Abstract: A device for preventing dock piling or structure piling uplift includes a tubular member concentrically disposed around the piling so as to form an annular space between the tubular member and the piling. A heating element is disposed within the tubular member and connected to a power source. The heating element prevents the water or ground within the annular space from freezing to a point where it adheres to the piling and shifts the same upward in response to changing tides or ground shifts in cold weather.

Abstract: A piling anti-lift system utilizes a heat trace cable secured around a piling and extending above and below the water level of the surrounding water. An annular space is formed between the piling anti-lift system. The heated piling anti-lift system prevents the water in the annular space from freezing and thereby prevents the piling from being subject to uplifting or heaving that results from the rising tide of surrounding frozen waters. In the event of extreme water temperatures and the freezing of the water in the formed annular space, the piling anti-lift system keeps the piling independent of the frozen surrounding water. In this situation, the piling anti-lift system will break free from the frozen water in the annular area and rise with the rising tide waters, thus continuing to keep the piling independent from the rising frozen tide waters.

Abstract: A piling anti-lift system utilizes a heat trace cable secured around a piling and extending above and below the water level of the surrounding water. An annular space is formed between the piling anti-lift system. The heated piling anti-lift system prevents the water in the annular space from freezing and thereby prevents the piling from being subject to uplifting or heaving that results from the rising tide of surrounding frozen waters. In the event of extreme water temperatures and the freezing of the water in the formed annular space, the piling anti-lift system keeps the piling independent of the frozen surrounding water. In this situation, the piling anti-lift system will break free from the frozen water in the annular area and rise with the rising tide waters, thus continuing to keep the piling independent from the rising frozen tide waters.

Abstract: The present invention relates to a device for preventing dock piling and/or structure piling uplift caused by frost heaving or shifting.

Abstract: One embodiment of the present invention is a mode switching method and apparatus for an external, dual chamber cardiac pacemaker having multiple single chamber and dual chamber primary pacing modes and user adjustable atrial and ventricular sensitivities. The dual chamber demand pacing mode, e.ga. the DDD or DDI mode, is in effect as long as the atrial and ventricular pace pulse amplitudes are set by the user within an operative range. The pacing mode is switched to a single chamber demand mode when one of the atrial and ventricular pace pulse energies is set to an inoperative setting which preferably is a no output setting. If the atrial pace pulse amplitude is set to no output, then the mode is switched to a single chamber demand mode with ventricular sensing and pacing, preferably the VVI mode. If the ventricular pace pulse amplitude is set to no output, then the mode is switched to a single chamber mode with atrial sensing and pacing, preferably the AAI mode.