US4452759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immunological agglutination pattern detection device
Assignee: Olympus Corp
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Filing: 1980-09-05
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Granted: 1984-06-05
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Expires: 2000-09-05
Abstract
Abstract An immunological agglutination pattern detection device, which can precisely detect an agglutination pattern formed on the base surface of a reaction vessel and which is simple in construction and easy in operation. The device comprises a reaction vessel provided with a base surface which is provided with at least one concave portion and a centrally located V-shaped section, a point light source for emitting light for evenly illuminating the base surface of the reaction vessel, a projection lens for projecting an image formed on the base surface of the reaction vessel illuminated with the light emitted from the point light source onto an image formation surface, apparatus for scanning the image formed on the image surface inclusive of the image of the agglutination pattern, and a light receiving element for receiving the image scanned by the scanning means and delivering an output signal.
Inventors
- 👤 Hiroshi Takekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:12
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/5302; G01N33/5304; G01N21/00; G01N21/17; G01N21/59; G01N21/5907; G01N21/5911; Y; Y10; Y10S; Y10S436/00; Y10S436/805
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
180 words
An immunological agglutination pattern detection device that includes a stationary reaction vessel having a concave interior base surface that includes a centrally located V-shaped section for collecting particles contained in the vessel to create an agglutination pattern that is indicative of the amount of particles contained in the vessel, a point light source positioned on one side of the base surface for uniformly illminating the base surface to create a light image of the agglutination pattern, an image forming surface positioned on the opposite side of the base surface for receiving the light image of said agglutination pattern, a projection lens for focusing a light image of the agglutination pattern upon the image forming surface, a slit plate mounted adjacent to said image forming surface which has a light aperture formed therein, means for moving the slit plate in relation to said image forming surface whereby the aperture of the slit scans the image focused upon said surface, and a light detecting means for receiving light passed through said aperture and providing an output signal indicative of the agglutination pattern.
Claim 2
Dependent Claim
180 words
An immunological agglutination pattern detection device that includes a stationary reaction vessel having a concave interior base surface that includes a centrally located V-shaped section for collecting particles contained in the vessel to create an agglutination pattern that is indicative of the amount of particles contained in the vessel, a point light source positioned on one side of the base surface for uniformly illminating the base surface to create a light image of the agglutination pattern, an image forming surface positioned on the opposite side of the base surface for receiving the light image of said agglutination pattern, a projection lens for focusing a light image of the agglutination pattern upon the image forming surface, a slit plate mounted adjacent to said image forming surface which has a light aperture formed therein, means for moving the slit plate in relation to said image forming surface whereby the aperture of the slit scans the image focused upon said surface, and a light detecting means for receiving light passed through said aperture and providing an output signal indicative of the agglutination pattern.
Claim 3
Dependent Claim
29 words
The device of claim 1 that further includes a recording means for processing the output signal of said detecting means and providing a discernable record of the agglutination pattern.
Claim 4
Dependent Claim
16 words
The device of claim 1 wherein the base surface of the vessel is conical in form.
Claim 5
Dependent Claim
20 words
The device of claim 1 that further includes a second lens for bringing the scanned image to the detecting means.
References Cited (Backward Citations)
US2788702A
Cited
US3520609A
Cited
FR1539674A
Cited
US3883308A
Cited
US3579306A
Cited
US4148607A
Cited
US4150360A
Cited
US4232970A
Cited
US4240751A
Cited
US4303616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |