Boots – shoes – and leggings
Patent
1985-04-24
1987-02-03
Harkcom, Gary V.
Boots, shoes, and leggings
364194, 364468, 364300, 425175, G06F 1546, G05B 1900, B22D 1722
Patent
active
046412700
ABSTRACT:
The process comprises the modelling of the piece and its negative in three dimensions, determination of a main joint plane of the two mold parts, searching for the unstrippable zones by simulating a relative translational movement between the model of the piece and the two parts of the model of its negative defined by the reference plane and by determining the contact zones between the piece and the negative, a determination of the offset joint plane in successive sections of the model of the negative including the zones, modelling of the mobile and fixed impressions as a function of the previously determined joint planes, and manufacture of the mold whose fixed and mobile parts comprise joint planes and impressions in accordance with those previously determined.
REFERENCES:
patent: 3723585 (1973-03-01), Nussbaum
patent: 3867078 (1975-02-01), Porter
patent: 4181954 (1980-01-01), Rosenthal et al.
patent: 4368020 (1983-01-01), Brown et al.
patent: 4393450 (1983-07-01), Jerard
patent: 4409718 (1983-10-01), Pryor
patent: 4430718 (1984-02-01), Hendren
patent: 4452590 (1984-06-01), Trell
patent: 4558420 (1985-12-01), Gerber
Lalloz Paul
Vo Hung A.
Drucker William A.
Harkcom Gary V.
La Telemecanique Electrique
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