Static structures (e.g. – buildings) – Means compensating earth-transmitted force
Patent
1997-01-17
1998-01-20
Canfield, Robert
Static structures (e.g., buildings)
Means compensating earth-transmitted force
2482001, 527413, 52DIG12, E04H 914, E06B 512
Patent
active
057090548
ABSTRACT:
A window brace includes a vertically disposed pole to which is coupled one or more braces, each of which includes a pad bearing against a portion of a surface of unsupported glass. Each pad defines an internal chamber connected to ambient atmosphere by a check valve such that when the glass bows inwardly toward the pad, air is forced out of the chamber via the check valve that prevents air from returning into the chamber. Evacuation of the chamber, in this way, enhances adherence of the pad to the window glass and, thus, enhances effectiveness of the inventive device. For large pieces of window glass, a plurality of pads may suitably be employed. Alternatively, a valved port in the pad may be connected to a source of vacuum to evacuate the chamber.
REFERENCES:
patent: 2794217 (1957-06-01), Croft
patent: 5339927 (1994-08-01), Truax
patent: 5457922 (1995-10-01), Fara
patent: 5620038 (1997-04-01), DeCola et al.
Canfield Robert
Larson James E.
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