US4707138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color measuring and control device
Assignee: AGTRON INCORPORATED A CORP OF
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Filing: 1985-06-03
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Granted: 1987-11-17
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Expires: 2005-06-03
Abstract
Abstract A color detecting device comprising a head (14) supported on an arm (30) for oscillatory motion over the product (11) being color measured to render a signal responsive to the average color of the product. A height detector (44) provides a signal indicating the distance between the product and head and is used to modify the color signal accordingly. A temperature sensor (39) in the head indicates an overtemperature condition for causing movement of the head away from the product. The screen (17) transparency is measured by the indicator (47, 48) to indicate when the screen is dirty.
Inventors
- 👤 Charles W. Coatney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; B; B07; B07C; B07C5/00; B07C5/34; B07C5/342; G01J3/0278; G01J3/0291; G01N; G01N21/00; G01N21/84; G01N2021/845; G01N2201/00; G01N2201/12; G01N2201/127; G01N2201/12723
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A color sensor for detecting the color of a product carried on a top surface of a support, said sensor comprising: means to generate a light beam including selected color wavelengths, a head for transmitting said light beam onto said product, means supporting said head for translating movement over said support top surface along a path generally parallel to said top surface, detector means in said head for detecting the reflected light from said product, means to analyze said reflected light to generate an output signal responsive to the color of said product; means for generating a distance signal responsive to the distance between the product and said head, and means to modulate said output signal responsive to said distance signal to adjust for light changes due to changes in the distance between the product and the head.
Claim 2
Dependent Claim
138 words
A color sensor for detecting the color of a product carried on a top surface of a support, said sensor comprising: means to generate a light beam including selected color wavelengths, a head for transmitting said light beam onto said product, means supporting said head for translating movement over said support top surface along a path generally parallel to said top surface, detector means in said head for detecting the reflected light from said product, means to analyze said reflected light to generate an output signal responsive to the color of said product; means for generating a distance signal responsive to the distance between the product and said head, and means to modulate said output signal responsive to said distance signal to adjust for light changes due to changes in the distance between the product and the head.
Claim 3
Dependent Claim
97 words
A color sensor for detecting the color of a product carried on the top surface of a support, said sensor comprising: a color sensing head including means for directing light of a predetermined wavelength onto said product; a first arm supporting at one end said color sensing head, a second arm rotatably fixed at one end to the other end of said first arm, means rotatably supporting said second arm other end; and, means for rotating said first arm to oscillate said head back and forth over said support to detect an average color of said product.
Claim 4
Dependent Claim
97 words
A color sensor for detecting the color of a product carried on the top surface of a support, said sensor comprising: a color sensing head including means for directing light of a predetermined wavelength onto said product; a first arm supporting at one end said color sensing head, a second arm rotatably fixed at one end to the other end of said first arm, means rotatably supporting said second arm other end; and, means for rotating said first arm to oscillate said head back and forth over said support to detect an average color of said product.
References Cited (Backward Citations)
US1917379A
Cited
US3890049A
Cited
US3998555A
Cited
US4057352A
Cited
US4031752A
Cited
US4259020A
Cited
US4498778A
Cited
US4591996A
Cited
US4553847A
Cited
US4435093A
Cited
US4486098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |