Abstract: The present disclosure provides polymeric composition that includes a reaction product of: polycaprolactone co-polyol that includes a reaction product of hydroxyl-functional organic compound with ?-caprolactone and ?-caprolactone with one alkyl substituent, wherein the one or more hydroxyl-functional organic compound is present in the range of about 5.0 wt % to about 95.0 wt %, the ?-caprolactone is present in the range of about 5.0 wt % to about 95.0 wt %, the ?-caprolactone with one alkyl substituent is present in the range of about 5.0 wt % to about 95.0 wt %, and has an average molecular weight of about 500 g/mol to about 10,000 g/mol; one or more diisocyanate; and optionally diol chain extender, diamine chain extender, or a combination thereof, having a molecular weight of about 60.0 g/mol to about 600.0 g/mol, with an NCO:OH molar ratio of from about 0.9:1 to about 2:1.

Abstract: The present disclosure provides a polycaprolactone co-polyol composition that includes a reaction product of one or more hydroxyl-functional organic compound with ?-caprolactone and one or more ?-caprolactone with more than one alkyl substituent, wherein each of the alkyl substituents is independently selected, the one or more hydroxy-functional organic compound is present in the range of about 5.0 wt % to about 95.0 wt %, the ?-caprolactone is present in the range of about 5.0 wt % to about 95.0 wt %, the one or more ?-caprolactone with more than one alkyl substituent is present in the range of about 5.0 wt % to about 95.0 wt %, and the polycaprolactone co-polyol has an average molecular weight of about 500 g/mol to about 10,000 g/mol. The disclosure further provides methods of making the polycaprolactone co-polyol compositions, compositions including the same, and methods of making and using the same.

Abstract: A transmitter for an inground operation includes an antenna and a sensor section for generating sensor data. An antenna driver selectively drives the antenna to emit a locating signal such that the locating signal carries the sensor data. A processor controls the antenna driver to transmit the locating signal during a normal mode and to enter a sleep state that disables at least the sensor section and the antenna driver such that the locating signal is not transmitted responsive to detecting that the transmitter is inactive. The processor can enter a snooze mode from the normal mode by disabling the antenna driver so that the locating signal is not transmitted, without disabling the sensor section, and the snooze mode requires less power than the normal mode but more power than the sleep state.

Abstract: A transmitter for an inground operation includes an antenna and a sensor section for generating sensor data. An antenna driver selectively drives the antenna to emit a locating signal such that the locating signal carries the sensor data. A processor controls the antenna driver to transmit the locating signal during a normal mode and to enter a sleep state that disables at least the sensor section and the antenna driver such that the locating signal is not transmitted responsive to detecting that the transmitter is inactive. The processor can enter a snooze mode from the normal mode by disabling the antenna driver so that the locating signal is not transmitted, without disabling the sensor section, and the snooze mode requires less power than the normal mode but more power than the sleep state.

Abstract: A transmitter for an inground operation includes an antenna and a sensor section for generating sensor data. An antenna driver selectively drives the antenna to emit a locating signal such that the locating signal carries the sensor data. A processor controls the antenna driver to transmit the locating signal during a normal mode and to enter a sleep state that disables at least the sensor section and the antenna driver such that the locating signal is not transmitted responsive to detecting that the transmitter is inactive. The processor can enter a snooze mode from the normal mode by disabling the antenna driver so that the locating signal is not transmitted, without disabling the sensor section, and the snooze mode requires less power than the normal mode but more power than the sleep state.

Abstract: The present application discloses polyurethane or polyurethane-urea compositions with enhanced low temperature performance that includes a reaction product of: at least one diisocyanate and at least one block copolymer of A-B-A type that has an average number molecular weight of 2500-5000 g/mol, wherein the reaction product is formed in the absence of a plasticizer by reacting the reactants in an NCO:OH molar ratio of 0.9:1-2:1. The block copolymer being the reaction product of (i) a poly(tetrahydrofuran) diol in an amount of 40-70 wt % of the total molecular weight of the block copolymer, wherein the tetrahydrofuran is optionally substituted and (ii) a cyclic lactone and/or cyclic ether in an amount of 30-60 wt % of the total molecular weight of the block copolymer. The present disclosure further discloses the reaction further comprising a diol or a diamine chain extender, and compositions comprising the polyurethane or polyurethane-urea composition of the present disclosure.

Abstract: Compositions and methods are described for polyurethanes with mechanical properties rivalling that of the highest performing commercially available elastomer materials by employing copolymers of a poly(farnesene) diol and ?-caprolactone as the polyol component. Poly(farnesene) diols are produced from biobased monomers and such copolymerization allows incorporation of renewable material in high performance polyurethane materials.

Abstract: A transmitter for an inground operation includes an antenna and a sensor section for generating sensor data. An antenna driver selectively drives the antenna to emit a locating signal such that the locating signal carries the sensor data. A processor controls the antenna driver to transmit the locating signal during a normal mode and to enter a sleep state that disables at least the sensor section and the antenna driver such that the locating signal is not transmitted responsive to detecting that the transmitter is inactive. The processor can enter a snooze mode from the normal mode by disabling the antenna driver so that the locating signal is not transmitted, without disabling the sensor section, and the snooze mode requires less power than the normal mode but more power than the sleep state.

Abstract: A non-invasive temperature measurement system comprises an ultrasound transducer configured to emit an ultrasound stimulus pulse toward a product package. An ultrasound receiver is configured to generate a reflected ultrasound waveform from electrical signals that represent physical characteristics of a plurality of reflected ultrasound pulses from a plurality of surfaces of the product package. A first reflected ultrasound pulse is from a first side of the product package closest to the transducer and a second reflected ultrasound pulse is from a second side of product package farthest from the transducer. A signal processor processes the reflected ultrasound waveform to determine a time lag between the first reflected ultrasound pulse and the second reflected ultrasound pulse. The time lag is then correlated to a temperature of a product in the product package. The ultrasound stimulus pulse does not induce nucleation of ice in a supercooled fluid.

Abstract: A fuel injection system for a gas turbine engine includes a vane in an airflow path within the gas turbine engine, the vane includes an air channel with an outlet in communication with the airflow path; and a fuel nozzle within the vane operable to inject fuel into the air channel to at least partially premix and prevaporize the fuel with a secondary airflow from within the vane in the air channel prior to entry into the airflow path through the outlet. A method of injecting fuel within a gas turbine engine includes at least partially premixing and prevaporizing fuel with a secondary airflow from within a vane in an air channel within the vane, the vane within an airflow path of the gas turbine engine.

Abstract: A fuel injection system for a gas turbine engine includes a vane in an airflow path within the gas turbine engine, the vane includes an air channel with an outlet in communication with the airflow path; and a fuel nozzle within the vane operable to inject fuel into the air channel to at least partial premix and prevaporize the fuel with a secondary airflow from within the vane in the air channel prior to entry into the airflow path through the outlet. A method of injecting fuel within a gas turbine engine includes at least partially premixing and prevaporizing fuel with a secondary airflow from within a vane in an air channel within the vane, the vane within an airflow path of the gas turbine engine.

Abstract: A printer (24) for printing upon a continuous web of print receivable media (18) is provided. The printer includes a print head (28) having a media drive assembly side and a media drive assembly for moving the media across the print head. The media drive assembly is disposed only on the media drive assembly side of the print head. The printer further includes a platen (30) disposed adjacent the print head and a controller (102) coupled to the print head, the media drive assembly, and the platen. The controller controls the printer during continuous printing and single sheet printing. During continuous printing, the media is moved in a downstream direction past the print head. During single sheet printing, the media is moved past the print head in an upstream direction one sheet at a time. Further, the printer may perform single sheet pull printing or single sheet push printing.

Abstract: A vehicle crush detecting device consists of an electrically conducting tube with an electrically conducting rod concentrically positioned within the tube along with insulating means positioned at at least two points between the rod and the tube to insulate the rod from the tube. The electrically conducting tube is deformed during a vehicle crash by a force greater than a predetermined magnitude which causes the tube to contact the rod in response to the crush of a vehicle of a predetermined amount. The crush sensor is mounted in the crush zone of the vehicle and is used in conjunction with automobile passive restraint systems such as airbags.

Abstract: A sensor and bracket assembly designed for arrangement in the crush zone of a motor vehicle, is operative to determine when and if a crash of the vehicle is severe enough to deploy a passive restraint system (i.e., air bag or seat belt tensioner). The sensor is preferably of the crush switch type but may also be electronic of electromechanical. The bracket is designed to lie in the crush zone for a wide spectrum of crashes including those that involve only a portion of the vehicle front end including partial bumper over-rides and under-rides. The bracket may be either a separate part of the desired shape may be incorporated into the design of some part of the vehicle structure such as the radiator supports. The assembly may incorporate a single or multiple brackets and a single or multiple sensors.