F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/25
F16L 3/22 (2006.01) A61M 25/00 (2006.01) F16L 11/22 (2006.01)
Patent
CA 2010210
63198-1076 ABSTRACT An extruded conduit structure for conveying several different fluids is provided comprising a cluster of at least three tubes connected by webs extending between adjacent pairs, the tubes and webs being formed by simultaneous extrusion of a suitable plastic through a suitable die. The outer surface of each of the webs is convexly curved in an arc that is substantial- ly tangential with the outer surfaces of the adjacent pair of tubes. The inner surface of each of the webs is flat relative to the outer surface and forms a cord of such arc whereby each of the webs will be of minimum thickness along each of its junctures with the adjacent webs. This construction substantially eliminates any concave surfaces on the exterior of the conduit within which foreign matter may collect and, because of the thinner wall sec- tions at the juncture of the webs with the adjacent tubes, the webs can be easily stripped along the tubes to expose the tube ends for connection to the apparatus, such as a dental hand piece to which they are to be connected.
A-Dec Inc.
Smart & Biggar
LandOfFree
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