Back to results
US 6,133,551 AGranted
Kiln
OwnerJohn W. Morrisoninventor
Life of this patent
Estimating the term…
Abstract
A gas or electrically heated kiln furnace in which the hearth is stationary and an outer shell or wall with a door for access rotates around a stationary hearth. Loading and unloading is accomplished by rotating the outer shell to align the door with a position where a workpiece is to be inserted or removed. The kiln can be used as an up draft or down draft kiln, as a single chamber or a progressive chamber kiln. This kiln uses minimum floor space in that a circular shell is not rolled back but rotated about a hearth, around a vertical axis.
Claims11
A kiln comprising:
- stationary refractory hearth means,
- bearing means rotatable about a substantially vertical axis and associated with the hearth means,
- refractory shell means having a generally cylindrical wall, and enclosed with roof means, and supported on the bearing means,
- heating means for heating above the hearth means and inside the shell means,
- the shell means having door means,
- whereby the shell means is rotatable about the vertical axis on the bearing means to selectively position the door means at various positions about the vertical axis, and
- stationary vertical divider means disposed about the vertical axis to form at least two compartments above the hearth means and inside the shell means whereby the compartments are selectively accessible through the door means in the shell means by selectively rotating the shell means to position the door means adjacent any one of the compartments.
4 more elements
A kiln comprising:
- a stationary refractory hearth,
- a bearing rotatable about a substantially vertical axis associated with the hearth,
- a refractory shell having a generally cylindrical wall and supported on the bearing,
- heating means for heating above the hearth and inside the shell means, and
- the shell having a door,
- whereby the shell is rotatable about the vertical axis on the bearing to position the door at various positions about the vertical axis, and
- a stationary vertical divider disposed about the vertical axis to form at least two compartments above the hearth and inside the shell whereby the compartments are selectively accessible through the door in the shell by selectively rotating the shell to position the door adjacent any one of the compartments.
4 more elements
Dependencies are inferred from the claim text.