초록 ▼

A mineral fiber mat is formed from a slurry of a known fiber material and a binder in a vacuum mold. The mold includes a porous screen through which a vacuum is drawn to remove water from the slurry while leaving the mat on top of the screen. A cover is pressed down on the mat under the vacuum. The

A mineral fiber mat is formed from a slurry of a known fiber material and a binder in a vacuum mold. The mold includes a porous screen through which a vacuum is drawn to remove water from the slurry while leaving the mat on top of the screen. A cover is pressed down on the mat under the vacuum. The fiber mat or layer is formed to include a simulated surface, such as tree bark, or a brick wall. To form a hollow log the uncured layer is placed over a core to provide a partial enclosure around the core that is of a sufficient size to permit a gas burner to be placed in the enclosure and hidden from view. Panels that are to be used flat are cured while held flat.

대표청구항 ▼

[ What is claimed is:] [1.] A process of forming a mineral fiber panel comprising the steps of:providing a slurry of mineral fibers and a binder in a liquid;forming a mat from the mineral fibers and binder slurry by removing liquid from the slurry to bind the fibers together while the mat is support

[ What is claimed is:] [1.] A process of forming a mineral fiber panel comprising the steps of:providing a slurry of mineral fibers and a binder in a liquid;forming a mat from the mineral fibers and binder slurry by removing liquid from the slurry to bind the fibers together while the mat is supported on a porous mold support providing a desired surface configuration for the mat;wherein a vacuum is drawn through the porous mold support to remove the liquid while squeezing the mat with a member urged toward the support during the forming step solely by drawing the vacuum through the porous mold support; anddrying the formed mat to rigidify the mineral fibers and binder.