Abstract: A light guide panel (LGP) having a surface which has a first direction and a second direction vertical with each other is provided. The LGP includes an optical element array and a rubbing portion. The optical element array is disposed on the surface of the LGP and extended in the first direction. The rubbing portion is disposed on the surface of the LGP and extended in the second direction. Moreover, a fabricating method of the LGP by utilizing a cutting tool is also provided.

Abstract: A fan assembly includes two fans, and a number of rigid bars. The fans are connected in series. Each of the fans includes an impeller. The impellers of the fans rotate in opposite directions. The rigid bars extend through the fans and are fixed to the fans, to counteract opposing torque forces produced by the fans.

Abstract: The present invention provides fan with an inrunner motor. The fan includes a fan frame, a rotor and a stator. The fan frame includes a base. The rotor includes a hub, a bushing and a magnetic member, wherein the magnetic member sleeves on the bushing. The stator is disposed on the base and coupled with the rotor, and the stator includes a shaft through the bushing, wherein an end of the shaft is fixed on the base.

Abstract: A fan includes an impeller, a motor and a fan frame. The motor is coupled to the impeller and drives the impeller to rotate. The impeller and the motor are accommodated in the fan frame. The fan frame has a main body, an inner circular portion formed with a passage, a guiding portion forming an outlet of the fan, a motor base and a plurality of supporting elements. The guiding portion is connected to the inner circular portion. The motor base is disposed in the center of the passage on the main body. The supporting elements are connected between the main body and the motor base, and each of the supporting elements has a suspended portion which is not connected to the guiding portion.

Abstract: A method for preparing hexose derivatives comprises the steps of providing a silylated hexose, treating the silylated hexose with a first carbonyl compound in the presence of a catalyst to form an ketalized hexose, treating the ketalized hexose with a second carbonyl compound followed by treating with a first reductant to form an etherized hexose, and converting the etherized hexose into a target hexose derivative, which can be 2-alcohol hexose, 3-alcohol hexose, 4-alcohol hexose, or a 6-alcohol hexose. In particular, the present invention can prepare the hexose derivatives with highly regioselective scheme to protect individual hydroxyls of monosaccharide units and install an orthogonal protecting group pattern in a one-pot manner.

Abstract: A fan includes an impeller, a motor and a fan frame. The motor is coupled to the impeller and drives the impeller to rotate. The impeller and the motor are accommodated in the fan frame. The fan frame has a main body, an inner circular portion formed with a passage, a guiding portion forming an outlet of the fan, a motor base and a plurality of supporting elements. The guiding portion is connected to the inner circular portion. The motor base is disposed in the center of the passage on the main body. The supporting elements are connected between the main body and the motor base, and each of the supporting elements has a suspended portion which is not connected to the guiding portion.

Abstract: The present invention provides fan with an inrunner motor. The fan includes a fan frame, a rotor and a stator. The fan frame includes a base. The rotor includes a hub, a bushing and a magnetic member, wherein the magnetic member sleeves on the bushing. The stator is disposed on the base and coupled with the rotor, and the stator includes a shaft through the bushing, wherein an end of the shaft is fixed on the base.

Abstract: A bumper for an umbrella is made of resilient material and is an undulating tube composed of a securing end (32), a serpentine middle portion (34), an abutting end (36) and a straight through hole (not numbered) defined through securing end (32), the serpentine middle portion (34) and the abutting end (36). The bumper is compressed at the serpentine middle portion (34) to damp the shock caused by bumping of a sliding ring.

Abstract: An umbrella runner assembly has a runner and multiple connectors. The runner has a tubular body with a top and a bottom, a top flange and multiple through holes. The top flange has an outer periphery and is formed on the top of the tubular body. The through holes are defined through the top flange and arranged in a circle. The connectors are connected to the tubular body of the runner. Each connector has a main body and a resilient strap connected to the main body and having a bottom provided with a hook engaging with one of the through holes in the top flange of the runner. With such an arrangement, the umbrella runner assembly is easily and conveniently assembled.

Abstract: A stretcher base has a tubular body, a rod connecting portion and a buffer. The tubular body is adapted to be slidably mounted on the shank of the umbrella and has a top and a bottom. The rod connecting portion is formed on the bottom of the tubular body and is adapted to pivotally connect the rods of the stretcher. The buffer is made of resilient material and is formed on the top of the tubular body. Accordingly, the stretcher base can provide an excellent shock-absorbing efficiency with the buffer.

Abstract: A bumper for an umbrella is made of resilient material and is an undulating tube composed of a securing end (32), a serpentine middle portion (34), an abutting end (36) and a straight through hole (not numbered) defined through securing end (32), the serpentine middle portion (34) and the abutting end (36). The bumper is compressed at the serpentine middle portion (34) to damp the shock caused by bumping of a sliding ring.