US Patent 7740231 Easy knee stair stretcher

An apparatus for installing carpeting, such apparatus comprises a substantially flat member having a plurality of teeth disposed on an underside thereof for biting into carpeting to be stretched. A handle member attached to such flat member on one end and to an elongated transmission means on another end. There is a connecting means that is engageable on one end to the handle and on the other end with the power transmission means for causing said power transmission means to force such apparatus to stretch such carpeting. The apparatus has an attachment means engageable with the transmission means on one end and with carpeting, wood or concrete on a second end for assisting in stretching such carpet when the apparatus is in use.