Expansion foam cavity filler and method

a filler and foam technology, applied in the field of expansion foam cavity filler and method, can solve the problem that polyethylene has almost no stretch, and achieve the effect of reducing vibration, noise, or fumes
US20050029148A1Inactive Publication Date: 2005-02-10RUST HENRY C
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Patent Information

Authority / Receiving Office
US Ā· United States
Patent Type
Applications(United States)
Current Assignee / Owner
RUST HENRY C
Publication Date
2005-02-10
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

A plastic or elastomeric foam cavity filler, useable for filling of cavities such as are found in vehicles, ships, boats, mobile or modular homes, buildings, machinery, and equipment comprises a flexible pouch containing at least one material suitable for chemical or thermal activation which, upon activation of the material, the flexible pouch is placed in a cavity. The material expands the pouch to fit the cavity in which it was placed, restricting the entrance of, or transmission through, of noise, vibration, or fumes. When more than one foam component material is used, the component materials are separated within the flexible pouch. Among the means of separation are a pouch within the flexible pouch or barriers forming separate compartments in the pouch.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] None STATEMENT AS TO RIGHTS TO INVENTION MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT

[0002] Not Applicable BACKGROUND OD THE INVENTION

[0003] 1. Field of the Invention

[0004] This invention relates to the use of a chemically or heat activated high expansion foam within a pouch to fill a cavity in motor vehicles, boats, ships, campers, mobile or modular homes, home appliances, buildings, machinery, and equipment. The pouch is a containment pouch that may be composed of a suitable material, or coated, so it adheres to a surface adjacent to the cavity.

[0005] 2. Background Information

[0006] The construction of an automobile body results in many cavities of various sizes and shapes. Some of these cavities are currently filled with a material, such as a foam plastic, to prevent noise or fumes from entering into the passenger compartment or from one compartment to another. Foam plastic materials, as a filler, are also used to red...

Claims

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