Blow molding trimming

Details Blow molding trimming Blow molding trimming

2006-02-21

2006-02-21

Dexter, Clark F. (Department: 3724)

Cutting

Processes

With subsequent handling

C083S054000, C083S078000, C083S451000, C083S455000, C083S465000, C083S582000, C083S745000, C083S824000, C083S946000, C082S047000, C082S070200, C082S076000

Reexamination Certificate

active

07000512

ABSTRACT:
A blow molded container (10) having a trimmed nonround opening (12) is blow molded from a preform (36) and then positioned by a positioner (50) of a nonround trimmer (16) that includes a rotary driven arm assembly (56) having a knife holder (60). A guide (66) guides the knife holder (60) in a nonround path to perform the trimming.

REFERENCES:
patent: 1055970 (1913-03-01), Erickson
patent: 2752970 (1956-07-01), Tupper
patent: 3091145 (1963-05-01), Manganelli
patent: 3520010 (1970-07-01), Dockery
patent: 3608406 (1971-09-01), Paysinger et al.
patent: 3823626 (1974-07-01), Bakewell
patent: 3888146 (1975-06-01), Tomenceak
patent: 4368827 (1983-01-01), Thompson
patent: 5160340 (1992-11-01), Gary et al.
patent: 5167968 (1992-12-01), Dunlap et al.
patent: 6367360 (2002-04-01), Dunlap et al.

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