US3207342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front end loader
Assignee: NP Nelson Inc
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Filing: 1963-02-25
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Granted: 1965-09-21
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Paul J Trojan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:18
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/345; E02F3/3405; E02F3/3408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
IN A SIDE DUMP LOADER, A BUCKET CARRIER, A FRONT LOADING BUCKET SUPPORTABLE ON SAID CARRIER IN PREDUMPING POSITION, PIVOT MEANS CONNECTED TO SAID BUCKET OUTWARDLY OF SAID CARRIER FOR PIVOTING SAID BUCKET FROM SAID PREDUMPING POSITION TO A DUMPING POSITON LATERALLY OF THE CARRIER, A BUCKET ACTUATING MECHANISM INCLUDING A FIRST ACTUATOR CONNECTOR TO SAID CARRIER AND SAID BUCKET TO EFFECT SAID PIVOTING , A BUCKET LOCKING MECHANISM INCLUDING A SECOND ACTUATOR MOUNTED INDEPENDENTLY OF SAID FIRST ACTUATOR FOR RELEASABLY LATCHING SAID BUCKET TO SAID CARRIER IN SAID PREDUMPING POSITION, WHEREBY THE FORCE EXERTED BY SAID FIRST ACTUATOR IN PIVOTING SAID BUCKET IS NOT TRANSMITTED TO SAID SECOND ACTUATOR, AND MEANS FOR SUPPLYING POWER OF AN OPERATING VALUE FROM A COMMON SOURCE TO BOTH OF SAID ACTUATORS SIMULTANEOUSLY, SAID FIRST ACTUATOR HAVING A SUBSTANTIAL GREATER OPERATING AREA THAN THE OPERATING AREA OF THE SECOND ACTUATOR AND DERIVING A SUBSTANTIALLY GREATER OPERATING FORCE THEREON FROM SAID OPERATING VALUE OF POWER THAN THAT DERIVED BY SAID SECOND ACTUATOR, SAID SECOND ACTUATOR OPERATING IN RESPONSE TO
Claim 2
Dependent Claim
174 words
IN A SIDE DUMP LOADER, A BUCKET CARRIER, A FRONT LOADING BUCKET SUPPORTABLE ON SAID CARRIER IN PREDUMPING POSITION, PIVOT MEANS CONNECTED TO SAID BUCKET OUTWARDLY OF SAID CARRIER FOR PIVOTING SAID BUCKET FROM SAID PREDUMPING POSITION TO A DUMPING POSITON LATERALLY OF THE CARRIER, A BUCKET ACTUATING MECHANISM INCLUDING A FIRST ACTUATOR CONNECTOR TO SAID CARRIER AND SAID BUCKET TO EFFECT SAID PIVOTING , A BUCKET LOCKING MECHANISM INCLUDING A SECOND ACTUATOR MOUNTED INDEPENDENTLY OF SAID FIRST ACTUATOR FOR RELEASABLY LATCHING SAID BUCKET TO SAID CARRIER IN SAID PREDUMPING POSITION, WHEREBY THE FORCE EXERTED BY SAID FIRST ACTUATOR IN PIVOTING SAID BUCKET IS NOT TRANSMITTED TO SAID SECOND ACTUATOR, AND MEANS FOR SUPPLYING POWER OF AN OPERATING VALUE FROM A COMMON SOURCE TO BOTH OF SAID ACTUATORS SIMULTANEOUSLY, SAID FIRST ACTUATOR HAVING A SUBSTANTIAL GREATER OPERATING AREA THAN THE OPERATING AREA OF THE SECOND ACTUATOR AND DERIVING A SUBSTANTIALLY GREATER OPERATING FORCE THEREON FROM SAID OPERATING VALUE OF POWER THAN THAT DERIVED BY SAID SECOND ACTUATOR, SAID SECOND ACTUATOR OPERATING IN RESPONSE TO
References Cited (Backward Citations)
US2821313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |