Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article
Patent
1982-11-22
1984-12-18
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Making hole or aperture in article
114347, 264275, 264310, B29C 504
Patent
active
044890281
ABSTRACT:
The kayak improvements include a method for embedding a nut in the material of a kayak hull during a rotational molding process and structure for use with such an embedded nut to hold a frame in place.
REFERENCES:
patent: 2918703 (1959-12-01), Beal
patent: 3299501 (1967-01-01), Cox
patent: 4023257 (1977-05-01), Wright
patent: 4143193 (1979-03-01), Rees
patent: 4214670 (1980-07-01), Berger et al.
patent: 4357293 (1982-11-01), Williamson
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