Safe with hydraulic safety protection

Details Safe with hydraulic safety protection Safe with hydraulic safety protection

1975-06-16

1977-05-10

Gilliam, Paul R.

Safes, bank protection, or a related device

Combined

With alarm, signal or indicator

109 47, 1373844, E05G 110

Patent

active

040221377

ABSTRACT:
A safe for protecting valuables such as jewelry with an outer casing having an open top and an inner casing for receiving the valuables. A hydraulically operated, mechanical linkage within the outer casing mounts the inner casing for movement by the application of hydraulic force between a lower and elevated position. First and second locks are disposed in the hydraulic path which elevates the inner casing and each include a rotatable annular element and a second element rotatable therein, each element having a passage therethrough so that the hydraulic elevating path is completed when the passages are aligned by choice of the correct combination. At least one of the elements includes a drain path for releasing the hydraulic pressure to lower the inner casing. An alarm coupled to the hydraulic path sounds whenever pressure greater than a given value is detected indicating that pump has been operated without the locks being in the correct positions.

REFERENCES:
patent: 695360 (1902-03-01), Abbott
patent: 1548282 (1925-08-01), Reinhart et al.
patent: 1559370 (1925-10-01), Postemsky
patent: 1584294 (1926-05-01), Heise
patent: 3059596 (1962-10-01), Pretini

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