Patent US3631354A successfully refreshed from Google Patents.
US3631354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the automatic adjustment of a yarn cleaner
Assignee: Machinenfabrik Schweiter AG
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Filing: 1970-02-16
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Granted: 1971-12-28
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Expires: 1990-02-16
Abstract
Abstract An apparatus for the automatic adjustment of a yarn cleaner at a winding machine, such yarn cleaner embodying at least one measuring cell, an amplifier and a pulse shaper. A signal feedback circuit electrically couples the output of the pulse shaper with the input of a control device which by means of its output signal brings about the adjustment of the amplification gain at the aforementioned amplifier. The signal feedback circuit embodies a pulse evaluation circuit which serves to generate an average value signal from a predetermined number of signals appearing at the output side of the pulse shaper.
Inventors
- 👤 Hermann Werffeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:14
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/06; B65H63/062; B65H63/065; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
113 words
In combination with a yarn cleaner of a winding machine which yarn cleaner is of the type incorporating at least one measuring cell, an amplifier and a pulse shaper, an apparatus for the automatic adjustment of such yarn cleaner which comprises a control device electrically coupled with said amplifier, a signal feedback circuit electrically coupling the output of said pulse shaper with the input of said control device, the output of said control device being used for adjusting the amplification gain of said amplifier, said signal feedback circuit comprising a pulse evaluation circuit for generating an average value signal from a predetermined number of signals appearing at said output of said pulse shaper.
Claim 2
Dependent Claim
113 words
In combination with a yarn cleaner of a winding machine which yarn cleaner is of the type incorporating at least one measuring cell, an amplifier and a pulse shaper, an apparatus for the automatic adjustment of such yarn cleaner which comprises a control device electrically coupled with said amplifier, a signal feedback circuit electrically coupling the output of said pulse shaper with the input of said control device, the output of said control device being used for adjusting the amplification gain of said amplifier, said signal feedback circuit comprising a pulse evaluation circuit for generating an average value signal from a predetermined number of signals appearing at said output of said pulse shaper.
Claim 3
Dependent Claim
28 words
The combination defined in claim 1, wherein said pulse evaluation circuit embodies a pulse counter mechanism, an integrator and prestorage circuit means and a main storage circuit means.
Claim 4
Dependent Claim
41 words
The combination defined in claim 2, wherein said output of said pulse shaper of the yarn cleaner is electrically coupled with the input of said integrator and prestorage circuit means as well as with the input of said pulse counter mechanism.
Claim 5
Dependent Claim
68 words
The combination defined in claim 3, wherein the output of said pulse counter mechanism is electrically coupled via control conductor means with both said prestorage circuit means and said main storage circuit means, in order to transmit a prestored signal from said prestorage circuit means to said main storage circuit means and for extinguishing the signals stored in said prestorage circuit means and said main storage circuit means.
Claim 6
Dependent Claim
32 words
The combination defined in claim 4, wherein said prestorage circuit means and said main storage circuit means incorporate respective switch means, said control conductor means being electrically coupled with said switch means.
Claim 7
Dependent Claim
40 words
The combination defined in claim 5, wherein said prestorage circuit means includes a capacitor connected in parallel with a switch means thereof, and wherein said main storage circuit means includes a capacitor connected in parallel with a switch means thereof.
Claim 8
Dependent Claim
34 words
The combination defined in claim 4, wherein said pulse counter mechanism includes an output side formed by a timing element for the programmed control of the output signals thereof via said control conductor means.
Claim 9
Dependent Claim
14 words
The combination defined in claim 1, wherein said control device comprises a bridge arrangement.
Claim 10
Dependent Claim
13 words
The combination defined in claim 1, wherein said control device comprises a thermistor.
Claim 11
Dependent Claim
20 words
The combination defined in claim 1, further including a manually actuated precontrol device connected in parallel with said control device.
Claim 12
Dependent Claim
22 words
The combination defined in claim 2, whereiN said pulse counter mechanism comprises frequency divider means formed by a number of bistable units.
Claim 13
Dependent Claim
23 words
The combination defined in claim 1, wherein said pulse shaper of said yarn feeler is capable of being controlled by said winding machine.
Claim 14
Dependent Claim
20 words
The combination defined in claim 1, further including pulse transmitter means for controlling said pulse shaper of said yarn cleaner.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |