METHOD AND APPARATUS FOR CONDITIONING COINS PRIOR TO DISCRIMINATION
A coin conditioner is provided for cleaning or otherwise conditioning coins in a coin discriminator apparatus prior to transfer to a coin sensor. Coins enter through a feed tray and move down the length of a perforated tumbler, preferably without the use of gravity, such as under screw force, mechanical or centrifugal force. The spinning tumbler is preferably rotated about its longitudinal axis by a motor. In one embodiment, a blower or vacuum draws or moves air from one area to another, with the air preferably being filtered. As coins move through and down a tumbler, projections such as vanes, fins, ridges, dimples, spines or other raised features cause mechanical agitation and/or abrasion as coins are lifted and dropped while passing longitudinally through the tumbler. The coins are conditioned and non-coin matter is collected as it is separated and/or abraded from the coin surfaces. Tumbler perforations permit non-coin matter to pass through the perforations into a collection tray or other apparatus and/or are collected into filter media as a result of the air flow. In one embodiment, the air pressure system eliminates or reduces the occurrence of low density or light non-coin matter, such as hair or dust, and prevents these materials from settling or being carried through downstream portions of the coin processing system.
1 . In a coin discriminating device, an apparatus for cleaning a mass of coins prior to conveyance to a coin discriminator, comprising:
a container having at least a first opening for admitting a first plurality of said mass of coins and a second opening, smaller than said first opening, for permitting exit of dirt from said container; and
a driver, coupled to said container so as to move said container and agitate said first plurality of coins.
2 . Apparatus, as claimed in claim 1 , wherein said container includes a third opening, larger than said second opening, permitting coins to exit said container.
3 . Apparatus, as claimed in claim 2 , further comprising a first endpiece coupled to said container adjacent said first opening and defining a coin entry opening, wherein said first endpiece is manually removable from said container, without the use of tools.
4 . Apparatus, as claimed in claim 3 , further comprising a second endpiece coupled to said container adjacent said third opening and defining a coin exit opening, wherein said second endpiece is manually removable from said container, without the use of tools.
5 . Apparatus, as claimed in claim 4 , further comprising means to prevent coupling said first endpiece adjacent said third opening.
6 . Apparatus, as claimed in claim 5 , wherein said means includes a resilient tab and slot system, configured differently from a corresponding tab and slot system employed with said second endpiece and third opening.
7 . Apparatus, as claimed in claim 4 , wherein at least one of said first and second endpieces includes a bearing to accommodate rotation of said container.
8 . Apparatus, as claimed in claim 4 wherein at least one of said first and second endpieces includes a component of a transmission system for coupling said driver to said container.
9 . Apparatus, as claimed in claim 8 , wherein said component comprises a gear.
10 . Apparatus, as claimed in claim 2 , further comprising a chute adjacent said third opening for directing coins, output from said third opening, in an output direction, said chute having at least a first tapering region.
11 . Apparatus, as claimed in claim 1 , wherein said driver is coupled to said container to pivot said container about at least a first axis.
12 . Apparatus, as claimed in claim 1 , wherein said driver is coupled to said container to rotate said container about at least a first axis.
13 . Apparatus, as claimed in claim 12 , further comprising a frame, wherein said container is coupled to said frame via first and second bearings displaced from each other along said first axis.
14 . Apparatus, as claimed in claim 13 , wherein said container is removably coupled to said frame.
15 . Apparatus, as claimed in claim 13 , wherein at least one of said first and second bearings may be moved from an operating position to a position to facilitate removal of said container.
16 . Apparatus, as claimed in claim 15 , comprising means for normally urging said one of said first and second bearings toward said operating position.
17 . Apparatus, as claimed in claim 15 wherein said one of said first and second bearings may be moved to said position to facilitate removal in a manual fashion, without the need for tools.
18 . Apparatus, as claimed in claim 1 , wherein said container includes a plurality of openings for permitting exit of dirt from said container.
19 . Apparatus, as claimed in claim 1 , further comprising at least a first vane protruding inwardly from an interior surface of said container.
20 . Apparatus, as claimed in claim 19 , wherein said first vane contacts the interior surface of said container in a first region, defining at least a first plane which is tangent to said interior surface in said first region, and wherein at least a first portion of said first vane is non-orthogonal to said first plane.
21 .- 60 . (canceled)