Fluidizable bed structure
AssigneeNorthern Telecom Limited
InventorsJorg-Hein Walling, Gerald R. Arbuthnot, Andre Dumoulin
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Abstract
A fluidizable bed structure with a rigid support for carrying a bed of fluidizable powder, the support being at least two inches deep and having its porosity formed by interstices which reduce in total area from the lower surface of the support to its upper or support surface. A fluidizable bed structure is also described having a support which has an electrode contacting it with the depth of the support from its upper surface to the electrode sufficient to prevent arcing from the electrode to the upper surface.
Claims16
A fluidized bed structure comprising a housing, a rigid porous support within the housing for carrying a bed of fluidizable powder and for supplying fluidizing gas through the support and into the powder, the support having a depth from a support surface of at least 2 inches and having its porosity formed by interstices passing through the support, the interstices reducing in total area from an input side of the support to the support surface.
A fluidizable bed structure comprising:
- a housing,
- a rigid porous support within the housing for carrying a bed of fluidizable powder and for supply of fluidizing gas through the support and into the powder, the support defining interstices passing through it, the interstices reducing in total area from an input side of the support to the support surface;
- and
- an electrode extending across the structure, contacting material of the support and allowing fluidized gas to pass through the support, the depth of the support from its upper surface to the electrode being sufficient to prevent arcing from the electrode and through the support to its upper surface.
Dependencies are inferred from the claim text.