US3222803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballast removing apparatus
Assignee: Kershaw Manufacturing Co Inc
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Filing: 1964-02-24
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Granted: 1965-12-14
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 John D Holley
- 👤 Ernest E Bode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/04; E01B27/06; E01B27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
APPARATUS FOR REMOVING BALLAST FROM BENEATH THE CROSSTIES OF A RAILROAD TRACK COMPRISING: (A) A VEHICLE FRAME SUPPORTED BY WHEELS FOR RIDING ON THE RAILS OF A RAILROAD TRACK, (B) AN ENDLESS CHAIN BALLAST REMOVING UNIT HAVING SPACED APART CROSS MEMBERS AND MOUNTED ON SAID FRAME FOR ROTATION IN A VERTICAL PLANE TRANSVERSELY OF THE VEHICLE FRAME, (C) SAID ENDLESS UNIT HAVING A LOWER RUN EXTENDING BENEATH THE CROSSTIES UNDER BOTH RAILS OF THE RAILROAD TRACK AND AN UPWARDLY AND INWARDLY INCLINED RUN EXTENDING OVER SAID CROSSTIES, (D) AN UPWARDLY INCLINED SLIDE MEMBER POSITIONED WITHIN THE CONFINES OF SAID ENDLESS UNIT AND EXTENDING INWARDLY OF AND ALONG THE UNDER SURFACE OF SAID INCLINED RUN FROM A POINT ADJACENT THE LOWER END OF SAID INCLINED RUN TO A POINT INTERMEDIATE THE ENDS OF SAID INCLINED RUN TO SUPPORT BALLAST AS IT IS PULLED UPWARDLY BY THE SPACED APART CROSS MEMBERS OF SAID INCLINED RUN AND DISCHARGE THE BALLAST INTERMEDIATE SAID ENDS OF THE INCLINED RUN, AND (E) A CONVEYOR UNIT MOUNTED TRANSVERSELY OF AND WITHIN THE CONFINES OF SAID ENDLESS BALLAST REMOVING UNIT IN POSITION TO RECEIVE THE BALLAST DISCHARGED FROM SAID SLIDE MEMBER.
Claim 2
Dependent Claim
193 words
APPARATUS FOR REMOVING BALLAST FROM BENEATH THE CROSSTIES OF A RAILROAD TRACK COMPRISING: (A) A VEHICLE FRAME SUPPORTED BY WHEELS FOR RIDING ON THE RAILS OF A RAILROAD TRACK, (B) AN ENDLESS CHAIN BALLAST REMOVING UNIT HAVING SPACED APART CROSS MEMBERS AND MOUNTED ON SAID FRAME FOR ROTATION IN A VERTICAL PLANE TRANSVERSELY OF THE VEHICLE FRAME, (C) SAID ENDLESS UNIT HAVING A LOWER RUN EXTENDING BENEATH THE CROSSTIES UNDER BOTH RAILS OF THE RAILROAD TRACK AND AN UPWARDLY AND INWARDLY INCLINED RUN EXTENDING OVER SAID CROSSTIES, (D) AN UPWARDLY INCLINED SLIDE MEMBER POSITIONED WITHIN THE CONFINES OF SAID ENDLESS UNIT AND EXTENDING INWARDLY OF AND ALONG THE UNDER SURFACE OF SAID INCLINED RUN FROM A POINT ADJACENT THE LOWER END OF SAID INCLINED RUN TO A POINT INTERMEDIATE THE ENDS OF SAID INCLINED RUN TO SUPPORT BALLAST AS IT IS PULLED UPWARDLY BY THE SPACED APART CROSS MEMBERS OF SAID INCLINED RUN AND DISCHARGE THE BALLAST INTERMEDIATE SAID ENDS OF THE INCLINED RUN, AND (E) A CONVEYOR UNIT MOUNTED TRANSVERSELY OF AND WITHIN THE CONFINES OF SAID ENDLESS BALLAST REMOVING UNIT IN POSITION TO RECEIVE THE BALLAST DISCHARGED FROM SAID SLIDE MEMBER.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |