Movable or removable closures – With protective grille or safety guard – Removable
Reexamination Certificate
2003-02-24
2004-08-24
Redman, Jerry (Department: 3634)
Movable or removable closures
With protective grille or safety guard
Removable
C049S463000, C292S25900A
Reexamination Certificate
active
06779304
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
n/a
FIELD OF THE INVENTION
The present invention relates to a method and system for enhancing safety at a construction site, and more particularly to a system for hindering inadvertent passage through a wall opening.
BACKGROUND OF THE INVENTION
Part of the process of constructing buildings includes the creation or definition of spaces that will become doors and windows in what are otherwise substantially solid walls. However, as the doors and windows themselves can be relatively expensive and easily damaged during active construction, the doors, windows, and elevators are often installed after much construction work has been accomplished. Further, as the door and window openings are often a primary passageway for introduction of building supplies, it is desired, if not imperative to have the largest possible, unimpeded openings.
In low, one level buildings, unobstructed wall openings present little danger. However, as a building increases in height to two or more levels, the danger associated with unobstructed or guarded wall openings increases. Specifically, if a construction worker falls from the building due to accidental passage through a wall opening, there is a high likelihood of injury or death.
In recognition of the serious danger related to falling from such openings, the United States Occupational Safety and Health Administration (OSHA) requires that an obstruction be placed in wall openings at a height of 42 inches, plus or minus three inches, so as to withstand 200 pounds falling into it in an “outward” and/or “downward” direction. The OSHA requirements are set forth in detail in 29 CFR 1926.502. In practice, these obstructions are pieces of wood, such as “2×4's” that are nailed to the wall on opposite sides of the opening. However, as described above, the wall openings are primary passages for building materials to and from buildings. Thus, the obstructions must be removed to allow passage and replaced following passage. The obstructions must also be removed when furring strips are installed on the walls.
It has been discovered that boards that are nailed into a wall so as to be easily removed, do not provide adequate resistance to falling forces. However, when a board is repeatedly, securely nailed to a wall, the wall can become severely damaged. Further, it has been discovered that because of the tedium in ripping a board from a wall and renailing it each time equipment or material pass through an opening being protected, that the opening is often left unguarded in contravention to OSHA guidelines.
It would therefore be desirable to provide a system for blocking a wall opening in accordance with OSHA guidelines that is so easy to use that it actually will be used.
SUMMARY OF THE INVENTION
The present invention advantageously provides a method and system for enhancing safety at a construction site, and more particularly to a system for hindering inadvertent passage through a wall opening.
In an exemplary embodiment, a wall opening fall protection support system includes a pair of brackets, each bracket of the pair having a mounting portion, a support portion and a retaining portion; and a rail, wherein the rail is securable to each bracket by the retaining portion. More particularly the system can include a pair of brackets, each bracket of the pair having a substantially planar mounting portion, a support portion, a retaining portion including a locking element, and a standoff element wherein the retaining portion is resiliently joined to the support portion; and a rail, wherein the rail is securable to each bracket by the retaining portion so as to be at least partially surrounded by the support portion, the retaining portion and the standoff element.
REFERENCES:
patent: 212242 (1879-02-01), Loper
patent: 3282547 (1966-11-01), Ables
patent: 3376669 (1968-04-01), Johnston
patent: 3980328 (1976-09-01), Pearson
patent: 4082332 (1978-04-01), Palmer
patent: D270572 (1983-09-01), Black
patent: 5335452 (1994-08-01), Taylor
patent: D397014 (1998-08-01), Wilson
patent: 5829549 (1998-11-01), Flynn
patent: 6220577 (2001-04-01), Ostrow
patent: 6345689 (2002-02-01), McNamee
patent: D471291 (2003-03-01), Ammons
patent: D473125 (2003-04-01), Conroy
U.S. Department of Labor, Occupational Safety & Health Administration, Fall Protection Systems Criteria and Practices.—1926.502.
Christopher & Weisberg P.A.
Innovative Safety Products Incorporated
Redman Jerry
LandOfFree
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