US3661626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating a flexible web
Assignee: Procter and Gamble Co
•
Filing: 1970-05-08
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Granted: 1972-05-09
•
Expires: 1990-05-08
Abstract
Abstract A method of applying a uniform coating of a soft, pliant material or the like, e.g. wax, on a continuous flexible web to coat a surface of the web with minute quantities of the pliant material. The coating is carried out by placing the web in surface contact with a coating roll made from the pliant material. The web is moved and the roll is turned such that there is a speed differential, i.e. slip, between the contacting surfaces of the roll and the web. The movement of the web over the peripheral surface of the roll in this manner uniformly coats the web with minute amounts of material transferred to the web from the roll surface.
Inventors
- 👤 Charles L Wosaba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:30
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H23/58; D04; D04H; D04H1/00; D06; D06B; D06B1/00; D06B1/10; D06B1/14; D21H5/00; D21H5/0005; D21H5/0025; D21H5/003; D21H5/0032
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
A method of coating as claimed in claim 1 including the step of passing a flexible web of nonwoven material over the transfer roll surface.
Claim 2
Dependent Claim
24 words
A method of coating a flexible web as claimed in claim 1 including the step of providing a transfer roll made from paraffin wax.
Claim 3
Dependent Claim
34 words
A method of coating as claimed in claim 1 including the steps of passing a flexible web of nonwoven material over the transfer roll surface and providing a transfer roll made from paraffin wax.
References Cited (Backward Citations)
US257761A
Cited
US1351408A
Cited
US1768895A
Cited
US2014127A
Cited
US2352658A
Cited
US2565036A
Cited
US2987034A
Cited
US3319012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |