and are operated by a decoder system. Additionally, the accelerator voltage on a high energy neutron generator is controlled by a downhole switching system to selectively obtain different neutron output in response to coded signal transmissions. Moreover, provisions for obtaining different timing pulses to control gates for sampling signals generated in the tool are provided.