US3757869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slit trenching machine with orbital motion plow
Assignee: Individual
•
Filing: 1972-01-14
•
Granted: 1973-09-11
•
Expires: 1992-01-14
Abstract
Abstract A cable plow including a ground engaging vehicle having a plow member extending into the ground where it is driven orbitally to form a slit trench. Cable laying means feed a flexible cable or the like into the slit trench as it is formed by movement of the vehicle over the ground surface.
Inventors
- 👤 A Gagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:09
CPC Classifications
A; A01; A01B; A01B13/00; E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102; E02F5/103; Y; Y10; Y10S; Y10S37/00; Y10S37/904
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
In a machine for cutting a slit trench for laying a cable therein, a frame having a plow member mounted thereon and positioned so that the lower end of the plow member will project downward into the ground for forming said trench: a. drive means for imparting orbital movement to said plow member comprising: i. a prime mover on said frame; ii. a drive arm connected at one end to said plow member; iii. a drive shaft having an eccentric mounted thereon positioned at the other end of said drivearm and driven from said drive means; iv. a second shaft having a second eccentric mounted thereon and mounted on said drivearm at said one end thereof; v. motion control means connecting said drive arm to said frame for limiting movement of said drivearm; b. endless strand means connected between said drive shaft and said second shaft for turning said eccentrics in synchronism for imparting orbital motion to said plow blade.
Claim 2
Dependent Claim
160 words
In a machine for cutting a slit trench for laying a cable therein, a frame having a plow member mounted thereon and positioned so that the lower end of the plow member will project downward into the ground for forming said trench: a. drive means for imparting orbital movement to said plow member comprising: i. a prime mover on said frame; ii. a drive arm connected at one end to said plow member; iii. a drive shaft having an eccentric mounted thereon positioned at the other end of said drivearm and driven from said drive means; iv. a second shaft having a second eccentric mounted thereon and mounted on said drivearm at said one end thereof; v. motion control means connecting said drive arm to said frame for limiting movement of said drivearm; b. endless strand means connected between said drive shaft and said second shaft for turning said eccentrics in synchronism for imparting orbital motion to said plow blade.
Claim 3
Dependent Claim
44 words
The invention of claim 1 where said motion control means includes a generally horizontal link which is pivotally mounted at each end thereof, one end of said link being pivotally mounted to said drivearm, and the other end thereof being pivoted to said frame.
References Cited (Backward Citations)
FR767411A
Cited
US2229912A
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US3183979A
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US3339641A
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US3326010A
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US3514960A
Cited
FR2000368A7
Cited
US3685591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |