Energy dissipating device for coin handling mechanisms

Details

Inventors: van Zeggern, Wilhelm Aart;
Assignee: Mars, Inc. (McLean, VA)
Primary Examiner: Knowles; Allen N.
Assistant Examiner:
Attorney, Agent or Firm: Davis, Hoxie, Faithfull & Hapgood

A device for dissipating the kinetic energy that causes bouncing which might otherwise effect the results of the coin tests in coin handling apparatus. The device consists of a piece of very hard material such as sintered aluminum oxide which is mounted on the frame of the mechanism and is arranged to be struck by coins travelling along a path through the coin handling mechanism.

DETAILED DESCRIPTION What we claim is: 1.
A coin handling mechanism including means defining a coin path through the mechanism, the means including at least one energy dissipating device arranged to be struck by a coin travelling along the path and cause a change in direction of the path, the energy dissipating device comprising a rigidly mounted solid piece of material having a hardness value greater than 9 on the Mohs scale.
2.
A coin handling mechanism according to claim 1 in which the material is a ceramic material.
3.
A coin handling mechanism according to claim 2 in which the material is sintered aluminium oxide.
4.
A coin handling mechanism to claim 1 in which the said piece is secured directly to a part of the frame of the mechanism.
5.
A coin handling mechanism according to claim 4 in which the piece has an L-shaped cross-section, one limb of the L-shaped piece being secured to part of the frame of the mechanism, the other limb providing the surface which is struck by the coin.
6.
A coin handling mechanism according to claim 2 in which the said piece is secured directly to a part of the frame of the mechanism.
7.
A coin handling mechanism according to claim 6 in which the piece has an L-shaped cross-section, one limb of the L-shaped piece being secured to part of the frame of the mechanism, the other limb providing the surface which is struck by the coin.
8.
A coin handling mechanism according to claim 3 in which the said piece is secured directly to a part of the frame of the mechanism.
9.
A coin handling mechanism according to claim 8 in which the piece has an L-shaped cross-section, one limb of the L-shaped piece being secured to part of the frame of the mechanism, the other limb providing the surface which is struck by the coin.
10.
A coin handling mechanism for identifying acceptable coins of one or more predetermined denominations including means defining a coin path through the mechanism, the means including at least one energy dissipating device arranged to be struck by a coin travelling along the path and cause a change in direction of the path, the energy dissipating device comprising a rigidly mounted piece of ceramic material having a hardness sufficiently greater than that of any coins of the predetermined denominations that the coin has substantially no bounce when it strikes the energy dissipating device

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