Method for producing drawing stencils

Details Method for producing drawing stencils Method for producing drawing stencils

1978-10-11

1980-09-30

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

264264, 264274, 264275, B29C 604

Patent

active

042255481

ABSTRACT:
A process for producing a drawing stencil characterized in that a plastic border edging is applied, by a spray or injection molding, upon a preformed stencil sheet. A further feature disclosed is the use of a lubricated interface between a border edging and a stencil sheet, to relieve stress buildup and resultant distortion of the stencil.

REFERENCES:
patent: 2364512 (1944-12-01), Bower
patent: 3228686 (1966-01-01), Faulkner, 3rd
patent: 3247550 (1966-04-01), Haines, Jr.
patent: 3415709 (1968-12-01), Santangelo
patent: 3591669 (1971-07-01), Membry
patent: 4011819 (1977-03-01), Kessler
patent: 4091068 (1978-05-01), Karas
patent: 4093249 (1978-06-01), Chambers
Plastics Engineering Handbook, third ed., Reinhold Publishing Corp., New York, 1960, pp. 347, 348, 353, 354.

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