Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Shaping against interior of a forming surface by rotation of...
Reexamination Certificate
2006-03-03
2010-10-05
Santos, Robert G (Department: 3673)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Shaping against interior of a forming surface by rotation of...
C005S689000, C005S710000
Reexamination Certificate
active
07807095
ABSTRACT:
The present invention relates to a method for manufacturing an air mat that reduces the number of manufacturing processes by means of rotational molding, while preventing the generation of defective products, to a device for molding an air mat, and to an air mat manufactured and molded by the method and device. In a method for manufacturing an air mat formed in such a manner as to integrally couple a cushion part having a plurality of air bags arranged therein for containing air at the insides thereof with a plate-shaped lower sheet disposed on the lower surface of the cushion part, the method includes the steps of: preparing a lower mold having a plurality of air bag molding recesses having given depths arranged at given intervals thereon, for molding the cushion part of the air mat.
REFERENCES:
patent: 5267365 (1993-12-01), Walter
patent: 5490292 (1996-02-01), Auburn
patent: 5561875 (1996-10-01), Graebe
patent: 6212719 (2001-04-01), Thomas et al.
patent: 2003260089 (2003-09-01), None
patent: 1020060057067 (2006-05-01), None
Choi Gin-kyu
Im Dong-gyu
Ceragem Co., Ltd
Santos Robert G
Sughrue & Mion, PLLC
Wilson Brittany M
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