US4848483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool attachment means for tractors
Assignee: Rockland Inc
•
Filing: 1987-04-13
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Granted: 1989-07-18
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Expires: 2007-04-13
Abstract
Abstract An attachment for a tractor generally consisting of a main support frame mountable on a tractor, a tool support member mounted on the main support frame for pivotal movement about a first axis, a tool mounted on the tool support member for pivotal movement about a second axis, means operatively interconnecting the main support frame and the tool support member for angularly displacing the tool support member relative to the main support frame about the first axis, and means operatively interconnecting the tool support member and the tool for angularly displacing the tool relative to the tool support member about the second axis.
Inventors
- 👤 Ashley Heiple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:44
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
111 words
An attachment for a tractor comprising a main support frame mountable on said tractor, tool support means mounted on said main support frame for pivotal movement about a first axis disposed along a longitudinal centerline of said main support frame, a tool mounted on said tool support means for a pivotal movement about a second axis, means operatively interconnecting said main support frame and said tool support means for angularly displacing said tool support means relative to said main support frame about said first axis, and means operatively interconnecting said tool support means and said tool for angularly displacing said tool relative to said tool support means about said second axis.
Claim 2
Dependent Claim
111 words
An attachment for a tractor comprising a main support frame mountable on said tractor, tool support means mounted on said main support frame for pivotal movement about a first axis disposed along a longitudinal centerline of said main support frame, a tool mounted on said tool support means for a pivotal movement about a second axis, means operatively interconnecting said main support frame and said tool support means for angularly displacing said tool support means relative to said main support frame about said first axis, and means operatively interconnecting said tool support means and said tool for angularly displacing said tool relative to said tool support means about said second axis.
Claim 3
Dependent Claim
21 words
An attachment according to claim 1 wherein each connection of said tool to said tool support means includes a self-aligning bearing.
Claim 4
Dependent Claim
17 words
An attachment according to claim 1 wherein said second axis is disposed perpendicular to said first axis.
Claim 5
Dependent Claim
37 words
An attachment according to claim 1 wherein said main support frame includes means for mounting said main support frame on said tractor for angular displacement of said support frame relative to said tractor about a third axis.
Claim 6
Dependent Claim
35 words
An attachment according to claim 4 including means mounted on said main support frame and operatively connectable to said tractor for angularly displacing said main support frame relative to said tractor about said third axis.
Claim 7
Dependent Claim
28 words
An attachment according to claim 5 wherein said means for angularly displacing said main support frame relative to said tractor comprises at least one hydraulically actuated cylinder assembly.
Claim 8
Dependent Claim
13 words
An attachment according to claim 1 wherein said tool comprises a bulldozer blade.
Claim 9
Dependent Claim
12 words
An attachment according to claim 1 wherein said tool comprises a rake.
Claim 10
Dependent Claim
13 words
An attachment according to claim 1 wherein said tool comprises a shear blade.
Claim 11
Dependent Claim
12 words
An attachment according to claim 1 wherein said tool comprises a bucket.
Claim 12
Dependent Claim
15 words
An attachment according to claim 1 wherein said main support frame has a C-shaped configuration.
Claim 13
Dependent Claim
19 words
An attachment according to claim 1 wherein said tool support means is a trunion mounted on said support frame.
Claim 14
Dependent Claim
23 words
An attachment according to claim 12 wherein said tool support means includes a portion projecting through an opening in said main support frame.
Claim 15
Dependent Claim
26 words
An attachment according to claim 13 wherein said tool includes a pair of brackets each pivotally mounted on an end portion of said tool support means.
Claim 16
Dependent Claim
28 words
An attachment according to claim 1 wherein said means for angularly displacing said tool support means relative to said main support frame comprises a hydraulically actuated cylinder assembly.
Claim 17
Dependent Claim
41 words
An attachment according to claim 1 wherein said tool support means includes a bracket and said means for angularly displacing said tool relative to said tool support means operatively interconnects said bracket and a laterally disposed end portion of said tool.
Claim 18
Dependent Claim
26 words
An attachment according to claim 1 wherein said means for angularly displacing said tool support means relative to said main support frame comprises an extendable link.
Claim 19
Dependent Claim
24 words
An attachment according to claim 1 wherein said means for angularly displacing said tool relative to said tool support means comprises an extendable link.
Claim 20
Dependent Claim
134 words
A tool attachment means for a tractor comprising, a main support frame pivotally mountable on said tractor, an upwardly extending tool support means mounted on said main support frame for pivotal movement about a first generally longitudinal axis, a tool mounted on said tool support means for pivotal movement about a second upright axis, means for adjusting the position of the second axis relative to said tool support means about a transverse axis to adjust the pitch of the tool, means operatively interconnecting said main support frame and said tool support means for tilting said tool support means relative to said main support frame about said first axis, and means operatively interconnecting said tool support means and said tool for angularly displacing said tool relative to said tool support means about said second axis.
Claim 21
Dependent Claim
134 words
A tool attachment means for a tractor comprising, a main support frame pivotally mountable on said tractor, an upwardly extending tool support means mounted on said main support frame for pivotal movement about a first generally longitudinal axis, a tool mounted on said tool support means for pivotal movement about a second upright axis, means for adjusting the position of the second axis relative to said tool support means about a transverse axis to adjust the pitch of the tool, means operatively interconnecting said main support frame and said tool support means for tilting said tool support means relative to said main support frame about said first axis, and means operatively interconnecting said tool support means and said tool for angularly displacing said tool relative to said tool support means about said second axis.
Claim 22
Dependent Claim
54 words
An attachment according to claim 19 wherein said pitch adjusting means includes a connecting member mountable on said tool, said connecting member being adjustable angularly relative to said tool about an axis, and said connecting member including means disposed eccentrically relative to said axis for connecting an end portion of said tool holding member.
Claim 23
Dependent Claim
28 words
An attachment according to claim 20 wherein said means for connecting an end portion of said tool holding means comprises a self-aligning bearing which receives said end portion.
Claim 24
Dependent Claim
20 words
An attachment according to claim 20 wherein said connecting member comprises a cap member detachably mounted on said tool member.
Claim 25
Dependent Claim
38 words
An attachment according to claim 22 wherein said cap member is detachably mounted on said tool by means of a set of bolts circumferentially spaced relative to said axis about which said cap member may be angularly adjusted.
Claim 26
Dependent Claim
28 words
An attachment according to claim 23 wherein said means for connecting an end portion of said tool support means comprises a self-adjusting bearing which receives said end portion.
Claim 27
Dependent Claim
49 words
An attachment according to claim 24 wherein said tool includes a mounting bracket having an opening therethrough, said cap member is mounted on said mounting bracket overlying said bracket opening and said end portion of said tool support means extends through said opening and connects to said cap member.
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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) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |