Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Plural wear or shaping surfaces mounted for alternative use
Patent
1995-06-07
1997-06-10
Davis, Robert
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
Plural wear or shaping surfaces mounted for alternative use
425292, 425388, 425441, 425DIG58, B29C 5104, B29C 5134
Patent
active
056373309
ABSTRACT:
The invention relates to an apparatus for making hard sided luggage shells and other containers by vacuum forming or pressure forming thermoplastics. An apparatus for making shells and containers with integrally molded frames is disclosed. An apparatus for manufacturing differential pressure formed containers with framed openings, without the need for later attachment of a separate frame element to the molded shell. An apparatus also is disclosed for reducing the undesirable stretching of shell material that occurs during differential pressure forming, particularly the thinning of corner portions of the shell or container. The apparatus of the invention more efficiently utilizes the thermoplastic material by moving material from otherwise offal portions into the molded product. An improved device for severing the offal material from the final product is disclosed.
REFERENCES:
patent: 1319161 (1919-10-01), Miller
patent: 1505421 (1924-08-01), Petrie et al.
patent: 1703132 (1929-02-01), Acheson
patent: 1866483 (1932-07-01), Otten
patent: 2454366 (1948-11-01), Worley
patent: 2822900 (1958-02-01), Kivett
patent: 2878907 (1959-03-01), Kivett
patent: 2949987 (1960-08-01), Greenberg
patent: 3058153 (1962-10-01), Busch
patent: 3290418 (1966-12-01), Best
patent: 3292252 (1966-12-01), Reading
patent: 3292749 (1966-12-01), Reading
patent: 3391765 (1968-07-01), Baker
patent: 3513951 (1970-05-01), Leong et al.
patent: 3577593 (1971-05-01), Jackson
patent: 3586140 (1971-06-01), Kellett et al.
patent: 3640668 (1972-02-01), Brown, Jr. et al.
patent: 3669228 (1972-06-01), Kotkins
patent: 3901640 (1975-08-01), Tigner et al.
patent: 3962010 (1976-06-01), Riou et al.
patent: 4095719 (1978-06-01), Wolf
patent: 4284202 (1981-08-01), Barstow, Jr.
patent: 4288401 (1981-09-01), Keith et al.
patent: 4363617 (1982-12-01), Hirsekorn
patent: 4480979 (1984-11-01), Keith et al.
patent: 4495135 (1985-01-01), White
patent: 4595554 (1986-06-01), Bullock et al.
patent: 4822553 (1989-04-01), Marshall
patent: 4941814 (1990-07-01), Araki et al.
patent: 4993585 (1991-02-01), McMahon
patent: 5044476 (1991-09-01), Seynhaeve
patent: 5128090 (1992-07-01), Fujii et al.
Bromley Robert L.
Kapushion Joseph
Younessian Elliot
Baker Rod D.
Davis Robert
O'Connor Gregory W.
Samsonite Corporation
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