Patent US3394528A successfully refreshed from Google Patents.
US3394528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for vacuum sealing casings and the like
Assignee: Rheem Manufacturing Co
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Filing: 1966-04-26
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Granted: 1968-07-30
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Maynard J G Tipper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:43
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A VACUUM SEALING APPARATUS FOR EVACUATING A BAG CONTAINING A PRODUCT AND THEREAFTER SEALING SAID BAG, A VACUUM CONDUIT CONNECTED WITH A SOURCE OF VACUUM AND FORMED AT ONE END FOR INSERTION INTO THE MOUTH OF SAID BAG, A SEALING DEVICE FOR APPLYING AN AIR TIGHT SEAL TO THE MOUTH OF SAID BAG, SAID CONDUIT BEING SUPPORTED FOR MOVEMENT OF SAID ONE END FROM A NORMAL POSITION SPACED FROM SAID SEALING DEVICE TO A SEALING POSITION ADJACENT SAID DEVICE, A NORMALLY CLOSED VACUUM VALVE FOR CONTROLLING THE VACUUM APPLIED TO SAID ONE END, ACTUATING MEANS FOR ACTUATING SAID VACUUM VALVE, MEANS INTERCONNECTING SAID CONDUIT WITH SAID ACTUATING MEANS WHEN SAID CONDUIT IS IN NORMAL POSITION FOR MOVING SAID ACTUATING MEANS TO A POSITION OPENING SAID VACUUM VALVE WHEN SAID CONDUIT IS MOVED FROM SAID NORMAL POSITION TOWARD SAID SEALING POSITION, AND MEANS OPERATIVELY CONNECTING SAID SEALING DEVICE AND SAID ACTUATING MEANS FOR CLOSING SAID VACUUM VALVE AUTOMATICALLY UPON ACTIVATION OF SAID SEALING DEVICE.
Claim 2
Dependent Claim
164 words
IN A VACUUM SEALING APPARATUS FOR EVACUATING A BAG CONTAINING A PRODUCT AND THEREAFTER SEALING SAID BAG, A VACUUM CONDUIT CONNECTED WITH A SOURCE OF VACUUM AND FORMED AT ONE END FOR INSERTION INTO THE MOUTH OF SAID BAG, A SEALING DEVICE FOR APPLYING AN AIR TIGHT SEAL TO THE MOUTH OF SAID BAG, SAID CONDUIT BEING SUPPORTED FOR MOVEMENT OF SAID ONE END FROM A NORMAL POSITION SPACED FROM SAID SEALING DEVICE TO A SEALING POSITION ADJACENT SAID DEVICE, A NORMALLY CLOSED VACUUM VALVE FOR CONTROLLING THE VACUUM APPLIED TO SAID ONE END, ACTUATING MEANS FOR ACTUATING SAID VACUUM VALVE, MEANS INTERCONNECTING SAID CONDUIT WITH SAID ACTUATING MEANS WHEN SAID CONDUIT IS IN NORMAL POSITION FOR MOVING SAID ACTUATING MEANS TO A POSITION OPENING SAID VACUUM VALVE WHEN SAID CONDUIT IS MOVED FROM SAID NORMAL POSITION TOWARD SAID SEALING POSITION, AND MEANS OPERATIVELY CONNECTING SAID SEALING DEVICE AND SAID ACTUATING MEANS FOR CLOSING SAID VACUUM VALVE AUTOMATICALLY UPON ACTIVATION OF SAID SEALING DEVICE.
References Cited (Backward Citations)
US3237366A
Cited
US3304687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |