1. A fan apparatus comprising:
a frame having a through chamber, an inlet opening formed in a front of the through chamber and an outlet opening formed in a back of the through chamber;
a motor mounted inside the through chamber and has a body and a shaft protruding from the body; and
at least one fan blade assembly configured inside the through chamber and comprising:
a stationary blade fixed inside the through chamber and being around an outside of the body of the motor, wherein the stationary blade has a ring and multiple first blade parts that are radially extending from an outside of the ring according to a first slant curve direction; and
a moving blade coupled to the shaft along a same axle center as the stationary blade, wherein the moving blade has a seat and multiple second blade parts that are radially extending from an outside of the seat according to a second slant curve direction, wherein the first slant curve direction is opposite to the second slant curve direction;
wherein when each first blade part is correspond to the corresponding second blade part, a first included angle is formed between each first blade part of the stationary blade and the corresponding second blade part of the moving blade.
2. The fan apparatus as claimed in claim 1, wherein a second included angle formed between each second blade part of the moving blade and an axle center of the moving blade is between 45 and 65 degree.
3. The fan apparatus as claimed in claim 1, wherein the first included angle is between 85 and 95 degree.
4. The fan apparatus as claimed in claim 2, wherein the first included angle is between 85 and 95 degree.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fixed window which has at least one glass pane which has at least one edge extending into a frame, the frame being formed with a channel into which the edge of the glass can pass, the channel having a width which is greater than the width of the thickest glass edge that will extend into the channel, the channel comprising a pair of opposed side walls, one sidewall being provided with a bead member which presses against one side of the glass, the other sidewall being provided with a gasket member that presses against the other side of the glass, the gasket member at least being compressible to accommodate different thicknesses of glass.
2. The window as claimed in claim 1, wherein the channel is substantially U-shaped and comprises a pair of opposed side walls and a connecting back wall.
3. The window as claimed in claim 2, wherein the channel has a width of between 15-50 millimetres.
4. The window as claimed in claim 2, wherein the opposed sidewalls of the channel are provided with a small slot to anchor the bead and the gasket in the channel.
5. The window as claimed in claim 4, wherein the bead has a rear portion that can be held by the small slot on the sidewall to hold the bead in position.
6. A sliding window assembly which comprises a sill, a front sliding window and a rear sliding window, the front sliding window and the rear sliding window comprising a lower horizontal support frame to support the window glass, the sill comprising a front portion facing the outside of the assembly and a rear portion adjacent the inside of the assembly, the rear portion being provided with a vertical track to enable the rear sliding window to slide along this track, the front portion being provided with an elongate channel,.the channel having a vertical track to enable the front sliding window to slide along this track, the lower horizontal support frame on the front sliding window extending at least partially into the elongate channel to provide a measure of lateral restraint for the front sliding window.
7. The window as claimed in claim 6, wherein the elongate channel is spaced somewhat above the front portion of the sill and an upstanding wall is provided to space the elongate channel in this manner.
8. The window as claimed in claim 7, wherein one or more drain openings are provided in the upstanding wall to drain water.