[특허]Reinforced foam cores and method and apparatus of production

[미국특허] Reinforced foam cores and method and apparatus of production 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-003/10 B32B-003/18
출원번호	US-0775403 (1996-12-30)
발명자 / 주소	Day Stephen W.
출원인 / 주소	Webcore Technologies, Inc.
대리인 / 주소	Jacox, Meckstroth & Jenkins
인용정보	피인용 횟수 : 86 인용 특허 : 22

초록 ▼

Rigid foam pieces or boards and alternating porous fibrous web sheets are adhered to form core panels or billets. Porosity is maintained in the webs for forming integral structural ties by absorbing resin applied under differential pressure to the webs and to overlying sandwich panel skins. Beveled foam recesses adjacent web edge portions form structural resin fillets, and protruding edge portions form expanded connections to the skins. Core panels with intersecting webs form enhanced panels. Boards or core panels and web sheets arranged in inclined stacks form second core panels having webs intersecting panel edges or faces at acute angles. Boards of alternating different physical properties and web sheets are bonded to form reinforced panels having differing interior and exterior densities. Compressible foam panels are used in place of or with web sheets to make bendable core panels. Foam between web edge portions is recessed for bonding a settable material to the edge portions.

대표청구항 ▼

[ I claim:] [1.] A reinforced foam core panel assembly having opposite sides formed by corresponding rigid skins, comprising a core panel of closed cell plastics foam material having opposite side surfaces adjacent said skins, a plurality of spaced fibrous reinforcing members extending through said core panel, each of said reinforcing members having fibers extending through said core panel and having portions terminating adjacent said opposite side surfaces of said core panel, said foam material confining said reinforcing members while maintaining voids between said fibers throughout said reinforcing members within said foam material, a curable adhesive resin attaching said skins to said side surfaces of said core panel of foam material and to said adjacent portions of said reinforcing members, the same said resin also extending continuously through said voids between said fibers and through said core panel, and all of said resin being simultaneously cured to form integrally connected resin and separate tie members integrally connecting said skins.

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[미국특허] Reinforced foam cores and method and apparatus of production 원문보기

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