Static structures (e.g. – buildings) – With synthetic resinous component – With nonresinous component
Patent
1977-08-10
1978-05-23
Perham, Alfred C.
Static structures (e.g., buildings)
With synthetic resinous component
With nonresinous component
52426, 52650, 52662, 61 38, 85 49, 428100, 428101, E02B 312, E04B 1345
Patent
active
040903370
ABSTRACT:
Overlying first and second sheets of flexible fabric may be employed to make a form for slabs of concrete, or the like, when the sheets are adequately connected at spaced intervals. A novel connector for such purpose is disclosed herein and comprises a unique, staple-like configuration by which to permit separation of the sheets to a substantial but limited extent. Each connector has at least one shaft with a crown at one end and a point at the other end. A barb is provided in proximity to the pointed end of the shaft and presents a reentrant tip spaced laterally of the shaft and disposed in a direction opposite the point on the shaft. A bridge spans between the barb and shaft. The point permits facile penetration of both sheets with the crown limiting the extent to which the shaft can penetrate the first sheet. The reentrant tip on the barb permits facile retropenetration of the second sheet, and the bridge engages a sufficient portion of the second sheet to preclude withdrawal.
REFERENCES:
patent: 3425227 (1969-02-01), Hillen
patent: 3468088 (1969-09-01), Miller
patent: 3486341 (1969-12-01), Huesker-Stieue et al.
patent: 3555751 (1971-01-01), Thorgusen
patent: 3570254 (1971-03-01), Turzillo
patent: 3757629 (1973-09-01), Schneider
Medina Plastic Products, Inc.
Perham Alfred C.
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