초록 ▼

In apparatus for vacuuming particulate matter an enclosed housing includes at least one inlet for ingress of particulate matter and at least one outlet enabling air to egress from the housing, the inlet and outlet being oppositely disposed. A fan is connected to the at least one inlet and one outlet

In apparatus for vacuuming particulate matter an enclosed housing includes at least one inlet for ingress of particulate matter and at least one outlet enabling air to egress from the housing, the inlet and outlet being oppositely disposed. A fan is connected to the at least one inlet and one outlet to generate a partial vacuum within the housing, and a cyclone is connected to the at least one outlet removing secondary particulate matter contained in the particulate matter. A duct interconnects the cyclone and a region of the housing spaced therefrom for conducting air from the housing to the cyclone. A duct inlet in the form of a slit extends transversely across the housing in the region of the at least one inlet. The inlet and duct inlet cause the air and entrained particulate matter to swirl within the region in the housing between the at least one inlet and the at least one outlet thereby depositing primary particulate matter within the housing and causing secondary particulate matter to enter the duct inlet.

대표청구항 ▼

Apparatus for vacuuming particulate matter, comprising: an enclosed barrierless chamber including at least one inlet for ingress of air and said particulate matter for collecting primary particulate matter and an outlet enabling air and secondary particulate matter to egress from said chamber, said

Apparatus for vacuuming particulate matter, comprising: an enclosed barrierless chamber including at least one inlet for ingress of air and said particulate matter for collecting primary particulate matter and an outlet enabling air and secondary particulate matter to egress from said chamber, said barrierless chamber being formed without internal obstructions to enable substantially free movement of said air and particulate matter therein; cyclone means mounted outside said chamber and including an intake connected to said outlet for removing said secondary particulate matter; fan means for generating a partial vacuum within said chamber through said cyclone means; and duct means for conducting the air and secondary particulate matter from said outlet to said intake, and including a duct inlet disposed within said chamber in the region of said at least one inlet, said duct inlet defining said outlet, said at least one inlet being disposed with respect to said duct inlet such that the air and entrained particulate matter is caused to swirl within said barrierless chamber, thereby depositing primary particulate matter in said chamber and causing the air and secondary particulate matter to enter said duct inlet.