Patents Assigned to Richards Engineering Limited
  • Incineration apparatus
    Patent number: 5452669
    Abstract: Incineration apparatus for incinerating a particulate material comprises a furnace housing (2), feeding means (7) for feeding material to be incinerated into said housing (2), and gas supply means (6a-c) for introducing a gas into the material in a lower part of said housing (2) so as to form a fluidised bed (8). Said gas supply means (6a-c) is spaced from the walls of said furnace housing (2) such that said walls are insulated from the fluidised bed (8) by an insulating layer of particulate material not in a fluidised state.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: September 26, 1995
    Assignee: Richards Engineering Limited
    Inventor: Ian A. Bailey
  • Thermal reclamation method
    Patent number: 5271450
    Abstract: A base material is thermally reclaimed from a mixture of the base material and a combustible substance, wherein the substance is incinerated in a fluidized bed, comprises the step of feeding the mixture after comminuting and dust from comminuting step directly into a lower part of the fluidized bed. The method is particularly suitable for the thermal reclamation of foundry sand or other base materials used in foundry processes.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: December 21, 1993
    Assignee: Richards Engineering Limited
    Inventor: Ian A. Bailey