Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent
1979-01-08
1980-11-18
Leppink, James A.
Static structures (e.g., buildings)
Tensioned or flexed sheet facing
52716, 24213R, 24216, 160395, A47H 1300
Patent
active
042337909
ABSTRACT:
A one piece extrusion for use in the manufacturing of structures including structures such as frames, wall partitions, display boards, signs, covers, filters, screens, mesh, window sash and window-like structures, such window frames, window sash and other structures and methods of making such structures and especially of making window sash. The extrusion comprises a locking element of which the main portion is formed of a substantially rigid plastic material, which is provided with spaced integral, flexible projections extending angularly outwardly from the stem of the element, and which is adapted to be inserted in a channel formed in the entire periphery of a rectangular frame so as to hold a flexible translucent, transparent, or opaque sheet locked in the channel. The flexible sheet is forced into the channel. In so doing the flexible sheet is stretched to give a smooth appearance and is locked in the channel and sealed by the extrusion.
REFERENCES:
patent: 2042726 (1936-06-01), Maeller
patent: 3068939 (1962-12-01), Commisso
patent: 3205547 (1965-09-01), Riekse
patent: 3363390 (1968-01-01), Crane
patent: 3371702 (1968-03-01), Keegan
patent: 3392498 (1968-07-01), Rogers
patent: 4133367 (1979-01-01), Abell
patent: 4164105 (1979-08-01), Herbst
DoNel Corporation
Leppink James A.
Millard Sidney W.
Raduazo H. E.
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