Patent US3245608A successfully refreshed from Google Patents.
US3245608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation system
Assignee: J B KNIGHT CO Inc
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Filing: 1963-03-12
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Granted: 1966-04-12
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Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Rufus J Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:39
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A AGRICULTURAL IRRIGATION SYSTEM HAVING (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE AND ADAPTED TO CARRY SPRINKLERS THEREON, (B) A PLURALITY OF VEHICLES, (C) AT LEAST TWO WHEELS ON EACH VEHICLE, (D) SAID PIPE ATTACHHED TO EACH VEHICLE ABOVE THE CENTER OF THE WHEELS, AND (E) MEANS FOR MOVING THE VEHICLES; THE IMPROVEMENT COMPRISING IN COMBINATION: (F) A PLURALITY OF TUBES WHICH TRICAL BEHIND THE PIPE AND DRAG ON THE GROUND AS THE PIPE IS MOVED BY THE VEHICLES, EACH TUBE ADAPTED TO CARRY A SPRINKLER THEREON, (G) EACH TUBE CONNECTED TO THE PIPE BY A CONDUIT (H) WHICH EXTENDS DOWNWARDLY FROM THE PIPE AND (I) IS RIGIDLY ATTACHED TO THE PIPE, SO THAT THE DRAG OF THE TUBE HAS A REDUCED TENDENCY TO OVERTURN THE VEHICLE WHEREIN (J) THE CONDUIT IS ATTACHED TO THE PIPE AT THE BOTTOM OF THE PIPE, AND (K) EACH TUBE CARRIES A CONNECTOR AT THE END THEREOF, AND (L) MEANS IN EACH CONNECTOR RESPONSIVE TO PRESSURE IN THE PIPES, CONDUIT, TUBE, AND CONNECTOR FOR DRAINING THE CONNENTS OF THE CONNECTOR AND THUS DRAINING THE TUBE, CONDUIT AND PIPE.
Claim 2
Dependent Claim
188 words
IN A AGRICULTURAL IRRIGATION SYSTEM HAVING (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE AND ADAPTED TO CARRY SPRINKLERS THEREON, (B) A PLURALITY OF VEHICLES, (C) AT LEAST TWO WHEELS ON EACH VEHICLE, (D) SAID PIPE ATTACHHED TO EACH VEHICLE ABOVE THE CENTER OF THE WHEELS, AND (E) MEANS FOR MOVING THE VEHICLES; THE IMPROVEMENT COMPRISING IN COMBINATION: (F) A PLURALITY OF TUBES WHICH TRICAL BEHIND THE PIPE AND DRAG ON THE GROUND AS THE PIPE IS MOVED BY THE VEHICLES, EACH TUBE ADAPTED TO CARRY A SPRINKLER THEREON, (G) EACH TUBE CONNECTED TO THE PIPE BY A CONDUIT (H) WHICH EXTENDS DOWNWARDLY FROM THE PIPE AND (I) IS RIGIDLY ATTACHED TO THE PIPE, SO THAT THE DRAG OF THE TUBE HAS A REDUCED TENDENCY TO OVERTURN THE VEHICLE WHEREIN (J) THE CONDUIT IS ATTACHED TO THE PIPE AT THE BOTTOM OF THE PIPE, AND (K) EACH TUBE CARRIES A CONNECTOR AT THE END THEREOF, AND (L) MEANS IN EACH CONNECTOR RESPONSIVE TO PRESSURE IN THE PIPES, CONDUIT, TUBE, AND CONNECTOR FOR DRAINING THE CONNENTS OF THE CONNECTOR AND THUS DRAINING THE TUBE, CONDUIT AND PIPE.
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |