Patent US5117020A successfully refreshed from Google Patents.
Patent US3204079A successfully refreshed from Google Patents.
US3204079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding machine for rails or the like
Assignee: Chemetron Corp
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Filing: 1962-05-02
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Granted: 1965-08-31
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Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Earle F Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:44
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/04; B23K11/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A DEVICE FOR WELDING RAILS WHEREIN THE WELDING OPERATION IS CHARACTERIZED BY URGING ADJACENT RAIL ENDS INTO END-TO-END PRESSURE ENGAGEMENT, COMPRISING IN COMBINATION: A BASE; FIRST AND SECOND COLUMNS RIGIDLY SUPPORTED UPON SAID BASE IN RELATIVE SPACED RELATION THEREON; A FIXED HEAD RIGIDLY MOUNTED ON SAID BASE AND AFFIXED TO SAID FIRST COLUMN, SAID FIXED HEAD BEING DISPOSED ON SAID BASE BETWEEN THE FIRST AND SECOND COLUMNS, SAID FIXED HEAD HAVING VERTICAL AND LATERAL CLAMPING MEANS ADAPTED TO ENGAGE AND TO POSITION SAID RAIL WITH RESPECT TO SAID HEAD; A MOVABLE HEAD SLIDABLY SUPPORTED ON SAID BASE AND ADAPTED TO BE MOVABLE ALONG SAID BASE TOWARD AND AWAY FROM FIXED HEAD, SAID MOVABLE HEAD BEING DISPOSED ON SAID BASE BETWEEN SAID SECOND COLUMN AND SAID FIXED HEAD, SAID MOVABLE HEAD HAVING VERTICAL AND LATERAL CLAMPING MEANS ADPTED TO ENGAGE AND TO POSITION SAID RAIL WITH RESPECT TO SAID HEAD; HYDRAULIC MEANS INTERCONNECTED BETWEEN SAID MOVABLE HEAD AND SAID SECOND COLUMN, SAID HYDRAULIC MEANS ADAPTED TO URGE SAID MOVABLE HEAD ALONG SAID BASE; AND MEANS RIGIDLY INTERCONNECTING THE UPPER AND LOWER TERMINALS OF SAID FIRST AND SECOND COLUMNS, RESPECTIVELY, TO DEFINE FORCE ABSORBING MEANS EFFECTIVE TO ABSORB FORCES DEVELOPED IN URGING SAID RAILS IN ENDTO-END PRESSURE WELDING RELATION.
Claim 2
Independent Claim
207 words
A DEVICE FOR WELDING RAILS WHEREIN THE WELDING OPERATION IS CHARACTERIZED BY URGING ADJACENT RAIL ENDS INTO END-TO-END PRESSURE ENGAGEMENT, COMPRISING IN COMBINATION: A BASE; FIRST AND SECOND COLUMNS RIGIDLY SUPPORTED UPON SAID BASE IN RELATIVE SPACED RELATION THEREON; A FIXED HEAD RIGIDLY MOUNTED ON SAID BASE AND AFFIXED TO SAID FIRST COLUMN, SAID FIXED HEAD BEING DISPOSED ON SAID BASE BETWEEN THE FIRST AND SECOND COLUMNS, SAID FIXED HEAD HAVING VERTICAL AND LATERAL CLAMPING MEANS ADAPTED TO ENGAGE AND TO POSITION SAID RAIL WITH RESPECT TO SAID HEAD; A MOVABLE HEAD SLIDABLY SUPPORTED ON SAID BASE AND ADAPTED TO BE MOVABLE ALONG SAID BASE TOWARD AND AWAY FROM FIXED HEAD, SAID MOVABLE HEAD BEING DISPOSED ON SAID BASE BETWEEN SAID SECOND COLUMN AND SAID FIXED HEAD, SAID MOVABLE HEAD HAVING VERTICAL AND LATERAL CLAMPING MEANS ADPTED TO ENGAGE AND TO POSITION SAID RAIL WITH RESPECT TO SAID HEAD; HYDRAULIC MEANS INTERCONNECTED BETWEEN SAID MOVABLE HEAD AND SAID SECOND COLUMN, SAID HYDRAULIC MEANS ADAPTED TO URGE SAID MOVABLE HEAD ALONG SAID BASE; AND MEANS RIGIDLY INTERCONNECTING THE UPPER AND LOWER TERMINALS OF SAID FIRST AND SECOND COLUMNS, RESPECTIVELY, TO DEFINE FORCE ABSORBING MEANS EFFECTIVE TO ABSORB FORCES DEVELOPED IN URGING SAID RAILS IN ENDTO-END PRESSURE WELDING RELATION.
References Cited (Backward Citations)
US2212393A
Cited
US2761952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |