Patent ID: 7758083
Filing Date: 2010-07-20
Classification: F16L,F24F,Y10S

Abstract:
1. A wall bushing, for an air-conditioner, the bushing comprising: an outer pipe, for coupling with an inlet port of the air-conditioner, having a first end, a second end, and a cross section defined by two arc ends and two parallel sides; an inner pipe, for coupling with an outlet port of the air-conditioner, having a first end, a second end and being located in said outer pipe and tangent with one of the arc ends and jointed thereof with the outer pipe; an outer joint located at the first end of said outer pipe and an inner joint located at the second end of said outer pipe, the inner and outer joints each having a cross section which is greater in diameter than the cross section of the outer pipe; and at least one rod connecting the inner and outer joints to the outer pipe wherein the rod is passed through the outer pipe to connect the outer joint, the inner joint, the outer pipe and the inner pipe together.