Paper making and fiber liberation – Apparatus – Foraminous forming mold for discrete articles
Patent
1993-02-16
1997-08-12
Lamb, Brenda A.
Paper making and fiber liberation
Apparatus
Foraminous forming mold for discrete articles
162410, 162411, D21J 300
Patent
active
056561350
ABSTRACT:
An improved flexible manufacturing process for making molded fiber products uses a molding machine provided with a large number of ports for mounting a variety of molds. Quick release mold attachments permit rapid changeover of production output. The molds used are designed to have a predetermined total height, and platen stops maintain this design separation during transfer of the molded product. An expanded stock chest is provided to permit a higher pulp usage rate. Separate positive air supply lines are provided for the different transfer mold sites. Using these separate lines, a novel air volume and flow control method is provided to control the volume of air applied to release products from transfer molds, permitting manufacture of a variety of complex structures. The air flow controls permit control of both the rate of flow and the duration of the selected rate of flow of positive pressure air, thus providing total volume control. A variable height conveyor is provided to receive molded structures and products dropped from the transfer molds of the upper platen to accommodate a variety of widths and depths of products in a particular run. Separate control of drying air flow in a multiple stage air dryer is provided to permit adjustment of the drying process to accommodate a variety of molded product configurations.
REFERENCES:
patent: D143042 (1945-11-01), Shepard
patent: D150758 (1948-08-01), De Reamer
patent: D249638 (1978-09-01), Chadbourne
patent: D253506 (1979-11-01), Vigue
patent: D254956 (1980-05-01), Gilley
patent: D339983 (1993-10-01), Breton et al.
patent: 773671 (1904-11-01), Palmer
patent: 1218001 (1917-03-01), Rodwell
patent: 1409591 (1922-03-01), Schavoir
patent: 1893497 (1933-01-01), Gray
patent: 2564729 (1951-08-01), Shepard
patent: 2575192 (1951-11-01), Shephard
patent: 2704268 (1955-03-01), Chaplin
patent: 2754725 (1956-07-01), Emery
patent: 2774473 (1956-12-01), Williams
patent: 2808189 (1957-10-01), Williams
patent: 2813652 (1957-11-01), Parsons
patent: 2996118 (1961-08-01), Wells
patent: 3005491 (1961-10-01), Leitzel
patent: 3028065 (1962-04-01), Reifers
patent: 3129866 (1964-04-01), Wade, Jr.
patent: 3132991 (1964-05-01), Hornbostel et al.
patent: 3163312 (1964-12-01), Chaplin
patent: 3205128 (1965-09-01), Justus
patent: 3243096 (1966-03-01), Crabtree
patent: 3282458 (1966-11-01), Rudd
patent: 3286833 (1966-11-01), Chadbourne
patent: 3305434 (1967-02-01), Bernier
patent: 3306813 (1967-02-01), Reifers
patent: 3306815 (1967-02-01), Mayne
patent: 3327918 (1967-06-01), White
patent: 3343702 (1967-09-01), Leitzel
patent: 3351266 (1967-11-01), Reifers
patent: 3362605 (1968-01-01), Bixler
patent: 3375966 (1968-04-01), Crabtree
patent: 3477564 (1969-11-01), Crabtree
patent: 3553078 (1971-01-01), Aoki
patent: 3575801 (1971-04-01), Friday
patent: 3647132 (1972-03-01), Crabtree
patent: 3677201 (1972-07-01), Chadbourne
patent: 3695479 (1972-10-01), Crabtree
patent: 3700096 (1972-10-01), Reifers
patent: 3702100 (1972-11-01), Wharton
patent: 3708084 (1973-01-01), Bixler et al.
patent: 3718274 (1973-02-01), Reifers et al.
patent: 3732976 (1973-05-01), Bessett et al.
patent: 3765592 (1973-10-01), Chadbourne
patent: 3778516 (1973-12-01), Cornelius
patent: 3793138 (1974-02-01), Rohrer
patent: 3843009 (1974-10-01), Emery
patent: 3850793 (1974-11-01), Hornbostel et al.
patent: 3885728 (1975-05-01), Gilley
patent: 3904103 (1975-09-01), Chadbourne
patent: 3922191 (1975-11-01), Witt et al.
patent: 4014739 (1977-03-01), Granberg
patent: 4059219 (1977-11-01), Reifers et al.
patent: 4087040 (1978-05-01), Bessett et al.
patent: 4306851 (1981-12-01), Thune
patent: 4394214 (1983-07-01), Bixler et al.
patent: 4427730 (1984-01-01), Robbins et al.
patent: 4448344 (1984-05-01), Lord et al.
patent: 4480781 (1984-11-01), Emery et al.
patent: 4742916 (1988-05-01), Galea
patent: 4792045 (1988-12-01), Creaden
patent: 4883415 (1989-11-01), Zalvadori
patent: 5096650 (1992-03-01), Renna
patent: 5244094 (1993-09-01), Graff et al.
patent: 5316173 (1994-05-01), Emery
patent: 5335770 (1994-08-01), Baker et al.
Operating Manual for Tomlinson "T" Pulp Plant (1990).
Operating Manual for Tomlinson Compact 200 Pulp Moulding Machine (1990).
"No Flash In The Pan" Financial Times, May 28, 1992.
Exhibit W, Singh, Ph.D., S. Paul, et al., "A Comparison Between Various Package Cushioning Materials", IoPP Technical Journal, pp. 28-36 (Winter 1992).
Tomlinson Group Information; Brochures which disclose Tomlinson Emery pulp moulding machines of the general type modified in the present invention. (1990).
"Closing in on Alternative to Polystyrene Packaging" Portland Press Herald, Tuesday, Apr. 30, 1991.
"Maine Company Cushions Products in Mounlded Pulp" Packaging, Jul. 1991 Article.
Lamb Brenda A.
Moulded Fibre Technology, Inc.
Sixbey Daniel W.
Smith Evan R.
LandOfFree
Molded product manufacturing apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Molded product manufacturing apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molded product manufacturing apparatus and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-157163