Safes – bank protection – or a related device – Shields and protectors
Reexamination Certificate
1999-04-30
2001-06-05
Barrett, Suzanne Dino (Department: 3627)
Safes, bank protection, or a related device
Shields and protectors
C428S911000, C102S303000, C089S036020
Reexamination Certificate
active
06240858
ABSTRACT:
TECHNICAL FIELD
This invention is concerned with preventing unauthorized entry into secure areas.
BACKGROUND ART
Inventors have long been concerned with devising penetration resistant panels to serve as doors for safes and vaults.
U.S. Pat. No. 63,046 granted Mar. 19, 1867 to E. M. Hendrickson for “Burglar-Proof-Safe” discloses a safe wall containing soft metal wire bent in spiral form and intended to break a drill penetrating the panel.
J. M. Ewing in his U.S. Pat. No. 100,741 granted Mar. 15, 1870 for “Burglar Proof Safe” disclosed a panel composed of chains interlinked or interwoven with each other. In theory the burglar's tools were turned aside by the yielding chain links.
U.S. Pat. No. 2,773,459 granted Dec. 11, 1956 to P. S. Sechy for “Protective Wall for Use Against Radiation and Explosive Forces” discloses a wall structure composed of a plurality of corrugated metal sheets, resilient material and concrete.
R. E. Hollis, Sr. disclosed the use of overlapping, spot welded wavy steel wires in his U.S. Pat. No. 3,969,563 granted Jul. 13, 1976 for “Protection Wall Structure”.
The fact is any of these wall structures can be penetrated by the tools and explosives available to the modern burglar or espionage agent if the perpetrators are given sufficient time.
SUMMARY OF THE INVENTION
The objective of this invention is to significantly increase the time required for the culprit to enter the secured area. With a long enough delay security personnel have time to react and thwart the break-in.
This invention provides a plurality of elongated resilient members under axial compression in serpentine configurations. When an opening is cut or blasted in the panel any members which are cut straighten from the energy stored therein to thrust their cut ends into the opening. The culprit is then faced with the further task of clearing the opening by cutting or blasting away the protruding ends of the members before gaining entry. The elongated members may be braided wire cables, leaf springs or helical springs.
REFERENCES:
patent: 63046 (1867-03-01), Hendrickson
patent: 100741 (1870-03-01), Ewing
patent: 1236033 (1917-08-01), Almengual
patent: 1354671 (1920-10-01), Magnuson
patent: 1625061 (1927-04-01), Trout
patent: 2077729 (1937-04-01), Wilcox
patent: 2110322 (1938-03-01), Calzavara
patent: 2326713 (1943-08-01), Wesseler
patent: 2773459 (1956-12-01), Sechy
patent: 3519529 (1970-07-01), Cook
patent: 3895162 (1975-07-01), Lemont et al.
patent: 3969563 (1976-07-01), Hollis, Sr.
patent: 4090005 (1978-05-01), Morgan
patent: 4179979 (1979-12-01), Cook et al.
patent: 4186648 (1980-02-01), Clausen et al.
patent: 4727789 (1988-03-01), Katsanis
patent: 4732803 (1988-03-01), Smith, Jr.
patent: 5149910 (1992-09-01), McKee
patent: 5200256 (1993-04-01), Dunbar
patent: 5272954 (1993-12-01), Crouch
patent: 5329864 (1994-07-01), Doring
patent: 5531500 (1996-07-01), Podvin
patent: 5563364 (1996-10-01), Alhamad
patent: 5591933 (1997-01-01), Li et al.
patent: 5654518 (1997-08-01), Dobbs
patent: 5740635 (1998-04-01), Gil et al.
patent: 5851932 (1998-12-01), Dickson et al.
patent: 5853863 (1998-12-01), Kim
patent: 701489 (1940-12-01), None
patent: 2365680 (1978-04-01), None
Barrett Suzanne Dino
Cahill Sutton & Thomas P.L.C.
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