The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
May. 31, 2000
Applicant:
Inventors:
William Barz, Shelby Township, MI (US);
Thomas L. Coon, Lapeer, MI (US);
Michael Czaplicki, Rochester, MI (US);
Assignee:
L&L Products, Inc., Romeo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/18 ; F16J 1/514 ;
U.S. Cl.
CPC ...
B32B 5/18 ; F16J 1/514 ;
Abstract
A partition for forming a barrier in a channel has a molded resin-based plate and a plurality of thermally expandable pellets attached to one side of the plate. The partition is secured in place in the channel by mounting brackets. As heat is applied, a blowing agent in the pellets is activated and the pellets expand to many times their original volume. The resultant foam seals the gap between the plate and the surrounding structure and further secures the plate in place. The partition is particularly useful in forming a sound/water/air barrier in an automotive cavity.