Patent US3237594A successfully refreshed from Google Patents.
US3237594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for internally coating pipes or tubes
Assignee: Individual
•
Filing: 1962-07-25
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Granted: 1966-03-01
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Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Jack W Weaver
- 👤 Jr Barney L Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:51
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12; B; B05; B05C; B05C7/00; B05C7/06; B05C7/08; F; F16; F16L; F16L58/00; F16L58/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
AN APPARATUS FOR APPLYING A LAYER OF COATING MATERIAL TO THE INTERIOR SURFACES OF A PIPE COMPRISING A HORIZONTALLY DISPOSED PIPE TO BE INTERNALLY COATED; A PAIR OF TUBULAR END MEMBERS IN A GENERALLY HORIZONTAL ALIGNMENT WITH AND RELEASABLY SEALED TO THE ENDS OF SAID PIPE; EACH OF SAID MEMBERS BEING MOUNTED FOR ROTATION ABOUT A VERTICAL AXIS THROUGH THE SUPPORT PEDESTAL THEREOF AND INCLUDING A U-SHAPED TRAP-LIKE SECTION ALONG THE LONGITUDINAL EXTENT THEREOF, COATING MATERIAL CHARGING MEANS FOR EACH OF SAID END MEMBERS, SUCTION MEANS SELECTIVELY COMMUNICATING WITH EACH OF SAID END MEMBERS, A FLOATING AND BULBOUS RESILIENT APPLICATOR MEANS IN ONE OF SAID END MEMBERS ACTUATED IN ONE DIRECTION OF TRAVEL DURING COATING OF THE INTERNAL SURFACE OF SAID PIPE DUE TO REACTION ON SAID APPLICATOR BY SAID SUCTION MEANS, SAID COATING MATERIAL CHARGING MEANS COMMUNICATING WITH EACH OF SAID END MEMBERS FOR CHARGING SAID END MEMBERS WITH COATING MATERIAL AHEAD OF SAID BULBOUS APPLICATOR, ENERGIZED ELECTRICAL CIRCUIT MEANS FOR ACTUATING SAID SUCTION MEANS, AND RESILIENTLY SEALED SWITCH MEANS IN EACH OF SAID TRAP-LIKE END MEMBERS CONNECTED TO SAID CIRCUIT MEANS AND OPERATED BY CONTACT WITH SAID APPLICATOR MEANS TO SELECTIVELY ACTUATE SAID SUCTION MEANS TO CONTROL THE DIRECTION OF TRAVEL OF SAID APPLICATOR MEANS IN SAID PIPE TO BE COATED.
Claim 2
Independent Claim
213 words
AN APPARATUS FOR APPLYING A LAYER OF COATING MATERIAL TO THE INTERIOR SURFACES OF A PIPE COMPRISING A HORIZONTALLY DISPOSED PIPE TO BE INTERNALLY COATED; A PAIR OF TUBULAR END MEMBERS IN A GENERALLY HORIZONTAL ALIGNMENT WITH AND RELEASABLY SEALED TO THE ENDS OF SAID PIPE; EACH OF SAID MEMBERS BEING MOUNTED FOR ROTATION ABOUT A VERTICAL AXIS THROUGH THE SUPPORT PEDESTAL THEREOF AND INCLUDING A U-SHAPED TRAP-LIKE SECTION ALONG THE LONGITUDINAL EXTENT THEREOF, COATING MATERIAL CHARGING MEANS FOR EACH OF SAID END MEMBERS, SUCTION MEANS SELECTIVELY COMMUNICATING WITH EACH OF SAID END MEMBERS, A FLOATING AND BULBOUS RESILIENT APPLICATOR MEANS IN ONE OF SAID END MEMBERS ACTUATED IN ONE DIRECTION OF TRAVEL DURING COATING OF THE INTERNAL SURFACE OF SAID PIPE DUE TO REACTION ON SAID APPLICATOR BY SAID SUCTION MEANS, SAID COATING MATERIAL CHARGING MEANS COMMUNICATING WITH EACH OF SAID END MEMBERS FOR CHARGING SAID END MEMBERS WITH COATING MATERIAL AHEAD OF SAID BULBOUS APPLICATOR, ENERGIZED ELECTRICAL CIRCUIT MEANS FOR ACTUATING SAID SUCTION MEANS, AND RESILIENTLY SEALED SWITCH MEANS IN EACH OF SAID TRAP-LIKE END MEMBERS CONNECTED TO SAID CIRCUIT MEANS AND OPERATED BY CONTACT WITH SAID APPLICATOR MEANS TO SELECTIVELY ACTUATE SAID SUCTION MEANS TO CONTROL THE DIRECTION OF TRAVEL OF SAID APPLICATOR MEANS IN SAID PIPE TO BE COATED.
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |