Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2006-09-12
2006-09-12
McDowell, Suzanne E. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S296000
Reexamination Certificate
active
07105121
ABSTRACT:
Fuel system components for vehicles may be made from polyethylene components which are typically blow molded. To inhibit fuel vapour permeation, the polyethylene is often co-extruded into a parison with the parison comprising a barrier layer. Upon trimming flash or in the mold closure itself, the barrier layer may be ruptured. Sealing of areas of discontinuity in the fuel system component to inhibit hydrocarbon vapour pass through is achieved by sealing the area of barrier discontinuity with a sealing bead which has the necessary barrier properties. The barrier properties may be inherent in the sealing bead material or in a barrier layer extruded into the sealing bead.
REFERENCES:
patent: 3779420 (1973-12-01), Knaus
patent: 3801402 (1974-04-01), Suter
patent: 3801425 (1974-04-01), Cook
patent: 4368086 (1983-01-01), Villemain
patent: 4995528 (1991-02-01), Sharp
patent: 5129544 (1992-07-01), Jacobson et al.
patent: 5425470 (1995-06-01), Duhaime et al.
patent: 5547096 (1996-08-01), Kleyn
patent: 0 300 192 (1988-06-01), None
patent: 58175636 (1983-10-01), None
patent: 58202112 (1983-11-01), None
patent: WO 00/29773 (2000-05-01), None
patent: WO 00/43230 (2000-07-01), None
Ten Page Brochure Entitled ‘Adhesive Resiin Admer’ Mitsu Petrochemicals (America).
Bereskin & Parr
McDowell Suzanne E.
Salflex Polymers Ltd.
LandOfFree
Sealing bead does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealing bead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing bead will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3584488