Patent US4023288A successfully refreshed from Google Patents.
US4023288A
Expired / Lapsed
US
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Backhoe compactor/scraper apparatus and method
Assignee: Individual
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Filing: 1975-04-11
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Granted: 1977-05-17
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Expires: 1995-04-11
Abstract
Abstract A compaction roller is provided for attachment to a backhoe or similar boom device mounted on a tractor for compacting loose fill dirt. The roller includes a closed cylinder mounted on a free wheeling axle having a plurality of radially extending teeth spaced about its circumference. A U-shaped attachment member is connected to both ends of the axle and is provided with two comb assemblies extending across the cylinder width having teeth spaced to clean the cylinder teeth as the cylinder rotates. The attachment member extends in a tapering U-shape to form a scraper blade integral with the attachment member for scraping fill dirt into a trench for compaction. Downward pressure is provided by the backhoe hydraulic piston assembly and the partial weight of the tractor at the backhoe is rotated over a section of fill dirt in the trench.
Inventors
- 👤 Harry James Roe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:03
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/963; E02F3/964; E02D; E02D3/00; E02D3/02; E02D3/026; E02D3/032; E02F3/28; E02F3/36; E02F3/40; E02F5/00; E02F5/02; E02F5/12; Y; Y10; Y10S; Y10S414/00; Y10S414/125
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench by applying a substantial amount of the tractor weight through said boom assembly to a cylindrical roller on said backhoe compactor while moving the roller over the fill material in the trench.
Claim 2
Independent Claim
83 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench by applying a substantial amount of the tractor weight through said boom assembly to a cylindrical roller on said backhoe compactor while moving the roller over the fill material in the trench.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein substantially the entire weight of said tractor is distributed between said cylindrical roller through the boom assembly and a work member on the front of the tractor.
Claim 4
Dependent Claim
33 words
The method of claim 2 wherein said substantial amount of tractor weight is transferred to said roller along a substantially straight line running along a boom of the boom assembly to said roller.
Claim 5
Independent Claim
102 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench by applying downward pressure, including a substantial amount of weight of said tractor, along a boom of said backhoe assembly to a cylindrical roller on said backhoe compactor in substantial alignment with said backhoe boom while moving said backhoe boom along the trench to run the roller over the fill material.
Claim 6
Independent Claim
102 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench by applying downward pressure, including a substantial amount of weight of said tractor, along a boom of said backhoe assembly to a cylindrical roller on said backhoe compactor in substantial alignment with said backhoe boom while moving said backhoe boom along the trench to run the roller over the fill material.
Claim 7
Independent Claim
114 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench using a cylindrical roller pivotally attached to a boom of said backhoe assembly by positioning said roller substantially along the longitudinal axis of said boom and applying a force directed substantially parallel to said boom along a line running substantially through the center of said cylindrical roller while moving said backhoe boom along the trench to run the roller over the fill material.
Claim 8
Independent Claim
114 words
A method of filling trench excavations using a backhoe compactor attached to a hydraulically-actuated boom assembly mounted on a tractor, comprising scraping a layer of fill material into a portion of said trench with a scraper blade on said backhoe compactor; and compacting said layer of fill material in said trench using a cylindrical roller pivotally attached to a boom of said backhoe assembly by positioning said roller substantially along the longitudinal axis of said boom and applying a force directed substantially parallel to said boom along a line running substantially through the center of said cylindrical roller while moving said backhoe boom along the trench to run the roller over the fill material.
Claim 9
Dependent Claim
30 words
The method of claim 5 wherein the step of applying substantial downward pressure includes applying a substantial amount of weight of said tractor on said roller through said boom assembly.
Claim 10
Dependent Claim
28 words
The method of claim 5 and further comprising the step of distributing the layer of fill dirt evenly over a portion of said trench using said scraper blade.
Claim 11
Dependent Claim
36 words
The method of claim 5 and further comprising the step of breaking up lumps of conglomerated fill material using roller teeth projecting radially from said roller while compacting said layer of fill material in said trench.
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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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |