Slip-cased core-forming mandrel

Details Slip-cased core-forming mandrel Slip-cased core-forming mandrel

B - Operations, Transporting

28

B

25/121, 25/58

B28B 1/26 (2006.01) B28B 7/28 (2006.01)

Patent

CA 1117744

Docket No.: 1201-113 Inventor : Jose A. Mayrl For : SLIP-CASED CORE-FORMING MANDREL ABSTRACT OF THE DISCLOSURE In forming settable mix into hollow-cored articles, cantilevered hollow core-forming mandrels are disposed in a mold station, each mandrel being wrapped in a flexible, non-porous casing formed as an endless loop slip-case which encloses the exterior and interior mandrel walls. Movement of the mix moves the casing along the longitudinal mandrel axis rotating it around the exterior and interior mandrel walls, thereby preventing the accretions of settable material on the mandrel.

321179

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