Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...
Patent
1983-06-29
1984-12-25
Ball, Michael W.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling rate of movement of molding material or its...
73 379, 156393, 264103, 264173, 2642091, 425113, 4251331, 425140, B29D 2304, B29D 2305, B65H 8100
Patent
active
044903162
ABSTRACT:
An apparatus and method is provided for continuously extruding an elastomeric hose (10) 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 (10) having a controlled internal size is continuously made by extruding an elastomeric material over a first end portion (104) of an internal shaping member (102) and continuously monitoring the flow of air between a gauge member (112) and the internal size of the hose (10). The rate of extrusion is controlled in response to the flow of air between the gauge member (112) and the internal size of the hose (10) 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.
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Ball Michael W.
Burrows J. W.
Caterpillar Tractor Co.
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