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US 2023/0243589 A1Published application
Closure for concrete products curing kiln
AssigneeBesser Company
InventorsDonald Robert Andor, Zachary Thomas Adrian
Life of this patent
Estimating the term…
Abstract
A concrete products curing kiln and kiln closure apparatus comprising a pressure door shaped to cover an opening of the kiln, and an expandable chamber. The expandable chamber is positioned such that inflation of the chamber causes the chamber to expand and press on, and at least partially seal, the pressure door against a kiln door frame defining the kiln opening.
Claims18
A concrete products curing kiln closure apparatus comprising;
- a pressure door shaped to cover a kiln opening;
- and
- an expandable chamber positionable against a kiln door frame defining the kiln opening, such that inflation of the chamber causes the chamber to expand and press on, and at least partially seal, the pressure door against the kiln door frame, when the pressure door is covering the kiln opening.
A concrete products curing kiln comprising;
- a kiln opening;
- a pressure door shaped to cover the kiln opening;
- and
- an expandable chamber positionable against a kiln door frame defining the kiln opening, such that inflation of the chamber causes the chamber to expand and press on, and at least partially seal, the pressure door against the kiln door frame, when the pressure door is covering the kiln opening.
1 more element
The kiln of claim 15 in which the pressure door comprises a flexible material.
The kiln of claim 16 in which:
- the pressure door comprises a roll-up door supported in rails mounted adjacent the kiln door frame for vertical sliding motion between retracted and deployed positions;
- and
- a spool is mounted adjacent the kiln door frame and connected to the pressure door and is configured to roll the pressure door onto itself when the pressure door is moved from the deployed to the retracted position.
The kiln of claim 17 in which:
- a bottom end of the pressure door comprises a rigid base bar;
- the apparatus comprises clamps positioned to engage and clamp the base bar against a floor surface adjacent and extending along the kiln opening, when the pressure door is in the deployed position;
- and
- a bottom seal is attached to a bottom surface of the base bar and positioned to be sandwiched between the base bar and the floor surface when the clamps are engaged.
1 more element
Dependencies are inferred from the claim text.