Patent US4043061A successfully refreshed from Google Patents.
US4043061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground-shaping systems for a backhoe bucket
Assignee: Individual
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Filing: 1976-04-21
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Granted: 1977-08-23
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Expires: 1996-04-21
Abstract
Abstract A ground-shaping system attachable to and usable with a back-hoe bucket to shape the upper portions of a ditch to be formed, and to provide flexibility in affording many alternatives. It comprises two, three or more ground-cutting members and clamp means for securing said members relative to the side wall of a back-hoe bucket, there being a back plate for cooperating with the bucket side wall to remove the ground cut by the cutting members.
Inventors
- 👤 Leroy Marvin Heitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:51
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F5/00; E02F5/02; E02F5/025; Y; Y10; Y10S; Y10S37/00; Y10S37/903; Y10T; Y10T403/00; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
A detachable ground-shaping system for use with a back-hoe bucket, comprising in combination, a main body formed with at least two ground-cutting members and a back plate engaging each of said ground-cutting members along the length thereof, and a pair of clamps fixed to said main body to be firmly secured to said bucket to retain said back plate there against throughout its length.
Claim 2
Dependent Claim
64 words
A detachable ground-shaping system for use with a back-hoe bucket, comprising in combination, a main body formed with at least two ground-cutting members and a back plate engaging each of said ground-cutting members along the length thereof, and a pair of clamps fixed to said main body to be firmly secured to said bucket to retain said back plate there against throughout its length.
Claim 3
Dependent Claim
58 words
A detachable groundshaping system for use with a back-hoe bucket according to claim 1, wherein said back plate is firmly secured to said cutting members and throughout its length is formed complementally of a portion of a back-hoe bucket whereby said back plate is caused to be retained against said bucket throughout the length of said back plate.
Claim 4
Dependent Claim
101 words
A detachable ground-shaping system for use with a back-hoe bucket according to claim 2, wherein said system is adapted to be attached to a slanting side wall of a back-hoe bucket, said cutting members being disposed at right angles to each other and said back plate being formed with an angularly disposed edge which is formed complementally of a portion of said slanting side wall and causes said cutting members to be substantially horizontal and vertical when said clamps engage said side wall, said cutting members and said slanting side wall forming a closed triangle in engagement with said back plate.
Claim 5
Dependent Claim
119 words
A detachable ground-shaping system for use with a back-hoe bucket having at least one slanting side wall comprising in combination, a main body formed with at least three ground-cutting members and a back plate engaging each of said ground-cutting members along the length thereof, said back plate being formed to have an edge engagable with said slanting side wall of said bucket, and a pair of clamps fixed to said main body to be firmly secured to said bucket to retain said back plate against said slanting side wall throughout the length of said back plate and to dispose one of said ground-cutting members in a horizontal position while another of said ground-cutting members is in a vertical position.
Claim 6
Dependent Claim
119 words
A detachable ground-shaping system for use with a back-hoe bucket having at least one slanting side wall comprising in combination, a main body formed with at least three ground-cutting members and a back plate engaging each of said ground-cutting members along the length thereof, said back plate being formed to have an edge engagable with said slanting side wall of said bucket, and a pair of clamps fixed to said main body to be firmly secured to said bucket to retain said back plate against said slanting side wall throughout the length of said back plate and to dispose one of said ground-cutting members in a horizontal position while another of said ground-cutting members is in a vertical position.
Claim 7
Dependent Claim
38 words
A detachable ground-shaping system for use with a back-hoe bucket according to claim 4, wherein said third cutting member is connected to said vertical member along a line spaced from the connection between said horizontal and vertical members.
Claim 8
Dependent Claim
77 words
A detachable ground-shaping system for use with a back-hoe bucket according to claim 5, wherein said system is adapted to be attached to the side wall of a back-hoe bucket having two slanting wall sections disposed at an angle to each other, said third cutting member being disposed parallel to but spaced from one of said wall sections and the horizontal one of said first two members being adapted to engage the other of said wall sections.
Claim 9
Dependent Claim
42 words
A detachable ground-shaping system for use with a back-hoe bucket according to claim 6, wherein said back plate is formed with two edges disposed at an angle to each other for mating engagement respectively with said wall sections of said back-hoe bucket.
References Cited (Backward Citations)
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Cited
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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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |