摘要:
A single burner snow melter is capable of a snow start. The burner assembly has a fuel burner having adjustable combustion output and a nozzle through which products of combustion emerge, and a combustion chamber which has a first portion in substantially air-tight communication with the fuel burner and which encloses the nozzle. A second portion of the combustion chamber is shaped and dimensioned such that the second portion is placed into a snow melting receptacle or pit. The combustion chamber has a plurality of directional discharge means formed at least on its second portion through which products of combustion from the fuel burner emerge, and thus agitate, and melt snow loaded into a tank or pit. The burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
摘要:
A startup burner assembly for use in snow melting applications, and which permits initiation of snow melting without first supplying water as a coolant. The startup burner assembly comprises a fuel burner having adjustable combustion output and a nozzle to facilitate the emergence of products of combustion, and a combustion chamber having a first portion in substantially air-tight communication with the fuel burner and enclosing the nozzle and a second portion shaped and dimensioned for disposition into a snow melting receptacle or pit. The combustion chamber has a plurality of discharge holes formed at least on the second portion thereof to permit the egress of products of combustion from the fuel burner into the tank or pit, and thereby permit agitation and melting of snow loaded therein, The startup burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
摘要:
A single burner snow melter is capable of a snow start. The burner assembly has a fuel burner having adjustable combustion output and a nozzle through which products of combustion emerge, and a combustion chamber which has a first portion in substantially air-tight communication with the fuel burner and which encloses the nozzle. A second portion of the combustion chamber is shaped and dimensioned such that the second portion is placed into a snow melting receptacle or pit. The combustion chamber has a plurality of directional discharge means formed at least on its second portion through which products of combustion from the fuel burner emerge, and thus agitate, and melt snow loaded into a tank or pit. The burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
摘要:
A startup burner assembly for use in snow melting applications, and which permits initiation of snow melting without first supplying water as a coolant. The startup burner assembly comprises a fuel burner having adjustable combustion output and a nozzle to facilitate the emergence of products of combustion, and a combustion chamber having a first portion in substantially air-tight communication with the fuel burner and enclosing the nozzle and a second portion shaped and dimensioned for disposition into a snow melting receptacle or pit. The combustion chamber has a plurality of discharge holes formed at least on the second portion thereof to permit the egress of products of combustion from the fuel burner into the tank or pit, and thereby permit agitation and melting of snow loaded therein, The startup burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
摘要:
The present invention is directed to a material, or articles made from the material, which provide water resistance and thermal insulation and may be reversible.
摘要:
A method is provided for the formation of ultra-shallow boron doped regions in a semiconductor device. In one embodiment of the invention an N-type semiconductor substrate (15) is provided having a first P-type region formed therein. A dielectric layer (16) is formed on the substrate surface and a material layer (17) doped with fluorinated boron is formed on the dielectric layer (16). A second P-type region (22), characterized by a high dopant concentration at the substrate surface and a uniform junction profile, is formed in the substrate adjacent to the first P-type region by diffusing boron atoms from the material layer (17) through the dielectric layer (16) and into the substrate (15). The second P-type region (22) has a very shallow junction depth which is closer to the substrate surface than the first P-type region.
摘要:
A device is disclosed having a low-voltage memory device. The device includes a first memory having a first memory topology and a second memory having a second memory topology, with both memories located in an integrated circuit. The first memory is a relatively high-density memory device, capable of storing large amounts of data relative to the second memory. The second memory is a low-voltage memory device capable of being accessed at low-voltages relative to the voltage at which the first memory can be accessed. Accordingly, the second memory is accessible when the integrated circuit is placed in a low-voltage mode of operation, which may represent a data retention state (sleep state) for the first memory or other portions of the integrated circuit. Thus, the device is able to store large amounts of data in the high density memory in a normal or active mode of operation, and also have access to the low-voltage memory during the low-voltage mode of operation.
摘要:
In a top down, bottom up blind with a fixed headrail as well as an intermediate or moving rail and bottom rail at least one spring is provided in the headrail or in the intermediate rail and is connected to the lift cords that raise and lower the intermediate rail. When the intermediate rail is fully raised to abut the headrail, the spring or springs pulls a portion of each lift cord into the headrail or intermediate rail. Consequently, the spring or springs compensate for the slippage of the lift cords that control the intermediate rail and there is no gap between the headrail and the fully raised intermediate rail.
摘要:
A clamping system that includes a first jaw, a second jaw—the second jaw being pivotally connected to the first jaw—a locking handle pivotally connected to the first and second jaws, an adjustment element, first and second lever arms, and a release lever secured to the locking handle and configured to move the locking handle away from the first jaw. The clamping system is capable of being fitted with a mounting apparatus including a pin and a receiver, one of which is attached to the clamping system and the other of which is attached to an external surface.
摘要:
A clamping system that includes a first jaw, a second jaw—the second jaw being pivotally connected to the first jaw—a locking handle pivotally connected to the first and second jaws, an adjustment element, first and second lever arms, and a release lever secured to the locking handle and configured to move the locking handle away from the first jaw.