Abstract: A device, system and method for heating fluid (air) in a flue to create a draw prior to combusting a fuel in a combustion device. The device, system and method includes a housing that may be integrated about the flue. The housing may include a heat exchanger that itself may include a heating source that may be in thermal communication with the flue and a temperature differentiation driver. The heat exchanger may operate to transfer heat energy from the heating source to a fluid constrained to a path created by the flue. The result is a pressure differential created within the flue to help draw the fluid out of the combustion device. The heat exchanger may be configured such that it may cause heat transfer to the heavier, more dense fluid contained within the ventilation system prior to combusting fuel in a combustion device, thereby causing the fluid to be relatively less dense thus creating a draw.

Abstract: Disclosed is a vacuum pump exhaust pipe of a chemical vapor deposition apparatus, wherein two ports of the vacuum pump exhaust pipe are respectively connected to a vacuum pump outlet and a scrubber, and anti-sticking inner pipes are installed inside the exhaust pipe and closely contacted with inner walls of the exhaust pipe. The present invention also relates to a vacuum pump of the chemical vapor deposition apparatus. Blockage hardly occurs in the vacuum pump exhaust pipe of the chemical vapor deposition apparatus and the relevant vacuum pump according to the present invention to solve problems of the easily found blockage in the exhaust pipe, wasting the manpower and the time for clearing the exhaust pipe and the effect to the uptime of the chemical vapor deposition apparatus in the prior arts.

Abstract: An apparatus for preventing the accumulation of snow, ice, frost, hail or the like from obstructing the flow of primary air, air or the exhaust into or out of a high-efficiency sealed combustion condensing furnace is provided. The apparatus is also suitable to prevent leaves, animals or other debris from becoming trapped within the air flow pipes of the furnace. The apparatus has a screen which may be electrically connected to a heating device. The apparatus may further be attached to a thermostat to automatically turn the heating device on or off at preset temperatures. The apparatus may be incorporated into new pipes or may be attached onto existing pipes.

Abstract: A flare stack that preferably comprises a burner assembly, an exhaust stack, an housing, and a fuel line. The burner assembly burns a fuel to generate thermal energy and combustion byproducts. The exhaust stack is cooperatively associated with the burner assembly to direct the thermal energy and combustion byproducts away from the burner assembly. The housing at least partially defines a fluid-receiving chamber in thermal communication with the exhaust stack. The fluid-receiving chamber has a heat-transfer fluid disposed therein. The fuel line is in fluid communication with the burner assembly to deliver fuel to the burner assembly. At least a portion of the fuel line is in thermal communication with at least one of the exhaust stack, housing, or heat-transfer fluid to permit fuel in the fuel line to absorb thermal energy before reaching the burner assembly.

Abstract: A flare stack that preferably comprises a burner assembly, an exhaust stack, an housing, and a fuel line. The burner assembly burns a fuel to generate thermal energy and combustion byproducts. The exhaust stack is cooperatively associated with the burner assembly to direct the thermal energy and combustion byproducts away from the burner assembly. The housing at least partially defines a fluid-receiving chamber in thermal communication with the exhaust stack. The fluid-receiving chamber has a heat-transfer fluid disposed therein. The fuel line is in fluid communication with the burner assembly to deliver fuel to the burner assembly. At least a portion of the fuel line is in thermal communication with at least one of the exhaust stack, housing, or heat-transfer fluid to permit fuel in the fuel line to absorb thermal energy before reaching the burner assembly.

Abstract: A heated vent cap assembly is provided which can be coupled to a pipe originating from a plumbing system within a building. A heating element is wound around an inner cylinder which is wrapped in a conductive foil and enveloped by a larger diameter outer cylinder which is lined with a reflective foil defining a void there between. The cylinders are secured at an upper end by an end cap and at a lower end by a lower end cap and a tether is tautly secured within the inner cylinder by a bridge in an opening of the end cap and a lower disk engaged with the lower end of the inner cylinder to support ice blocks formed therein. The heating cable generates heat, which is reflected by the reflective foil and absorbed by the conductive foil to prevent ice from forming on the inner surface of the inner cylinder.

Abstract: An apparatus is developed for discharging a waste gas in a semiconductor (or TFT-LCD) manufacturing process. The present invention has its purpose to constantly set the amount of purge of nitrogen for inducing the waste gas to discharge while increasing a temperature of the waste gas so that dust of the waste gas is not accumulated on the inner wall of a pipe, and prevent an accident such as a burn from occurring in workers. The apparatus includes an inlet transfer 100 having an inlet port 102 and a support rib 104, a discharge transfer 140 having a support jaw 144 fixed to a support rib and forming a blow-off gap 110 along with the inlet transfer, a transfer cap 160 coupled to the top of the inlet transfer, while surrounding the discharge transfer, a heating casing 180 forming a heating room 182 and having a nitrogen inlet port 184, an electric heat wire 200 disposed within the heating room, and a temperature sensor 220 for controlling a temperature of the electric heat wire.

Abstract: A flue heater is detachably secured to the flue of a chimney. The flue heater uses an electrical power source to create heat and direct the heated air into the lower portion of a flue. The device can be attached to the flue before igniting a fire and removed immediately prior to lighting a fire. The device can be used with any pre-existing chimney without the need for any large expense in retrofitting a permanent flue heater.

Abstract: A semi-automatic temperature control (SATC) device for controlling a heating, ventilation and air conditioning (HVAC) system includes a microprocessor operative to receive a plurality of inputs, and control air discharge temperature and blower speed based on the plurality of inputs. The SATC device further includes a switch for controlling the direction of air flow in the cabin of an automotive vehicle independent of the control provided by the microprocessor.

Abstract: An electric heating attachment for electrically heating the exterior portion of a sewer vent of a building to keep the vent from clogging from snow and/or ice and frost that may accumulate on the building roof. The attachment has an elongated rod insertable into the vent a with an electric heating tape extending along the length thereof. Laterally extending arms on an upper portion of the rod engage the top edge of the vent to limit the extent of the insertion of the rod into the vent. The section of the rod extending above the lateral arms terminates in a hoop portion having a portion of the heating tape extending therealong to heat the area immediately above the sewer vent to keep this area open to the atmosphere by melting the snow and/or ice above the vent.