Patent US3967641A successfully refreshed from Google Patents.
US3967641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch assembly
Assignee: IRECO IND Inc
•
Filing: 1975-01-31
•
Granted: 1976-07-06
•
Expires: 1995-01-31
Abstract
Abstract A wheeled power carriage supports an engine driving a pipeline rotatably supported by the carriage. The pipeline is also supported by wheels keyed thereto. The carriage is selectively driven by sprockets mounted rotatably on the pipeline and selectively clutched to the pipeline for rotation therewith.
Inventors
- 👤 Joseph A. Bedard
- 👤 Roger G. Hills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:55
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
In an irrigation line move, a drive tube having a first pipe coupling flange at one end thereof and a collar on that end portion of the drive tube and keyed to the drive tube, a bull gear secured rigidly to and sealed to the other end of the drive tube, a journaling tube rotatably mounting the drive tube, a sprocket unit mounted rotatably on the drive tube between the flange and the collar and including a pair of sprockets and a spacer between the sprockets and keyed to the sprockets, the pipe coupling flange and the collar having aligned holes, the sprocket unit having holes adapted to be aligned with the holes in the flange and the collar, and keying means comprising a removable pin adapted to be inserted through the holes to selectively key the sprocket unit to the drive tube.
Claim 2
Dependent Claim
143 words
In an irrigation line move, a drive tube having a first pipe coupling flange at one end thereof and a collar on that end portion of the drive tube and keyed to the drive tube, a bull gear secured rigidly to and sealed to the other end of the drive tube, a journaling tube rotatably mounting the drive tube, a sprocket unit mounted rotatably on the drive tube between the flange and the collar and including a pair of sprockets and a spacer between the sprockets and keyed to the sprockets, the pipe coupling flange and the collar having aligned holes, the sprocket unit having holes adapted to be aligned with the holes in the flange and the collar, and keying means comprising a removable pin adapted to be inserted through the holes to selectively key the sprocket unit to the drive tube.
Claim 3
Dependent Claim
24 words
The irrigation line move of claim 1 including pair of flanged pipe sections bolted to the flange and the bull gear and sealed thereto.
Claim 4
Dependent Claim
124 words
In an irrigation line move, and a pair of flanged pipe sections, a drive tube having a flange at one end thereof and connected to one of the pipe sections, a bull gear secured rigidly to and sealed to the other end of the drive tube and connected to the other pipe section, a journaling tube rotatably mounting the drive tube, a sprocket unit mounted rotatably on the drive tube and including a pair of sprockets and a spacer joined rigidly together, and keying means for selectively keying the sprocket unit to the drive tube and including a pair of collars bracketing the sprocket unit and joined rigidly to the drive tube, and removable pin means extending through the collars and the sprocket unit.
Claim 5
Dependent Claim
124 words
In an irrigation line move, and a pair of flanged pipe sections, a drive tube having a flange at one end thereof and connected to one of the pipe sections, a bull gear secured rigidly to and sealed to the other end of the drive tube and connected to the other pipe section, a journaling tube rotatably mounting the drive tube, a sprocket unit mounted rotatably on the drive tube and including a pair of sprockets and a spacer joined rigidly together, and keying means for selectively keying the sprocket unit to the drive tube and including a pair of collars bracketing the sprocket unit and joined rigidly to the drive tube, and removable pin means extending through the collars and the sprocket unit.
References Cited (Backward Citations)
US3202172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |