US3116919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large thin sheet handling tool
Assignee: Individual
•
Filing: 1961-05-16
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Granted: 1964-01-07
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Expires: 1981-05-16
Abstract
No abstract record available.
Inventors
- 👤 Alth Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:45
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/18; E04F21/1838; E04F21/1883; E04F21/1888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A HAND OPERATED VACUUM CUP TOOL FOR HOLDING BY MEANS OF SUCTION LARGE SHEETS OF THIN MATERIAL WITHOUT DAMAGE TO SAID SHEETS, SAID TOOL HAVING A LARGE DIAPHRAGM WHICH DEVELOPS THE SUCTION USED TO HOLD THE SHEET OF MATERIAL TO THE TOOL, A TELESCOPING HANDLE, A METAL FRAME MOUNTED AT ONE END OF SAID HANDLE, SAID DIAPHRAGM MOUNTED ON SAID FRAME, A PERFORATED GUARD FIRMLY MOUNTED UPON THE METAL FRAME ABOVE THE DIAPHRAGM, SAID GUARD HAVING A NUMBER OF RAISED SOFT RUBBER RINGS UPON IT WHICH SERVE TO SEAL THE SHEET TO BE HANDLED TO THE TOOL WHEN THE VACUUM IS DEVELOPED AND ALSO SUPPORT THE THIN SHEET SO HELD AND PREVENT IT FROM BEING DEFORMED BY THE VACUUM DEVELOPED WHEN THE DIAPHRAGM IS DISTENDED, A LEVER MOUNTED ON THE HANDLE, MEANS CONNECTING SAID LEVER TO SAID DIAPHRAGM, WHEREBY THE LEVER IS ADAPTED TO OPERATE THE DIAPHRAGM, SAID HANDLE CONSISTING OF TWO OR MORE TELESCOPING LENGTHS ONE OF WHICH IS FITTED WITH A SIMPLE PAWL AND ANOTHER OF WHICH IS FITTED WITH A SIMPLE RATCHET
Claim 2
Dependent Claim
175 words
A HAND OPERATED VACUUM CUP TOOL FOR HOLDING BY MEANS OF SUCTION LARGE SHEETS OF THIN MATERIAL WITHOUT DAMAGE TO SAID SHEETS, SAID TOOL HAVING A LARGE DIAPHRAGM WHICH DEVELOPS THE SUCTION USED TO HOLD THE SHEET OF MATERIAL TO THE TOOL, A TELESCOPING HANDLE, A METAL FRAME MOUNTED AT ONE END OF SAID HANDLE, SAID DIAPHRAGM MOUNTED ON SAID FRAME, A PERFORATED GUARD FIRMLY MOUNTED UPON THE METAL FRAME ABOVE THE DIAPHRAGM, SAID GUARD HAVING A NUMBER OF RAISED SOFT RUBBER RINGS UPON IT WHICH SERVE TO SEAL THE SHEET TO BE HANDLED TO THE TOOL WHEN THE VACUUM IS DEVELOPED AND ALSO SUPPORT THE THIN SHEET SO HELD AND PREVENT IT FROM BEING DEFORMED BY THE VACUUM DEVELOPED WHEN THE DIAPHRAGM IS DISTENDED, A LEVER MOUNTED ON THE HANDLE, MEANS CONNECTING SAID LEVER TO SAID DIAPHRAGM, WHEREBY THE LEVER IS ADAPTED TO OPERATE THE DIAPHRAGM, SAID HANDLE CONSISTING OF TWO OR MORE TELESCOPING LENGTHS ONE OF WHICH IS FITTED WITH A SIMPLE PAWL AND ANOTHER OF WHICH IS FITTED WITH A SIMPLE RATCHET
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |