Patent US2877140A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2877140A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for cooling and setting wax coatings on paper

Assignee: Waxide Paper Co
•
Filing: 1953-10-12
•
Granted: 1959-03-10
•
Expires: 1973-10-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Carl P Olstad

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 13:05
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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag