 |
|
|
|
|
|
 Title: |
US5381616:
Rotary rockwheel assemblies
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Disney, Robin E. L.; Malvern, United Kingdom
|
| Assignee: |
R. & R. Trench Equipment Limited, Malvern, United Kingdom
other patents from R. & R. TRENCH EQUIPMENT LIMITED (708006) (approx. 1)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1995-01-17
/ 1992-10-26
|
| Application Number: |
US1992000927395
|
| IPC Code: |
Advanced:
E02F 3/20;
E02F 5/08;
E02F 5/14;
E02F 3/18;
E02F 5/02;
IPC-7:
E02F 5/08;
E02F 5/14;
|
| ECLA Code: |
E02F3/18H; E02F3/20; E02F5/14;
|
| U.S. Class: |
Current:
037/094;
037/189;
037/355;
Original:
037/094;
037/189;
037/355;
|
| Field of Search: |
037/348,362,355,94,189,462,907,104,270,91
405/180,181,183,174
172/832,387
|
| Priority Number: |
| 1990-03-27 |
GB1990000006781 |
|
| Abstract: |
PCT No. PCT/GB91/00435 Sec. 371 Date Sep. 28, 1992 Sec. 102(e) Date Sep. 28, 1992 PCT Filed Mar. 22, 1991 PCT Pub. No. WO91/14836 PCT Pub. Date Oct. 3, 1991.A rotary rockwheel assembly (1) is provided for cutting a narrow trench in the ground when driven along the ground by a vehicle. The assembly (1) comprising a support frame (14), ground-engaging skids (17) on the support frame (14) permitting the support frame to be moved in the direction in which the trench is to be cut, and a rotary cutting wheel (2) carried by the support frame (14). A hydraulic drive motor (8) rotates the cutting wheel (2) about a substantially horizontal axis, and pivot rams (18) serve to lower the cutting wheel (2) relative to the support frame (14) from a raised position in which substantially the whole of the cutting wheel (2) is above the surface (5) of the ground to a lowered position in which a substantial part of the cutting wheel (2) is sunk into the ground in a trench (33) cut by the cutting wheel (2). Such an assembly is capable of cutting a trench in a particularly efficient manner.
|
| Attorney, Agent or Firm: |
Young & Thompson ;
|
| Primary / Asst. Examiners: |
Reese, Randolph A.; Warnick, Spencer
|
| Maintenance Status: |
E2 Expired Check current status
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Designated Country: |
AU CA EP JP US BE DE ES FR GB IT SE
|
| Family: |
Show 9 known family members
|
First Claim:
Show all 10 claims |
I claim:
1. A rotary rockwheel assembly for cutting a narrow trench in the ground when driven along the ground by a vehicle having a chassis, the assembly comprising a support frame connected to said chassis, ground-engaging means rigidly secured to the support frame permitting the support frame to be moved in the direction in which the trench is to be cut, a rotary cutting wheel carried by the support frame, drive means for rotating the cutting wheel about a substantially horizontal axis, and lowering means on the support frame for lowering the cutting wheel relative to the support frame and the ground-engaging means from a raised position in which substantially the whole of the cutting wheel is above the ground to a lowered position in which the cutting wheel cuts into the ground while being rotated by the drive means, wherein the support frame is supported on the ground by the ground-engaging means as the cutting wheel is simultaneously rotated by the drive means and lowered by the lowering means so as to cut into the ground, so that the reaction forces generated by the cutting action are transmitted by way of the ground-engaging means into the ground.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| PCT Number: |
PCT/GB91/00435
WO9114836
|
| PCT Pub./Filed Dates: |
1991-10-03 / 1991-03-22
|
| § 371 / 102(e) Dates: |
1992-09-28 / 1992-09-28
|
| Forward References: |
Show 8 U.S. patent(s) that reference this one
|
|
