Title:
ADHESIVELY SECURED FRAME ASSEMBLY, AND METHOD AND APPARATUS FOR FABRICATING THE SAME
Document Type and Number:
WIPO Patent Application WO2001014682
Kind Code:
A9
Abstract:
A frame (30) includes a plurality of screen bar segments (30a-30d). To form the screen bar, a flat malleable strip is provided. The strip is roll-formed to form a tube having a tensioning step (32) on its face. The tensioning step (32) extends along a length of the tube. The tensioning step has a mounting surface (32a), which may be the bottom of the tensioning step (32). A hot-melt adhesive (36) is applied to the mounting surface (32a). The screen (34) is spread across the frame (30), so that the screen (34) extends over the mounting surface (32a) of each screen bar segment (30a-30d). The screen (34) is secured to the face of the frame with an adhesive (36) at a plurality of positions across a length of the mounting surface (32a) of a least one screen bar segment (30a-30d). The adhesive (36) may be a hot meal adhesive. The screen (34) is inserted with a plurality of pins (54) to intermittently suspend the screen (34) in the adhesive (36) across the length of the screen bar segment (30a-30d). An apparatus (100) for securing the screen (34) to the screen bar segment (30a-30d) includes a support surface (32a) that holds a screen bar segment (30a-30d). A heat source applies heat directly to the adhesive (36) to melt the adhesive (36) on the screen bar segment (30a-30d). The apparatus (100) is capable of actuating the pins (54) to cause the screen (34) to contact the adhesive (36). The pins (54) may embed the screen deeply enough to contact the mounting surface (32a) beneath the pins (54), while the screen (34) is intermittently suspended in the adhesive (36) between pins (54).
Inventors:
WYLIE DOUGLAS (CA)
CAO ZHIPING (CA)
SHUPAK ERNEST (CA)
RAVINDRAN SAJ (CA)
SZABO JOHN (CA)
CAO ZHIPING (CA)
SHUPAK ERNEST (CA)
RAVINDRAN SAJ (CA)
SZABO JOHN (CA)
Application Number:
PCT/IB2000/001716
Publication Date:
August 29, 2002
Filing Date:
August 23, 2000
Export Citation:
Assignee:
SAINT GOBAIN BAYFORM AMERICA I (US)
WYLIE DOUGLAS (CA)
CAO ZHIPING (CA)
SHUPAK ERNEST (CA)
RAVINDRAN SAJ (CA)
SZABO JOHN (CA)
WYLIE DOUGLAS (CA)
CAO ZHIPING (CA)
SHUPAK ERNEST (CA)
RAVINDRAN SAJ (CA)
SZABO JOHN (CA)
International Classes:
E06B9/52; (IPC1-7): E06B9/52
Download PDF: