Abstract: A stable blower for use primarily with an inflatable structure is disclosed. In one embodiment, the drive axle for the blower's impeller is aligned substantially vertically thereby making it more stable. The inlet and outlet to the blower can be substantially similarly so as to allow the blower to assist with deflation of the inflatable structure by reversing the connection of the blower to the inflatable structure. In another disclosed embodiment, the outlet is aligned substantially vertically so as to allow the blower to be positioned at the base of a leg of a freestanding inflatable structure. The blower's frame can have a domed or a substantially planar top. A two-part impeller with a related conus assembly is also disclosed.

Abstract: The present invention relates generally to a peripheral community apparatus for computers output/input, and more particularly, relates to an apparatus with a firmware that can be upgraded by the current PS2 protocol, wherein the PS2 ports of the peripheral community apparatus for computers output/input are coupled with the PS2 ports of keyboard/mouse on the computer, and the upgraded firmware programs are at first stored in the computer then transmitted into the Flash ROM of the peripheral community apparatus for computers output/input through the existing PS2 ports on both the peripheral community apparatus side and the computer side so that no change of the current connection arrangement is needed.