US4315375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth moving bucket
Assignee: Individual
•
Filing: 1980-07-21
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Granted: 1982-02-16
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Expires: 2000-07-21
Abstract
Abstract An improved earth moving bucket which includes a plurality of hemispherical, wear-resistant members bonded directly to the undersurface of the bottom wall of the bucket. The outer, earth-contacting, sidewalls of the bucket may also be provided with hemispherical members. The hemispherical members have a hardness at least as great but no more than 95 units of hardness on the Brinell scale greater than the walls to which they are attached. The hemispherical members are preferably placed on the walls in a staggered row arrangement wherein adjacent hemispherical members are at no greater distance from one another than the diameter of the largest of adjacent members.
Inventors
- 👤 Raymond R. Shinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:11
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/28; E02F9/2883; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/401
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
An earth moving bucket having a bottom wall, opposing sidewalls and a back wall wherein at least one wall includes a plurality of substantially hemispherical wear resistant members bonded to the outer earth-contacting surface of the wall in staggered relationship one to the other and wherein the wall to which the hemispherical members are bonded is of substantially 315-330 units hardness on the Brinell scale and wherein said hemispherical members are from substantially 370 to 410 units of Brinell hardness on the same scale.
Claim 2
Dependent Claim
84 words
An earth moving bucket having a bottom wall, opposing sidewalls and a back wall wherein at least one wall includes a plurality of substantially hemispherical wear resistant members bonded to the outer earth-contacting surface of the wall in staggered relationship one to the other and wherein the wall to which the hemispherical members are bonded is of substantially 315-330 units hardness on the Brinell scale and wherein said hemispherical members are from substantially 370 to 410 units of Brinell hardness on the same scale.
Claim 3
Dependent Claim
45 words
The apparatus as described in claim 1 wherein said hemispherical members are bonded to the wall in staggered rows and wherein each hemispherical member is spaced from an adjacent hemispherical member at no greater distance than the diameter of the largest of adjacent hemispherical members.
Claim 4
Dependent Claim
25 words
The apparatus as described in claim 1 wherein each of the sidewalls and the bottom wall each include a plurality of said hemispherical wear-resistant members.
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) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |