US3749262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power shovel with scraper blade releasably attached to the shovel bucket
Assignee: Terramot-Beteiligungs GmbH
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Filing: 1972-07-14
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Granted: 1973-07-31
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Expires: 1992-07-14
Abstract
Abstract An arm releasably pivoted to the underside of the bucket in a power shovel projects beyond the shovel in the normal direction of movement of the vehicular base of the shovel, and its free end carries a tiltable scraper blade. The arm may be secured on the bucket, and the blade may be secured on the arm in several fixed angular positions so that the blade may be employed for scraping and shaping embankments of a road on which the power shovel moves, such embankments not being accessible to the bucket unless the power shovel moves at right angles to the direction of the road.
Inventors
- 👤 H Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/962; E02F3/76; E02F3/80; E02F3/961
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
In a power shovel having an elongated body, drive means for moving said body in the direction of elongation, a bucket member mounted on said body, and swinging means for swinging said bucket member in a vertical longitudinal plane toward and away from a position in which said bucket member projects from said body in said direction when said body stands on a horizontal supporting surface, the improvement which comprises: a. an elongated arm; b. pivot means releasably mounting said arm on said bucket member for pivoting movement about a pivot axis extending in said plane while a free, longitudinal end portion of said arm projects beyond said bucket member in said direction away from said body; c. a scraper blade mounted on said free end portion for tilting movement about a tilting axis; d. first securing means for securing said arm to said bucket member in each of a plurality of angular positions relative to said pivot axis; and e. second securing means for securing said scraper blade to said free end portion in each of a plurality of angular positions relative to said tilting axis.
Claim 2
Dependent Claim
187 words
In a power shovel having an elongated body, drive means for moving said body in the direction of elongation, a bucket member mounted on said body, and swinging means for swinging said bucket member in a vertical longitudinal plane toward and away from a position in which said bucket member projects from said body in said direction when said body stands on a horizontal supporting surface, the improvement which comprises: a. an elongated arm; b. pivot means releasably mounting said arm on said bucket member for pivoting movement about a pivot axis extending in said plane while a free, longitudinal end portion of said arm projects beyond said bucket member in said direction away from said body; c. a scraper blade mounted on said free end portion for tilting movement about a tilting axis; d. first securing means for securing said arm to said bucket member in each of a plurality of angular positions relative to said pivot axis; and e. second securing means for securing said scraper blade to said free end portion in each of a plurality of angular positions relative to said tilting axis.
Claim 3
Dependent Claim
34 words
In a power shovel as set forth in claim 1, said bucket member, when in said position thereof, having a downwardly directed outer wall, said pivot means securing said arm to said outer wall.
Claim 4
Dependent Claim
40 words
In a power shovel as set forth in claim 2, the portion of said arm projecting beyond said bucket member having a length at least equal to the dimension of said bucket in the direction of elongation of said arm.
Claim 5
Dependent Claim
64 words
In a power shovel as set forth in claim 2, retaining means on said bucket member bounding a receptacle adjacent said outer wall, said pivot means including a bearing member superposed on said retaining means and secured in said receptacle against movement transverse to said direction, and a pivot pin pivotally connecting the other longitudinal end portion of said arm to said bearing member.
Claim 6
Dependent Claim
42 words
In a power shovel as set forth in claim 4, a bracket depending from said bearing member, said bracket, said bearing member, and said other longitudinal portion being formed with respective, aligned bores, said pivot pin being received in said aligned bores.
Claim 7
Dependent Claim
43 words
In a power shovel as set forth in claim 1, wherein said bucket member has a free edge portion transverse to said direction and directed away from said body, said first securing means including means for clamping said arm to said edge portion.
Claim 8
Dependent Claim
38 words
In a power shovel as set forth in claim 6, said clamping means including a clamping plate and a threaded clamping member connecting said plate to said arm, said plate and said arm receiving said edge portion therebetween.
Claim 9
Dependent Claim
40 words
In a power shovel as set forth in claim 7, wherein said bucket member carries a plurality of teeth spaced along said edge portion and projecting from the same, said threaded clamping member being interposed between two of said teeth.
Claim 10
Dependent Claim
58 words
In a power shovel as set forth in claim 1, said free end portion having a face of circular cross section about said tilting axis, and said blade member being formed with an opening rotatably receiving said end portion, said tilting axis extending in the direction of elongation of said arm and being transverse to said pivot axis.
Claim 11
Dependent Claim
102 words
In a power shovel as set forth in claim 9, said second securing means including a first member formed with a plurality of openings extending therein in the direction of said tilting axis, a second member formed with an opening extending in the direction of said tilting axis, said first and second members being secured on said arm and on said blade member respectively against angular movement about said tilting axis, said openings being equidistant from said tilting axis, and a securing member simultaneously received in said opening of said second member and in one of the openings of said first member.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |