US3099048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for automatically controlling the drafting of elongate materials
Assignee: Zellweger Uster AG
•
Filing: 1959-01-02
•
Granted: 1963-07-30
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Locher Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:24
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/32; D01H5/38; D01H5/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
MEANS FOR CONTROLLING MATERIAL DRAFTING OPERATIONS BETWEEN A FIRST PAIR OF DRAFTING ROLLS AND A PAIR OF VARIABLE SPEED DRAFTING ROLLS, SAID MEANS COMPRISING: MEASURING MEANS POSITIONED BEFORE SAID FIRST PAIR OF DRAFTING ROLLS TO DETECT VARIATIONS IN THE MATERIAL PASSING THERETO; COMPENSATING MEANS TO WHICH A SIGNAL FROM SAID MEASURING MEANS IS FED; SUBSTRACTING MEANS COUPLED TO THE DRAFTING ROLLS PROVIDING A SIGNAL INDICATIVE OF THE DIFFERENCE IN ANGULAR SPEED BETWEEN THAT OF THE FIRST PAIR OF DRAFTING ROLLS AND THE VARIABLE SPEED DRAFTING ROLLS, THE DIFFERENCE SIGNAL BEING FED TO SAID COMPENSATING MEANS; REDUCING MEANS INTERPOSED BETWEEN THE VARIABLE SPEED DRAFTING ROLLS AND SAID SUBTRACTING MEANS AND MEANS DIRECTING A CONTROL SIGNAL FROM SAID COMPENSATING MEANS TO A DRIVE FOR SAID
Claim 2
Dependent Claim
123 words
MEANS FOR CONTROLLING MATERIAL DRAFTING OPERATIONS BETWEEN A FIRST PAIR OF DRAFTING ROLLS AND A PAIR OF VARIABLE SPEED DRAFTING ROLLS, SAID MEANS COMPRISING: MEASURING MEANS POSITIONED BEFORE SAID FIRST PAIR OF DRAFTING ROLLS TO DETECT VARIATIONS IN THE MATERIAL PASSING THERETO; COMPENSATING MEANS TO WHICH A SIGNAL FROM SAID MEASURING MEANS IS FED; SUBSTRACTING MEANS COUPLED TO THE DRAFTING ROLLS PROVIDING A SIGNAL INDICATIVE OF THE DIFFERENCE IN ANGULAR SPEED BETWEEN THAT OF THE FIRST PAIR OF DRAFTING ROLLS AND THE VARIABLE SPEED DRAFTING ROLLS, THE DIFFERENCE SIGNAL BEING FED TO SAID COMPENSATING MEANS; REDUCING MEANS INTERPOSED BETWEEN THE VARIABLE SPEED DRAFTING ROLLS AND SAID SUBTRACTING MEANS AND MEANS DIRECTING A CONTROL SIGNAL FROM SAID COMPENSATING MEANS TO A DRIVE FOR SAID
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |