US4903418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic loader attachment
Assignee: Individual
•
Filing: 1988-12-08
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Granted: 1990-02-27
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Expires: 2008-12-08
Abstract
Abstract An apparatus for removing trees, bushes, and other plants for transplantation and other purposes consisting of an elongated, concave scoop mounted on a rigid frame. This apparatus may be adapted for attachment to any standard hydraulically-operated loader. Providing support to the scoop and increasing the rearward carrying capacity of the scoop are gussets which are affixed at the point at which the scoop attaches to the frame.
Inventors
- 👤 Robert W. Loudon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:14
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/04; A01G23/043
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
163 words
Digger apparatus for attachment to a conventional hydraulic loader, such as a wheel tractor or a crawler type tractor, comprising: frame means for attaching said digger apparatus to said hydraulic loader; scooping means secured to said frame, said scooping means being for digging into soil and removing a plant from soil within which the plant is growing with a minimal amount of disruption to the soil, said scooping means including an elongated, concave-shaped upper face and concave-shaped base coupled to said frame means; said upper face and said base joined to define side edges; supporting means, said supporting means including pieces affixed to said sides edges of said scooping means and to a forward face of said frame means for supporting and increasing the rearward carrying capacity of said scooping means, and said scooping means and said supporting means cooperating to form an enclosure means, said enclosure means being for stabilizing the plant carried on said scooping means and between said supporting means.
Claim 2
Dependent Claim
163 words
Digger apparatus for attachment to a conventional hydraulic loader, such as a wheel tractor or a crawler type tractor, comprising: frame means for attaching said digger apparatus to said hydraulic loader; scooping means secured to said frame, said scooping means being for digging into soil and removing a plant from soil within which the plant is growing with a minimal amount of disruption to the soil, said scooping means including an elongated, concave-shaped upper face and concave-shaped base coupled to said frame means; said upper face and said base joined to define side edges; supporting means, said supporting means including pieces affixed to said sides edges of said scooping means and to a forward face of said frame means for supporting and increasing the rearward carrying capacity of said scooping means, and said scooping means and said supporting means cooperating to form an enclosure means, said enclosure means being for stabilizing the plant carried on said scooping means and between said supporting means.
Claim 3
Dependent Claim
20 words
A digger as defined in claim 1 in which said side edges converge to define a rounded front lip area.
Claim 4
Dependent Claim
16 words
A digger as defined in claim 2 in which said rounded front lip area is sharpened.
Claim 5
Dependent Claim
16 words
A digger as defined in claim 2 in which said rounded front lip area is beveled.
Claim 6
Dependent Claim
14 words
A digger as defined in claim 1 in which said side edges are upturned.
Claim 7
Dependent Claim
21 words
A digger as defined in claim 5 in which said upturned sides of said scoop converge to a front lip area.
Claim 8
Dependent Claim
15 words
A digger as defined in claim 6 in which said front lip area is sharpened.
Claim 9
Dependent Claim
15 words
A digger as defined in claim 7 in which said pieces are triangular in shape.
Claim 10
Dependent Claim
32 words
A digger as defined in claim 8 in which a longitudinal axis of said scooping means forms an angle with a vertical axis of said frame means of less than ninety degrees.
Claim 11
Dependent Claim
24 words
A digger as defined in claim 9 in which a length of said scooping means is greater than a height of said frame means.
Claim 12
Dependent Claim
221 words
A digger attachment for a hydraulic loader, such as a wheel tractor or a crawler type tractor, having a hydraulically actuated loader mechanism which includes a pair of longitudinal pivoted lift arms arranged at opposite sides of the loader, with front end sections projected in a direction opposite to that of the hydraulic loader for normally supporting a bucket which has been detached and removed from the lift arms, said attachment comprising: (a) a frame; (b) means affixed to said frame and adapted to connect said frame to the hydraulically actuated loader mechanism for moving said frame; (c) an elongated and concave scoop affixed to and forward of said frame, said scoop having an longitudinal axis which forms an angle to said frame of less than ninety degrees, said scoop having upturned side edges: (d) said upturned side edges having front portions which converge to define a front lip area; (e) gussets, consisting of support pieces affixed to the upturned side edges of the scoop in proximity to an area where the scoop contacts the frame, said gussets including an inner face and an outer face, oriented in a generally vertical fashion; (f) said gussets and said scoop cooperatively forming a stabilizing means, said stabilizing means being for facilitating the transfer of a plant on said scoop and between said gussets.
Claim 13
Dependent Claim
221 words
A digger attachment for a hydraulic loader, such as a wheel tractor or a crawler type tractor, having a hydraulically actuated loader mechanism which includes a pair of longitudinal pivoted lift arms arranged at opposite sides of the loader, with front end sections projected in a direction opposite to that of the hydraulic loader for normally supporting a bucket which has been detached and removed from the lift arms, said attachment comprising: (a) a frame; (b) means affixed to said frame and adapted to connect said frame to the hydraulically actuated loader mechanism for moving said frame; (c) an elongated and concave scoop affixed to and forward of said frame, said scoop having an longitudinal axis which forms an angle to said frame of less than ninety degrees, said scoop having upturned side edges: (d) said upturned side edges having front portions which converge to define a front lip area; (e) gussets, consisting of support pieces affixed to the upturned side edges of the scoop in proximity to an area where the scoop contacts the frame, said gussets including an inner face and an outer face, oriented in a generally vertical fashion; (f) said gussets and said scoop cooperatively forming a stabilizing means, said stabilizing means being for facilitating the transfer of a plant on said scoop and between said gussets.
Claim 14
Dependent Claim
15 words
The digger attachment as defined in claim 11 wherein said gussets are triangular in shape.
Claim 15
Dependent Claim
40 words
The digger attachment as defined in claim 11 wherein said inner face and said outer face of said gussets angle upwardly and outwardly from an area at which said gussets are affixed to the upturned side edges of said scoop.
Claim 16
Dependent Claim
60 words
The digger attachment as defined in claim 11 wherein said scoop, at its point of contact with said frame, is disposed partially below a base of the frame and extends gradually upward to the lip area of said scoop so that the longitudinal axis of said scoop forms an angle of less than ninety degrees with the generally vertical frame.
Claim 17
Dependent Claim
30 words
A digger attachment as defined in claim 11, in which said frame includes a backing plate, said backing plate comprising a generally vertical plate to which said scoop is affixed.
Claim 18
Dependent Claim
30 words
A digger attachment as defined in claim 15, in which said backing plate is rigidly joined to said hydraulic loader by attachment means, said attachment means including an attachment plate.
Claim 19
Dependent Claim
31 words
A digger attachment as defined in claim 15 further including alternative attachment means, wherein said alternative attachment means including U-shaped, horizontal beams and vertical beams affixed rearwardly of said backing plate.
Claim 20
Dependent Claim
150 words
A hydraulic loader attachment comprising: (a) a frame, said frame having a front face; (b) a scoop connected forwardly of said front face, said scoop having a elongate concave-shaped upper face and an elongate concave-shaped base; (c) said upper face and said base joined into a side edge, said forward portion of said edge converging to form a front area; (d) said front area being chamfered to facilitate the entry of said scoop into the soil and the removal of a plant with limited damage to said plant; (e) supporting means, said supporting means including lower portions affixed to said side edge of said scoop and rear portions affixed to said vertical face of said frame; (f) said supporting means and said scoop cooperating to form an enclosure means, said enclosure means being for stabilizing the plant carried on said upper face of said scoop and between said supporting means.
Claim 21
Dependent Claim
150 words
A hydraulic loader attachment comprising: (a) a frame, said frame having a front face; (b) a scoop connected forwardly of said front face, said scoop having a elongate concave-shaped upper face and an elongate concave-shaped base; (c) said upper face and said base joined into a side edge, said forward portion of said edge converging to form a front area; (d) said front area being chamfered to facilitate the entry of said scoop into the soil and the removal of a plant with limited damage to said plant; (e) supporting means, said supporting means including lower portions affixed to said side edge of said scoop and rear portions affixed to said vertical face of said frame; (f) said supporting means and said scoop cooperating to form an enclosure means, said enclosure means being for stabilizing the plant carried on said upper face of said scoop and between said supporting means.
Claim 22
Dependent Claim
32 words
A hydraulic loader attachment according to claim 18, in which the frame further comprises a backing plate, said backing plate being generally vertical and rearward of said scoop and said supporting means.
Claim 23
Dependent Claim
36 words
A hydraulic loader attachment according to claim 19 in which the frame further comprises an attachment plate, said attachment plate fixed rearward of said backing plate, for rigidly joining said backing plate to the hydraulic loader.
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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) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |