Abstract: A bracket assembly for mounting a loudspeaker to a support surface includes a generally L-shaped wall bracket including an adjustment plate including a slot and a mounting flange mountable to the support surface. The bracket assembly includes a generally U-shaped speaker bracket including a central plate mountable to the loudspeaker, a top arm, and a bottom arm. The bracket assembly includes a generally U-shaped intermediate bracket having a joining plate including a first aperture, an upper flange, and a lower flange. The intermediate bracket is coupled to the speaker bracket and rotatable about an axis defined between the top arm and the bottom arm for providing pan adjustability of the loudspeaker. The wall bracket is connectable to the intermediate bracket via a first fastener received through the slot and the first aperture, a position of the first fastener movable along the slot for providing tilt adjustability of the loudspeaker.

Abstract: A bracket assembly for mounting a loudspeaker to a support surface includes a generally L-shaped wall bracket including an adjustment plate including a slot and a mounting flange mountable to the support surface. The bracket assembly includes a generally U-shaped speaker bracket including a central plate mountable to the loudspeaker, a top arm, and a bottom arm. The bracket assembly includes a generally U-shaped intermediate bracket having a joining plate including a first aperture, an upper flange, and a lower flange. The intermediate bracket is coupled to the speaker bracket and rotatable about an axis defined between the top arm and the bottom arm for providing pan adjustability of the loudspeaker. The wall bracket is connectable to the intermediate bracket via a first fastener received through the slot and the first aperture, a position of the first fastener movable along the slot for providing tilt adjustability of the loudspeaker.

Abstract: This invention is involved with a preparation method of 2,6-dichloro-4-trifluoromethyl-aniline. With this process, p-Chlorobenzotrifluoride is used as the starting material and subjected to halogenation reaction and ammoniation reaction and through separation of reaction products the desired 2,6-dichloro-4-trifluoromethyl-aniline is obtained. In addition, ammonia is recovered from the surplus ammonia water in ammoniation reaction. This applied invention in characterized by simple process, cheap and easy-available raw materials, high reaction yield and friendly environment.

Abstract: This invention is involved with a preparation method of 2,6-dichlor-4-trifluoromethyl aniline. With this process, 4-chlorotrifluoromethyl benzene is used as the starting material and subjected to halogenation reaction and ammoniation reaction and through separation of reaction products the desired 2,6-dichlor-4-trifluoromethyl aniline is obtained. In addition, ammonia is recovered from the surplus ammonia water in ammoniation reaction. This applied invention in characterized by simple process, cheap and easy-available raw materials, high reaction yield and friendly environment.