Patent US3311947A successfully refreshed from Google Patents.
US3311947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device for preparing a continuous product
Assignee: EIDP Inc
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Filing: 1964-05-20
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Granted: 1967-04-04
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Fenley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:58
CPC Classifications
G; G05; G05D; G05D5/00; G05D5/02; G05D5/03; B; B29; B29C; B29C48/00; B29C48/25; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92114; B29C2948/92152; B29C2948/92504; B29C2948/9258; B29C2948/9259; B29C2948/92819; B29C2948/92923; B29C2948/92952; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN AN APPARATUS FOR PREPARING WEB MATERIAL MATERIAL COMPOSED OF A HOPPER ADADPTED TO CONTAIN SAID MATERIAL, AN EXTRUSION ORIFICE JOINED TO SAID HOPPER FOR PASSAGE OF SAID MATERIAL, A ROTATABLE CASTING ROOL TO RECEIVE SAID EXTRUDED MATERIAL AND A WINDUP ROLL TO RECEIVE SAID CAST WEB MATERIAL THE IMPROVEMENT WHICH COMPRISES A CONTROL SYSTEM WITH GOVERNING THE ROTATIONAL SPEED OF CIRCUMFERENTIAL SEGMENTS OF SAID CASTING ROLL PAST SAID ORIFICE SAID SYSTEM HAVING SENSING MEANS FOR MEASURING AND SIGNALLING WEB THICKNESS; CORRECTION SIGNALLING MEANS FOR CREATING A CORRECTIVE SIGNAL BY MEASURING SAID WEB THICKNES SIGNAL AGAINST A REFERENCE SIGNAL AND ADDING A THIRD SIGNAL REPRESENTING SAID CORRECTIVE SIGNAL AND ADDING A THIRD SIGNAL REPRESENTLLY SAID ROLL FOR THE SAME CIRCUMFERENTIAL SEGMENT NOW BEING MEASURED AND ACTUATING MEANS FOR ADJUSTING THE ROTATIONAL SPEED OF SAID CASTING ROLL SEGMENT CORRESPONDING TTO THAT UPON WHICH SAID MEASURED PORTION OF SAID WEB WAS FORMED.
Claim 2
Dependent Claim
150 words
IN AN APPARATUS FOR PREPARING WEB MATERIAL MATERIAL COMPOSED OF A HOPPER ADADPTED TO CONTAIN SAID MATERIAL, AN EXTRUSION ORIFICE JOINED TO SAID HOPPER FOR PASSAGE OF SAID MATERIAL, A ROTATABLE CASTING ROOL TO RECEIVE SAID EXTRUDED MATERIAL AND A WINDUP ROLL TO RECEIVE SAID CAST WEB MATERIAL THE IMPROVEMENT WHICH COMPRISES A CONTROL SYSTEM WITH GOVERNING THE ROTATIONAL SPEED OF CIRCUMFERENTIAL SEGMENTS OF SAID CASTING ROLL PAST SAID ORIFICE SAID SYSTEM HAVING SENSING MEANS FOR MEASURING AND SIGNALLING WEB THICKNESS; CORRECTION SIGNALLING MEANS FOR CREATING A CORRECTIVE SIGNAL BY MEASURING SAID WEB THICKNES SIGNAL AGAINST A REFERENCE SIGNAL AND ADDING A THIRD SIGNAL REPRESENTING SAID CORRECTIVE SIGNAL AND ADDING A THIRD SIGNAL REPRESENTLLY SAID ROLL FOR THE SAME CIRCUMFERENTIAL SEGMENT NOW BEING MEASURED AND ACTUATING MEANS FOR ADJUSTING THE ROTATIONAL SPEED OF SAID CASTING ROLL SEGMENT CORRESPONDING TTO THAT UPON WHICH SAID MEASURED PORTION OF SAID WEB WAS FORMED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |