Porous Cover Mat Especially Suited for Use with K-Style Gutters

摘要

A cover mat suitable for use in preventing debris from entering a rain gutter does not require support when positioned in the gutter other than by portions of the rain gutter engaging the cover mat. The cover mat is formed of a nonwoven polyester fiber material that is coated with a stiffening agent, such as a styrene monomer that will add stiffness without significantly affecting the flow of fluids through the porous or liquid permeable fiber mat.

主权项

1. A gutter cover mountable on a rain gutter, the gutter cover comprising:
a porous fiber mat comprising randomly disposed fibers held together by a binding agent; a coating separate from the binding agent, and overlying and disposed between at least a portion of the fibers within the mat, the coating including a stiffening agent adding rigidity to the porous fiber mat so that the porous fiber mat can be disposed along the top of the rain gutter and spaced from a lower surface of the rain gutter, without a supporting structure joined to the porous fiber mat, the stiffening agent adding sufficient rigidity to the porous fiber mat so that the porous fiber mat can be supported primarily adjacent opposite edges of the porous fiber mat and not primarily along a lower surface of the porous fiber mat between the opposite edges; the porous fiber mat remaining sufficiently porous despite the presence of the stiffening agent within the fiber mat to allow passage of rainwater therethrough into the rain gutter, but preventing passage of solid debris into the rain gutter.