Patent ID: 6035849
Filing Date: 2000-03-14
Classification: F23L

Abstract:
An extension assembly for use with a damper assembly, the damper assembly including a portion of a duct, a damper within the duct, and a damper clip having an attaching portion attached to the damper and a control shaft extending through an aperture in the duct, the control shaft having two parallel flat sides merging transversely with two opposite arcuate sides, a handle, and means for securing the handle to the control shaft, the control shaft having means for cooperating with the means for securing the handle to the control shaft, the damper being rotatable about an axis to enable the damper to selective control fluid flow through the duct upon rotation of the control shaft, the handle having an aperture dimensioned to receive the control shaft, said extension assembly providing coupling of the handle to the control shaft and comprising:an extension member including:a connecting portion having a closed end and an open end, said open end having a bore dimensioned to operatively receive the control shaft;a shaft portion extending longitudinally from the closed end of said connecting portion, said shaft portion having two parallel flat sides merging transversely with two opposite arcuate sides and dimensioned to be received by the aperture of the handle;locking means for securing the control shaft inside said bore; andsecuring means for cooperating with the means for securing the handle to the control shaft to fix the distance of the handle from the duct and provide fixed attachment of the handle to said shaft portion.