US3219214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavator dipper door mounting
Assignee: Caterpillar Global Mining LLC
•
Filing: 1962-05-02
•
Granted: 1965-11-23
•
Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Baer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A DIPPER DOOR MOUNTING THE COMBINATION COMPRISING: A DIPPER DOOR; A HINGE BAR EXTENDING BENEATH THE DOOR; A PAIR OF MOUNTING LUGS ATTACHED TO AND DEPENDING FROM SAID DOOR WITH ONE ON EACH SIDE OF SAID HINGE BAR; A PIN EXTENDING THROUGH SAID LUGS AND SAID HINGE BAR WITH A TIGHTENING NUT THEREON; A RESILIENT MEMBER INTERPOSED BETWEEN SAID PIN AND ONE OF SAID MEMBERS THROUGH WHICH THE PIN EXTENDS, SUCH RESILIENT MEMBER BEING SUBSTANTIALLY ENCLOSED ON BOTH AXIAL AND TRANSVERSE SIDES WITH RESPECT TO SAID PIN FOR CONSTRICTED COMPRESSION THEREOF IN BOTH SAID AXIAL AND TRANSVERSE DIRECTIONS; AND WEDGE MEANS ASSOCIATED WITH SAID PIN THAT COMPRESSED SAID RESILIENT MEMBER BETWEEN SAID AXIAL AND TRANSVERSE ENCLOSED SIDES UPON BRINGING UP SAID TIGHTENING NUT.
Claim 2
Dependent Claim
124 words
IN A DIPPER DOOR MOUNTING THE COMBINATION COMPRISING: A DIPPER DOOR; A HINGE BAR EXTENDING BENEATH THE DOOR; A PAIR OF MOUNTING LUGS ATTACHED TO AND DEPENDING FROM SAID DOOR WITH ONE ON EACH SIDE OF SAID HINGE BAR; A PIN EXTENDING THROUGH SAID LUGS AND SAID HINGE BAR WITH A TIGHTENING NUT THEREON; A RESILIENT MEMBER INTERPOSED BETWEEN SAID PIN AND ONE OF SAID MEMBERS THROUGH WHICH THE PIN EXTENDS, SUCH RESILIENT MEMBER BEING SUBSTANTIALLY ENCLOSED ON BOTH AXIAL AND TRANSVERSE SIDES WITH RESPECT TO SAID PIN FOR CONSTRICTED COMPRESSION THEREOF IN BOTH SAID AXIAL AND TRANSVERSE DIRECTIONS; AND WEDGE MEANS ASSOCIATED WITH SAID PIN THAT COMPRESSED SAID RESILIENT MEMBER BETWEEN SAID AXIAL AND TRANSVERSE ENCLOSED SIDES UPON BRINGING UP SAID TIGHTENING NUT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |