Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1996-11-25
1998-09-29
Bell, James S.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
156169, 156170, 156172, 156173, 156180, 428 368, 428 3691, B32B 108
Patent
active
058143866
ABSTRACT:
The inventions relate to the field of machine manufacturing and more specifically, to shell-type construction of base members used in aviation engineering and rocketry, which operate under conditions of combined stressed state, to the methods of and mandrels for their manufacture.
A load-carrying tube-shell comprises a cellular framework 1 made of spiral and annular strips 4, 5 crossing each other to define layers 3 of systems repeated over the thickness of the wall thereof so that stiffening ribs 6, 7 with criss-crosses 8, 9, 10 are thus formed, and outer coating layers 2 respectively made of unidirectional filaments 11 bound by a cured polymeric binder 12. Damping-absorbing layers 14 of resilient-elastic material such as rubber or polyurethane are disposed between the layers 3.
A method of the manufacture of the tube-shell comprises a step of introducing intermediate continuous forming strips 20 placed beneath the layers 4, 5 laid down under tension.
The disclosed mandrel comprises intermediate forming strips 20 of resilient-elastic material doubled with the strips 4, 5 disposed in mutually crossing slots 17, 18, 19.
REFERENCES:
patent: 3083864 (1963-04-01), Young
patent: 4137354 (1979-01-01), Mayes, Jr.
patent: 4278485 (1981-07-01), Hamm
patent: 4284679 (1981-08-01), Blad
Artjukhov Mikhail Sergeevich
Bunakov Vladimir Alexandrovich
Razin Alexandr Fredeorovich
Vasiliev Valery Vitalievich
Bell James S.
Crismb-Cat
McDonnell Douglas Corporation
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