Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...
Patent
1980-05-18
1981-10-06
Lowe, James B.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling rate of movement of molding material or its...
264 402, 264268, 425110, 425150, 425166, 425256, 425809, B29C 1302
Patent
active
042935105
ABSTRACT:
A method and apparatus for molding and curing liners in cap closures includes a molding head having a plurality of molding stations, a feeding mechanism for feeding unlined caps with charges of lined material to the molding head and a take-off mechanism for removing the completed liner. The feeding mechanism consists of a dispensing unit which is capable of dispensing more than one-thousand charges of material per minute and includes a gun having a lining compound receiving chamber with a needle reciprocated therein. The needle is normally biased to a closed position and is electrically moved to an open position through a solenoid and a photosensing mechanism which accurately senses the position of a rotating wheel of the feeding mechanism.
REFERENCES:
patent: 2954585 (1960-10-01), Simpson
patent: 3439718 (1969-04-01), Wright et al.
patent: 3811601 (1974-05-01), Reighard et al.
patent: 3963396 (1976-06-01), Shotbolt
George Robert W.
Miller Casper W.
Rapey Kenneth
Lowe James B.
National Can Corporation
Rath Ralph R.
Stenzel Robert A.
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