Abstract: Disclosed is a dust collector provided with a dust-removing unit. The disclosed dust collector comprises: a first centrifugal separating tube defining a first centrifugal area for separating dust from air suctioned in through a first inlet; a first dust box for collecting dust separated in the first centrifugal area; a first detaching portion having a first exhaust pipe unit for exhausting the air from the first centrifugal separating tube and the first dust box to the outside; and a handle unit for maintaining the first centrifugal separating tube and the first dust box coupled together, or for releasing the coupling thereof.

Abstract: A portable air blower includes a housing having an air inlet and an air outlet, a fan rotatably mounted in the housing, a gear train attached to the housing to rotate the fan, a drive shaft having a first end and a second end, the first end secured to the gear train to operate the gear train, and a crank arm secured to the second end of the drive shaft to rotate the drive shaft manually.

Abstract: The apparatus provides for evacuation of the egg yoke and egg white from an egg through one hole in the egg shell. An egg with one hole in the egg shell is positioned on the apparatus. The one hole in the egg shell is positioned over a hollow tube which extends into the egg. The hollow tube aligns an egg collection opening in an egg seal with the egg collection passageway and supplies air at atmospheric pressure into the egg. When the interior of a bottle has a pressure below atmospheric pressure from a vacuum cleaner the egg yoke and egg white flow into the bottle. In a second embodiment, the apparatus provides for both evacuation and flushing of an egg.