Class F28G : CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
Subclass 1/10: Non-rotary, e.g. reciprocated, appliances (F28G 3/00 takes precedence) having scrapers, hammers, or cutters, e.g. rigidly mounted resiliently mounted
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10859331 | Method and system for cleaning a heat exchange system of a heating ventilation and air conditioning system | Oct 11, 19 | Dec 08, 20 | BLUE BOX AIR, LLC |
| 10179352 | Pivoting tube brush | May 25, 16 | Jan 15, 19 | Crossford International, LLC |
| 9657431 | Laundry treating apparatus having cleaning device | Oct 18, 13 | May 23, 17 | LG ELECTRONICS INC. |
| 9146063 | Machine for descaling cellular bodies of an air-water heat exchanger | Oct 07, 10 | Sep 29, 15 | ARTS |
| 9009905 | Pipe pig and method of cleaning a pipe | Jul 31, 09 | Apr 21, 15 | SIVACOE, ORLANDE |
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