Pipes and tubular conduits – Plural duct – Surrounding radially spaced duct with axially spaced...
Patent
1993-02-23
1995-07-18
Bryant, III, James E.
Pipes and tubular conduits
Plural duct
Surrounding radially spaced duct with axially spaced...
138111, 138114, 2851331, F16L 5912
Patent
active
054332524
ABSTRACT:
The invention concerns a dimensionally stable, elastically bending plastic coaxial tube for fluids, consisting of an outer tube and of at least one inner tube mounted in said outer tube in hermetically fluid-tight but separate manner, said inner tube being held in position in essentially coaxial manner relative to the said outer tube by means of spacers between, and integral with, the constituent tubes, each spacer being integral with only one of the constituent tubes and being so configured and arrayed that the outer tube and the inner tube are freely axially displaceable relative to each other at least to some limited extent.
The coaxial tube is manufactured in that the inner tube is prefabricated, in particular by extrusion, and in that the outer tube is molded in-situ around the cooled inner tube, in particular by coaxial sheath extrusion.
REFERENCES:
patent: 3173196 (1965-03-01), Grimm
patent: 3240233 (1966-03-01), Johnston
patent: 3581776 (1971-06-01), Sheahan
patent: 3756244 (1973-09-01), Kinnear et al.
patent: 4192352 (1980-03-01), Hakamada et al.
patent: 4688890 (1987-08-01), DeMeo et al.
patent: 4729652 (1988-03-01), Sweeney
patent: 4745238 (1988-05-01), Kotthaus et al.
patent: 4840623 (1989-06-01), Quackenbush
patent: 4892442 (1990-01-01), Shoffner
patent: 4906496 (1990-03-01), Hosono et al.
Reichert Uwe
Wolf Franz J.
Bryant III James E.
WOCO Franz-Josef Wolf & Co.
LandOfFree
Fluid containing coaxial tube for control systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid containing coaxial tube for control systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid containing coaxial tube for control systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2415830