Method of making fiber reinforced protective headgear

Details Method of making fiber reinforced protective headgear Method of making fiber reinforced protective headgear

1974-12-06

1977-08-09

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264259, 264266, 264274, 264279, 264328, B29D 302, B29F 100

Patent

active

040410315

ABSTRACT:
Method of making protective headgear including forming a peak or visor portion and thereafer injection molding a fiber-filled resin onto the peak portion to form a shell portion, the shell portion resin containing 10-40% by weight of fibers at least 5 mm in length.

REFERENCES:
patent: 2312227 (1943-02-01), Yant
patent: 2337550 (1943-12-01), Crosby
patent: 2698434 (1955-01-01), Davia
patent: 2931042 (1960-04-01), Austin
patent: 3164864 (1965-01-01), Kobayashi
patent: 3302242 (1967-02-01), Morin
patent: 3426121 (1969-02-01), Faulkner
patent: 3514366 (1970-05-01), Allport

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