Patent BE515128A successfully refreshed from Google Patents.
Patent US3080798A successfully refreshed from Google Patents.
US3080798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable screed and adjustment linkage therefor
Assignee: Blaw Knox Co
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Filing: 1958-07-15
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Granted: 1963-03-12
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Ray A Mccullough
- 👤 Mccandless Ira Loyal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:23
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A QUICK ADJUSTABLE SCREED COMPRISING A BODY MEMBER AND A BOTTOM MEMBER, A PLURALITY OF LINKAGES AT INTER VALS ALONG THE SCREED CONNECTING THE BODY MEMBER AND BOTTOM MEMBER, EACH LINKAGE COMPRISING A CAM MOUNT ROTATABLE ABOUT A FIXED AXIS, A CAM WITH A CURVED CAM SURFACE ADJUSTABLE FIXED ON EACH MOUNT ECCENTRICALLY OF ITS AXIS OF ROTATION SELECTIVELY MOVABLE THROUGH A RANGE OF POSITIONS RELATIVE TO THE MOUNT TO VARY ITS AMPLITUDE OF THROW, A VERTICAL LINK ASSOCIATED WITH EACH CAM HAVING ITS LOWER END SECURED TO THE BOTTOM MEMBER, A CAM FOLLOWER CONNECTED WITH THE OTHER END OF THE LINK AND ENGAGING THE CURVED CAM SURFACE OF THE CAM WITH WHICH IT IS ASSOCIATED, AND A COMMON OPERATING MEANS FOR
Claim 2
Dependent Claim
122 words
A QUICK ADJUSTABLE SCREED COMPRISING A BODY MEMBER AND A BOTTOM MEMBER, A PLURALITY OF LINKAGES AT INTER VALS ALONG THE SCREED CONNECTING THE BODY MEMBER AND BOTTOM MEMBER, EACH LINKAGE COMPRISING A CAM MOUNT ROTATABLE ABOUT A FIXED AXIS, A CAM WITH A CURVED CAM SURFACE ADJUSTABLE FIXED ON EACH MOUNT ECCENTRICALLY OF ITS AXIS OF ROTATION SELECTIVELY MOVABLE THROUGH A RANGE OF POSITIONS RELATIVE TO THE MOUNT TO VARY ITS AMPLITUDE OF THROW, A VERTICAL LINK ASSOCIATED WITH EACH CAM HAVING ITS LOWER END SECURED TO THE BOTTOM MEMBER, A CAM FOLLOWER CONNECTED WITH THE OTHER END OF THE LINK AND ENGAGING THE CURVED CAM SURFACE OF THE CAM WITH WHICH IT IS ASSOCIATED, AND A COMMON OPERATING MEANS FOR
References Cited (Backward Citations)
US217998A
Cited
US2038498A
Cited
US2150618A
Cited
US2235105A
Cited
US2299700A
Cited
US2351592A
Cited
US2333041A
Cited
US2358085A
Cited
US2473961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |