US3230969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation system
Assignee: J B KNIGHT CO Inc
•
Filing: 1963-12-12
•
Granted: 1966-01-25
•
Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Rufus J Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN AN IRRIGATION PIPE MOVING SYSTEM HAVING (A) AN ELONGATED PIPE AND (B) A PLURALITY OF VEHICLES ATTACHED TO THE PIPE FOR MOVING THE PIPE TRANSVERSE THEREOF, (BB) THE LENGTH OF THE PIPE BETWEEN VEHICLES BEING SUCH THAT THE PIPE WILL NOT SUPPORT ITSELF SATISFACTORILY WHEN FULL OF WATER; THE IMPROVEMENT COMPRISING: (C) A LEG (D) DEPENDING FROM THE PIPE (E) ABOUT EQUALLY SPACED BETWEEN VEHICLES, (F) SAID LEG PIVOTED TO THE PIPE (G) TO SWING FREELY IN A PLANE TRANSVERSE TO THE PIPE, AND (H) A FOOT OF LARGE AREA ON THE BOTTOM OF THE LEG, (I) SAID FOOT EXTENDING IN A PLANE TRANSVERSE TO THE PIPE; SO THAT AS THE PIPE IS MOVED NORMAL TO ITS AXIS, THE LEG TRAILS BEHIND THE PIPE, AND WHEN THE PIPE REACHES ITS DESTINATION AND IS MOVED BACK SLIGHTLY, THE LEG SUPPORTS THE PIPE.
Claim 2
Dependent Claim
142 words
IN AN IRRIGATION PIPE MOVING SYSTEM HAVING (A) AN ELONGATED PIPE AND (B) A PLURALITY OF VEHICLES ATTACHED TO THE PIPE FOR MOVING THE PIPE TRANSVERSE THEREOF, (BB) THE LENGTH OF THE PIPE BETWEEN VEHICLES BEING SUCH THAT THE PIPE WILL NOT SUPPORT ITSELF SATISFACTORILY WHEN FULL OF WATER; THE IMPROVEMENT COMPRISING: (C) A LEG (D) DEPENDING FROM THE PIPE (E) ABOUT EQUALLY SPACED BETWEEN VEHICLES, (F) SAID LEG PIVOTED TO THE PIPE (G) TO SWING FREELY IN A PLANE TRANSVERSE TO THE PIPE, AND (H) A FOOT OF LARGE AREA ON THE BOTTOM OF THE LEG, (I) SAID FOOT EXTENDING IN A PLANE TRANSVERSE TO THE PIPE; SO THAT AS THE PIPE IS MOVED NORMAL TO ITS AXIS, THE LEG TRAILS BEHIND THE PIPE, AND WHEN THE PIPE REACHES ITS DESTINATION AND IS MOVED BACK SLIGHTLY, THE LEG SUPPORTS THE PIPE.
References Cited (Backward Citations)
US608011A
Cited
US850830A
Cited
US1048722A
Cited
US1966783A
Cited
US2474483A
Cited
US2497372A
Cited
US2534723A
Cited
US2638967A
Cited
US2726895A
Cited
US2796292A
Cited
US2892466A
Cited
US2896858A
Cited
US2915081A
Cited
US2931579A
Cited
US3145013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |