US3328903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector mechanism for earthmoving scraper
Assignee: Caterpillar Inc
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Filing: 1964-04-02
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Granted: 1967-07-04
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Trevor G Campbell
- 👤 Marvin G Getz
- 👤 John S Logsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:42
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/656; E02F3/6409; E02F3/6427; E02F3/6454; E02F3/6472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN AN EARTHMOVING SCRAPER HAVING A BOWL WITH AN OPENING FORMED IN THE BOTTOM THEREOF, SIDE WALLS AND A BACK WALL, MEANS TO EJECT CONTENTS OF THE BOWL COMPRISING A PLATE CLOSING SAID OPENING, MEANS SUPPORTING SAID PLATE INCLUDING PIVOTAL CONNECTIONS WITH THE SIDES OF THE BOWL, POWER MEANS TO SWING SAID PLATE ABOUT SAID PIVOTAL CONNECTIONS TO EFFECT EJECTION OF BOWL CONTENTS THROUGH SAID OPENING, A STRIKER PLATE CARRIED FORWARDLY OF THE EJECTOR PLATE AT A LOCATION REMOTE FROM THE PIVOTAL CONNECTION, AND MEANS TO CAUSE THE STRIKER PLATE TO FOLLOW A RECTLINEAR PATH AS THE EJECTOR PLATE MOVES THROUGH AN ARC.
Claim 2
Dependent Claim
103 words
IN AN EARTHMOVING SCRAPER HAVING A BOWL WITH AN OPENING FORMED IN THE BOTTOM THEREOF, SIDE WALLS AND A BACK WALL, MEANS TO EJECT CONTENTS OF THE BOWL COMPRISING A PLATE CLOSING SAID OPENING, MEANS SUPPORTING SAID PLATE INCLUDING PIVOTAL CONNECTIONS WITH THE SIDES OF THE BOWL, POWER MEANS TO SWING SAID PLATE ABOUT SAID PIVOTAL CONNECTIONS TO EFFECT EJECTION OF BOWL CONTENTS THROUGH SAID OPENING, A STRIKER PLATE CARRIED FORWARDLY OF THE EJECTOR PLATE AT A LOCATION REMOTE FROM THE PIVOTAL CONNECTION, AND MEANS TO CAUSE THE STRIKER PLATE TO FOLLOW A RECTLINEAR PATH AS THE EJECTOR PLATE MOVES THROUGH AN ARC.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |