公开(公告)号：US3509673A

公开(公告)日：1970-05-05

申请号：US3509673D

申请日：1968-04-01

申请人： WOODWORK CORP OF AMERICA

发明人： WITKOSKY EDWARD R ,  GOLDER HENRY F

IPC分类号： E04B1/61 ,  E04B2/74 ,  E04B2/08 ,  E04B2/72 ,  E04H1/00

CPC分类号： E04B1/6179 ,  E04B1/617 ,  E04B2/7409

公开(公告)号：US3573145A

公开(公告)日：1971-03-30

申请号：US3573145D

申请日：1969-07-03

申请人： WOODWORK CORP OF AMERICA

发明人： WITKOSKY EDWARD R ,  GOLDER HENRY F

IPC分类号： E04B1/82 ,  E04B1/84 ,  E04B2/74 ,  E04C2/38 ,  E04B1/86

CPC分类号： E04C2/386 ,  E04B1/8227 ,  E04B2/7409 ,  E04B2001/8452 ,  Y10T428/239

摘要： A PORTABLE ROOM DIVIDER PANEL OF HIGH SOUND ATTENUATING CHARACTERISTICS, THE PANEL HAVING A WOOD FRAME. A SHEET OF LOW PRESSURE LAMINATE HARDBOARD BONDED TO EACH FACE OF THE FRAME TO FORM A CHAMBER, A DECORATIVE SKIN OF HIGH PRESSURE LAMINATE BONDED TO EACH SHEET OF HARDBOARD, AND A CORE IN THE CHAMBER CONSISTING OF THREE LAMINAR MINERAL FIBER BOARDS OF WHICH A ONE INCH THICK SECTION WEIGHT ABOUT 0.9 POUND PER SQUARE FOOT, THE BOARDS BEING SECURED TO ONE ANOTHER BY WIDELY SPACED SPOTS OF ADHESIVE WHICH OCCUPY A MINOR FRACTION OF THE SURFACE AREA OF THE CORE. THE CORE FILLS THE CHAMBER AND AFFORDS STRUCTURAL SUPPORT FOR THE HARDBOARD SHEETS WITHOUT BEING COMPRESSED BY THE SHEETS. A FOUR BY EIGHT FOOT PANEL WHICH IS ONE AND THREE-QUARTERS INCH THICK AND WEIGHS 125 POUNDS HAS AN OVERALL SOUND TRANSMISSION CLASS OF ABOUR 43 WHEN TESTED IN ACCORDANCE WITH ASTM SPECIFICATION E90-66T.

公开(公告)号：US3117353A

公开(公告)日：1964-01-14

申请号：US3454060

申请日：1960-06-07

申请人： WOODWORK CORP OF AMERICA

发明人： DONALD EDWARDS

IPC分类号： E04F13/08

CPC分类号： E04F13/0835 ,  Y10T403/73