US3243906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating bucket structure
Assignee: Allis Chalmers Corp
•
Filing: 1963-10-14
•
Granted: 1966-04-05
•
Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Harry H Washbond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:51
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN EXACAVATING BUCKET COMPRISING: A PAIR OF SPACED UPSTANDING SIDE WALLS; A LONGITUDINALLY EXTENDING BOTTOM WALL RIGIDLY SECURED AT ITS LATERALLY OPPOSITE ENDS TO THE LOWER PORTIONS OF SAID SIDE WALLS; A WRAP-AROUND PLATE HAVING A TRANSVERSELY EXTENDING PORTION SECURED TO AND UNDERLYING THE FRONT PORTION OF SAID BOTTOM WALL AND INCLUDING UPSTANDING END PORTIONS HAVING THEIR REAR EDGES BUTT WELDED, RESPECTIVELY, TO THE FRONT EDGES OF SAID SIDE WALLS TO FORM FORWARD EXTENDING CONTINUATIONS OF THE LATTER; A LONGITUDINALLY EXTENDING SUBBOTTOM WALL HAVING A FORWARD PORTION UNDERLYING AND SECURED TO THE REAR PART OF SAID TRANSVERSELY EXTENDING PORTION OF SAID WRAPAROUND PLATE; MEANS VERTICALLY SPACING THE REAR PORTION OF SAID SUBBOTTOM WALL BELOW SAID BOTTOM WALL AND RIGIDLY SECURING SAID SUBBOTTOM WALL TO SAID BOTTOM WALL ALONG ITS WIDTH, AND A WRAP-AROUND CUTTING BLADE CONNECTED TO SAID BOTTOM WALL AND WRAP-AROUND PLATE FORWARDLY OF SAID SUBBOTTOM WALL.
Claim 2
Dependent Claim
148 words
AN EXACAVATING BUCKET COMPRISING: A PAIR OF SPACED UPSTANDING SIDE WALLS; A LONGITUDINALLY EXTENDING BOTTOM WALL RIGIDLY SECURED AT ITS LATERALLY OPPOSITE ENDS TO THE LOWER PORTIONS OF SAID SIDE WALLS; A WRAP-AROUND PLATE HAVING A TRANSVERSELY EXTENDING PORTION SECURED TO AND UNDERLYING THE FRONT PORTION OF SAID BOTTOM WALL AND INCLUDING UPSTANDING END PORTIONS HAVING THEIR REAR EDGES BUTT WELDED, RESPECTIVELY, TO THE FRONT EDGES OF SAID SIDE WALLS TO FORM FORWARD EXTENDING CONTINUATIONS OF THE LATTER; A LONGITUDINALLY EXTENDING SUBBOTTOM WALL HAVING A FORWARD PORTION UNDERLYING AND SECURED TO THE REAR PART OF SAID TRANSVERSELY EXTENDING PORTION OF SAID WRAPAROUND PLATE; MEANS VERTICALLY SPACING THE REAR PORTION OF SAID SUBBOTTOM WALL BELOW SAID BOTTOM WALL AND RIGIDLY SECURING SAID SUBBOTTOM WALL TO SAID BOTTOM WALL ALONG ITS WIDTH, AND A WRAP-AROUND CUTTING BLADE CONNECTED TO SAID BOTTOM WALL AND WRAP-AROUND PLATE FORWARDLY OF SAID SUBBOTTOM WALL.
References Cited (Backward Citations)
US1757328A
Cited
US1921491A
Cited
US1945064A
Cited
US2523958A
Cited
US3014293A
Cited
US3093917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |