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US 9,051,731 B2Granted
Acoustical door structure
AssigneeGeorgia-Pacific Gypsum LLC
InventorsVincent B. Thomas, Steven D. Brown, Scott J. Abolt
Life of this patent
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Abstract
A door structure is provided having two outer dampening layers, each outer dampening layer having a base surface and a damping surface, and an inner compartmentalized layer adjacent to the damping surfaces of the two outer dampening layers, the inner compartmentalized layer includes at least two compartments, wherein the damping surfaces of the two outer dampening layers are substantially unconstrained relative to the inner compartmentalized layer such that the damping surfaces are deformable.
Claims29
A door structure, comprising:
- two outer dampening layers, each outer dampening layer comprising a base layer having a base surface and a damping material layer having a damping surface;
- and
- an inner compartmentalized layer adjacent to the damping surfaces of the two outer dampening layers, the inner compartmentalized layer comprising at least two compartments,
- wherein the base layer has a Young's Modulus of from about 350,000 psi to about 600,000 psi and the damping material layer has a Young's Modulus of from about 10,000 psi to about 18,000 psi,
- wherein the damping material layer comprises mass loaded vinyl in an amount of from about 1 pound per square foot to about 2.2 pounds per square foot.
2 more elements
A door structure, comprising:
- an outer dampening layer comprising a base layer having a base surface and a damping material layer having a damping surface;
- and
- an inner compartmentalized layer adjacent to the damping surface of the outer dampening layer,
- wherein the base layer has a Young's Modulus of from about 350,000 psi to about 600,000 psi and the damping material layer has a Young's Modulus of from about 10,000 psi to about 18,000 psi,
- wherein the damping material layer comprises mass loaded vinyl in an amount of from about 1 pound per square foot to about 2.2 pounds per square foot.
2 more elements
Dependencies are inferred from the claim text.