Abstract: In accordance with the present invention, there are provided solar water pasteurizers that are portable, efficient, inexpensive and easy to use. In its simplest form, the solar pasteurizer includes a transparent container such as a bag or envelope that contains at least one energy converting structure and has sufficient insulation to enable heating water to a temperature of at least 65° C. (and preferably to a temperature of at least 70° C.) for a time sufficient to achieve pasteurization (at 65-70° C., a period of only about 6 minutes is required for pasteurization). Invention solar pasteurizers are particularly useful for pasteurizing water. In additional embodiments, invention solar pasteurizers include additional features, such as, for example, a water pasteurization indicator, and a receptacle for retaining same within the invention container.

Abstract: The present invention provides a method for utilizing an oil-fired heat exchange system to fracture a subterranean formation at a remote work site to produce oil and gas. The method of the present invention includes using a single-pass tubular coil heat exchanger contained within a closed-bottom firebox having a forced-air combustion and cooling system to heat the treatment fluid. The rig also includes integral fuel tanks, hydraulic and pneumatic systems for operating the rig at remote operations in all weather environments. In a preferred embodiment, the method of the present invention includes using an oil-fired heat exchanger system to heat water on-the-fly (i.e., directly from the supply source to the well head) to complete hydraulic fracturing operations. The method of the present invention also includes adding chemical additives and proppants to the heated treatment fluid prior to injection into the formation.

Abstract: A tamper resistant enclosure for an electronic circuit includes an inner copper case, a tamper sensing mesh wrapped around the inner case, an outer copper case enclosing the inner case and the tamper sensing mesh, and a venting device forming a vent channel from inside the inner case to outside the outer case, the vent channel passing between overlapping layers of the tamper sensing mesh and having at least one right angle bend along its length. The venting device consists of two strips of a thin polyamide coverlay material laminated together along their length, and a length of wool yarn sandwiched between the two thin strips and extending from one end of the strips to the other end of the strips to form the vent channel. The length of yarn follows a zig-zag path between the first and second strips, the zig-zag path including at least one right angle bend.

Abstract: A system for cooling rack mounted equipment includes: a rack configured to house rack mounted equipment, the rack providing a front port bordered by a top and two sides; and a cold-air duct separable from and attached to the rack about the top and two sides, the duct being configured to be in fluid communication with a region adjacent to the duct to receive air from the region, the duct includes: a front member; side members coupled to the front member; and an end member configured to selectively allow the passage of air through the end component from the region into the duct; where the duct is attached to the rack to form a substantially airtight seal between the rack and the duct.

Abstract: The invention relates to a V-shaped trough comprising two vertical side walls joined by two converging top walls, said walls being provided with a plurality of openings, thereby making the grain columns between the rows of troughs smaller inside the tower and increasing the sped of drying, since the thickness of the grain columns is reduced, thus shortening the drying time.

Abstract: Some embodiment includes an air conditioner, an air blower, a sensor, and a controller. The air conditioner works for supply to cold spaces. The air blower produces streams of air in and between a server room and an air conditioning system. The sensor takes a measure of current or power as consumption at servers. The controller operates on the measure at the sensor, to control the air blower.

Abstract: A fuel-fired water heater is shut down when a predicted steady state combustion chamber temperature is below a known threshold. The predicted steady state temperature is based on combustion chamber temperatures during heat up of the burner and appliance.

Abstract: A system and method for operating a building heating system. The system includes a controller that operates the heating system in three modes of operation. The controller controls a valve that regulates the flow of steam to the building water loop. By maintaining a constant steam flow rate during peak demand periods, steam consumption during peak demand periods are reduced while maintaining a comfortable environment within the building.

Abstract: A foldably tensioned boot loadable air damper device for controlling the flow of air through ductwork, and a method of installing same. The damper device includes an actuator having a retractable member and a pivoting member, wherein the pivoting member is operatively connected to the retractable member of the actuator. The damper device also includes at least one support base supporting the actuator and the pivoting member with respect to each other, a foldable damper blade attached to the pivoting member, and at least one tensioned hinge member operatively connected to the foldable damper blade for unfolding the damper blade. The damper device may be inserted through a register boot and into a ductwork when folded.

Abstract: Disclosed is a fixing structure for ventilator cover spring, comprising a fixing component, a connector, a movable part, and a cover spring. The fixing component is a U-shaped protrusion formed on a cover and has a top wall and two leg walls, a first opening and a second opening are respectively formed in the two leg walls. Two cuts are formed at two ends of the connector, wherein each cut is provided with a tongue, the connector being inserted through and fixed in the first opening and the second opening. The movable part has a head portion and a foot portion, wherein the head portion is fixed on the connector, and the foot portion extends toward the top wall. The cover spring is fitted over the foot portion and is confined on the foot portion.

Abstract: A method and apparatus for treating a selected region of a metal layer, used to form a metal card, by annealing the selected metal region so the selected region becomes soft and ductile, while the rest of the metal layer remains stiff. The softened, ductile, selected metal region can be embossed with reduced power and with reduced wear and tear on the embossing equipment. Alternatively, the annealed metal layer can undergo additional processing steps to form an assembly which can then be embossed. The method may include the use of a fixture for holding the metal layer, with the fixture having a window region for enabling heat to be applied to soften the region of the metal layer within the window region. The fixture includes apparatus for cooling the portion of the metal layer outside of the window region and for preventing the temperature of the metal layer outside the window region from rising above predetermined limits.

Abstract: The present invention relates to an air intake grid (11) having a mesh (12) provided with elongate elements (16), two adjacent elongate elements (16) crossing at a node (14, 15). At least one elongate element (16) is surrounded by at least one anti-icing member (20), said anti-icing member (20) having a downstream portion (22) matching the shape of said corresponding elongate element (16) and an elongate upstream portion (21) that is resilient and that vibrates under the effect of vortices generated by a flow of air (30) passing through said grid (11) after ice has become deposited (31) on said upstream portion (21).

Abstract: Provided is a semiconductor manufacturing apparatus including an atmospheric transfer device capable of suppressing corrosion of a part without having a corrosion resistant part and, also, capable of taking anti-corrosion measures in a cost effective way. The semiconductor manufacturing apparatus 100, installed in a clean room, includes an atmospheric transfer device 116; an atmospheric transfer chamber 108 for accommodating the atmospheric transfer device 116; a cover member 118 for separating a part of the atmospheric transfer device 116 from the atmospheric transfer chamber 108; and a gas exhaust unit 120 that adjusts a region 119 enclosed by the cover member 118 to have a lower pressure than that of the atmospheric transfer chamber 108. Here, the cover member 118 is made of a corrosion resistant material or an anti-corrosion treatment may be performed on the cover member.

Abstract: Device including a casing formed by non-conducting material fastenable to the household appliance, electrical supply means and a lighting circuit carried by the casing, and a spark plug fastenable to the household appliance in proximity of burner means carried by the household appliance so as to be electrically connected to earth; the lighting circuit being adapted to supply a high voltage alternating current to said spark plug to make it generate a spark adapted to produce the lighting of a flame following the feeding of a combustible gas flow to the burner means; wherein the supply means are direct current low voltage generator means carried by and accommodated in the casing and supply in parallel said lighting circuit, through ac/dc transformer means, and a control circuit, through electrical disconnection means from the lighting circuit, the control circuit being electrically connected to the spark plug and to a first terminal of a LED indicator fastenable in use to the household appliance and having a se

Abstract: A vehicle air conditioner that can perform air conditioning operation in an inside air circulating mode while suppressing the mist on a windshield and prevent deterioration in an inside air quality. When exhaust gas concentration on the outside of a vehicle is high, an outside air lead-in mode is switched to an inside air circulating mode and window mist limit humidity at that point is calculated. When inside humidity is close to the window mist limit, a compressor is actuated, the air is blown out from a DEF blowout port into a cabin, or an air volume in a blower is increased to prevent the mist on the windshield and delay switching to the outside air lead-in mode as much as possible. Consequently, air conditioning operation in the inside air circulating mode is performed while the mist on the windshield is suppressed to prevent deterioration in the inside air quality.

Abstract: Method of controlling the operation of a combustion device to provide safe and reliable operation while reducing NOx emission that includes providing a flow of fuel and diluent at a determined volume ratio to a flame in the combustion device; providing a flame stability sensor to generate a measurement of a characteristic of the flame, providing a flow measurement for each of the fuel and diluent, and controlling the determined volume ratio of fuel:diluent using the measurement from the flame stability sensor and/or flow measurements. A combustion system incorporating this method also is included.

Abstract: A hot water supply system includes a first tank for storing hot water for heating; a second tank for storing hot water to be supplied to a hot water tap; a heater circulation path for supplying the hot water of the first tank to a heater; a first path that includes a first heat transfer portion surrounding the exposed portion of the second tank to the inside of the first tank and that connects the first tank to a forward portion of the heater circulation path so that the hot water of the first tank can be supplied to the heater through the first heat transfer portion; and a second path that includes a second heat transfer portion disposed along the first heat transfer portion, and that allows heat exchange between the hot water of the second tank and the hot water flowing through the first heat transfer portion due to the flow, in the second heat transfer portion, of the hot water of the second tank.

Abstract: Embodiments of the present invention provide a blower enclosure configured to secure to a base and house a blower. The blower enclosure includes a main body defining an internal blower chamber, and at least one access door configured to open to allow access to the blower. The enclosure may also include a gland plate secured over a preformed opening in the main body. The gland plate may include an O-ring configured to sealingly engage an outlet pipe of the blower. The enclosure may further include a fixed filter shroud configured to allow a user to install and remove a filter element without the use of a tool.

Abstract: A dishwasher having a water vapor vent structure is provided. The water vapor vent structure may include an outer cover having one or more water vapor vents, and an inner cover detachably mounted to the outer cover and having condensation channels for condensing water vapor. As water vapor is collected and maintained in the condensation channels for a period of time, condensation efficiency may be enhanced, and air quality in a room in which the dishwasher may be maintained at an acceptable level.

Abstract: A hybrid solar attic vent comprising a housing configured to be mounted on the roof or in the gable of a building in communication with the attic of the building. A photovoltaic solar panel is positioned to be exposed to sunlight and to power the attic fan when sufficient sunlight is present. An alternative source of energy, which may be the building's AC power, is connected to the fan through an electronic control module. The control module monitors the output of the solar panel and switches the fan's power source from solar power to the alternative source of energy when the solar panel produces insufficient electrical energy to power the fan. A thermostat allows operation of the fan by the alternative power source only when the temperature in the attic is above a predetermined threshold.