Method of carton sealing
Abstract
Abstract A MACHINE IS PROVIDED WHICH SEALS THE BOTTOM FLAPS OF EMPTY CARDBOARD CARTONS. IT COMPRISES MEANS TO RECEIVE PARTIALLY SET UP CARTONS, MEANS TO FIRST APPLY MELTED THERMOPLASTIC POLYMERIC RESINOUS ADHESIVE (KNOWN NORMALLY AS "HOT MELT" ADHESIVE) TO CLOSE FORWARD AND REAR LOWER FLAPS, MEANS TO THEN APPLY WATER SOLUBLE ADHESIVE TO OTHER AREAS OF THE SAME FLAPS, MEANS TO THEN CLOSE THE SIDE LOWER FLAPS AGAINST THE FLAPS TO WHICH ADHESIVE HAS BEEN APPLIED, MEANS TO SQUARE THE CARTON PRIOR TO APPLY PRESSURE, AND MEANS TO APPLY PRESSURE FROM ABOVE THROUGH THE INTERIOR OF THE CARTON AGAINST THE BOTTOM OF THE CARTON COMPRISING SAID FLAPS WHILE AT THE SAME TIME SUPPORTING SAID FLAPS FROM THE BOTTOM TO RESIST THE PRESSURE APPLIED FROM ABOVE.
Inventors
- 👤 Morris P Neal
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |