Package making – Methods – Filling preformed receptacle and closing
Reexamination Certificate
2006-10-25
2009-11-17
Desai, Hemant M (Department: 3721)
Package making
Methods
Filling preformed receptacle and closing
C053S479000, C053S567000, C053S585000
Reexamination Certificate
active
07617657
ABSTRACT:
An elongate, tubular, transparent thin-film scallop bag formed with a tapered, open top edge and a closed bottom edge, and sized to hold a column of scallop medallions. The bag includes a plurality of regularly spaced perforations for eliminating trapped and excess moisture trapped during the filling of the bag with the scallops, and further formed with at least one vent hole larger than said perforations near the base of the bag to relieve back air pressure during the loading process. The bag's composition includes at least a twenty percent mixture of linear low density polyethylene (LLDPE), at least a thirty percent low density polyethylene (LDPE), and at least forty-five percent Metallocene 8C. The novel composite provides the requisite strength for a thickness that can carry the necessary perforations spacing without tearing or stretching, while providing a surface characteristic that is smooth and allows the scallops to slide easily into the bag.
REFERENCES:
patent: 2911307 (1959-11-01), Handler
patent: 3811411 (1974-05-01), Moeller
patent: 3839525 (1974-10-01), Doll
patent: 5226735 (1993-07-01), Beliveau
patent: 5492705 (1996-02-01), Porchia et al.
patent: 6286681 (2001-09-01), Wilfong et al.
patent: 6391357 (2002-05-01), Muise et al.
Brue Lipsitt; Metallocene Polyethylene Films as alternative to flexible PVC for Medical Device Fabrication; Sep. 1997; Medical Device Inc.; pp. 1-5.
Desai Hemant M
Fulwider Patton LLP
Wlkay Plastics Co., Inc.
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