US3792539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for backhoe bucket
Assignee: Individual
•
Filing: 1972-05-15
•
Granted: 1974-02-19
•
Expires: 1992-05-15
Abstract
Abstract A pair of triangular wings are detachably mounted on the opposite side panels of a backhoe bucket to enable the same bucket to be used efficiently to dig excavations with sloped sidewalls or with conventional vertical walls.
Inventors
- 👤 H Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:54
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/025; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A digging bucket having an open top, a bottom wall with a front digging edge, a back wall and upright side panels, said bucket being adapted for use with a backhoe and including two wings positionable on the side panels adjacent the open top of the bucket so as to flare upwardly and outwardly away from said open top, said wings having outer digging edges inclined inwardly and forwardly and converging toward each other upon progressing from the back wall toward the front digging edge, said outer edges being engageable with the earth to form an excavation with sidewalls which slope upwardly and outwardly, and means for detachably mounting said wings on the bucket to enable the latter to be used to dig excavations with sloped sidewalls when said wings are attached and excavations with vertical sidewalls when said wings are removed.
Claim 2
Dependent Claim
142 words
A digging bucket having an open top, a bottom wall with a front digging edge, a back wall and upright side panels, said bucket being adapted for use with a backhoe and including two wings positionable on the side panels adjacent the open top of the bucket so as to flare upwardly and outwardly away from said open top, said wings having outer digging edges inclined inwardly and forwardly and converging toward each other upon progressing from the back wall toward the front digging edge, said outer edges being engageable with the earth to form an excavation with sidewalls which slope upwardly and outwardly, and means for detachably mounting said wings on the bucket to enable the latter to be used to dig excavations with sloped sidewalls when said wings are attached and excavations with vertical sidewalls when said wings are removed.
Claim 3
Dependent Claim
54 words
A digging bucket as defined by claim 1 wherein said means includes flanges connected to the inner edges of said wings for abutting engagement with the outer surfaces of said side panels, and bolts projecting through holes in said flanges and aligned holes in said side panels to anchor said wings to the bucket.
Claim 4
Dependent Claim
52 words
A digging bucket as defined by claim 2 further including L-shaped connectors connected to the inner edges of said wings and engageable with the inner surfaces of said side panels to transmit force between said wings and said side panels and to help said bolts hold said wings on the side panels.
Claim 5
Dependent Claim
43 words
A digging bucket as defined by claim 3 further including support braces connected to and depending from said wings for abutting engagement with the outer surfaces of said side panels to prevent the wings from being bent toward said bottom wall when excavating.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |