Check-actuated control mechanisms – Including noncontacting – relatively movable parts connected...
Patent
1975-10-09
1977-01-04
Knowles, Allen N.
Check-actuated control mechanisms
Including noncontacting, relatively movable parts connected...
194DIG3, 221129, 221152, 221153, 221125, G07F 510
Patent
active
040008002
ABSTRACT:
An electromechanical interlock device is interposed between an electrical credit system and a mechanical product dispenser. In preferred form, the interlock device includes a solenoid electrically connected to the credit system, and a drive cam adapted to be positively rotated by the manually operated mechanical product dispenser. The interlock device also includes a locking arm spring loaded into locking engagement with the drive cam to prevent unauthorized rotation thereof, an activator arm connected to the solenoid and adapted to remove the locking arm from locking engagement with the drive cam, and a latch lever. The solenoid is electrically energized upon deposit of the coinage required to achieve vending of a product, the solenoid driving the activator arm and, hence, the locking arm, into the unlock position, thereby withdrawing the locking arm from interlock engagement with the drive cam. As the locking arm's unlock position is achieved, the latch lever, which is tension spring connected with the locking arm, latches the activator arm in the unlock attitude, thereby also latching the lock arm in the unlock position. Subsequently, the drive cam is rotated by the manually operated mechanical product dispenser as that dispenser is operated by the customer to vend a product. The drive cam contacts the latch lever during the drive cam's rotational movement to remove the latch lever from latched engagement with the activator arm. Such permits the spring loaded locking arm to reset into locking relation with the drive cam once the product dispenser's vend cycle has been completed.
REFERENCES:
patent: 2272859 (1942-02-01), Wilsey
patent: 2438502 (1948-03-01), Holt
patent: 3294286 (1966-12-01), Zibbell
patent: 3929257 (1975-12-01), Mohan
Knowles Allen N.
William F. Shepherd, Inc.
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