Patent US3143328A successfully refreshed from Google Patents.
US3143328A
Expired / Lapsed
US
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Scaffolding device
Assignee: Individual
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Filing: 1961-11-13
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Granted: 1964-08-04
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Damiano Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:57
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/10; E01D19/106; E04; E04G; E04G5/00; E04G5/04; E04G5/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A SCAFFOLDING DEVICE FOR ATTACHMENT TO AN ELONGATED STRUCTURE OF I SHAPE CROSS SECTION HAVING AT EACH END OF A WEB A PAIR OF OPPOSITELY EXTENDING COMPANION FLANGES COMPRISING IN COMBINATION: (A) A BEAM HAVING A PLANAR SURFACE TO ENGAGE AN OUTER SURFACE OF THE LATERALLY PROJECTING FLANGES OF SAID STRUCTURE WHILE ARRANGED AT RIGHT ANGLES THERETO, (B) AN UPSTANDING INVERTED L SHAPE BRACKET ATTACHED TO SAID BEAM WITH AN ARM OF THE BRACKET FOR OVERHANGING THE INNER SURFACE OF ONE OF THE LATERAL FLANGES OF THE STRUCTURE, (C) MEANS EXTENDING THROUGH SAID ARM FOR ENGAGING SAID OVERHUNG INNER SURFACE, (D) A YOKE MOVABLE ON SAID BEAM TOWARD AND FROM SAID BRACKET, AND (E) A LEVER FULCRUMED INTERMEDIATE ITS ENDS ON SAID YOKE WITH ONE END ENGAGING THE INNER SURFACE OF THE COMPANION LATERAL FLANGE OF THE STRUCTURE AND MEANS TO SWING THE LEVER ABOUT THE FULCRUM TO ASSIST IN CLAMPING THE BEAM TO THE SAID STRUCTURE.
Claim 2
Dependent Claim
157 words
A SCAFFOLDING DEVICE FOR ATTACHMENT TO AN ELONGATED STRUCTURE OF I SHAPE CROSS SECTION HAVING AT EACH END OF A WEB A PAIR OF OPPOSITELY EXTENDING COMPANION FLANGES COMPRISING IN COMBINATION: (A) A BEAM HAVING A PLANAR SURFACE TO ENGAGE AN OUTER SURFACE OF THE LATERALLY PROJECTING FLANGES OF SAID STRUCTURE WHILE ARRANGED AT RIGHT ANGLES THERETO, (B) AN UPSTANDING INVERTED L SHAPE BRACKET ATTACHED TO SAID BEAM WITH AN ARM OF THE BRACKET FOR OVERHANGING THE INNER SURFACE OF ONE OF THE LATERAL FLANGES OF THE STRUCTURE, (C) MEANS EXTENDING THROUGH SAID ARM FOR ENGAGING SAID OVERHUNG INNER SURFACE, (D) A YOKE MOVABLE ON SAID BEAM TOWARD AND FROM SAID BRACKET, AND (E) A LEVER FULCRUMED INTERMEDIATE ITS ENDS ON SAID YOKE WITH ONE END ENGAGING THE INNER SURFACE OF THE COMPANION LATERAL FLANGE OF THE STRUCTURE AND MEANS TO SWING THE LEVER ABOUT THE FULCRUM TO ASSIST IN CLAMPING THE BEAM TO THE SAID STRUCTURE.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |