US3684030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for laying cable and the like
Assignee: LEE WAY TRENCHING Inc
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Filing: 1970-06-01
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Granted: 1972-08-15
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Expires: 1990-06-01
Abstract
Abstract Apparatus for laying cable and the like includes a trenching plow and a cable dispenser carried by a vertically adjustable support frame attachable to a self-propelled vehicle. The trenching plow includes a relatively flat blade body surmounted with an upper, forwardly projecting pivot arm for pivotal movement between operative and retracted positions. The blade has one or more vertically spaced forwardly and downwardly projecting teeth with each successively lower blade tooth being rearwardly and downwardly stepped relative to the one above. Each blade tooth has a front cutting edge and relatively narrow elongated lateral blade sections projecting outwardly from opposite sides of the blade body, the lateral blade sections being arranged with top and bottom faces on a front segment which progressively increases in slope along a curve extending rearwardly of a forward cutting edge and a rear segment extends rearwardly on a straight incline to provide a clearance angle under the blade sections to reduce drag and pull the vehicle down against the soil to increase traction while progressively lifting the soil vertically. One or more cables are laid in a trench formed by the trenching plow by the cable dispenser having a hinged side wall for lateral insertion of the cable.
Inventors
- 👤 Frank Lucero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:05
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
In a trenching plow adapted for attachment to a vehicle to form a trench in the earth, the combination comprising an earthpenetrating, generally flat-sided blade body with opposed flat side faces hAving a dependent shank portion and having at least one forwardly and downwardly extending tooth portion integral with said shank portion and terminating in a forward cutting edge, and lateral blade sections with top and bottom faces extending laterally outwardly from the side faces of said blade body and extending along the side faces of said tooth portion on a rearward and upward incline beginning at said forward cutting edge to elevate the soil as the blade tooth and lateral blade sections penetrate the earth and pull the vehicle down to increase traction.
Claim 2
Dependent Claim
124 words
In a trenching plow adapted for attachment to a vehicle to form a trench in the earth, the combination comprising an earthpenetrating, generally flat-sided blade body with opposed flat side faces hAving a dependent shank portion and having at least one forwardly and downwardly extending tooth portion integral with said shank portion and terminating in a forward cutting edge, and lateral blade sections with top and bottom faces extending laterally outwardly from the side faces of said blade body and extending along the side faces of said tooth portion on a rearward and upward incline beginning at said forward cutting edge to elevate the soil as the blade tooth and lateral blade sections penetrate the earth and pull the vehicle down to increase traction.
Claim 3
Dependent Claim
66 words
In a trenching plow as set forth in claim 1 including a forwardly extending attachment bar surmounted on the blade body at the upper end of the shank portion having pivot portions at forward and rear ends of the bar and means associated with said pivot portions for swinging the blade between a generally vertical earth-penetrating position to a generally horizontal retracted position above the earth.
Claim 4
Dependent Claim
35 words
In a trenching plow as set forth in claim 1 wherein said lateral blade sections extend to the back of said blade body, said toe portion extending below the bottom face of said blade sections.
Claim 5
Dependent Claim
34 words
In a trenching plow as set forth in claim 1 wherein said top and bottom faces of said lateral blade sections are generally parallel to one another along the sides of the blade body.
Claim 6
Dependent Claim
32 words
In a trenching plow as set forth in claim 1 wherein said blade body has a forwardly converging toe-like support portion for supporting said lateral blade sections on each side face thereof.
Claim 7
Dependent Claim
33 words
In a trenching plow as set forth in claim 5 wherein said toe-like support portion is disposed above a horizontal line through the cutting edge on an angle of at least 6* .
Claim 8
Dependent Claim
36 words
In a trenching plow as set forth in claim 1 including a plurality of vertically spaced blade teeth with each lower of said plurality of blade teeth being rearwardly stepped relative to a blade tooth above.
Claim 9
Dependent Claim
49 words
In a trenching plow as set forth in claim 1 wherein each of said blade sections include a forward segment arranged along a curved line which progressively increases in slope rearwardly from the forward cutting edge and a rear segment arranged along a straight line rearward and upward incline.
Claim 10
Dependent Claim
30 words
In a trenching plow as set forth in claim 8 wherein said forward curved segment increases in slope rearwardly and upwardly on an incline from about 12* to 20* .
Claim 11
Dependent Claim
129 words
A trenching plow adapted for attachment to a vehicle to form a trench in the earth comprising an earth-penetrating blade body with relatively flat side faces and having a depending shank portion and a plurality of vertically spaced blade tooth portions integral with said shank portion projecting forwardly and downwardly from the shank portion with each succeeding lower blade tooth portion being rearwardly stepped from the next above blade tooth portion, each said tooth portion terminating in a forward cutting edge and having rearwardly and upwardly inclined lateral blade sections projecting outwardly from opposite sides of each tooth portion and said side faces of said blade body to penetrate and lift the soil and pull the vehicle down to increase traction as the blade body is moved forwardly therethrough.
Claim 12
Dependent Claim
129 words
A trenching plow adapted for attachment to a vehicle to form a trench in the earth comprising an earth-penetrating blade body with relatively flat side faces and having a depending shank portion and a plurality of vertically spaced blade tooth portions integral with said shank portion projecting forwardly and downwardly from the shank portion with each succeeding lower blade tooth portion being rearwardly stepped from the next above blade tooth portion, each said tooth portion terminating in a forward cutting edge and having rearwardly and upwardly inclined lateral blade sections projecting outwardly from opposite sides of each tooth portion and said side faces of said blade body to penetrate and lift the soil and pull the vehicle down to increase traction as the blade body is moved forwardly therethrough.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |