Stock material or miscellaneous articles – Two dimensionally sectional layer – Sections connected flexibly with external fastener
Patent
1996-04-23
1997-12-09
Ryan, Patrick
Stock material or miscellaneous articles
Two dimensionally sectional layer
Sections connected flexibly with external fastener
428 53, 428 58, 428 62, 428 83, 428 85, 428192, 52 71, 52117, 52171, 52181, 52227, 52664, 15215, 15238, B32B 900
Patent
active
056958420
ABSTRACT:
An entrance grating for office buildings is comprised of a series of closely spaced tread rail elements, forming the upper surface of the grating, and a plurality of support elements underneath the tread rail elements and tightly secured thereto at right angles. The tread rails are of extruded construction and include a hollow, tubular spine section for high strength and rigidity per unit of weight. The underlying support elements, also of extruded construction, are in the form of downwardly opening channel-shaped elements. High strength, expandable wall, blind fasteners are employed to secure the support elements to the tread rail elements at each of the crossing points to provide a strong, rigid assembly. The open bottoms of the channel-shaped supports may be closed by plastic pad strips providing resilient support and noise reduction.
REFERENCES:
patent: 3808628 (1974-05-01), Betts
patent: 4276728 (1981-07-01), Balzer et al.
patent: 5054253 (1991-10-01), Bedics
patent: 5195292 (1993-03-01), Bedics
Balco Metalines, 12690/BAL, BuyLine 3670, pp. 7, 8, 9.
Arden, 12690/ARD, BuyLine 4184, pp. 6, 7.
Reese, 12690/REE, BuyLine 3090, pp. 8, 9.
The CS Group, 12690/CON, BuyLine 1011, p. 15.
K.N. Crowder, 12690/CRO, BuyLine 2186, p. 2.
Mats, Inc., 12690/MAT, BuyLine 1253, p. 2.
Ohio Gratings, Inc., 05532/OHI, BuyLine 2191, p. 3.
Bahta Abraham
Pawling Corporation
Ryan Patrick
LandOfFree
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