Patent US5033602A successfully refreshed from Google Patents.
US5033602A
Expired / Lapsed
US
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Device for indentifying coins
Assignee: INTER MARKETING TIETAJANTIE 10-12 02130 ESPOO FINLAND Oy
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Filing: 1988-03-30
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Granted: 1991-07-23
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Expires: 2008-03-30
Abstract
Abstract A device for electronically identifying coins, or the like, is described in which coins fed along a feed path are illuminated by light passed from a light source essentially perpendicularly to the feed path. A photosensitive sensor receives the light which passes the coin and converts it to an electric signal representative of the coin diameter. The device utilizes a column-like light source and a lens assembly intermediate the coin and the sensor whereby the size requirements of the sensor are reduced.
Inventors
- 👤 Tapani Saarinen
- 👤 Jaakko A. Rasanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:48
CPC Classifications
G; G07; G07D; G07D5/00; G07D5/02; G07D2205/00; G07D2205/001; G07D2205/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A device for the identification of coins on the basis of the diameter of the coins, comprising: a coin path (2) for feeding coins (1); a column-like light source (3) comprising two superposed columkn elements (3a3b), equal in size, for illumianting a coin (1) on the coin path (2) in a direction essentially perpendicular to the plane of the coin path (2); a photosensitive sensors (4) that measures the amount of light sent by the column-like light source (3) that passes the coin (1) to convert this light into an electric signal dependent on the diameter of the coin; and a lens assembly (5) arranged in front of the photosensitive sensor (4) and behind the coin path (2) for projecting an image of the light from the column-like light source (3) that passes a coin (1) onto the photosensitive sensor (4); wherein the amounts of light from the column elements (3a, 3b) of the column-like light source (3) are separately adjustable to permit calibration of the readings given by the photosensitive sensor (4) measuring the amount of light.
Claim 2
Independent Claim
178 words
A device for the identification of coins on the basis of the diameter of the coins, comprising: a coin path (2) for feeding coins (1); a column-like light source (3) comprising two superposed columkn elements (3a3b), equal in size, for illumianting a coin (1) on the coin path (2) in a direction essentially perpendicular to the plane of the coin path (2); a photosensitive sensors (4) that measures the amount of light sent by the column-like light source (3) that passes the coin (1) to convert this light into an electric signal dependent on the diameter of the coin; and a lens assembly (5) arranged in front of the photosensitive sensor (4) and behind the coin path (2) for projecting an image of the light from the column-like light source (3) that passes a coin (1) onto the photosensitive sensor (4); wherein the amounts of light from the column elements (3a, 3b) of the column-like light source (3) are separately adjustable to permit calibration of the readings given by the photosensitive sensor (4) measuring the amount of light.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |