Steam injection press platen for pressing fibrous materials
AssigneeMasonite Corporation
InventorsBrian Bonomo, Pete Walsh, Kelly Seifert, Alex Vergara, Michelle Merrell
Life of this patent
Estimating the term…
Abstract
A distribution platen, for use in a fiberboard press, having a molding cavity and including a steam injection conduit providing fluid communication into the molding cavity from a remote supply of steam. The distribution platen further includes steam venting conduit which provides fluid communication from the molding cavity to a remote location. The press platen allows for the continuous flow of steam into the molding cavity through the dedicated steam injection conduit, and the continuous flow of steam and moisture from the molding cavity through the dedicated venting conduits.
Claims27
A distribution platen for use in a press for manufacturing fiberboard products from furnish, said distribution platen comprising:
- a contact surface for receiving and pressing against said furnish;
- at least one steam injection nozzle located at said contact surface and coupled to a source of steam, whereby steam may be injected into said furnish;
- and
- at least one steam venting port located at said contact surface and coupled to a source of negative pressure to remove injected steam from said furnish, said steam injection nozzle and steam venting port being simultaneously operable during the operation of said press.
A distribution platen for use in a press for manufacturing fiberboard products from furnish, said distribution platen comprising:
- a contact surface for receiving and pressing against said furnish;
- at least one steam injection nozzle located at said contact surface and coupled to a source of steam, whereby steam may be injected into said furnish;
- and
- at least one steam venting port located at said contact surface and coupled to the atmosphere to remove injected steam from said furnish, said steam injection nozzle and steam venting port being simultaneously operable during the operation of said press.
A distribution platen for use in a press for manufacturing fiberboard products from furnish, said distribution platen comprising:
- a generally steam-impermeable contact surface for receiving and pressing against said furnish;
- at least one steam injection nozzle located at said contact surface and coupled to a source of steam, whereby steam may be injected into said furnish;
- and
- at least one steam venting port located at said contact surface and coupled to one of a source of negative pressure and the atmosphere to remove injected steam from said furnish, said steam injection nozzle and steam venting port being simultaneously operable during the operation of said press.
Dependencies are inferred from the claim text.