Three-piece stair nosing

Details Three-piece stair nosing Three-piece stair nosing

1998-10-13

2000-08-15

Callo, Laura A.

Static structures (e.g., buildings)

Specified wear or friction-type traffic-carrying surface

Tread-nosing; e.g., shaped stair pad

527412, E04F 1116

Patent

active

061017701

ABSTRACT:
A three piece stair nosing is used in new construction and the reconstruction and repair of stairs, primarily for industrial and commercial applications. The stair nosing comprises a metal sub-channel, a front channel including a tread surface, and a rear channel. The sub-channel includes one or more anchors to be embedded in uncured concrete which, when hardened, secures the sub-channel to the stair pan. The front channel includes a metal base and a tread bonded to the base to provide a skid resistant surface. The front channel is locked into place on top of the sub-channel with locking tabs and is secured to the sub-channel with fasteners after which the rear channel is press fit into place to complete the assembly.

REFERENCES:
patent: 800895 (1905-10-01), Beevers
patent: 943418 (1909-12-01), Kanski
patent: 1681073 (1928-08-01), Welcome
patent: 3421274 (1969-01-01), Balzer et al.
patent: 3759000 (1973-09-01), Balzer et al.
patent: 4001991 (1977-01-01), Balzer et al.
patent: 4037374 (1977-07-01), Balzer et al.
patent: 4112641 (1978-09-01), Balzer
Wooster Products, Inc., "Anti-Slip Safety Stair and Walkway Products by `Wooster`", 16 page brochure, Jan. 1995.

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