Safety goggles having foamed-in-place face gasket

Details Safety goggles having foamed-in-place face gasket Safety goggles having foamed-in-place face gasket

1996-05-15

1998-06-30

Nerbun, Peter

Apparel

Guard or protector

For wearer's head

2431, 2437, A61F 902

Patent

active

057714991

ABSTRACT:
A face gasket made of a smooth, non-tacky, low durometer, chemically resistant closed cell resin foam is attached onto a goggles frame by injecting the resin into a mold cavity containing a contoured rim portion of the goggles frame. The contoured rim portion is intersected by multiple sprue openings that permit the pressurized resin to flow through the goggles frame and around the contoured rim during molding. The contoured rim portion is embedded within the molded gasket and sprue slugs extend through and fill the openings. The sprue slugs are integrally formed with the main body of the face gasket, thereby defining attachment links that permanently connect the face gasket in splash sealing engagement around the contoured rim and along internal and external sidewall surfaces of the goggles frame.

REFERENCES:
patent: 1306357 (1919-06-01), Shindel
patent: 2406608 (1946-08-01), Joyce
patent: 2918676 (1959-12-01), Matheson
patent: 3638240 (1972-02-01), Militello
patent: 3725953 (1973-04-01), Johnson et al.
patent: 4069516 (1978-01-01), Watkins, Jr.
patent: 4087865 (1978-05-01), Garofalo
patent: 4665570 (1987-05-01), Davis
patent: 4689837 (1987-09-01), Bolle
patent: 4755040 (1988-07-01), Haslbeck
patent: 4796308 (1989-01-01), Bourgeois
patent: 4896380 (1990-01-01), Kamatani
patent: 5216759 (1993-06-01), Hewitt et al.
patent: 5339119 (1994-08-01), Gardner

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