Patent US3426928A successfully refreshed from Google Patents.
US3426928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector mechanism for loader buckets
Assignee: Caterpillar Inc
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Filing: 1966-11-03
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Granted: 1969-02-11
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Expires: 1986-11-03
Abstract
No abstract record available.
Inventors
- 👤 Trevor G Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/407
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
EJECTOR MECHANISM FOR A LOADER BUCKET HAVING A FLOOR AND A FACE WITH AN OPENING FOR RECEIVING AND DISCHARGING A LOAD COMPRISING A MOVABLE EJECTOR MEMBER DISPOSED TRANSVERSELY IN SAID BUCKET AND HAVING AN EDGE ADJACENT SAID FLOOR THEREOF, A LOWER LINK EXTENDING BETWEEN SAID BUCKET AND SAID EJECTOR MEMBER, A FIRST PIVOT CONNECTION COUPLING OVER LOWER LINK TO SAID BUCKET, A SECOND PIVOT CONNECTION COUPLING SAID LOWER LINK TO SAID EJECTOR AT A POINT THEREON SPACED FROM SAID EDGE THEREOF, MEANS FOR FORCING SAID EJECTOR MEMBER TOWARDS SAID FACE OF SAID BUCKET BY PIVOTING SAID EJECTOR MEMBER AND SAID LOWER LINK ABOUT SAID FIRST PIVOT CONNECTION, AN UPPER LINK EXTENDING BETWEEN SAID BUCKET AND SAID EJECTOR MEMBER, A THIRD PIVOT CONNECTION COUPLING SAID UPPER LINK TO SAID BUCKET, AND A FOURTH PIVOT CONNECTION COUPLING SAID UPPER LINK TO SAID EJECTOR MEMBER AR A POINT THEREON WHICH IS SPACED FROM SAID EDGE A GREATER DISTANCE THAN THE SPACING OF SAID SECOND PIVOT CONNECTION THEREFROM WHEREBY SAID EJECTOR MEMBER IS CONSTRAINED TO PIVOT RELATIVE TO SAID LOWER LINK ABOUT SAID SECOND PIVOT CONNECTION DURING SAID MOVEMENT TOWARDS SAID FACE THEREBY CAUSING SAID EDGE TO MOVE IN A LINEAR MANNER.
Claim 2
Dependent Claim
198 words
EJECTOR MECHANISM FOR A LOADER BUCKET HAVING A FLOOR AND A FACE WITH AN OPENING FOR RECEIVING AND DISCHARGING A LOAD COMPRISING A MOVABLE EJECTOR MEMBER DISPOSED TRANSVERSELY IN SAID BUCKET AND HAVING AN EDGE ADJACENT SAID FLOOR THEREOF, A LOWER LINK EXTENDING BETWEEN SAID BUCKET AND SAID EJECTOR MEMBER, A FIRST PIVOT CONNECTION COUPLING OVER LOWER LINK TO SAID BUCKET, A SECOND PIVOT CONNECTION COUPLING SAID LOWER LINK TO SAID EJECTOR AT A POINT THEREON SPACED FROM SAID EDGE THEREOF, MEANS FOR FORCING SAID EJECTOR MEMBER TOWARDS SAID FACE OF SAID BUCKET BY PIVOTING SAID EJECTOR MEMBER AND SAID LOWER LINK ABOUT SAID FIRST PIVOT CONNECTION, AN UPPER LINK EXTENDING BETWEEN SAID BUCKET AND SAID EJECTOR MEMBER, A THIRD PIVOT CONNECTION COUPLING SAID UPPER LINK TO SAID BUCKET, AND A FOURTH PIVOT CONNECTION COUPLING SAID UPPER LINK TO SAID EJECTOR MEMBER AR A POINT THEREON WHICH IS SPACED FROM SAID EDGE A GREATER DISTANCE THAN THE SPACING OF SAID SECOND PIVOT CONNECTION THEREFROM WHEREBY SAID EJECTOR MEMBER IS CONSTRAINED TO PIVOT RELATIVE TO SAID LOWER LINK ABOUT SAID SECOND PIVOT CONNECTION DURING SAID MOVEMENT TOWARDS SAID FACE THEREBY CAUSING SAID EDGE TO MOVE IN A LINEAR MANNER.
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |