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:
Oct. 20, 1998
Filed:
Jul. 24, 1997
Michael T Campbell, Grand Rapids, MI (US);
Cascade Engineering, Inc., Grand Rapids, MI (US);
Abstract
An acoustical barrier (10) is mounted to the barrier wall (20) of a motor vehicle. The acoustical barrier (10) includes a mass layer (12) of molded construction and sound dampening characteristics. The mass layer (12) includes a plurality of grommets (14, 14', 14', 54) integrally molded as a single piece with a lower surface of the mass layer. Each grommet (14, 14', 14', 54) has a continuous wall with an inner peripheral surface (27, 27', 27') with an upper portion of the wall integrally formed with the inner surface (18) of the mass layer and a lower portion of the wall having a lower edge (22, 22', 22') abutting the barrier wall (20). The inner surface (27, 27', 27') of the continuous wall defines an opening in each grommet (14, 14', 14', 54). A plurality of openings (25, 25', 25') in the mass layer are in communication with at least some of the grommet openings. Various fasteners (26, 70), shafts or sleeves (62), cables (64), wires, and other vehicle accessories can extend through one or more of the grommets and through corresponding openings (29) in the vehicle barrier wall (20)