Invention Grant
- Patent Title: Method of making a helmet
- Patent Title (中): 制作头盔的方法
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Application No.: US13978153Application Date: 2012-01-13
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Publication No.: US09050756B2Publication Date: 2015-06-09
- Inventor: Joseph D Trentacosta , William Charles Walker
- Applicant: Joseph D Trentacosta , William Charles Walker
- Applicant Address: US DE Wilmington
- Assignee: E I DU PONT DE NEMOURS AND COMPANY
- Current Assignee: E I DU PONT DE NEMOURS AND COMPANY
- Current Assignee Address: US DE Wilmington
- International Application: PCT/US2012/021242 WO 20120113
- International Announcement: WO2012/097252 WO 20120719
- Main IPC: G06F19/00
- IPC: G06F19/00 ; B29C65/72 ; A42C2/00 ; A42B3/00
Abstract:
This invention relates to a method of making a helmet using a preform subassembly with arms which have an area that matches a perimeter profile of a specified geometric shape. By use of the area matching perform with arms, the thickness of the helmet is more uniform, seams in the preform can be minimized, and the ballistic resistance of the resulting helmet can be increased.
Public/Granted literature
- US20130283578A1 METHOD OF MAKING A HELMET Public/Granted day:2013-10-31
Information query
