US3599801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controls for hydraulically operated rotary crane
Assignee: Deere and Co
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Filing: 1969-08-19
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Granted: 1971-08-17
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Expires: 1989-08-19
Abstract
Abstract A rotary crane in which the operator''s station is carried on the boom support and the boom support is mounted for lateral swinging on an upright axis. The hydraulic motors for raising and lowering stabilizer legs and for swiveling the boom support are controlled by a valve bank fixed against rotation. Control rods for the valve bank are carried on the swivel axis of the boom support and have their upper ends connected to control levers at the operator''s station and their lower ends connected to the valve bank.
Inventors
- 👤 John Macdougal Roll
- 👤 William Roderick Mac-Gregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:52
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/08; E02F9/10; E02F9/12; E02F9/121; E02F9/123; B; B66; B66C; B66C23/00; B66C23/62; B66C23/84; B66C23/86
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
314 words
In a swingable boom-type implement, a base structure having vertical journal means; an upright boom support having a boom thereon and mounted on the base structure to swing on the vertical axis of the journal means; a plurality of hydraulic motor means associated with the boom support to swing therewith; a plurality of hydraulic motor means associated with and connected to the base structure to restrain swinging in respect to the boom support; an operator''s station mounted on and swingable with the boom support; first and second hydraulic valve means Fixedly mounted on the boom support and base structure respectively for operating the respective motor means associated with the boom support and base structure respectively; control elements adjacent the operator''s station for controlling the valve means with part thereof being connected to the first valve means; a source of hydraulic fluid on the base structure; a fluid-transferring device including inner and outer relatively rotatable members concentric with the aforesaid axis with one of the members being connected to and rotatable with the boom support and the other being connected to and restrained against rotation by the base structure, with one member having fluid lines in communication with the first valve means and the other member having fluid lines in communication with the source, and with the inner of said members being hollow along said axis; a plurality of axially shiftable control rods extending through the hollow inner member; and means connecting the upper ends of the control rods to a part of the control elements for axial shifting of the rods and the lower ends to the second valve means for adjusting the latter in response to axial shifting of the control rods, said means including swivel connections between said control rod and valve means for accommodating angular movement of the boom support on the base structure without affecting shifting of the control rods.
Claim 2
Dependent Claim
314 words
In a swingable boom-type implement, a base structure having vertical journal means; an upright boom support having a boom thereon and mounted on the base structure to swing on the vertical axis of the journal means; a plurality of hydraulic motor means associated with the boom support to swing therewith; a plurality of hydraulic motor means associated with and connected to the base structure to restrain swinging in respect to the boom support; an operator''s station mounted on and swingable with the boom support; first and second hydraulic valve means Fixedly mounted on the boom support and base structure respectively for operating the respective motor means associated with the boom support and base structure respectively; control elements adjacent the operator''s station for controlling the valve means with part thereof being connected to the first valve means; a source of hydraulic fluid on the base structure; a fluid-transferring device including inner and outer relatively rotatable members concentric with the aforesaid axis with one of the members being connected to and rotatable with the boom support and the other being connected to and restrained against rotation by the base structure, with one member having fluid lines in communication with the first valve means and the other member having fluid lines in communication with the source, and with the inner of said members being hollow along said axis; a plurality of axially shiftable control rods extending through the hollow inner member; and means connecting the upper ends of the control rods to a part of the control elements for axial shifting of the rods and the lower ends to the second valve means for adjusting the latter in response to axial shifting of the control rods, said means including swivel connections between said control rod and valve means for accommodating angular movement of the boom support on the base structure without affecting shifting of the control rods.
Claim 3
Dependent Claim
33 words
The structure as set forth in claim 1 in which the axially shiftable control rods are concentric with one another and with the aforesaid axis, whereby the rods may be individually shifted axially.
Claim 4
Dependent Claim
42 words
The structure as set forth in claim 2 in which the rods have axially offset ends, and the means connecting the lower ends to the second valve means includes connecting links that extend from the lower ends to the second valve means.
Claim 5
Dependent Claim
23 words
The structure as set forth in claim 3 in which the swivel connections are between the respective lower ends and the connecting links.
Claim 6
Dependent Claim
41 words
The structure as set forth in claim 4 in which the second valve means is a bank of vertically adjustable valves at least a part of which is offset radially from the aforesaid axis and are connected to the connecting links.
Claim 7
Dependent Claim
47 words
The structure as set forth in claim 1 in which the swivel connections include collars rotatably supported on the rods but restricted against axial shifting in respect to the rods and having connecting link means extending from the collars to the valves of said second valve means.
Claim 8
Dependent Claim
185 words
In a swingable boom-type implement, a base structure having vertical journal means; an upright boom support having a boom thereon and mounted on the base structure to swing on the vertical axis of the journal means; a plurality of hydraulic motor means associated with and connected to the base structure and restrained against swinging with respect to the boom support; an operator''s station mounted on and swingable with the boom support; valve means fixedly mounted on the base structure for operating the respective motor means; control elements adjacent the operator''s station for controlling the valve means; a plurality of control rods shiftable along the aforesaid axis; and connecting means between the upper ends of the control rods and the control elements for axial shifting of the rods and between the lower ends and the valve means for adjusting the latter in response to axial shifting of the control rods, said means including swivel connections between the control rods and valve means mounted on the control rods for accommodating angular movement of the boom support on the base structure without affecting shifting of the control rods.
Claim 9
Dependent Claim
185 words
In a swingable boom-type implement, a base structure having vertical journal means; an upright boom support having a boom thereon and mounted on the base structure to swing on the vertical axis of the journal means; a plurality of hydraulic motor means associated with and connected to the base structure and restrained against swinging with respect to the boom support; an operator''s station mounted on and swingable with the boom support; valve means fixedly mounted on the base structure for operating the respective motor means; control elements adjacent the operator''s station for controlling the valve means; a plurality of control rods shiftable along the aforesaid axis; and connecting means between the upper ends of the control rods and the control elements for axial shifting of the rods and between the lower ends and the valve means for adjusting the latter in response to axial shifting of the control rods, said means including swivel connections between the control rods and valve means mounted on the control rods for accommodating angular movement of the boom support on the base structure without affecting shifting of the control rods.
Claim 10
Dependent Claim
34 words
The structure as set forth in claim 7 in which the control rods are concentric to one another and to the vertical axis with the inner being longer than the outer of the rods.
Claim 11
Dependent Claim
36 words
The structure as set forth in claim 7 in which the control rods are concentric to one another and to the vertical axis with the respective proximate ends thereof being axially offset relative to one another.
Claim 12
Dependent Claim
38 words
The structure as set forth in claim 9 in which the swivel connections are elements having annular surfaces supported on the ends of the control rods for angular movement and against axial movement with respect to the rods.
Claim 13
Dependent Claim
50 words
The structure as set forth in claim 10 in which the connecting means includes links extending from the opposite ends of the control rods to the control elements and valve means with at least part of the links being connected to the rods via the elements having the annular surfaces.
Claim 14
Dependent Claim
29 words
The structure as set forth in claim 9 in which the proximate ends that are axially offset are axially offset progressively from the outer to the inner control rods.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |