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 Title: |
US5575538:
Rock saw with centerline conveyor assembly and method of digging a narrow trench
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Gilbert, Jerry F.; Southlake, TX
Smith, Jack D.; The Colony, TX
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| Assignee: |
Astec Industries, Inc., Chattanooga, TN
other patents from ASTEC INDUSTRIES, INC. (41810) (approx. 100)
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| Published / Filed: |
1996-11-19
/ 1995-06-01
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| Application Number: |
US1995000457991
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| IPC Code: |
Advanced:
E02F 3/20;
E02F 5/08;
E02F 7/02;
E02F 9/02;
Core:
E02F 3/18;
E02F 5/02;
E02F 7/00;
more...
IPC-7:
E01C 23/09;
E02F 5/08;
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| ECLA Code: |
E02F5/10D; E02F3/20; E02F7/02; E02F9/02L;
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| U.S. Class: |
Current:
299/039.2;
037/096;
299/039.3;
Original:
299/039.2;
037/096;
299/039.3;
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| Field of Search: |
299/39.2,39.3,64
037/094,95,96,359
404/091
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| Priority Number: |
| 1995-06-01 |
US1995000457991 |
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| Abstract: |
A rock saw has a cutting wheel and a conveyor assembly capable of retrieving automatically essentially all materials excavated by the cutting wheel and of discharging the retrieved materials into an adjacent truck or the like. The conveyor assembly includes a loading conveyor which is movable from a raised transport position to a lowered operative position. When in its operative position, an inlet end of the loading conveyor is positioned on the ground in a discharge region of the cutting wheel and is biased into engagement with the ground so as not to bounce up and down in operation but so as to ride over rocks and other obstructions without damaging the conveyor. The cutting wheel is both pivotable and slidable with respect to the vehicle mainframe so as to be capable of cutting trenches of radically different depths while still assuring retrieval of essentially all excavated materials by the loading conveyor.
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| Attorney, Agent or Firm: |
Nilles & Nilles, S.C. ;
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| Primary / Asst. Examiners: |
Bagnell, David J.;
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 17 claims |
We claim:
1. An excavating machine comprising:
- (A) a portable chassis;
- (B) a frame assembly mounted on said chassis and extending longitudinally with respect to said chassis, said frame assembly having a longitudinal end portion;
- (C) a rock saw assembly mounted on said end portion of said frame assembly, said rock saw assembly comprising a rotary cutting wheel and, in use, being operable to dig a trench and to discharge materials into a discharge region located longitudinally adjacent said cutting wheel, said rock saw assembly being relatively narrow when compared to said frame assembly;
- (D) a loading conveyor mounted on said frame assembly, said loading conveyor having an inlet end movable from a transport position in which said inlet end is located above the ground to an operative position in which said inlet end rides on the ground in said discharge region, wherein said loading conveyor includes a discharge end and is pivotally mounted on said frame assembly at a pivot axis located longitudinally between said inlet end and said discharge end; and
- (E) further comprising an actuator, mounted on said frame assembly and connected to said loading conveyor at a location between said inlet and discharge ends, which selectively pivots said loading conveyor about said pivot axis, thereby raising and lowering said inlet end.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 8 U.S. patent(s) that reference this one
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