Method of molding a sewing machine frame of fiber reinforced com

Details Method of molding a sewing machine frame of fiber reinforced com Method of molding a sewing machine frame of fiber reinforced com

1982-06-04

1985-01-15

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Orienting or aligning solid particles in fluent matrix material

2643282, 26432812, 26432818, B29D 302

Patent

active

044938080

ABSTRACT:
A sewing machine bed having main and open channel sections is molded of glass reinforced thermosetting plastic composition which is injected into the mold through a side gate located opposite the juncture of the main and channel sections providing advantageous fiber orientation resulting in dimensional stability and freedom from warpage.

REFERENCES:
patent: 4102831 (1978-07-01), Osgood
patent: 4203732 (1980-05-01), Phaal
"How and Why to Use Glass-Reinforced Injection", Modern Plastics, Mar. 1958, pp. 100-102, 192, 194.

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