| 5374174 |
Apparatus for/installing a liner within a service pipe or the like |
— |
1994-12-20 |
| 5358359 |
Apparatus for everting a tube |
— |
1994-10-25 |
| 5248419 |
Sewage sludge treatment with gas injection |
Robert D. Blythe, William A. Cobb, Philip M. Grover |
1993-09-28 |
| 5150989 |
Method and apparatus for locating a service pipe outlet transversely connected to a lined main pipe |
Todd W. Goodwin |
1992-09-29 |
| 5147563 |
Sewage sludge treatment with gas injection |
Robert D. Blythe, William A. Cobb, Philip M. Grover |
1992-09-15 |
| 5108533 |
Method and combination for installing a liner within a service pipe transversely connected to a main pipe |
Frank A. Scudder, Richard P. Baxter |
1992-04-28 |
| 5044824 |
Method and apparatus for locating a service pipe outlet transversely connected to a lined main pipe |
Todd W. Goodwin |
1991-09-03 |
| 4936983 |
Sewage sludge treatment with gas injection |
Philip M. Grover |
1990-06-26 |
| 4819721 |
Remotely controlled articulatable hydraulic cutter apparatus |
— |
1989-04-11 |
| 4776370 |
Apparatus for securing a cable to a tubular pipe liner |
— |
1988-10-11 |
| 4695388 |
Apparatus and process for rapid sewage sludge separation |
— |
1987-09-22 |
| 4685983 |
Method and apparatus for the installation of a liner within a conduit |
— |
1987-08-11 |
| 4668125 |
Self-contained, transportable apparatus for inserting a liner into a pipe |
— |
1987-05-26 |
| 4659464 |
Apparatus for dispersing sludge with gas impingement |
— |
1987-04-21 |
| 4630676 |
Remotely controlled hydraulic cutter apparatus |
— |
1986-12-23 |
| 4582612 |
Sewage sludge treatment apparatus |
— |
1986-04-15 |
| 4530504 |
Stabilizer for manual video game controller |
— |
1985-07-23 |
| 4520524 |
Remotely controlled hydraulic cleaner apparatus |
— |
1985-06-04 |
| 4487699 |
Sewage sludge treatment apparatus and process |
— |
1984-12-11 |