Boot and shoe making – Processes – Miscellaneous parts
Patent
1987-10-15
1989-04-04
Meyers, Steven N.
Boot and shoe making
Processes
Miscellaneous parts
A43D 104, A43D 100
Patent
active
048172227
ABSTRACT:
A method and apparatus for making shoe lasts, involves digitizing on the fly a large number of sample points on the outer surface of a model last representing a particular shoe style to produce a model last digital file representing the three-dimensional surface contour of the respective model last; grading the model last digital file to produce one or more graded last digital files each representing a different last size of the respective shoe style; and utilizing each of the graded last digital files to produce a graded shoe last of the respective shoe style. The invention may also be utilized for making graded components of shoes, and for modifying shoe styles or creating new shoe styles by CAD/CAM techniques.
REFERENCES:
patent: 2009471 (1935-07-01), Braver et al.
patent: 3391392 (1986-07-01), Doyle
patent: 3696456 (1972-10-01), Dunham et al.
patent: 4412364 (1983-11-01), Mateo
patent: 4452057 (1984-06-01), Davies et al.
patent: 4458689 (1984-07-01), Sorenson et al.
patent: 4541054 (1985-09-01), Peck et al.
patent: 4558420 (1985-12-01), Gerber
patent: 4598376 (1986-07-01), Burton et al.
"The Story of Lasts" .COPYRGT.1948 issued by National Shoe Manufactures Association.
Barish Benjamin J.
Brown Donald
Meyers Steven N.
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