Patent ID: 7465121
Filing Date: 2008-12-16
Classification: E04F

Abstract:
1. A hand trowel for vibrating concrete, said trowel comprising: a blade having a top surface and a generally flat bottom surface; a generally arcuate handle mounted onto said top surface of said blade and formed so that the highest point of the arch is positioned above the center of said blade, said handle being connected to said blade at each end, said handle having a hollow internal chamber; means for creating vibration in said handle, said vibration being transferred from said handle to said blade and then to any concrete surface that comes into contact with said bottom surface of said blade, said means for creating vibration comprising electrical components including a motor disposed within said hollow internal chamber of said handle, said motor having an actuator contained within a casing, a battery disposed within said chamber, an on-off switch mounted on said handle, a charger mounted on said handle, wiring connecting said motor to said switch, wiring connecting said battery to said motor and to said charger through a three-way connector, and wiring connecting said battery to said switch and to said charger through another three-way connector, said means for creating vibration in said handle being positioned in spaced relationship to said blade.