Plastic article or earthenware shaping or treating: apparatus – With mechanical means forming or expanding pores
Patent
1991-05-30
1993-02-23
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
With mechanical means forming or expanding pores
264 402, 264 405, 264310, 26432811, 425147, 425148, 425150, 425435, 425576, B29C 4533
Patent
active
051888459
ABSTRACT:
Multiaxis rotational molding apparatus includes a raw material supplying portion including a plurality of reservoirs connected independently with a mixing portion through conduits. A supporting portion includes a plurality of frame members disposed between upstanding end sections and rotatably supported thereon. A molding portion rotatably supported within the frame members includes at least one rotatable mold assembly with at least two separable mold sections. The mold sections include at least two optical fiber elements extending through the mold sections with one end of each optical fiber element terminating at a mold cavity forming surface of a mold section and an opposite end of each optical fiber element terminating at a remote second surface thereof. A signal generator disposed adjacent a remote surface end of one optical fiber element and a signal sensor disposed adjacent a remote surface end of another optical fiber element. A control portion includes circuitry transmitting signals from the sensor for comparison with programmable memory to control mold assembly frame rotators in a preselected multiaxis mold rotational profile. Also, a method of forming structures, particularly mold sections, with the above apparatus.
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Heitbrink Tim
Urban Arthur L.
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