Acoustical door
AssigneeThe Ceco Corporation
InventorsJames K. W. Mardian, Curtis I. Holmer
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Abstract
A light-weight acoustical door is comprised of a wood frame separating and joining first and second panels and providing a space between the panels which filled with fibrous sound-absorbing material. Each panel is comprised of at least three layers, two of which are significantly more dense than the other layer. One of the dense layers may be made from a a weighted plastic sheet. One of the panels may have grooves formed in the inner face thereof.
Claims7
An acoustical door comprising first and second panels having inner and outer surfaces, a frame position between and connecting edge regions of the inner surfaces of said first and second panels to provide and enclose a space between the said panels, each of said panels comprising at least three layers of material bonded in close face-to-face relationship and in which a first layer disposed at the outer surface of each panel is less dense than the second and third layers of each panel and the space between the two panels is substantially completely filled with a fibrous sound-absorbing material.
Dependencies are inferred from the claim text.