US3379593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication method and apparatus for paperboard machine
Assignee: OI Glass Inc
•
Filing: 1964-02-03
•
Granted: 1968-04-23
•
Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Glenn W Maze
- 👤 Alvin B Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:21
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2845; B31F1/2872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A LAMINATING PROCESS INCLUDING LUBRICATION OF THE SLIDING SURFACE IN A DOUBLE BACKER APPARATUS FED WITH A GLUE-TREATED WEB AND A BOTTOM LINER WHICH COMPRISES THE STEPS OF PASSING SAID LINER OVER A PREHEATING ROLL PRIOR TO LAMINATING, INTERMITTENLY SPRAYING UPON SAID ROLL WITH A WATER EMULSION OF A WAX-LIKE MATERIAL, SAID EMULSION COMPRISING OF THE ORDER OF 1% TO 10% OF SAID MATERIAL TO PROVIDE UPON EVAPORATION OF WATER THEREFROM A DEPOSIT TOO THIN FOR COATING FOR IMPREGNATING SAID LINER, TRANSFERRING TO ONLY THE OUTERMOST FIBERS OF THE LOWER SIDE OF SAID LINER MINUTE PORITIONS OF SAID MATERIAL, CONTACTING THE UPPER SIDE OF SAID LINER WITH SAID GLUETREATED WEB TO EFFECT A PRELIMINARY BOND, PRESSING SAID WEB AND LINER OVER HEATED CURING OVENS IN CONTACT THEREWITH, AND CONTINUOUSLY TRANSFERRNG SOME OF SAID MATERIAL TO RUNNING SURFACES OF SAID OVENS TO EFFECT A LUBRICATION THEREOF.
Claim 2
Dependent Claim
145 words
A LAMINATING PROCESS INCLUDING LUBRICATION OF THE SLIDING SURFACE IN A DOUBLE BACKER APPARATUS FED WITH A GLUE-TREATED WEB AND A BOTTOM LINER WHICH COMPRISES THE STEPS OF PASSING SAID LINER OVER A PREHEATING ROLL PRIOR TO LAMINATING, INTERMITTENLY SPRAYING UPON SAID ROLL WITH A WATER EMULSION OF A WAX-LIKE MATERIAL, SAID EMULSION COMPRISING OF THE ORDER OF 1% TO 10% OF SAID MATERIAL TO PROVIDE UPON EVAPORATION OF WATER THEREFROM A DEPOSIT TOO THIN FOR COATING FOR IMPREGNATING SAID LINER, TRANSFERRING TO ONLY THE OUTERMOST FIBERS OF THE LOWER SIDE OF SAID LINER MINUTE PORITIONS OF SAID MATERIAL, CONTACTING THE UPPER SIDE OF SAID LINER WITH SAID GLUETREATED WEB TO EFFECT A PRELIMINARY BOND, PRESSING SAID WEB AND LINER OVER HEATED CURING OVENS IN CONTACT THEREWITH, AND CONTINUOUSLY TRANSFERRNG SOME OF SAID MATERIAL TO RUNNING SURFACES OF SAID OVENS TO EFFECT A LUBRICATION THEREOF.
References Cited (Backward Citations)
US2819986A
Cited
US2964470A
Cited
US2908578A
Cited
US3145118A
Cited
US3189502A
Cited
US3243310A
Cited
US3192052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |