US3144836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monorail system
Assignee: Individual
•
Filing: 1962-04-03
•
Granted: 1964-08-18
•
Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Cripe
- 👤 Norman M Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:15
CPC Classifications
E; E01; E01B; E01B25/00; E01B25/22; E01B25/26; E01B25/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A MONORAIL SYSTEM COMPRISING: A SINGLE CONTINUOUS MAIN RAIL OF SUBSTANTIALLY HOLLOW TUBULAR CROSS-SECTION THROUGHOUT SUBSTANTIALLY ITS ENTIRETY; A BASE FOR SAID MAIN RAIL, A WEB EXTENDING FROM SAID HOLLOW TUBULAR RAIL TO SAID BASE, SAID WEB AND SAID MAIN RAIL BEING MOUNTED TO ONE SIDE OF THE CENTER LINE OF SAID BASE; A SWITCH RAIL MOUNTED FOR MOVEMENT VERTICALLY AND HORIZONTALLY TOWARDS AND AWAY FROM SAID MAIN RAIL, SAID SWITCH HAVING ITS UPPER RIDING SURFACE CURVED WITH THE SAME RADIUS OF CRUVATURE AS SAID MAIN RAIL; BOGIE WHEELS ENGAGING SAID RAILS; A VEHICLE; A SUPPORT ARM DEPENDING FROM SAID BOGIE WHEELS AND SUPPORTING SAID VEHICLE IN SUSPENSION FROM SAID RAILS; A RETAINER WHEEL MOUNTED ON SAID SUPPORT AND ADAPTED TO ENGAGE UNDER A PORTION OF SAID RAILS ON THE SIDE OF SAID RAIL DISPOSED THE FURTHEST FROM THE CENTER LINE OF SAID BASE TO PREVENT SAID BOGIE WHEELS FROM LEAVING SAID RAILS.
Claim 2
Dependent Claim
153 words
A MONORAIL SYSTEM COMPRISING: A SINGLE CONTINUOUS MAIN RAIL OF SUBSTANTIALLY HOLLOW TUBULAR CROSS-SECTION THROUGHOUT SUBSTANTIALLY ITS ENTIRETY; A BASE FOR SAID MAIN RAIL, A WEB EXTENDING FROM SAID HOLLOW TUBULAR RAIL TO SAID BASE, SAID WEB AND SAID MAIN RAIL BEING MOUNTED TO ONE SIDE OF THE CENTER LINE OF SAID BASE; A SWITCH RAIL MOUNTED FOR MOVEMENT VERTICALLY AND HORIZONTALLY TOWARDS AND AWAY FROM SAID MAIN RAIL, SAID SWITCH HAVING ITS UPPER RIDING SURFACE CURVED WITH THE SAME RADIUS OF CRUVATURE AS SAID MAIN RAIL; BOGIE WHEELS ENGAGING SAID RAILS; A VEHICLE; A SUPPORT ARM DEPENDING FROM SAID BOGIE WHEELS AND SUPPORTING SAID VEHICLE IN SUSPENSION FROM SAID RAILS; A RETAINER WHEEL MOUNTED ON SAID SUPPORT AND ADAPTED TO ENGAGE UNDER A PORTION OF SAID RAILS ON THE SIDE OF SAID RAIL DISPOSED THE FURTHEST FROM THE CENTER LINE OF SAID BASE TO PREVENT SAID BOGIE WHEELS FROM LEAVING SAID RAILS.
References Cited (Backward Citations)
US1605521A
Cited
US1749381A
Cited
US1811270A
Cited
US1917837A
Cited
GB421225A
Cited
US2132187A
Cited
US2610584A
Cited
US2725017A
Cited
US2840006A
Cited
US2746397A
Cited
US2944491A
Cited
US2997003A
Cited
US3039614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |