Invention Grant
- Patent Title: Muffler insert, and systems, methods and apparatus for making
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Application No.: US14734445Application Date: 2015-06-09
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Publication No.: US09938872B2Publication Date: 2018-04-10
- Inventor: Chris Jon Wildgrube
- Applicant: Bay Fabrication Inc.
- Applicant Address: US WI Green Bay
- Assignee: Bay Fabrication, Inc.
- Current Assignee: Bay Fabrication, Inc.
- Current Assignee Address: US WI Green Bay
- Agency: Northwind IP Law, S.C.
- Agent Thomas D. Wilhelm
- Main IPC: B29C70/30
- IPC: B29C70/30 ; F01N1/08 ; B29C70/38 ; B29K103/04 ; B29L31/30 ; B29C39/24 ; B29C70/16 ; B29K105/08

Abstract:
Sound-attenuating mufflers and muffler inserts, and systems and methods for fabricating such muffler inserts. Continuous fiberglass roving is fed to a pneumatic jet head which fluffs the roving and presents the fluffed roving to a delivery wand at the exit end of the jet head. A jet head/wand assembly is moved along a three-dimensional path such that the wand delivery tip travels along a predetermined three-dimensional path inside a mold thereby depositing the continuous, fluffed fiberglass strands in the mold along the predetermined path. A terminal end portion of a liquid resin conduit is mounted to the fiberglass-dispensing wand, as part of the delivery tip, and drip-feeds liquid resin onto the fiberglass as the fiberglass is being deposited in the mold. The undulating, up and down movement of the delivery tip produces a wave-like undulating pattern in the appearance of the rovings in the resulting molded product.
Public/Granted literature
- US20160363018A1 MUFFLER INSERT, AND SYSTEMS, METHODS AND APPARATUS FOR MAKING Public/Granted day:2016-12-15
Information query
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