Safety helmet with a shell injected from thermoplastics and meth

Details Safety helmet with a shell injected from thermoplastics and meth Safety helmet with a shell injected from thermoplastics and meth

1981-06-22

1984-08-21

Nerbun, Peter P.

Apparel

General structure

2410, 2192, 264257, A42B 302

Patent

active

044661380

ABSTRACT:
The invention relates to a safety helmet having an injected thermoplastics shell, and the method for manufacturing the same. The helmet shell is of composite structure and includes a rigid insert of reinforced resin and an outer casing of injected thermoplastics molded onto the insert which is embedded within the mass of said outer casing and is prestressed by shoulders 5 and 6 provided on overlapping portions 3 and 4 of casing 2, after cooling of the same.

REFERENCES:
patent: 2413823 (1947-01-01), Gits
patent: 4288268 (1981-09-01), Hartung
patent: 4300242 (1981-11-01), Nava

Affiliated with

Also associated with

Rating

Safety helmet with a shell injected from thermoplastics and meth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Safety helmet with a shell injected from thermoplastics and meth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety helmet with a shell injected from thermoplastics and meth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1936105