Abstract: An anti-release mechanism of a pin-grabber coupler securing a work tool connected to a work machine is disclosed. The anti-release mechanism comprises an actuator, a wedge, a latch, a guide rod connecting the wedge and the latch, and a bias member on a first guide rod end of the guide rod biasing the latch and the wedge together. The wedge and the latch lock around a pin of the work tool and maintain the wedge against the pin of the work tool during a loss of engagement force of the wedge against the pin.

Abstract: A hydraulic system for depressurizing a work tool auxiliary circuit of a work machine. The system comprises: a power source; a reservoir of hydraulic fluid, a plurality of hydraulic lines, a pressure source, a control valve, a depressurize line connected to at least one of the plurality of hydraulic lines and the reservoir, the depressurize line includes an electromechanical valve for regulating the flow of hydraulic fluid in the depressurize line; a controller and a coupler switch comprising at least two throws and having three positions where one of the three positions actuates the electromechanical valve to depressurize the work tool auxiliary circuit. The hydraulic system can be provided as a kit to existing work machines for depressurizing the work tool hydraulic auxiliary circuit of a work machine.

Abstract: A quick coupler and methods of coupling and decoupling a quick coupler and work tool are disclosed. The quick coupler includes a frame, cylinder, primary blocking member, secondary blocking member, biasing member, and controller. The method of coupling includes activating an AUTOMATIC LOCKING state, automatically locking a second tool pin within a hook, a first tool pin entering a notch, and activating a LOCKED state. The method of decoupling includes activating the AUTOMATIC LOCKING state, resting the work tool on a surface, activating an UNLOCKED state, and separating the quick coupler and work tool. Advantageously, the quick coupler can automatically lock the second tool pin without actuation of the cylinder.

Abstract: A transmitter includes an input, a modulator, and a calibration memory configured to store discrete calibration test points. A compensator is coupled between the input and the modulator and cooperates with the calibration memory to cause the modulator to generate a respective calibration carrier signal for each of the discrete calibration test points during a calibration phase. A detector is coupled to an output of the modulator and is configured to determine respective calibration values of the calibration carrier signals during the calibration phase. A compensator calculator is coupled to an output of the detector, and is configured to generate compensation values for the compensator for use during an operation phase and based on the calibration values of the calibration carrier signals.

Abstract: A transmitter includes an input, a modulator, and a calibration memory configured to store discrete calibration test points. A compensator is coupled between the input and the modulator and cooperates with the calibration memory to cause the modulator to generate a respective calibration carrier signal for each of the discrete calibration test points during a calibration phase. A detector is coupled to an output of the modulator and is configured to determine respective calibration values of the calibration carrier signals during the calibration phase. A compensator calculator is coupled to an output of the detector, and is configured to generate compensation values for the compensator for use during an operation phase and based on the calibration values of the calibration carrier signals.

Abstract: A system adapts power for minimizing the total amount of transmitted power in a wireless communications network. A transmit station transmits a communications signal requesting a response from receiving mobile stations. A plurality of the mobile stations receives the communications signal and each evaluates the signal reception, such as the signal-to-noise ratio or transmitted power. Each mobile station responds by transmitting a communications signal back to the transmit station in a specific time slot as a function of the signal reception to allow the transmit station to adapt its power based on the time slot of the communications signals received from respective mobile stations. This minimizes the total amount of power transmitted by the wireless communications network.

Abstract: A system of downconverting an intermediate frequency (IF) phase or frequency modulated signal to a digital baseband includes an N bit shift register circuit that receives a binary input as a 1-bit input sample data stream of an IF signal. A decimation circuit includes a memory and receives data from the N bit shift register circuit and stores N 1-bit binary samples as address bits and performs decimation, downconversion and filtering by accessing memory values at a predetermined rate.

Abstract: Methods for isolation and purification or recombinant gene products are disclosed. In particular, methods for isolation and purification of extracellular and intracellular viral gene products, including virus-like particles, are disclosed herein.

Abstract: A floor mat for covering a motor vehicle flooring system having a plurality of fibers is disclosed. The floor mat includes a thermoplastic layer having first and second surfaces and a plurality of projections extending from the second surface. Each of the projections includes an elongated body portion and an enlarged tip for engaging the fibers. A method of making such floor mats is also disclosed.

Abstract: Methods of making thermoplastic articles having integral projections extending from a surface thereof. The methods utilize a mold plate having a top side, an underside and a cavity extending from the top side to the underside for forming the integral projection. The methods utilize an air escape passage for allowing escape of air from the cavity in the mold plate during the pressing operation. At least a portion of the molding operation is conducted while the temperature of the entrance to the air escape passage is below the molding temperature of the thermoplastic material being molded.

Abstract: A bi-directional amplifier having two symmetrical and versatile impedance matching circuits with a JFET therebetween, and a method for bi-directional amplification using a JFET. Each junction of the JFET may be a drain or a source depending on the direction of amplification. Each impedance matching circuit provides a low impedance for the junction that is a source and a high impedance for the junction that is a drain. The impedance is varied by adding a first capacitor parallel to a resonating inductor and a second capacitor, which is removed or inserted in series with the load, responsive to the direction of amplification. The frequency of the signal being amplified may be different for each direction.