Static structures (e.g. – buildings) – Auxiliary imperforate panel-like shield attached to main... – Auxiliary pane attached to main pane
Reexamination Certificate
2000-07-17
2001-11-13
Purol, David M. (Department: 3634)
Static structures (e.g., buildings)
Auxiliary imperforate panel-like shield attached to main...
Auxiliary pane attached to main pane
C052S456000
Reexamination Certificate
active
06314689
ABSTRACT:
FIELD OF THE INVENTION
1. Field of the Invention.
This invention relates to hurricane and other storm shields of orifices in buildings.
BACKGROUND OF THE INVENTION
2. Relation to prior art.
Designs and structures of storm shields proliferated after recent hurricane damages and resulting laws for protection against damages from future storms and natural disasters. None are known, however, to be flat, transparent panels that are attachable and storable in a manner taught by this invention.
Examples of most-closely related known but yet different storm shields are described in the following patent documents. U.S. Pat. No. 5,918,430, issued to Rowland on Jul. 6, 1999, described a removable storm shield having a convex structure to deflect wind pressures outwardly. U.S. Pat. No. 5,852,903, issued to Astrizky on Dec. 29, 1998, described a hurricane shutter that folded over a window or door. U.S. Pat. No. 5,487,243, issued to Hale et al on Jan. 30, 1996, described a storm shutter system having reinforcement panels that fit flush against window and door panels. U.S. Pat. No. 5,228,238, issued to Fenkell on Jul. 20, 1993, described a transparent storm shutter that bowed and hinged resiliently against storm pressures to protect windows and doors. U.S. Pat. No. 4,685,261 issued to Seaquist on Aug. 11, 1987, was limited to a storm shutter having a frame with a base having an adjustable base angle to fit onto a wide range of window sills.
SUMMARY OF THE INVENTION
Objects of patentable novelty and utility taught by this invention are to provide a transparent planar storm shield which:
provides window and door structure which obviates need for hurricane shutters and other extraneous or added protection against hurricane wind forces and impact by hurricane debris;
is adaptable to a wide selection of sizes, shapes and aesthetics of windows and doors;
provides protection against unlawful entry by glass-breakage; and
makes doors and windows hurricane-proof inexpensively and aesthetically adaptable without need for extra protection against both hurricane-level storms and most criminal breaking and entry through doors and windows.
This invention accomplishes these and other objectives with a transparent planar storm shield having framed panels with predetermined transparency and predetermined resistance to storm pressure and to storm-debris impact. Panels of the framed panels are preferably shatterproof plastic material that includes predetermined polycarbonate. Frames of the framed panels have strengths in proportion to thicknesses for predetermined storm protection by predetermined areas of the storm shield. The storm shield is a predetermined portion of a building orifice which can include a door or a window. The predetermined resistance to storm pressure and to stormdebris impact of the panels is about an equivalent to a commercial grade of polycarbonate having a thickness of one-eighth of an inch and being rectangular with less than twenty-five percent deviation from being square. Strengths of the frames are predetermined by capacity to contain the panels in positions of resistance to the predetermined resistance to the storm pressure and the storm-debris impact.
REFERENCES:
patent: 3006041 (1961-10-01), Thuet et al.
patent: 4702055 (1987-10-01), Ralph
patent: 5040347 (1991-08-01), Valvis
patent: 5291710 (1994-03-01), Golen
patent: 5351459 (1994-10-01), Kassl et al.
patent: 5477647 (1995-12-01), Yates
patent: 5722206 (1998-03-01), McDonald
patent: 5911660 (1999-06-01), Watson
patent: 6026621 (2000-02-01), Fisher
patent: 6079168 (2000-06-01), Shaver
Johnson Merrill N.
Purol David M.
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