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Title: US4300242: Molded reinforced article and method
[ Derwent Title ]


Country: US United States of America

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5 pages

 
Inventor: Nava, Pier L.; Bergamo, Italy
Testa, Carlo; Somma Lombardo, Italy
Frigerio, Davide; Gallarate, Italy

Assignee: Nava; Pier Luigi, Bergamo, Italy
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Published / Filed: 1981-11-17 / 1980-02-19

Application Number: US1980000122546

IPC Code: Advanced: A42B 3/06; A42C 2/00; A62B 18/04; B29C 57/00; B29C 67/00; B29C 70/00; B29C 70/06; B29C 70/22; B29C 70/36; B29C 70/56; B29D 22/00; B29D 99/00; B32B 5/00; B32B 5/02; B32B 5/26; B32B 37/00; B29K 105/06;
IPC-7: A42B 3/02;

ECLA Code: A42B3/06C2; A42C2/00; B29C70/22A; B29C70/36; B29C70/56; B29D22/00; L29K105/06; L29K105/08B; L29K105/08B6; L29L31/48B2B;

U.S. Class: Current: 002/412; 002/425;
Original: 002/412; 002/425;

Field of Search: 002/410,412,425

Priority Number:
1979-03-30  IT1979000021465

Abstract:     A process for manufacturing caps, such as helmets, of reinforced resin, the reinforcement of which is comprised of a tricot or net-like material. The process comprises shaping the textile reinforcement, made of a plurality of layers of two or more textile caps to conform to the male component of a mold having complementary male and female components, inserting the male part, with the textile reinforcement, into the complementary female part of the mold, imparting a controlled tension to said textile reinforcement and injecting resin, in a liquid state, into the mold to envelope said textile reinforcement, and allowing said resin to solidify to thus obtain the cap, the reinforcement of which is enveloped in the resin in a state of tension. An impact resistant resin structure in the form of a cap is provided by said process.

Attorney, Agent or Firm: Ladas & Parry ;

Primary / Asst. Examiners: Rimrodt, Louis;

INPADOC Legal Status: None          Buy Now: Family Legal Status Report

Family: Show 24 known family members

First Claim:
Show all 7 claims
We claim:     1. A process for manufacturing caps, such as helmets, of reinforced resin, the reinforcement of which is comprised of a tricot or net-like material, said process comprising:
  • shaping, in the form of a textile cap, the textile reinforcement;
  • superimposing and binding to each other a plurality of layers, comprised of two or more textile caps, adapted to form the textile reinforcement, to conform to the male component of a mold having complementary male and female components;
  • inserting the male part, with the textile reinforcement into the complementary female part of the mold, imparting a controlled tension to said textile reinforcement and injecting the resin, in the liquid state, into the mold to envelope said textile reinforcement which is subjected to tension;
  • allowing said resin to solidify to thus obtain the cap, the reinforcement of which is enveloped in the resin in a state of tension.


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Forward References: Show 17 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (17)   |   Backward references (8)   |   Citation Link

Buy
PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 6pp US2115065  1938-04 Dym   Headger
Get PDF - 6pp US2123275* 1938-07 Dym    
Get PDF - 4pp US2312227  1943-02 Yant   Protective hat
Get PDF - 8pp US2532442  1950-12 Daly   Molded article
Get PDF - 5pp US2610322* 1952-09 Daly    
Get PDF - 5pp US2746049  1956-05 Hudson   Helmet
Get PDF - 3pp US2766453  1956-10 Frieder et al.   Plastic impregnated fabric material and method for making same
Get PDF - 4pp US3353187* 1967-11 Lastnik et al.    
  * some details unavailable
       
Foreign References: None

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