Patent US3075800A successfully refreshed from Google Patents.
US3075800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally gripping article transferring apparatus
Assignee: Lodge and Shipley Co
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Filing: 1962-03-29
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Granted: 1963-01-29
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Edward F Rowekamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:05
CPC Classifications
B; B65; B65B; B65B21/00; B65B21/02; B65B21/08; B65B21/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A DEVICE FOR USE WITH ARTICLE TRANSFERRING APPARATUS TO ENGAGE AND LIFT OPEN MOUTHED CONTAINERS COMPRISING: A SHELL HAVING A HOLLOW INTERIOR TO PROVIDE A CYLINDER WHICH IS OPEN AT THE BOTTOM, THE LOWER PORTION OF SAID SHELL HAVING EXTERNAL SCREW THREADS THEREON, A FLEXIBLE HOSE CONNECTED TO THE TOP OF SAID SHELL AND PROVIDING PASSAGEWAY FOR AIR UNDER PRESSURE TO THE TOP OF SAID CYLINDER, A PISTON IN SAID CYLINDER ADAPTED TO MOVE DOWNWARDLY UPON THE APPLICATION OF AIR UNDER PRESSURE TO THE TOP OF SAID CYLINDER, MEANS ON THE UNDERSIDE OF SAID PISTON PROVIDING CAM SURFACE WHICH EXTEND DOWNWARDLY AND OUTWARDLY WITH RESPECT TO A VERTICAL CENTRAL AXIS OF SAID PISTON, A MOUTHPIECE HAVING INTERNAL SCREW THREADS ENGAGING THE EXTERNAL SCREW THREADS ON THE LOWER END OF SAID SHELL AND PRESENTING AND ANNULAR SHELF TOWARD THE BOTTOM OF SAID SHELL, A DISC ASSEMBLY SEATED ON SAID ANNULAR SHELF AND HELD AGAINST THE LOWER END OF SAID SHELL BY SAID MOUTHPIECCE, SPRING MEANS WITHIN SAID SHELL NORMALLY URGING SAID PISTON TOWARD AN ELEVATED POSITION WITHIN THE CYLINDER, A PAIR OF ELONGATED FINGERS, MEANS TO PIVOTALLY MOUNT SAID FINGERS IN SAID DISC ASSEMBLY FOR SWINGING MOVEMENT OF THEIR LOWER ENDS TOWARD AND AWAY FROM ONE ANOTHER IN A VERTICAL PLANE WHICH IS COMMON TO THE VERTICAL CENTRAL AXIS OF SAID CYLINDER
Claim 2
Independent Claim
221 words
A DEVICE FOR USE WITH ARTICLE TRANSFERRING APPARATUS TO ENGAGE AND LIFT OPEN MOUTHED CONTAINERS COMPRISING: A SHELL HAVING A HOLLOW INTERIOR TO PROVIDE A CYLINDER WHICH IS OPEN AT THE BOTTOM, THE LOWER PORTION OF SAID SHELL HAVING EXTERNAL SCREW THREADS THEREON, A FLEXIBLE HOSE CONNECTED TO THE TOP OF SAID SHELL AND PROVIDING PASSAGEWAY FOR AIR UNDER PRESSURE TO THE TOP OF SAID CYLINDER, A PISTON IN SAID CYLINDER ADAPTED TO MOVE DOWNWARDLY UPON THE APPLICATION OF AIR UNDER PRESSURE TO THE TOP OF SAID CYLINDER, MEANS ON THE UNDERSIDE OF SAID PISTON PROVIDING CAM SURFACE WHICH EXTEND DOWNWARDLY AND OUTWARDLY WITH RESPECT TO A VERTICAL CENTRAL AXIS OF SAID PISTON, A MOUTHPIECE HAVING INTERNAL SCREW THREADS ENGAGING THE EXTERNAL SCREW THREADS ON THE LOWER END OF SAID SHELL AND PRESENTING AND ANNULAR SHELF TOWARD THE BOTTOM OF SAID SHELL, A DISC ASSEMBLY SEATED ON SAID ANNULAR SHELF AND HELD AGAINST THE LOWER END OF SAID SHELL BY SAID MOUTHPIECCE, SPRING MEANS WITHIN SAID SHELL NORMALLY URGING SAID PISTON TOWARD AN ELEVATED POSITION WITHIN THE CYLINDER, A PAIR OF ELONGATED FINGERS, MEANS TO PIVOTALLY MOUNT SAID FINGERS IN SAID DISC ASSEMBLY FOR SWINGING MOVEMENT OF THEIR LOWER ENDS TOWARD AND AWAY FROM ONE ANOTHER IN A VERTICAL PLANE WHICH IS COMMON TO THE VERTICAL CENTRAL AXIS OF SAID CYLINDER
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |