Patent US3283640A successfully refreshed from Google Patents.
US3283640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor bolt
Assignee: Individual
•
Filing: 1965-02-10
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Granted: 1966-11-08
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Ono Teizo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/066; F16B13/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
254 words
AN ANCHOR ADAPTED FOR BEING SECURED IN A HOLE AND ENGAGE A BOLT, SAID ANCHOR COMPRISING A FRONT RING A STOP RING, AT LEAST ONE EXPANSIBLE RING AND A NUT RING IN THAT ORDER IN AN AXIAL ARRANGEMENT, SAID FRONT RING HAVING A BORE WHICH AT THE END REMOTE FROM THE STOP RING IS CYLINDRICAL AND AT THE END ADJACENT THE STOP RING IS CONICAL, SAID FRONT RING HAVING AXIAL SLITS AT THE END ADJACENT THE STOP RING, SAID STOP RING HAVING AN OUTER PERIPHERAL SURFACE WITH OPPOSITELY TAPERING CONICAL SURFACES ONE OF WHICH MATCHES THE CONICAL BORE OF THE FRONT RING TO ENTER THE SAME, AND A RADIALLY ENLARGED INTERMEDIATE PORTION WITH RADIALLY EXTENDING TEETH, SAID EXPANSIBLE RING HAVING A BORE WHICH AT THE END ADJACENT THE STOP RING IS TAPERED AND MATCHES THE OTHER OF THE CONICAL SURFACES OF THE STOP RING TO RECEIVE THE SAME, SAID EXPANSIBLE RING INCLUDING AN EXTERNALLY TAPERED PORTION AT AN END ADJACENT THE NUT RING AND EXTERNAL PROTRUSIONS EXTENDING TOWARDS THE OTHER END, SAID EXPANSIBLE RING BEING PROVIDED WITH SLITS EXTENDING AXIALLY FROM THE END ADJACENT THE STOP RING TOWARDS THE OTHER END, SAID NUT RING HAVING AN INNNER BORE WITH A PORTION REMOTE FROM THE EXPANSIBLE RING WHICH IS THREADED FOR ENGAGING A BOLT AND A PORTION ADJACENT THE EXPANSIBLE RING WHICH IS TAPERED TO MATCH THE TAPERED PORTION OF THE EXPANSIBLE RING TO RECEIVE THE SAME, SAID NUT RING HAVING SLITS EXTENDING AXIALLY FROM THE END ADJACENT THE EXPANSIBLE RING TOWARDS ITS OTHER END.
Claim 2
Dependent Claim
254 words
AN ANCHOR ADAPTED FOR BEING SECURED IN A HOLE AND ENGAGE A BOLT, SAID ANCHOR COMPRISING A FRONT RING A STOP RING, AT LEAST ONE EXPANSIBLE RING AND A NUT RING IN THAT ORDER IN AN AXIAL ARRANGEMENT, SAID FRONT RING HAVING A BORE WHICH AT THE END REMOTE FROM THE STOP RING IS CYLINDRICAL AND AT THE END ADJACENT THE STOP RING IS CONICAL, SAID FRONT RING HAVING AXIAL SLITS AT THE END ADJACENT THE STOP RING, SAID STOP RING HAVING AN OUTER PERIPHERAL SURFACE WITH OPPOSITELY TAPERING CONICAL SURFACES ONE OF WHICH MATCHES THE CONICAL BORE OF THE FRONT RING TO ENTER THE SAME, AND A RADIALLY ENLARGED INTERMEDIATE PORTION WITH RADIALLY EXTENDING TEETH, SAID EXPANSIBLE RING HAVING A BORE WHICH AT THE END ADJACENT THE STOP RING IS TAPERED AND MATCHES THE OTHER OF THE CONICAL SURFACES OF THE STOP RING TO RECEIVE THE SAME, SAID EXPANSIBLE RING INCLUDING AN EXTERNALLY TAPERED PORTION AT AN END ADJACENT THE NUT RING AND EXTERNAL PROTRUSIONS EXTENDING TOWARDS THE OTHER END, SAID EXPANSIBLE RING BEING PROVIDED WITH SLITS EXTENDING AXIALLY FROM THE END ADJACENT THE STOP RING TOWARDS THE OTHER END, SAID NUT RING HAVING AN INNNER BORE WITH A PORTION REMOTE FROM THE EXPANSIBLE RING WHICH IS THREADED FOR ENGAGING A BOLT AND A PORTION ADJACENT THE EXPANSIBLE RING WHICH IS TAPERED TO MATCH THE TAPERED PORTION OF THE EXPANSIBLE RING TO RECEIVE THE SAME, SAID NUT RING HAVING SLITS EXTENDING AXIALLY FROM THE END ADJACENT THE EXPANSIBLE RING TOWARDS ITS OTHER END.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |