Deposit and collection receptacles – Miscellaneous – Money – coin – check – memo holders
Reexamination Certificate
1996-08-08
2001-02-27
Redman, Jerry (Department: 3634)
Deposit and collection receptacles
Miscellaneous
Money, coin, check, memo holders
Reexamination Certificate
active
06193149
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a lockable cassette or the like intended for the storage of valuable documents and articles.
DESCRIPTION OF THE RELATED ART
It is generally preferred that cassette locking mechanisms of the aforedescribed kind be secure against unauthorized access to the cassette, e.g., by impact forces or by pivotal or rotational movement.
It is known in the art, e.g., from U.S. Pat. No. 5,249,831, to provide a lock provided with a lock bolt that is connected to a counterweight via a pivotally mounted lever. The lengths of the two arms of the lever and the masses of the respective lock bolt and counterweight are selected so that, in the event of an essentially horizontal impact, the mass of the bolt and the mass of the counterweight will counteract each other so as to render the lock unforcible when such manipulations are attempted. However, if an attempt is made to manipulate the lock by rotation, the mass of the counterweight would, instead, amplify the imbalance, thereby impairing the desired protection against manipulation of the lock.
What is needed is a system for the storage of valuable documents and articles including a cassette and a casing for removably receiving the cassette, wherein the cassette is closed and locked when removed from the casing but is unlocked and accessible when inserted into the casing and wherein a locking mechanism of the cassette is configured to prevent unauthorized entry therein by striking or rotating the cassette.
SUMMARY OF THE INVENTION
An improved lockable cassette system is provided for the storage of valuable documents and articles. The system includes a cassette having a lid, wherein the cassette is closed and locked when removed from a cassette casing but is unlocked and accessible when inserted into the casing by virtue of an actuation of a means which functions to move a lock bolt between a lid-latching position and a lid release position, wherein the means is comprised of an electric relay and a two-arm lever, with one arm of the two-arm lever attached to the core of the relay that is actuatable to a locking position by a first pressure spring, and with the other arm of the two-arm lever forming a surface for establishing an abutting relationship with the lock bolt in its lid-latching position as the relay is inactive.
The system also includes a counterweight attached to the pressure spring wherein, when the relay is inactive, the counterweight has a light resilient abutting relationship with, but is not fastened to, one arm of a lever so as to actuate the lever in a direction opposite to the direction of movement of the core of the relay in order to allow the lock bolt to occupy a non-locking position. The pressure spring and the mass of the counterweight are configured to solely balance-out the mass of the relay core.
Objects and advantages of the present invention include: providing a lockable cassette system for the storage of valuable documents and articles wherein protection is provided against unauthorized access to the contents of a cassette thereof by applying impact forces to the cassette; providing such a cassette system wherein protection is provided against unauthorized access to the contents of a cassette thereof by applying rotational forces to the cassette; and generally providing such a cassette system that is economical to manufacture, efficient in operation, reliable in performance, capable of long operating life and particularly well adapted for the proposed usage thereof.
Other objects and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings, which constitute a part of this specification and wherein are set forth exemplary embodiments of the present invention to illustrate various objects and features thereof.
REFERENCES:
patent: 3948376 (1976-04-01), Roman
patent: 4283097 (1981-08-01), Lundblad
patent: 4552075 (1985-11-01), Gasson et al.
patent: 4597340 (1986-07-01), Huckle
patent: 5209395 (1993-05-01), Zouzoulas et al.
patent: 5249831 (1993-10-01), Maniaci
De La Rue Inter Innovation AB
Lathrop & Gage LC
Redman Jerry
LandOfFree
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