B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/719
B29C 47/92 (2006.01) B29C 47/02 (2006.01) B29C 47/06 (2006.01)
Patent
CA 1203960
-15- Abstract of the Disclosure Apparatus and Method for Controlling Internal Size of An Extruded Hose An apparatus and method is provided for continuously extruding an elastomeric hose having a controlled internal size. A controlled internal size is necessary in order to mount various types of couplings to the hose. Other hose making processes require extruding the hose on a mandrel in order to control the internal size. The use of mandrels restrict hose length and require additional floor space due to the lengthy mandrels. An extruded hose having a controlled internal size is continuously made by extruding an elastomeric material over a first end portion of an internal shaping member and continuously monitoring the flow of air between a gauge member and the internal size of the hose. The rate of extrusion is controlled in response to the flow of air between the gauge member and the internal size of the hose changing from a predetermined range. The continuous monitoring of the internal size adjacent the internal shaping member and adjusting the rate of extrusion in response thereto produces a continuous hose with a controlled internal size without the use of long mandrels.
453118
Caterpillar Tractor Co.
Kirby Eades Gale Baker
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