公开(公告)号：US3540967A

公开(公告)日：1970-11-17

申请号：US3540967D

申请日：1968-01-12

Applicant: BALSA DEV CORP

Inventor： SHOOK GERALD D ,  LEVINE ROBERT S

IPC: B29C70/00 ,  B32B27/00 ,  B32B31/00 ,  G05G17/00

CPC classification number: B29C70/00 ,  B29K2309/08 ,  B32B27/00 ,  Y10T156/1052 ,  Y10T156/1082 ,  Y10T156/133 ,  Y10T156/1734

公开(公告)号：US3376185A

公开(公告)日：1968-04-02

申请号：US38914964

申请日：1964-08-12

Applicant: BALSA DEV CORP

Inventor： SHOOK GERALD D ,  LEVINE ROBERT S

IPC: B63B5/24

CPC classification number: B63B5/24 ,  Y10T156/1077 ,  Y10T156/133 ,  Y10T156/1734 ,  Y10T156/1759 ,  Y10T428/163 ,  Y10T428/24612 ,  Y10T428/24694

公开(公告)号：US3669815A

公开(公告)日：1972-06-13

申请号：US3669815D

申请日：1971-02-10

Applicant: BALSA DEV CORP

Inventor： DESAI RAMESH R ,  DOHN GEORGE D

IPC: F17C3/02 ,  F17C13/00 ,  B65D25/18

CPC classification number: F17C3/022 ,  F17C13/001 ,  F17C2201/0119 ,  F17C2201/032 ,  F17C2201/052 ,  F17C2203/012 ,  F17C2203/0333 ,  F17C2203/0341 ,  F17C2203/0345 ,  F17C2203/0354 ,  F17C2203/0358 ,  F17C2203/0604 ,  F17C2203/0648 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2260/011 ,  F17C2260/033 ,  F17C2260/036 ,  F17C2270/011 ,  F17C2270/0147 ,  F17C2270/0171 ,  F17C2270/0173 ,  Y10S220/901 ,  Y10S220/902

Abstract: A STRUCTUREAL LIGHT-WEIGHT PANEL OF HIGH STRENGTH, HAVING THERMAL INSULATION PROPERTIES THAT RENDER THE PANEL PARTICULARLY SUITABLE FOR CRYOGENIC AND ELEVATED TEMPERATURE APPLICATIONS. THE PANEL IS CONSTITUTED BY A COMPOSITE CORE BONDED TO A CARRIER MEMBRANE OR LAMINATED TO FACING SKINS, THE CORE INCLUDING AT LEAST ONE LAYER FORMED BY A SERIES OF BALSA BEAMS IN SPACED PARALLEL RELATION, THE SPACING BETWEEN THE BEAMS BEING FILLED WITH SLABS OF FOAM PLASTIC MATERIAL WHOSE K-FACTOR IS SIMILAR TO THAT OF BALSA, WHEREBY THE OVERALL THERMAL INSULATING CHARACTERISTICS OF THE COMPOSITE CORE ARE EFFECTIVELY EQUIVALENT TO THAT OF A HOMOGENEOUS CORE COMPOSED ENTIRELY OF FOAM PLASTIC MATERIAL, WHEREAS THE STRUCTURAL CHARACTERISTICS OF THE COMPOSITE CORE ARE FAR SUPERIOR THERETO.

公开(公告)号：US3616112A

公开(公告)日：1971-10-26

申请号：US3616112D

申请日：1969-08-29

Applicant: BALSA DEV CORP

Inventor： DESAI RAMESH R

IPC: E04C2/24 ,  B32B3/18

CPC classification number: B32B21/10 ,  B32B5/26 ,  B32B7/12 ,  B32B2262/101 ,  E04C2/24 ,  Y10T156/1093 ,  Y10T428/164 ,  Y10T428/249959

Abstract: A tessellated contour core blanket for use in structural laminates, the blanket being constituted by an array of blocks, preferably of end-grain balsa, adhesively secured to an open mesh scrim, the exposed ends of the blocks being sealed to prevent the admission therein of moisture or resin, whereby the blanket may be stored for prolonged periods without blanket warpage, and the blanket may thereafter be laminated to facing skins without printout effects.