Apparatus for leveling and smoothing a surface
OwnerThomas L. Rothinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for leveling and smoothing a surface that permits blades to be easily installed and removed from their corresponding trowel arms. The blades are formed such that attachment of a blade to the trowel arm is achieved by simply attaching the blade using one or more threaded bolts. Further, the blades of the subject invention are formed without the need of riveting or welding operations thereby significantly decreasing the manufacturing time and expense of the blades.
Claims17
An apparatus for leveling and smoothing a surface comprising a frame having a handle and a motor thereon, the motor including an output shaft having at least one radially extending trowel arms mounted thereon;
- mounted to each said trowel arm is a blade having a planar portion, an inner edge portion, and a trailing edge;
- wherein said blade is mounted to a corresponding trowel arm such that said inner edge portion of said blade is directed upwardly from said planar portion such that it is substantially perpendicular to said planar portion and is directly attached to the trowel arm.
A blade for use with an apparatus for leveling and smoothing a surface having at least one trowel arm, said blade comprising:
- a planar portion;
- an inner edge portion;
- a trailing edge;
- wherein the entire inner edge portion extends upwardly from said planar portion and includes means for stiffening and supporting said inner edge portion and said inner edge portion further having apertures for cooperating with threaded holes in a trowel arm for receiving a bolt for attaching said blade to the trowel arm.
A method of attaching a blade to holes in a trowel arm of an apparatus for leveling and smoothing a surface comprising the steps of:
- selecting a blade having a trailing edge, a planar portion and an inner edge portion extending upwardly from the planar portion with spaced apart apertures therein such that the apertures extend in a direction substantially parallel to the planar portion;
- mounting the blade to the trowel arm by placing the inner edge portion of the blade in position along the trowel arm such that the spaced apart apertures formed along the inner edge portion are aligned with the holes in the trowel arm;
- and
- inserting bolts such that they extend from the inner edge portion through the apertures therein and into the holes of the trowel arm to securely mount the blade to the trowel arm.
Dependencies are inferred from the claim text.