Claims
- 1. A coin handling machine comprising:a coin intake adapted to receive a mass of objects including a plurality of desired coins having a minimum coin diameter; a coin processing device for counting or sorting said plurality of desired coins; a drum for separating foreign objects other than said plurality of desired coins from said mass of objects prior to conveyance to said coin processing device, the drum having a first open end for receiving said mass of objects from the coin intake and a second open end, opposite said first end, for allowing said plurality of desired coins to exit said drum, the drum further having a plurality of perforations, each of which has a diameter smaller than said minimum coin diameter, for allowing exit of said foreign objects through said perforations but not of any of said plurality of desired coins; a driving device for rotating said drum; and a first wall mounted internally in said drum and extending in an essentially transversal plane with respect to a longitudinal direction of said drum; and a second wall mounted internally in said drum and extending in a plane, which is non-parallel to said first wall, wherein said second wall has a semicircular or semielliptical shape.
- 2. A coin handling machine as in claim 1, wherein said first wall has a semicircular or semielliptical shape.
- 3. A coin handling machine as in claim 1, wherein at least a portion of said first wall is connected to at least a portion of said second wall.
- 4. A coin handling machine, comprising:a coin intake adapted to receive a mass of objects including a plurality of desired coins having a minimum coin diameter; a coin processing device for counting or sorting said plurality of desired coins; a drum for separating foreign objects other than said plurality of desired coins from said mass of objects prior to conveyance to said coin processing device, the drum having a first open end for receiving said mass of objects from the coin intake and a second open end, opposite said first end, for allowing said plurality of desired coins to exit said drum, the drum further having a plurality of perforations, each of which has a diameter smaller than said minimum coin diameter, for allowing exit of said foreign objects through said perforations but not of any of said plurality of desired coins; a driving device of rotating said drum; and an insert element extending helically inside said drum and having a screw-shape, wherein the screw-shape of the insert element has a non-uniform pitch.
- 5. A coin handling machine, comprising:a coin intake adapted to receive a mass of objects including a plurality of desired coins having a minimum coin diameter; a coin processing device for counting or sorting said plurality of desired coins from said mass of a drum for separating foreign objects other than said plurality of desired coins from said mass of objects prior to conveyance to said coin processing device, the drum having a first open end for receiving said mass of objects from the coin intake and a second open end, opposite said first end, for allowing said plurality of desired coins to exit said drum, the drum further having a plurality of perforations, each of which has a diameter smaller than said minimum coin diameter, for allowing exit of said foreign objects through said perforations but not of any of said plurality of desired coins; a driving device for rotating said drum; and an insert element extending helically inside said drum and having a screw-shape, wherein the insert element comprises a plurality of essentially semicircular or semielliptical flat members.
- 6. A coin handling machine, comprising:a coin intake adapted to receive a mass of objects including a plurality of desired coins having a minimum coin diameter; a coin processing device for counting or sorting said plurality of desired coins; a drum for separating foreign objects other than said plurality of desired coins from said mass of objects prior to conveyance to said coin processing device, the drum having a first open end for receiving said mass of objects from the coin intake and a second open end, opposite said first end, for allowing said plurality of desired coins to exit said drum, the drum further having a plurality of perforations, each of which has a diameter smaller than said minimum coin diameter, for allowing exit of said foreign objects through said perforations but not of any of said plurality of desired coins; a driving device for rotating said drum; and an insert element extending helically inside said drum and having a screw-shape, wherein the insert element is fixedly attached to said drum.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9501091 |
Mar 1995 |
SE |
|
Parent Case Info
This application is a Continuation of application Ser. No. 08/913,495, filed Dec. 12, 1997, which application is a 371 of PCT/SE96/00142, filed Feb. 7, 1996, which claims foreign priority to 9501091-4 filed Mar. 28, 1995 in Sweden, which application(s) are incorporated herein by reference.
US Referenced Citations (11)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0 091 731 |
Oct 1983 |
EP |
62-50876 |
Oct 1987 |
JP |
4-67776 |
Jun 1992 |
JP |
WO9733257 |
Sep 1997 |
WO |
Continuations (1)
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Number |
Date |
Country |
Parent |
08/913495 |
|
US |
Child |
09/473440 |
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US |