Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With coupling between charger and mold
Patent
1984-11-05
1986-05-27
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With coupling between charger and mold
425117, 425122, 425127, 425129R, B29C 4503
Patent
active
045913307
ABSTRACT:
Moulding equipment in which cooperable male and female connectors of a mould and a dispensing container for mouldable material have means to lock them together. This includes a locking member which is manually moveable in pivotal fashion upon one connector into and out of a locking position with the other connector.
Opposing surfaces of the locking member and the other connector relatively move across each other during movement of the locking member while offering sufficiently low resistance to movement to allow for manual operation. During transfer of the material into the mould, the opposing surfaces are urged together by moulding pressure to increase resistance to movement of the locking member out of the locking position. In preferred constructions, the locking member has a cam surface which ensures the need for a progressively increasing unlocking force to enable release of the locking member during transfer of the mouldable material.
REFERENCES:
patent: 1646873 (1927-10-01), Richards
patent: 1889133 (1932-11-01), Pfefferle
patent: 2770474 (1956-11-01), Krapp
patent: 2976400 (1961-03-01), Steber
patent: 3526417 (1970-09-01), Kumiller
patent: 3982563 (1976-09-01), Kowal et al.
patent: 4091062 (1978-05-01), Nelson
patent: 4111470 (1978-09-01), Welcker
Brown Peter A.
Charlebois Leonard J.
Austin R. J.
Hoag Willard E.
Northern Telecom Limited
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