US3348738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing hopper having a container opener
Assignee: General Refractories Co
•
Filing: 1965-12-21
•
Granted: 1967-10-24
•
Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ronald G Hertlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:16
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/26; B65D88/28; B65D90/00; B65D90/54; B65D90/58; B65D90/582; B65D2590/00; B65D2590/54; B65D2590/547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN OPENER ASSEMBLY FOR USE WITH A CONTAINER TO FACILITATE DISCHARGE OF THE CONTENTS OF THE CONTAINER COMPRISING A FRAME STRUCTURE INCLUDING A DECK ON WHICH THE CONTAINER SEATS, A HOPPER HAVING A LOWER DISCHARGE OPENING DEPENDING FROM THE DECK, A GATE COOPERATIVELY ASSOCATED WITH SAID DISCHARGE OPENING AND ADAPTED FOR MOVEMENT BETWEEN A FIRST POSITION CLOSING SAID DISCHARGE OPENING AND A SECOND POSITION REMOTE THEREFROM TO PERMIT DISCHARGE OF MATERIAL THROUGH SAID DISCHARGE OPENING, A CUTTING BLADE MOUNTED ON THE UPPER OPEN END OF THE HOPPER COMRPISING AN ELONGATED CENTRAL SECTION OF W-SHAPED PROFILE HAVING A CENTRAL PEAK HIGHER THAN THE END PEAKS AND A PAIR OF INVERTED V-SHAPED SECTIONS NORMAL TO THE CENTRAL SECTION AND DISPOSED ONE AT EACH END OF THE CENTRAL SECTION, THE CREST OF THE V BEING IN THE SAME PLANE AS THE END PEAKS OF THE CENTRAL SECTION.
Claim 2
Dependent Claim
144 words
AN OPENER ASSEMBLY FOR USE WITH A CONTAINER TO FACILITATE DISCHARGE OF THE CONTENTS OF THE CONTAINER COMPRISING A FRAME STRUCTURE INCLUDING A DECK ON WHICH THE CONTAINER SEATS, A HOPPER HAVING A LOWER DISCHARGE OPENING DEPENDING FROM THE DECK, A GATE COOPERATIVELY ASSOCATED WITH SAID DISCHARGE OPENING AND ADAPTED FOR MOVEMENT BETWEEN A FIRST POSITION CLOSING SAID DISCHARGE OPENING AND A SECOND POSITION REMOTE THEREFROM TO PERMIT DISCHARGE OF MATERIAL THROUGH SAID DISCHARGE OPENING, A CUTTING BLADE MOUNTED ON THE UPPER OPEN END OF THE HOPPER COMRPISING AN ELONGATED CENTRAL SECTION OF W-SHAPED PROFILE HAVING A CENTRAL PEAK HIGHER THAN THE END PEAKS AND A PAIR OF INVERTED V-SHAPED SECTIONS NORMAL TO THE CENTRAL SECTION AND DISPOSED ONE AT EACH END OF THE CENTRAL SECTION, THE CREST OF THE V BEING IN THE SAME PLANE AS THE END PEAKS OF THE CENTRAL SECTION.
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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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |