Toneable conduit and method of preparing same

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...

Reexamination Certificate

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Details

C264S171100, C264S172120, C264S272150

Reexamination Certificate

active

07820090

ABSTRACT:
The present invention is a toneable conduit that can transmit a signal and that can therefore be readily detected by toning equipment. In addition, the conduit of the invention can be readily coupled with other conduit to provide extended lengths of conduit. The toneable conduit includes an elongate polymeric tube having a wall with an interior surface, an exterior surface, and a predetermined wall thickness. A channel preferably extends longitudinally within the wall of the elongate polymeric tube and a stabilizing rib extends longitudinally along the interior surface of the wall of the elongate polymeric tube and is located radially inward from the channel. A continuous wire is coincident with the channel in the elongate polymeric tube and is preferably coated with a coating composition that prevents the wire from adhering to the polymer melt used to form the elongate polymeric tube. The present invention further includes methods of making the toneable conduit and methods of coupling a first toneable conduit with a second toneable conduit.

REFERENCES:
patent: 2722237 (1955-11-01), Rosel
patent: 3086557 (1963-04-01), Peterson
patent: 3367370 (1968-02-01), Sherlock
patent: 3555170 (1971-01-01), Petzetakis
patent: 3580983 (1971-05-01), Jackson
patent: 3748371 (1973-07-01), Krook et al.
patent: 4109941 (1978-08-01), Wood et al.
patent: 4817673 (1989-04-01), Zoghby et al.
patent: 5006806 (1991-04-01), Rippingale et al.
patent: 5017873 (1991-05-01), Rippingale et al.
patent: 5045368 (1991-09-01), Cosman et al.
patent: 5051034 (1991-09-01), Goodman
patent: 5061823 (1991-10-01), Carroll
patent: 5114517 (1992-05-01), Rippingale et al.
patent: 5212349 (1993-05-01), Pelzer
patent: 5227103 (1993-07-01), Muschiatti
patent: 5243128 (1993-09-01), Marcoz
patent: RE34701 (1994-08-01), Goodman
patent: 5415242 (1995-05-01), Pelzer
patent: 5532598 (1996-07-01), Clark, Jr. et al.
patent: 5812358 (1998-09-01), Kawai et al.
patent: 5998081 (1999-12-01), Morrison et al.
patent: 6005191 (1999-12-01), Tzeng et al.
patent: 6053457 (2000-04-01), Ozga et al.
patent: 6068426 (2000-05-01), Blanquet et al.
patent: 6092558 (2000-07-01), Maccario
patent: 6105649 (2000-08-01), Levingston et al.
patent: 6131265 (2000-10-01), Bird
patent: 6135159 (2000-10-01), Karl
patent: 6139068 (2000-10-01), Burress et al.
patent: 6139957 (2000-10-01), Craton
patent: 6933438 (2005-08-01), Watts et al.
patent: 2248441 (1974-04-01), None
patent: 159307 (1985-10-01), None
patent: 0449795 (1991-10-01), None
patent: 2 197 419 (1988-05-01), None
patent: 03270787 (1993-04-01), None
patent: 03270788 (1993-04-01), None
patent: 03270789 (1993-04-01), None
patent: 05106779 (1993-04-01), None
patent: 2 246 068 (2000-04-01), None
patent: WO 9615894 (1996-05-01), None
English Translation: WO 96/15894.
International Search Report from corresponding International Application No. PCT/US02/37417 dated Mar. 21, 2003.
Article from www.duraline.com regarding the Tracer Duct product dated Aug. 8, 2001.
Advertisement by Pyramid Industries, Inc. regarding the Toneable Duct product. Publication date unknown but prior to Aug. 7, 2001.

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