US4189854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grader blade attachment
Assignee: Danek Industries Inc
•
Filing: 1978-07-17
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Granted: 1980-02-26
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Expires: 1998-07-17
Abstract
Abstract A grader attachment for a bucket, which includes a scoop panel having a cutting edge and a pair of oppositely disposed side panels which define an interior volume, includes a bifurcated frame member, including a first leg and a second leg cooperatively defining an elongated slot therebetween receiving the cutting edge and a substantial portion of the scoop panel of the bucket. The outboard end portion of the first leg is located within the interior volume defined by the bucket. Longitudinally adjustable jackscrews frictionally engage the side panels and laterally adjustable jackscrews frictionally engage the scoop panel. A grader blade is attached to the frame member.
Inventors
- 👤 John A. Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/28; E02F3/36; E02F3/40; E02F3/401; E02F3/96; E02F3/962; Y; Y10; Y10S; Y10S414/00; Y10S414/125
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
A grader attachment for a bucket, including a scoop panel having a cutting edge and a pair of oppositely disposed side panels and defining an interior volume, said attachment comprising a bifurcated frame member including a first leg and a second leg cooperatively defining an elongated slot therebetween receiving the cutting edge and a substantial portion of the scoop panel of the bucket to locate an outboard end portion of the first leg within the interior volume defined by the bucket, longitudinally adjustable means for frictionally engaging said side panels, laterally adjustable means frictionally engaging the scoop panel, and a grader blade attached to said frame member.
Claim 2
Dependent Claim
107 words
A grader attachment for a bucket, including a scoop panel having a cutting edge and a pair of oppositely disposed side panels and defining an interior volume, said attachment comprising a bifurcated frame member including a first leg and a second leg cooperatively defining an elongated slot therebetween receiving the cutting edge and a substantial portion of the scoop panel of the bucket to locate an outboard end portion of the first leg within the interior volume defined by the bucket, longitudinally adjustable means for frictionally engaging said side panels, laterally adjustable means frictionally engaging the scoop panel, and a grader blade attached to said frame member.
Claim 3
Dependent Claim
44 words
A grader attachment as defined in claim 1 wherein said longitudinal engaging means comprises a pair of coaxial, oppositely directed jackscrews, each of said longitudinal jackscrews being threadably attached to said first leg outboard end portion and extending toward one of said side walls.
Claim 4
Dependent Claim
32 words
A grader attachment as defined in claim 1 wherein said lateral engaging means comprises a pair of generally parallel jackscrews threadably connected to said first leg and extending toward said scoop panel.
Claim 5
Dependent Claim
46 words
A grader attachment as defined in claim 1 including means attaching the grader to the frame member comprising a mounting frame pivotally attached to the frame member and a blade frame pivotally attached to said mounting frame, the grader blade being attached to the blade frame.
References Cited (Backward Citations)
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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) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |