Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2011-04-05
2011-04-05
Aftergut, Jeff H (Department: 1746)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S192000, C156S279000, C156S429000
Reexamination Certificate
active
07918955
ABSTRACT:
An apparatus for manufacturing a flexible tubular duct includes a mandrel, and a substrate feeding assembly for feeding a strip of flexible substrate material to the mandrel. Apparatus is provided for bending the strip of substrate material to have a rounded encapsulating portion, into which is fed a stream of loose fibrous insulating material. A mechanism is further provided for delivering an elongate reinforcing element onto the strip of flexible substrate material. In operation, the rounded encapsulating portion and the reinforcing element are wound in a helical path around the mandrel so that the loose fibrous material is encapsulated as a core in the helically wound rounded encapsulating portion the reinforcing element is also encapsulated by the strip of substrate material, whereby to form a reinforced flexible tubular duct.
REFERENCES:
patent: 2874722 (1959-02-01), Hamblin
patent: 3093532 (1963-06-01), Miller et al.
patent: 3406231 (1968-10-01), Ullman et al.
patent: 3498862 (1970-03-01), Comastri et al.
patent: 3515610 (1970-06-01), Comastri et al.
patent: 3843435 (1974-10-01), Strom
patent: 5607529 (1997-03-01), Adamczyk et al.
patent: 6409897 (2002-06-01), Wingo
patent: 6676173 (2004-01-01), Donnelly
patent: 2003/0188792 (2003-10-01), Donnelly
patent: 2010/0269944 (2010-10-01), Wilson et al.
patent: 1 629 819 (1971-01-01), None
patent: 0 025 971 (1983-05-01), None
patent: 1400344 (2004-03-01), None
patent: 56-101832 (1981-08-01), None
patent: 11-248055 (1999-09-01), None
patent: 11-286058 (1999-10-01), None
patent: 1750785 (1992-07-01), None
Aftergut Jeff H
Greer Burns & Crain Ltd.
Nova-Duct Technologies Pty Ltd
Simmons David
LandOfFree
Manufacture of flexible tubular duct with improved core... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manufacture of flexible tubular duct with improved core..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of flexible tubular duct with improved core... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2668759