Patent ID: 7270303
Filing Date: 2007-09-18
Classification: B64G

Abstract:
1. A pincer apparatus for grasping a pliable material covering a hard surface, comprising: an inner disk having inner disk legs extending therefrom; an outer disk having outer disk legs extending therefrom; each of the inner disk legs having a complimentary outer disk leg; the inner disk having an inner disk center and the outer disk having an outer disk center; the inner disk center and the outer disk center lying on an axis; the inner disk legs being for contacting the material; means for rotating the outer disk about the axis and relative to the inner disk until protuberances in the material, formed adjacent to where the inner disk legs contact the material, are squeezed, respectively, between each of the outer disk legs and its complimentary inner disk leg; a shaft lying coaxially with the axis; the shaft being connected to the inner disk and having a shaft top; and a cam and the shaft top being mechanically engaged and respectively shaped to generate a shaft force against the inner disk when the cam is rotated whereby the shaft force is generated and applied against the material by the inner disk legs when the cam is rotated.