FR2370448A2
Expired / Lapsed
FR
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Rigid cap for safety helmet - has core consisting of honeycomb of cells separated by intermediate walls
Assignee: COIGNAC PIERRE
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Filing: 1976-11-10
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Granted: —
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Expires: 1996-11-10
Abstract
Abstract The rigid cap of the safety helmet consists of an exterior wall (3) and an interior wall (4) with a core between them. The core consists of tubular cells (6, 7) separated by an intermediate wall (8). The cells open on to the exterior, intermediate or interior walls. The cellular structures can consist of thin metallic sheets in the form of tubes or plates shaped to form a series of cells separated by studs. It can also have several layers of cells separated by several intermediate walls.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 13:32
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42B3/062; A42B3/065; A42B3/10; A42B3/12; A42B3/124
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