Patent MX-2012009371-A (MX)
Title: Metal recovery from contaminated metal scrap.
Inventor: PERRY OPHNEIL HENRY
IPC: C22B7/00
Filed: 2011-02-04
Abstract: A metal reclaiming system and method for reclaiming metal from scrap material is provided. The system has a furnace (12) and a controller (106) for controlling operation of the system. The controller (106) operates the metal reclaiming system in a first operating mode in which the furnace (12) is operated at a first temperature in the range of 350Â°C to 550Â°C to incinerate pollutants and drive off volatile organic compounds (VOCs) from the scrap material without melting the metal. The controller (106) is operates the metal reclaiming system in a subsequent operating mode in which the furnace (12) is operated at a further, higher temperature to melt metal in the said scrap for reclaiming. A metal reclaiming system and method for reclaiming metal from scrap material is provided. The system has a furnace (12) and a controller (106) for controlling operation of the system. The controller (106) operates the metal reclaiming system in a first operating mode in which the furnace (12) is operated at a first temperature in the range of 350Â°C to 550Â°C to incinerate pollutants and drive off volatile organic compounds (VOCs) from the scrap material without melting the metal. The controller (106) is operates the metal reclaiming system in a subsequent operating mode in which the furnace (12) is operated at a further, higher temperature to melt metal in the said scrap for reclaiming. The present application concerns the field of vacuum cleaners, both commercial and domestic. The invention concerns a vacuum cleaner having improved ease of use and functionality by the provision of a retractable handle and/or a support structure for carrying cleaning tools. According to one aspect of the present invention there is provided a canister- type vacuum cleaner comprising a body portion which accommodates a~ suction drive and a waste receptacle in which air-entrained detritus may be collected and which is provided with wheel means which facilitate travel of the vacuum cleaner over a floor surface, wherein a manually directable wand is disposed at one end of a flexible air conduit with the other end of the conduit extending to the body portion and configured to feed into the waste receptacle, wherein the body portion further comprises a generally upright structure which comprises a graspable handle which is adapted to be capable of retracting from a deployed position having a first height to a retracted position in which the handle is retracted to a height lower than the first height, characterised in that the upright structure further comprises a generally upright fixed base frame from which support means for the handle are adapted to extend so as to deploy the handle, wherein an upper end region of the frame structure comprises a generally transversely extending fixed cross-member. The fixed cross-member is preferably disposed at a height which is above a top extent of the canister body portion. The fixed cross-member is preferably disposed as a height which is below the retracted position of the handle. In another aspect of the invention the base frame can serve as a support for carrying one or wand portion, ancillary tool or container at a location above the canister body portion.