US3298467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caster brake
Assignee: Darnell Corp Ltd
•
Filing: 1964-10-12
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Granted: 1967-01-17
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Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 William L Darnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:13
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/02; B60B33/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE COMBINATION OF A CASTER INCLUDING A WHEEL HAVING A RESILIENTLY PENETRABLE TIRE ROTATABLE WITHIN A YOKE HAVING A TOP OVERLYING THE WHEEL, AND A BRAKE DEVICE COMPRISING A ONE PIECE PLATE SECURED TO AND PROJECTING OUTWARDLY FROM SAID TOP ABOVE THE WHEEL, SAID PLATE HAVING A PAIR OF GENERALLY PARALLEL SPLITS SEPARATING THE PLATE INTO TRANSVERSELY OUTER SUPPORTING PORTIONS AND AN INTERMEDIATE TONGUE FLEXIBLE DOWNWARDLY INTO BRAKING ENGAGEMENT WITH THE WHEEL, AND A LEVER PIVOTALLY MOUNTED ON SAID OUTER PORTIONS OF THE PLATE AND OPERABLE TO SO FLEX THE TONGUE.
Claim 2
Dependent Claim
91 words
THE COMBINATION OF A CASTER INCLUDING A WHEEL HAVING A RESILIENTLY PENETRABLE TIRE ROTATABLE WITHIN A YOKE HAVING A TOP OVERLYING THE WHEEL, AND A BRAKE DEVICE COMPRISING A ONE PIECE PLATE SECURED TO AND PROJECTING OUTWARDLY FROM SAID TOP ABOVE THE WHEEL, SAID PLATE HAVING A PAIR OF GENERALLY PARALLEL SPLITS SEPARATING THE PLATE INTO TRANSVERSELY OUTER SUPPORTING PORTIONS AND AN INTERMEDIATE TONGUE FLEXIBLE DOWNWARDLY INTO BRAKING ENGAGEMENT WITH THE WHEEL, AND A LEVER PIVOTALLY MOUNTED ON SAID OUTER PORTIONS OF THE PLATE AND OPERABLE TO SO FLEX THE TONGUE.
References Cited (Backward Citations)
US2138433A
Cited
US3117653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |