Patent US4815341A successfully refreshed from Google Patents.
Patent US2877140A successfully refreshed from Google Patents.
US2877140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cooling and setting wax coatings on paper
Assignee: Waxide Paper Co
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Filing: 1953-10-12
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Granted: 1959-03-10
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Expires: 1973-10-12
Abstract
No abstract record available.
Inventors
- 👤 Carl P Olstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:28
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
241 words
IN A METHOD OF SETTING A COATING OF MOLTEN WAX MATERIAL UPON AN ELONGATED PIECE OF PAPER WHILE THE LATTER IS ADVANCED ALONG A PREDETERMINED PATH OF TRAVEL AT HIGH SPEED, THE IMPROVED STEPS OF COOLING A CYLINDRICAL BODY TO AND MAINTAINING THE SAME AT A PREDETERMINED TEMPERATURE SUBSTANTIALLY BELOW THE SOLIDIFYING TEMPERATURE OF SAID MOLTEN WAX AND SUFFICIENTLY LOW TO NORMALLY FORM MINUTE CRACKS IN THE WAX AS THE SAME SOLDIFIES WHEN THE COATED PAPER IS BROUGHT INTO DIRECT CONTACT WITH THE BODY; COOLING A QUANTITY OF LIQUID TO AND MAINTAINING THE SAME AT A PREDETERMINED TEMPERATURE, SAID BODY BEING PARTIALY SUBMERGED IN SAID LIQUID; CONTINUOUSLY ROTATING SAID BODY ON ITS AXIS AT SUBSTANTIALY THE SPEED OF ADVANCEMENT OF SAID PAPER TO CAUSE A UNIFORM FILM OF SAID LIQUID TO ADHERE TO AND BE MAINTAINED ON THE EXPOSED PERIPHERAL SURFACE OF SAID BODY AS THE LATTER IS ROTATED; AND PLACING SAID COATED PIECE OF PAPER IN PROXIMITY TO SIAD EXPOSED PERIPHERAL SURFACE OF THE BODY WITH SAID COATING IN HEAT TRANSFER, CONTACTING RELATIONSHIP WITH SAID FILM AND AS THE PAPER IS ADVANCED AT SAID SPEED, THE TEMPERATURE OF SAID LIQUID BEING ABOVE THE TEMPERATURE OF SAID BODY BUT BELOW THE SOLIDIFYING TEMPERATURE OF SAID MOLTEN WAX AND CORRELATED WITH THE TEMPERATURE OF SAID BODY TO ASSURE THAT SAID FILM GRADUALLY REMOVES HEAT FROM THE WAX AS THE PAPER IS ADVANCED OVER THE BODY TO THEREBY PREVENT CRACKING OF SAID COATING.
Claim 2
Dependent Claim
241 words
IN A METHOD OF SETTING A COATING OF MOLTEN WAX MATERIAL UPON AN ELONGATED PIECE OF PAPER WHILE THE LATTER IS ADVANCED ALONG A PREDETERMINED PATH OF TRAVEL AT HIGH SPEED, THE IMPROVED STEPS OF COOLING A CYLINDRICAL BODY TO AND MAINTAINING THE SAME AT A PREDETERMINED TEMPERATURE SUBSTANTIALLY BELOW THE SOLIDIFYING TEMPERATURE OF SAID MOLTEN WAX AND SUFFICIENTLY LOW TO NORMALLY FORM MINUTE CRACKS IN THE WAX AS THE SAME SOLDIFIES WHEN THE COATED PAPER IS BROUGHT INTO DIRECT CONTACT WITH THE BODY; COOLING A QUANTITY OF LIQUID TO AND MAINTAINING THE SAME AT A PREDETERMINED TEMPERATURE, SAID BODY BEING PARTIALY SUBMERGED IN SAID LIQUID; CONTINUOUSLY ROTATING SAID BODY ON ITS AXIS AT SUBSTANTIALY THE SPEED OF ADVANCEMENT OF SAID PAPER TO CAUSE A UNIFORM FILM OF SAID LIQUID TO ADHERE TO AND BE MAINTAINED ON THE EXPOSED PERIPHERAL SURFACE OF SAID BODY AS THE LATTER IS ROTATED; AND PLACING SAID COATED PIECE OF PAPER IN PROXIMITY TO SIAD EXPOSED PERIPHERAL SURFACE OF THE BODY WITH SAID COATING IN HEAT TRANSFER, CONTACTING RELATIONSHIP WITH SAID FILM AND AS THE PAPER IS ADVANCED AT SAID SPEED, THE TEMPERATURE OF SAID LIQUID BEING ABOVE THE TEMPERATURE OF SAID BODY BUT BELOW THE SOLIDIFYING TEMPERATURE OF SAID MOLTEN WAX AND CORRELATED WITH THE TEMPERATURE OF SAID BODY TO ASSURE THAT SAID FILM GRADUALLY REMOVES HEAT FROM THE WAX AS THE PAPER IS ADVANCED OVER THE BODY TO THEREBY PREVENT CRACKING OF SAID COATING.
References Cited (Backward Citations)
US2732319A
Cited
US1831624A
Cited
US2083273A
Cited
US2097417A
Cited
US2117200A
Cited
US2157388A
Cited
US2304818A
Cited
US2360919A
Cited
US2565063A
Cited
US2642366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |