Check-actuated control mechanisms – Control mechanism actuated by check – other than coin – which... – Having means to test physical characteristic of check
Patent
1990-04-23
1991-12-03
Bartuska, F. J.
Check-actuated control mechanisms
Control mechanism actuated by check, other than coin , which...
Having means to test physical characteristic of check
194905, G07F 502, G07F 1700
Patent
active
050693247
ABSTRACT:
The device comprises a housing attachable to the handle bar of a nestable cart, such as a shopping cart. The housing has a front and a back key slot, each for receiving a key. Key locking members are mounted in the housing, each associated with a key slot. These locking members are interconnected by a position-inverting mechanism, so that when one locking member is in a key-locking and retaining position, the other locking member is in a key-releasing position, and vice versa. A key is attached to each housing by means of a flexible link, such as a chain, long enough to be inserted into the back key slot of the housing of the next nested cart. However the flexible link can be longer than this requirement. The keys are retained in their back key slots and thus the carts are interlocked in a nested position. The key of the frontmost cart is used to unlock the latter. The front key slot is associated with a coin-receiving slot and a coin-actuated locking member release retains the locking member of the front key slot in key releasing position. Upon insertion of a coin in the coin slot and also of the key of the frontmost cart within its front key slot, said last-named key is retained in the housing of the frontmost cart and the key of the next cart is released from the same housing, whereby the frontmost cart is released for use; it must be returned to the row of shopping carts and the key of the next cart again reinserted into the back key slot of the returned cart to obtain release of the key of the returned cart and of the coin trapped in its housing.
REFERENCES:
patent: 4474280 (1984-10-01), Lenander
patent: 4691816 (1987-09-01), Trubiano
patent: 4766989 (1988-08-01), Maloeuvre et al.
patent: 4941560 (1990-07-01), Bailey
Lepage Jean-Paul
LePage Robert
Bartuska F. J.
Lesperance Pierre
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