US3796500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and arrangement for adjusting optical devices
Assignee: Individual
•
Filing: 1972-09-15
•
Granted: 1974-03-12
•
Expires: 1992-09-15
Abstract
Abstract Method of adjusting optical devices which with the aid of a light beam sense an object periodically reflecting light varyingly and which monitor the reflected light in respect of variations of a predetermined sequence of intensity fluctuations, which comprises converting the intensity fluctuations into an acoustically audible signal and then varying the alignment of the optical device in relation to said object until the acoustically audible signal attains a maximum value.
Inventors
- 👤 W Obser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:50
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10; D04B35/18
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A method of adjusting an optical needle sensor in circular knitting machines which with the aid of a light beam sense an object periodically reflecting light varyingly and which monitor the reflected light in respect of variations of a predetermined sequence of intensity fluctuations, which comprises converting the intensity fluctuations into an acoustically audible signal and then varying the alignment of the optical device in relation to said object until the acoustically audible signal attains a maximum value.
Claim 2
Independent Claim
78 words
A method of adjusting an optical needle sensor in circular knitting machines which with the aid of a light beam sense an object periodically reflecting light varyingly and which monitor the reflected light in respect of variations of a predetermined sequence of intensity fluctuations, which comprises converting the intensity fluctuations into an acoustically audible signal and then varying the alignment of the optical device in relation to said object until the acoustically audible signal attains a maximum value.
Claim 3
Dependent Claim
25 words
The method of claim 1 including supplying a varying electrical signal corresponding to the reflected light and feeding the varying signal to an electroacoustic transducer.
Claim 4
Independent Claim
133 words
A device for determining the optimum positioning of a plurality of optical needle sensors disposed in spaced relationship to the cylinder and dial needles in a circular knitting machine, the sensors producing a series of electrical signals corresponding to the intensity of light reflected from the needles as these needles pass the sensors, the electrical signals being transmitted to an evaluating electronic system controlling the operation of the circular knitting machine, comprising means connected to said sensors to simultaneously receive the electrical signals sent to said evaluating electronic system and converting these signals into correspondingly acoustically audible signals whereby the positioning of said sensors with regard to the path of movement of said needles can be varied to achieve the optimum position corresponding to the maximum acoustically audible signal produced by said means.
Claim 5
Independent Claim
133 words
A device for determining the optimum positioning of a plurality of optical needle sensors disposed in spaced relationship to the cylinder and dial needles in a circular knitting machine, the sensors producing a series of electrical signals corresponding to the intensity of light reflected from the needles as these needles pass the sensors, the electrical signals being transmitted to an evaluating electronic system controlling the operation of the circular knitting machine, comprising means connected to said sensors to simultaneously receive the electrical signals sent to said evaluating electronic system and converting these signals into correspondingly acoustically audible signals whereby the positioning of said sensors with regard to the path of movement of said needles can be varied to achieve the optimum position corresponding to the maximum acoustically audible signal produced by said means.
Claim 6
Dependent Claim
23 words
The device of claim 3 wherein a varying electrical signal corresponding to light reflected from said needles is fed to an electroacoustic transducer.
Claim 7
Dependent Claim
16 words
The device of claim 4 wherein said electroacoustic transducer is a headphone worn by an operator.
Claim 8
Dependent Claim
23 words
The device of claim 4 including amplifier means and a volume control means receiving said signals and feeding them to said electroacoustic transducer.
Claim 9
Dependent Claim
67 words
The device of claim 3 wherein there are separate optical sensors for the cylinder needles and for the dial needles and wherein the electrical signals are fed to said means by two lines branching off from said evaluating electronic system, one of said lines receiving the signals coming from one optical sensor and the other of said lines receiving the signals coming from the other optical sensor.
Claim 10
Dependent Claim
36 words
The device of claim 7 including switch means connected between said electroacoustic transducer and said two lines whereby the signal coming from one or the other optical sensor can be connected selectively to said electroacoustic transducer.
Claim 11
Dependent Claim
34 words
The device of claim 8 wherein said switch means is a change-over switch and said switch is combined with said amplifier means and said volume control means so as to form a single unit.
Claim 12
Dependent Claim
29 words
The device of claim 9 wherein said two optical sensors, said evaluating electronic system, said unit, and said electroacoustic transducer are separate elements which are connected by flexible cables.
References Cited (Backward Citations)
US3385159A
Cited
US3529445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |