Vacuum packing apparatus
Abstract
Abstract A MACHINE FOR VACUUM PACKAGING ITEMS OF IREEGULAR SHAPE AND SIZE IN TUBULAR FLEXIBLE PLASTIC FILM COMPRISING A TUBULAR NECK WITH OPEN FRONT AND REAR ENDS ABOUT WHICH A SUPPLY OF TUBULAR FILM STOCK IS ENGAGED, MEANS SPACED FORWARD OF THE NECK TO TIE, CLIP OR SEAL THE FRONT END OF THE FILM STOCK IN CLOSED CONDITION, MEANS FOR URGING AN ITEM TO BE PACKAGED FORWARD INTO THE REAR END OF, THROUGH AND FROM THE FRONT END OF THE NECK AND SUCTION MEANS AT THE FRONT END OF THE NECK TO EVACUATE FLUID AND AIR FROM BETWEEN THE FILM STOCK AND THE ITEM AS THE ITEM AND FILM STOCK MOVES FORWARDLY FROM THE NECK, SAID MEANS TO TIE, CLIP OR SEAL THE FRONT END OF THE FILM STOCK CLOSED AND ADAPTED TO SIMILARLY CLOSE THE ORTION OF THE FILM STOCK ADJACENT THE REAR END OF THE PACKAGED ITEM.
Inventors
- 👤 James W Marietta Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |