| US 7,537,649 B2 | ||
| Air treatment system | ||
| Bradley J. Pippel, Grandville, Mich. (US); Gregory K. Evans, Grand Rapids, Mich. (US); and James Dodds, Grand Rapids, Mich. (US) | ||
| Assigned to Access Business Group International LLC, Ada, Mich. (US) | ||
| Filed on Jul. 12, 2006, as Appl. No. 11/456,984. | ||
| Claims priority of provisional application 60/699193, filed on Jul. 14, 2005. | ||
| Prior Publication US 2007/0012192 A1, Jan. 18, 2007 | ||
| Int. Cl. B01D 46/00 (2006.01) | ||
| U.S. Cl. 96—417 [55/471; 55/472] | 9 Claims |
| 9. An air treatment system comprising:
a housing;
a particulate filter;
a filter frame supporting said particulate filter, said filter frame including a plurality of connectors formed integrally
with said frame, said connectors being removably attached to said housing;
a blower mounted on said housing;
an air flow passage defined in said housing, said air flow passage including a blower inlet and a blower outlet, said blower
and said particular filter positioned in said air flow passage, said blower operable to draw air into said blower inlet, though
said particulate filter and force air out said blower outlet;
a particulate sensor mounted to said housing, said sensor capable of sensing a characteristic of ambient air;
a sensor flow passage defined in said housing separate from said air flow passage, said sensor flow passage including a sensor
inlet and a sensor outlet, said particulate sensor positioned within said sensor flow passage, said sensor outlet positioned
within the flow path of the air forced out of said blower outlet, whereby said air forced out of said blower outlet flows
over said sensor outlet to draw air through said sensor air passage. -
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