US3779696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe handling method and apparatus
Assignee: Midwestern Specialties Ltd
•
Filing: 1972-04-25
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Granted: 1973-12-18
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Expires: 1992-04-25
Abstract
Abstract An apparatus for moving relatively large diameter sections of coated pipe through a treating stage such as a heating chamber in a manner wherein the coated portions of the pipe secions are not engaged, thus protecting the coating during the treating operation. The coated pipe is initially received by an elevator apparatus which moves the pipe to an intermediate station for transfer to a conveyor apparatus which moves the coated pipe through the treatment area, such as an oven or the like for discharge therefrom subsequent to the treating or heating operation. The pipe is supported in a manner precluding damage to the beveled pipe ends and precluding engagement with the coated portions thus greatly facilitating the coating of large diameter pipe.
Inventors
- 👤 E Poore
- 👤 J Goforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:39
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/063; B65G47/00; B65G47/52; B65G47/66; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
A method of handling coated pipe sections of substantially any length and diameter and having beveled ends, comprising the steps of initially receiving the coated pipe by supporting the pipe at the outer periphery of the ends thereof only at the juncture between the coated portion and the beveled portion, transfering the coated pipe to a conveying apparatus and engaging only the said outer periphery of the ends during the transfer operation, supporting the pipe only at the said outer periphery of the opposite ends thereof while moving the pipe along the conveying apparatus, treating the coated pipe section during movement thereof along the conveying apparatus, and removing the treated pipe section from the conveying apparatus.
Claim 2
Independent Claim
116 words
A method of handling coated pipe sections of substantially any length and diameter and having beveled ends, comprising the steps of initially receiving the coated pipe by supporting the pipe at the outer periphery of the ends thereof only at the juncture between the coated portion and the beveled portion, transfering the coated pipe to a conveying apparatus and engaging only the said outer periphery of the ends during the transfer operation, supporting the pipe only at the said outer periphery of the opposite ends thereof while moving the pipe along the conveying apparatus, treating the coated pipe section during movement thereof along the conveying apparatus, and removing the treated pipe section from the conveying apparatus.
Claim 3
Dependent Claim
60 words
A method of handling coated pipe sections as set forth in claim 1 and including the moving of the pipe sections along the conveying apparatus by engaging of the said outer periphery of the ends by roller members, and moving the roller members along the conveying apparatus for moving the pipe sections therealong and precluding engagement between adjacent pipe sectons.
Claim 4
Dependent Claim
44 words
A method of handling coated pipe sections as set forth in claim 2 wherein the opposite ends of the pipe section are engaged simultaneously by roller members, and moving the rollers in synchronization for facilitating movement of the pipe section along the conveying apparatus.
References Cited (Backward Citations)
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US2161742A
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US2529689A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |