Metal working – Method of mechanical manufacture – Structural member making
Patent
1989-12-14
1992-05-12
Echols, P. W.
Metal working
Method of mechanical manufacture
Structural member making
298973, 294191, 29447, 156222, 1563082, 52144, 428121, 428126, 428193, 428284, B23P 1700
Patent
active
051115794
ABSTRACT:
A formed panel construction and method are provided for portable acoustic partitions of the type which are assembled and configured to create workstations in open office plans. Each partition panel includes a freestanding, open frame with a pair of formed cover panels detachably connected to the opposite sides of the frame to enclose the partition. Each cover panel comprises a laminated composite sheet, which includes a sound absorbant backing sheet constructed from heat fusible fibers, and an overlying upholstery sheet with a finished exterior surface. The composite sheet is heated to soften or plasticize the heat fusible fibers, and is compressed and molded while heated to a predetermined geometrically solid shape, such as a five-sided panel having a flat face and four marginal flanges extending at an angle therefrom. The heat and compression process interconnects the various layers of the composite sheet, and the molded shape creates a one-piece, frameless acoustic cover panel with a stiffness or rigidity which facilitates manual handling, and suspension attachment to the frame without sagging.
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Bryant David P.
Echols P. W.
Steelcase Inc.
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