Abstract: A simple, low-cost circuit is disclosed that provides the requisite triple redundancy for a spark protection circuit for a battery-operated device having an on-board battery charger that is intended for use in hazardous atmospheres. The circuit complies with the IEC standard for intrinsically safe products.

Abstract: A simple, low-cost circuit is disclosed that provides the requisite triple redundancy for a spark protection circuit for a battery-operated device having an on-board battery charger that is intended for use in hazardous atmospheres. The circuit complies with the IEC standard for intrinsically safe products.

Abstract: A simple, low-cost circuit is disclosed that provides the requisite triple redundancy for a spark protection circuit for a battery-operated device having an on-board battery charger that is intended for use in hazardous atmospheres. The circuit complies with the IEC standard for intrinsically safe products.

Abstract: A simple, low-cost circuit is disclosed that provides the requisite triple redundancy for a spark protection circuit for a battery-operated device having an on-board battery charger that is intended for use in hazardous atmospheres. The circuit complies with the IEC standard for intrinsically safe products.

Abstract: An ambidextrous actuating mechanism configured as a mechanical interlock may be adapted to a battery operated light emitting device for mounting forward of the trigger guard of a firearm. The mechanism includes first and second mechanically coupled pivotable switch actuators disposed under and on either side of the barrel of the firearm. Operation of either one of the first and second actuator levers locks the other actuator from pivoting, thereby eliminating ambiguity and overridden operations in the control of the light emitting device. The operating motion of both actuators, either up for ON or down for MOMENTARY, is the same for both actuators. An alternate embodiment provides functionally equivalent electronically interlocked actuators.

Abstract: A fall protection tool for use in blocking an opening in a doorframe. The tool includes a frame assembly including a pair of lateral posts spaced from each other and extending substantially parallel with each other, and at least one transverse post extending between the pair of lateral posts. The tool also includes a hook member coupled to each lateral post, wherein the hook member is configured to couple to a portion of the doorframe such that the frame assembly is hangable from the doorframe.

Abstract: Re-crosslinkable preformed particle gels and compositions containing, e.g., those further comprising at least one re-crosslinking agent are provided, as well as the use thereof, e.g., in methods, processes, and techniques related to enhanced oil recovery, e.g., conformance control, wherein the use of said re-crosslinkable preformed particle gels when re-crosslinked may improve hydrocarbon recovery, e.g., by improving sweep efficiency. These re-crosslinkable preformed particle gels and compositions containing are also useful in water and gas shutoff, fluid loss control, zone abandonment, water and gas coning, squeeze and recompletion, chemical liner completions and lost circulation during drilling operations and plugging during drilling and drilling completion.

Abstract: A fall protection tool for use in blocking an opening in a doorframe. The tool includes a frame assembly including a pair of lateral posts spaced from each other and extending substantially parallel with each other, and at least one transverse post extending between the pair of lateral posts. The tool also includes a hook member coupled to each lateral post, wherein the hook member is configured to couple to a portion of the doorframe such that the frame assembly is hangable from the doorframe.

Abstract: An ambidextrous actuating mechanism configured as a mechanical interlock may be adapted to a battery operated light emitting device for mounting forward of the trigger guard of a firearm. The mechanism includes first and second mechanically coupled pivotable switch actuators disposed under and on either side of the barrel of the firearm. Operation of either one of the first and second actuator levers locks the other actuator from pivoting, thereby eliminating ambiguity and overridden operations in the control of the light emitting device. The operating motion of both actuators, either up for ON or down for MOMENTARY, is the same for both actuators. An alternate embodiment provides functionally equivalent electronically interlocked actuators.

Abstract: A brightness control circuit for a DC-powered LED light uses a PWM generator. The LED brightness is a function of the duty cycle of a drive signal to a transistor connected in series with the LED. In several embodiments the duty cycle signal generated by the PWM is controlled by at least one momentary SPST switch, or, in one alternative, by first and second SPST switches operable in a make-before-break sequence in a voltage divider circuit.

Abstract: A brightness control circuit for a DC-powered LED light uses a PWM generator. The LED brightness is a function of the duty cycle of a drive signal to a transistor connected in series with the LED. In several embodiments the duty cycle signal generated by the PWM is controlled by at least one momentary SPST switch, or, in one alternative, by first and second SPST switches operable in a make-before-break sequence in a voltage divider circuit.

Abstract: The present invention relates to a method and system for removing an impurity from a feed gas stream. Various embodiments include, for example, using a rotating packed bed, a pressure reducing device such as a turbine and/or control valve, a regenerator, and novel internal seal designs and liquid distributors. Advantageously, at least a portion of any energy produced is recycled for use in the process or elsewhere.

Abstract: The present invention relates to a method and system for removing an impurity from a feed gas stream. Various embodiments include, for example, using a rotating packed bed, a pressure reducing device such as a turbine and/or control valve, a regenerator, and novel internal seal designs and liquid distributors. Advantageously, at least a portion of any energy produced is recycled for use in the process or elsewhere.

Abstract: A terminal for audio-video communications comprising an IP enabled video phone and a video processor component coupled to the IP enabled video phone and including a module for correcting images from the video camera to render a camera-facing image for transmission to remote viewer. The correcting images may include use of calibrated images for a particular user and may replace background images with neutral images.

Abstract: A terminal for audio-video communications comprising an IP enabled video phone and a video processor component coupled to the IP enabled video phone and including a module for correcting images from the video camera to render a camera-facing image for transmission to remote viewer. The correcting images may include use of calibrated images for a particular user and may replace background images with neutral images.

Abstract: A method and apparatus for maintaining a visual appearance of at least one window displayed on a screen after a change in a resolution of the screen includes a first step of receiving a display change notice indicative that the resolution of the screen is to be changed from a current screen resolution to a new screen resolution. A second step of determining the current screen resolution. A third step of determining the new screen resolution. A fourth step of generating at least one scaling factor based on the current screen resolution and the new screen resolution. A fifth step of transmitting a windows resize to a window drawing module for triggering drawing the window on the screen using the new visual parameters when the resolution changes from the current screen resolution to the new screen resolution.

Abstract: A method and apparatus for managing a memory for storing potentially configurable entries in a list, associated with a resource coupled to a central resource manager, is provided. A number of potentially configurable entries in the list are determined. A block of memory for storing data associated with each potentially configurable entry is allocated from the memory. If the block of memory is insufficient for storing the data, at least one extended block of memory is allocated from the memory, for storing the data.

Abstract: A method and apparatus for maintaining a visual appearance of at least one window displayed on a screen after a change in a resolution of the screen includes a first step of receiving a display change notice indicative that the resolution of the screen is to be changed from a current screen resolution to a new screen resolution. A second step of determining the current screen resolution. A third step of determining the new screen resolution. A fourth step of generating at least one scaling factor based on the current screen resolution and the new screen resolution. A fifth step of transmitting a windows resize to a window drawing module for triggering drawing the window on the screen using the new visual parameters when the resolution changes from the current screen resolution to the new screen resolution.