US2981638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back filling of carpets or like operations
Assignee: British Cotton Industry Research Association
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Filing: 1957-08-01
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Granted: 1961-04-25
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Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jones Eric Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:02
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/24; D06B23/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF APPLYING TO A CONTINUOUSLY MOVING WEB OF MATERIAL A PRESCRIBED AMOUNT PER UNIT LENGTH OF A GIVEN SUBSTANCE COMPRISING THE STEPS OF MOVING SAID WEB IN ARCUATE CONTACT WITH PART OF THE SURFACE OF A DRIVEN ROLLER ANOTHER PART OF WHICH DIPS INTO A RESERVOIR NORMALLY CONTAINING A PRESCRIBED AMOUNT OF SAID SUBSTANCE, FEEDING SAID SUBSTANCE IN LIQUID FORM INTO SAID RESERVOIR AT A RATE PROPORTIONAL TO THE SPEED OF THE WEB, SAID RATE BEING CONSTANT AT A CONSTANT SPEED OF THE WEB, SENSING ANY VARIATION IN THE AMOUNT OF SUBSTANCE IN THE RESERVOIR FROM THE PRESCRIBED AMOUNT, AND ALTERING THE SPEED OF SAID DRIVEN ROLLER UPON SENSING ANY VARIATION IN THE AMOUNT OF SAID SUBSTANCE IN THE RESERVOIR FROM THE PRESCRIBED AMOUNT IN ORDER TO COMPENSATE FOR SUCH
Claim 2
Independent Claim
132 words
A METHOD OF APPLYING TO A CONTINUOUSLY MOVING WEB OF MATERIAL A PRESCRIBED AMOUNT PER UNIT LENGTH OF A GIVEN SUBSTANCE COMPRISING THE STEPS OF MOVING SAID WEB IN ARCUATE CONTACT WITH PART OF THE SURFACE OF A DRIVEN ROLLER ANOTHER PART OF WHICH DIPS INTO A RESERVOIR NORMALLY CONTAINING A PRESCRIBED AMOUNT OF SAID SUBSTANCE, FEEDING SAID SUBSTANCE IN LIQUID FORM INTO SAID RESERVOIR AT A RATE PROPORTIONAL TO THE SPEED OF THE WEB, SAID RATE BEING CONSTANT AT A CONSTANT SPEED OF THE WEB, SENSING ANY VARIATION IN THE AMOUNT OF SUBSTANCE IN THE RESERVOIR FROM THE PRESCRIBED AMOUNT, AND ALTERING THE SPEED OF SAID DRIVEN ROLLER UPON SENSING ANY VARIATION IN THE AMOUNT OF SAID SUBSTANCE IN THE RESERVOIR FROM THE PRESCRIBED AMOUNT IN ORDER TO COMPENSATE FOR SUCH
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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |