Patent US3245355A successfully refreshed from Google Patents.
US3245355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail-mounted jib crane apparatus
Assignee: Albina Engine and Machine Works Inc
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Filing: 1964-05-11
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Granted: 1966-04-12
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Richard C Cousins
- 👤 Percy L Symons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:46
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/20; B66C23/24; B66C7/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/03; B66C2700/0321; B66C2700/0328; B66C2700/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A MOBILE JIB CRANE APPARATUS COMPRISING: A PAIR OF VERTICALY SPACED APART, PARALLEL TRACKS, EACH HAVING A STRAIGHT TRACK SECTION AND A GENERALLY HORIZONTAL CURVED TRACK SECTION, THE UPPER TRACK SECTION BEING I SHAPED IN CROSS SECTION SO AS TO HAVE UPPER AND LOWER LATERALLY EXTENDING FLANGES, THE LOWER TRACK SECTION BEING OF INVERTED T SHAPE IN CROSS SECTION SO AS TO HAVE A VERTICAL WEB, A MOBILE FRAME STRUCTURE FOR TRAVEL ALONG SAID TRACKS, UPPER WHEEL MEANS ON SAID FRAME STRUCTURE FOR ENGAGING SAID UPPER TRACK AND HAVING AT LEAST ONE SUPPORT WHEEL ENGAGING THE UPPER FACE OF SAID UPPER TRACK AND OTHER WHEEL ENGAGING THE FREE EDGES OF THE UPPER FLANGES OF SAID UPPER TRACK, AND HAVING AT LEAST ONE WHEEL ENGAGING THE UNDER SIDE OF ONE OF SAID UPPER FLANGES, LOWER WHEEL MEANS ON SAID FRAME STRUCTURE HAVING WHEELS FOR ENGAGING THE OPPOSITE SIDES OF THE WEB OF SAID LOWER TRACK, THE ABOVE MENTIONED WHEELS PREVENTING LATERAL DISPLACEMENT OF SAID UPPER AND LOWER WHEEL MEANS RELATIVE TO THE TRACKS THEY ENGAGE, EACH OF SAID WHEEL MEANS BEING MOUNTED FOR PIVOTAL MOVEMENT ABOUT A VERTICAL AXIS SUCH THAT THE VERTICAL AXES OF SAID WHEEL MEANS BEAR A FIXED RELATION TO ONE ANOTHER AS SAID WHEEL MEANS TRAVEL FROM A STRAIGHT TRACK SECTION ONTO A CURVED TRACK SECTION.
Claim 2
Dependent Claim
219 words
A MOBILE JIB CRANE APPARATUS COMPRISING: A PAIR OF VERTICALY SPACED APART, PARALLEL TRACKS, EACH HAVING A STRAIGHT TRACK SECTION AND A GENERALLY HORIZONTAL CURVED TRACK SECTION, THE UPPER TRACK SECTION BEING I SHAPED IN CROSS SECTION SO AS TO HAVE UPPER AND LOWER LATERALLY EXTENDING FLANGES, THE LOWER TRACK SECTION BEING OF INVERTED T SHAPE IN CROSS SECTION SO AS TO HAVE A VERTICAL WEB, A MOBILE FRAME STRUCTURE FOR TRAVEL ALONG SAID TRACKS, UPPER WHEEL MEANS ON SAID FRAME STRUCTURE FOR ENGAGING SAID UPPER TRACK AND HAVING AT LEAST ONE SUPPORT WHEEL ENGAGING THE UPPER FACE OF SAID UPPER TRACK AND OTHER WHEEL ENGAGING THE FREE EDGES OF THE UPPER FLANGES OF SAID UPPER TRACK, AND HAVING AT LEAST ONE WHEEL ENGAGING THE UNDER SIDE OF ONE OF SAID UPPER FLANGES, LOWER WHEEL MEANS ON SAID FRAME STRUCTURE HAVING WHEELS FOR ENGAGING THE OPPOSITE SIDES OF THE WEB OF SAID LOWER TRACK, THE ABOVE MENTIONED WHEELS PREVENTING LATERAL DISPLACEMENT OF SAID UPPER AND LOWER WHEEL MEANS RELATIVE TO THE TRACKS THEY ENGAGE, EACH OF SAID WHEEL MEANS BEING MOUNTED FOR PIVOTAL MOVEMENT ABOUT A VERTICAL AXIS SUCH THAT THE VERTICAL AXES OF SAID WHEEL MEANS BEAR A FIXED RELATION TO ONE ANOTHER AS SAID WHEEL MEANS TRAVEL FROM A STRAIGHT TRACK SECTION ONTO A CURVED TRACK SECTION.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |