US3617758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring size of zone having optical stains
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1969-12-22
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Granted: 1971-11-02
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Expires: 1989-12-22
Abstract
Abstract In measuring the size of a zone having optical stains, such as an inhibition zone of micro-organism growth, the method of the invention is characterized by scanning said zone by plural photoconductive detectors disposed in a row at a constant speed, the scanning direction being at a right angle to the row of said detectors, and measuring the size of said zone by electrically measuring the time during which at least one of said detectors is in operation.
Inventors
- 👤 Kazuo Nagamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:09
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1468; G01B; G01B11/00; G01B11/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
222 words
A method for automatically measuring circular zones having optical stains said zones being inhibition zones of microorganisms comprising; (a) scanning said zones by plural photoconductive detectors disposed in a row at a constant speed, the scanning direction being at a right angle to the row of said detectors, said circular zones being arranged in plural number on a line with defection and said photoconductive detectors being disposed in a row in such arrangement relative to a desired one of said circular zones serving as a datum circle that satisfies the formulas, 1.4 d L 2v, s 2e wherein L is the length of row of said photoconductive detectors; s is the space between said respective photoconductive detectors; d is the diameter of said datum circle; v is the greatest of the deflections of said circular zones from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflections being in the direction of the row of said detectors; and e is allowable deflection of said circular zone from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflection being in the direction of the row, and (b) measuring the size of said zones by electrically measuring the time during which at least one of said detectors is in operation.
Claim 2
Independent Claim
222 words
A method for automatically measuring circular zones having optical stains said zones being inhibition zones of microorganisms comprising; (a) scanning said zones by plural photoconductive detectors disposed in a row at a constant speed, the scanning direction being at a right angle to the row of said detectors, said circular zones being arranged in plural number on a line with defection and said photoconductive detectors being disposed in a row in such arrangement relative to a desired one of said circular zones serving as a datum circle that satisfies the formulas, 1.4 d L 2v, s 2e wherein L is the length of row of said photoconductive detectors; s is the space between said respective photoconductive detectors; d is the diameter of said datum circle; v is the greatest of the deflections of said circular zones from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflections being in the direction of the row of said detectors; and e is allowable deflection of said circular zone from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflection being in the direction of the row, and (b) measuring the size of said zones by electrically measuring the time during which at least one of said detectors is in operation.
Claim 3
Dependent Claim
29 words
The method for automatically measuring the size of a zone having optical stains according to claim 1 wherein v in said formula is not greater than 0.4 X d.
Claim 4
Dependent Claim
30 words
The method for automatically measuring the size of a zone having optical stains according to claim 1 wherein said row of the photoconductive detectors comprises at least 4 photoconductive detectors.
Claim 5
Dependent Claim
31 words
The method for automatically measuring the size of a zone having optical stains according to claim 1 wherein the number of the row of said photoconductive detectors is 1 to 20.
Claim 6
Dependent Claim
53 words
The method for automatically measuring the size of a zone having optical stains according to claim 1 wherein the electrical measurement of the time of scanning said zone is achieved by feeding clock pulse signals to a counter while at least one of said photoconductive detectors is in operation and counting the signals.
Claim 7
Dependent Claim
30 words
The method for automatically measuring the size of a zone having optical stains according to claim 5 wherein the clock pulse signals counted by said counter are read and recorded.
Claim 8
Dependent Claim
64 words
The method for automatically measuring the size of a zone having optical stains according to claim 5 wherein said counter is provided in plural number and the measurement of the time of scanning one zone is made by counting on one counter and the measurement of the time of scanning a next zone is made by counting on another counter by switching said counter.
Claim 9
Dependent Claim
33 words
The method for automatically measuring the size of a zone having optical stains according to claim 7 wherein switching of said counter is performed by a binary counter provided with a flip-flop circuit.
Claim 10
Dependent Claim
28 words
The method for automatically measuring the size of a zone having optical stains according to claim 7 wherein switching of said counter is performed by an external switch.
Claim 11
Independent Claim
213 words
An apparatus for automatically measuring the size of circular zones having optical stains comprising plural photoconductive detectors arranged in a row relative to a desired one of said circular zones serving as a datum circle that satisfies the formulas, 1.4 d L 2v s 2e wherein L is the length of row of said photoconductive detectors; s is the space between said respective photoconductive detectors; d is the diameter of said datum circle; v is the greatest of the deflections of said circular zones from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflections being in the direction of the row of said detectors; and e is allowable deflection of said circular zone from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflection being in the direction of the row, means causing said detectors to scan said zones at a constant speed, the scanning direction being at a right angle to the row of said detectors, a clock pulse circuit, a gate circuit for effecting passage of the clock pulses only while at least one of said photoconductive detectors is in operation, and a counter for counting the clock pulses which have passed through the gate circuit.
Claim 12
Independent Claim
213 words
An apparatus for automatically measuring the size of circular zones having optical stains comprising plural photoconductive detectors arranged in a row relative to a desired one of said circular zones serving as a datum circle that satisfies the formulas, 1.4 d L 2v s 2e wherein L is the length of row of said photoconductive detectors; s is the space between said respective photoconductive detectors; d is the diameter of said datum circle; v is the greatest of the deflections of said circular zones from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflections being in the direction of the row of said detectors; and e is allowable deflection of said circular zone from the centerline of said datum circle which is perpendicular to the row of said detectors, the deflection being in the direction of the row, means causing said detectors to scan said zones at a constant speed, the scanning direction being at a right angle to the row of said detectors, a clock pulse circuit, a gate circuit for effecting passage of the clock pulses only while at least one of said photoconductive detectors is in operation, and a counter for counting the clock pulses which have passed through the gate circuit.
Claim 13
Dependent Claim
29 words
An apparatus for automatically measuring the size of a zone having optical stains according to claim 10 wherein said row of photoconductive detectors comprises at least 4 photoconductive detectors.
Claim 14
Dependent Claim
31 words
The apparatus for automatically measuring the size of a zone having optical stains according to claim 10 wherein the number of the row of said photoconductive detectors is 1 to 20.
Claim 15
Dependent Claim
71 words
An apparatus for automatically measuring the size of a zone having optical stains according to claim 10 wherein said counter is provided in plural number, said apparatus being provided with means for switching said counter whereby after the measurement of the time of scanning one zone is made by counting on one counter the measurement of the time of scanning a next zone can be made by counting on another counter.
Claim 16
Dependent Claim
30 words
The apparatus for automatically measuring the size of a zone having optical stains according to claim 13 wherein said switching means is a binary counter provided with a flip-flop circuit.
Claim 17
Dependent Claim
25 words
The apparatus for automatically measuring the size of a zone having optical stains according to claim 13 wherein said switching means is an external switch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |