US3371619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for determining track alignment
Assignee: TAMPER Inc
•
Filing: 1967-01-24
•
Granted: 1968-03-05
•
Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Stewart John Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:06
CPC Classifications
E; E01; E01B; E01B35/00; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/17; E01B2203/00; E01B2203/14; E01B2203/148; E01B2203/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
APPARATUS FOR DETERMINING THE HORIZONTAL MISALIGNMENT OF A RAILWAY TRACK COMPRISING A SYSTEM ADAPTED TO RUN ON THE TRACK; MEANS FOR BIASING THE SYSTEM AGAINST A REFERENCE RAIL; HIGH FREQUENCY BEAM TRANSMITTER MEANS MOUNTED ON THE SYSTEM TO TRANSMIT LONGITUDINALLY OF THE TRACK; A PAIR OF BEAM RECEIVERS ON THE SYSTEM SPACED THE TRANSMITTER AND ALIGNED TO RECEIVE THE TRANSMISSION FROM SAID TRANSMITTER MEANS; AND BEAM INTERFERENCE MEANS ON THE SYSTEM AND ASSOCIATED WITH EACH PAIR OF SAID BEAM RECEIVERS AND ADAPTED TO BE RESPONSIVE TO DISCREPANCIES IN HORIZONTAL TRACK ALIGNMENT; SAID BEAM INTERFERENCE MEANS BEING LOCATED BETWEEN SAID TRANSMITTER MEANS AND SAID
Claim 2
Dependent Claim
103 words
APPARATUS FOR DETERMINING THE HORIZONTAL MISALIGNMENT OF A RAILWAY TRACK COMPRISING A SYSTEM ADAPTED TO RUN ON THE TRACK; MEANS FOR BIASING THE SYSTEM AGAINST A REFERENCE RAIL; HIGH FREQUENCY BEAM TRANSMITTER MEANS MOUNTED ON THE SYSTEM TO TRANSMIT LONGITUDINALLY OF THE TRACK; A PAIR OF BEAM RECEIVERS ON THE SYSTEM SPACED THE TRANSMITTER AND ALIGNED TO RECEIVE THE TRANSMISSION FROM SAID TRANSMITTER MEANS; AND BEAM INTERFERENCE MEANS ON THE SYSTEM AND ASSOCIATED WITH EACH PAIR OF SAID BEAM RECEIVERS AND ADAPTED TO BE RESPONSIVE TO DISCREPANCIES IN HORIZONTAL TRACK ALIGNMENT; SAID BEAM INTERFERENCE MEANS BEING LOCATED BETWEEN SAID TRANSMITTER MEANS AND SAID
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |