US3260220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad car mover
Assignee: McDowell-Wellman Engineering Co
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Filing: 1964-05-05
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Granted: 1966-07-12
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Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Ludwig Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:36
CPC Classifications
B; B61; B61J; B61J3/00; B61J3/04; B61J3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A RAILROAD CAR PUSHING BARNEY FOR SELECTIVELY ENGAGING AND MOVING A RAILROAD CAR ALONG A TRACKWAY, COMPRISING IN COMBINATION: (A) A FIRST PAIR OF SPACED CARRIAGE SUPPORTING RAILS DISPOSED BELOW AND PARALLEL TO THE TRACKWAY; (B) A PUSHING ARM SUPPORTING CARRIAGE MOVABLE ALONG SAID CARRIAGE SUPPORTING RAILS; (C) A PUSHING ARM PIVOTALLY SECURED TO SAID CARRIAGE ON AN AXIS TRANSVERSE TO THE TRACKWAY; (D) CAM FOLLOWING MEANS EXTENDING FROM SAID ARM; (E) MEANS CARRIED BY SAID ARM FOR THRUSTINGLY ENGAGING A RAILROAD CAR FOR MOVEMENT THEREOF AND ALONG THE TRACKWAY IN RESPONSE TO MOVEMENT OF THE CARRIAGE ALONG THE CARRIAGE SUPPORTING RAILS; (F) CAM MEANS ADAPTED TO COACT WITH SAID CAM FOLLOWER MEANS FOR SELECTIVELY MAINTAINING SAID ARM IN ENGAGEMENT WITH SAID RAILROAD CAR; (G) A RECESS DISPOSED ADJACENT SAID CAM MEANS FOR RECEIVING SAID CAM FOLLOWER MEANS WHILE SAID CAR ENGAGING MEANS ARE OUT OF ENGAGEMENT WITH SAID RAILROAD CAR; AND (H) MEANS FOR SELECTIVELY SHIFTING SAID CAM FOLLOWER BETWEEN SAID CAM MEANS AND SAID RECESS BY PIVOTING SAID ARM ABOUT SAID TRANSVERSE AXIS.
Claim 2
Dependent Claim
175 words
A RAILROAD CAR PUSHING BARNEY FOR SELECTIVELY ENGAGING AND MOVING A RAILROAD CAR ALONG A TRACKWAY, COMPRISING IN COMBINATION: (A) A FIRST PAIR OF SPACED CARRIAGE SUPPORTING RAILS DISPOSED BELOW AND PARALLEL TO THE TRACKWAY; (B) A PUSHING ARM SUPPORTING CARRIAGE MOVABLE ALONG SAID CARRIAGE SUPPORTING RAILS; (C) A PUSHING ARM PIVOTALLY SECURED TO SAID CARRIAGE ON AN AXIS TRANSVERSE TO THE TRACKWAY; (D) CAM FOLLOWING MEANS EXTENDING FROM SAID ARM; (E) MEANS CARRIED BY SAID ARM FOR THRUSTINGLY ENGAGING A RAILROAD CAR FOR MOVEMENT THEREOF AND ALONG THE TRACKWAY IN RESPONSE TO MOVEMENT OF THE CARRIAGE ALONG THE CARRIAGE SUPPORTING RAILS; (F) CAM MEANS ADAPTED TO COACT WITH SAID CAM FOLLOWER MEANS FOR SELECTIVELY MAINTAINING SAID ARM IN ENGAGEMENT WITH SAID RAILROAD CAR; (G) A RECESS DISPOSED ADJACENT SAID CAM MEANS FOR RECEIVING SAID CAM FOLLOWER MEANS WHILE SAID CAR ENGAGING MEANS ARE OUT OF ENGAGEMENT WITH SAID RAILROAD CAR; AND (H) MEANS FOR SELECTIVELY SHIFTING SAID CAM FOLLOWER BETWEEN SAID CAM MEANS AND SAID RECESS BY PIVOTING SAID ARM ABOUT SAID TRANSVERSE AXIS.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |