E - Fixed Constructions – 05 – D
Patent
E - Fixed Constructions
05
D
E05D 7/04 (2006.01) E05C 1/02 (2006.01) E05D 9/00 (2006.01) E05D 15/30 (2006.01) E05D 15/14 (2006.01)
Patent
CA 2374890
A closure member used with a window closure system in securing a window sash to a window frame is characterized by a corrosion resistant elongated rigid rectangular portion or body having two or more juxtaposed corrosion resistant metal sheet layers. The closure member is formed from folding one or more metal sheets having a thickness selected at between about .25 and 2 mm, and more preferably, about .25 and 1 mm, wherein an edge portion of the sheet is bent back against an adjacent portion to form a multi-layered laminate structure. To eliminate potentially dangerous sharp side edges, opposing longitudinal edge portions of the stainless sheet may be folded inwardly against a central portion of the sheet by bending along two longitudinal extending and parallel fold seams. The closure member may be used to secure a window sash to a window as part of a swivel arm, a hinge arm, and/or as part of a reciprocally movable tie bar used to selectively lock or unlock the window sash to the frame. Preferably, the closure member is further characterized by one or more keeper members which engage the metal layers and prevent their movement from a juxtaposed orientation. Suitable keeper members include caming pivot bosses which engage part of each of the outermost metal layers to restrict their movement apart, or depending upon the intended application for the window closure member, the keeper member could alternately comprise one or more locking studs, snap studs, pivot studs or other suitable pivot fasteners.
de Marco Giuseppe
Riches Mckenzie & Herbert Llp
LandOfFree
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