|
US3910497A
(en)
*
|
1971-11-01 |
1975-10-07 |
Rockwell International Corp |
Hydraulic valve operator and remote control
|
|
US4082567A
(en)
*
|
1976-07-26 |
1978-04-04 |
The Carborundum Company |
Method for thermally killing roots in sewer lines
|
|
US4141753A
(en)
*
|
1976-12-27 |
1979-02-27 |
Creed Bruce W |
Method and apparatus for cleaning suction ducts
|
|
US4207647A
(en)
*
|
1977-06-16 |
1980-06-17 |
Mcneil Corporation |
Mobile sewer cleaning and vacuum unit
|
|
US4134174A
(en)
*
|
1977-08-29 |
1979-01-16 |
Super Products Corporation |
Sewer and catch basin cleaner
|
|
US4234980A
(en)
*
|
1979-05-16 |
1980-11-25 |
Aquatech, Inc. |
Apparatus for sewer cleaning and the like
|
|
US4218803A
(en)
*
|
1979-05-25 |
1980-08-26 |
Clifford Jack R |
Implement for cleaning tubular culverts
|
|
FR2480901B1
(fr)
*
|
1980-04-18 |
1985-10-11 |
Coopetanche Sa |
Procede de garnissage interne d'une conduite
|
|
US4795495A
(en)
*
|
1985-10-11 |
1989-01-03 |
Village Of Streamwood |
Sewer cleaning device
|
|
US4878517A
(en)
*
|
1988-08-15 |
1989-11-07 |
Sewer Rodding Equipment Co. |
High pressure hose pulsation attachment
|
|
US4933018A
(en)
*
|
1988-08-15 |
1990-06-12 |
Sewer Rodding Equipment Co. |
High pressure hose pulsation cleaning method
|
|
US5022463A
(en)
*
|
1990-03-08 |
1991-06-11 |
Ohmstede Mechanical Services, Inc. |
Multi-hose flexible lance tube cleaning system
|
|
US5129455A
(en)
*
|
1990-03-08 |
1992-07-14 |
Ohmstede Mechanical Services, Inc. |
Multi-lance tube cleaning system having flexible portions
|
|
US5002120A
(en)
*
|
1990-03-08 |
1991-03-26 |
Boisture Thomas B |
Multi-lance tube cleaning system
|
|
US5067558A
(en)
*
|
1990-03-08 |
1991-11-26 |
Ohmstede Mechanical Services, Inc. |
Multi-lance tube cleaning system
|
|
US5341539A
(en)
*
|
1990-11-01 |
1994-08-30 |
Sheppard Sheron R |
Apparatus for cleaning waste collection system
|
|
US5129957A
(en)
*
|
1990-11-01 |
1992-07-14 |
Ray Harvey Company, Inc. |
Method for cleaning sewers
|
|
US5068940A
(en)
*
|
1990-11-01 |
1991-12-03 |
Ray Harvey Company, Inc. |
Apparatus for cleaning sewers
|
|
DE9313887U1
(de)
*
|
1992-11-12 |
1993-11-11 |
Rohrreinigung Haas Gmbh & Co |
Einrichtung zum Reinigen von Drainagerohren in Eisenbahntunnels
|
|
DE9215406U1
(pt)
*
|
1992-11-12 |
1992-12-24 |
Rohrreinigung Haas Gmbh & Co., 7000 Stuttgart, De |
|
|
US5626684A
(en)
*
|
1995-01-26 |
1997-05-06 |
Rodarte; Frank |
Method and apparatus for sewage surcharge dissipation
|
|
US5988188A
(en)
*
|
1996-12-31 |
1999-11-23 |
Jir, Inc. |
Method and apparatus to remove obstructions from sewers without cutters or chemicals
|
|
US5946767A
(en)
*
|
1998-04-02 |
1999-09-07 |
Gapvax, Inc. |
Pipe cleaning vehicle
|
|
US6604536B1
(en)
|
1999-08-02 |
2003-08-12 |
Miller Environmental Group, Inc. |
Apparatus for removing PCBs, contaminants and debris from gas transmission lines
|
|
US6523554B1
(en)
*
|
2000-09-06 |
2003-02-25 |
Harvey J. Bryant, Sr. |
Street sewer passive clean-out system
|
|
NO315790B1
(no)
*
|
2002-01-30 |
2003-10-27 |
Intel Sampling As |
Fremgangsmåte for å lösne og fragmentere belegg fra innsiden av rör
|
|
US6702939B2
(en)
*
|
2002-03-15 |
2004-03-09 |
Ronald L. Thompson |
Sewer cleaning tool
|
|
CA2499209A1
(en)
*
|
2002-09-17 |
2004-04-01 |
The White Oak Partnership, L.P. |
Wastewater biological treatment system and method therefor
|
|
US7959741B2
(en)
*
|
2008-12-18 |
2011-06-14 |
Ted Joseph Green |
Fuel tank cleaning method
|