US3201985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web tension measuring devices
Assignee: British Cellophane Ltd
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Filing: 1962-05-24
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Granted: 1965-08-24
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Expires: 1982-05-24
Abstract
No abstract record available.
Inventors
- 👤 Williams Kenneth Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:55
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/08; B; B65; B65H; B65H23/00; B65H23/04; B65H23/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN APPARATUS FOR MEASURING THE TENSION IN A WEB WHICH APPARATUS COMPRISES AN ARCUATE SURFACE AROUND WHICH THE WEB IS PASSED, THE ARCUATE SURFACE HAVING OPERTURES THROUGH WHICH A GASEOUS MEDIUM CAN BE CUPPLIED UNDER PRESSURE TO PROVIDE A SUPPORTING GASEOUS CUSHION BETWEEN THE UNDER SURFACE OF THE WEB AND THE ARCUATE SURFACE, A SUPPLY MEANS FOR CONTINUOUSLY SUPPLYING THE GASEOUS MEDIUM UNDER PRESSURE TO THE APERTURES, THE ARCUATE SURFACE HAVING AT LEAST TWO TEST-HOLES SPACED APART GENERALLY TRANSVERSELY OF THE WEB FOR COMMUNICATING WITH THE GASEOUS CUSHION AND A PRESSURE MEASURING DEVICE CONNECTED WITH EACH TEST-HOLE FOR DETERMINING THE PRESSURE OF THE GASEOUS MEDIUM IN THE GASEOUS CUSHION IN THE VICINITY OF THE TEST-HOLE.
Claim 2
Independent Claim
115 words
AN APPARATUS FOR MEASURING THE TENSION IN A WEB WHICH APPARATUS COMPRISES AN ARCUATE SURFACE AROUND WHICH THE WEB IS PASSED, THE ARCUATE SURFACE HAVING OPERTURES THROUGH WHICH A GASEOUS MEDIUM CAN BE CUPPLIED UNDER PRESSURE TO PROVIDE A SUPPORTING GASEOUS CUSHION BETWEEN THE UNDER SURFACE OF THE WEB AND THE ARCUATE SURFACE, A SUPPLY MEANS FOR CONTINUOUSLY SUPPLYING THE GASEOUS MEDIUM UNDER PRESSURE TO THE APERTURES, THE ARCUATE SURFACE HAVING AT LEAST TWO TEST-HOLES SPACED APART GENERALLY TRANSVERSELY OF THE WEB FOR COMMUNICATING WITH THE GASEOUS CUSHION AND A PRESSURE MEASURING DEVICE CONNECTED WITH EACH TEST-HOLE FOR DETERMINING THE PRESSURE OF THE GASEOUS MEDIUM IN THE GASEOUS CUSHION IN THE VICINITY OF THE TEST-HOLE.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |