Air blowing machine
OwnerClifford E. Andersoninventor
Life of this patent
Estimating the term…
Abstract
A motor driven machine, such as a machine capable of holding and imparting movement to a tool, for example, which may be an eraser strip that is brought to bear upon a surface, such as a paper surface, for erasure of undesirable markings therefrom. The machine includes an internal air supply mechanism having the capability of directing a flow of compressed air against the work surface in the area of contact between the tool and the surface for the purpose of cooling the surface and the tool as well as blowing particles from the immediate area of engagement between the tool and the surface. The machine may include a holding device for supporting the machine in proper position to be grasped when the machine is not in use.
Claims18
A motor driven erasing machine having a housing, a chuck tube being disposed within said housing and being rotatably driven by an electrically energized motor, said chuck tube having a chuck mechanism at the lower extremity thereof for supporting a strip of erasing material, the improvement comprising:
- means defining air passage means within said chuck tube and extending lengthwise of said eraser strip and directing air flowing therethrough against the surface being erased in the immediate vicinity of the area of contact between the eraser strip and the surface being erased;
- air supply means completely enclosed within said housing and developing a flow of air simultaneously with energization of said electric motor;
- and
- means communicating said flow of air with said air passage means.
A motor driven machine for simultaneously doing work on a work surface and blowing loose particles from said surface and cooling the contact area between a tool carried by the machine and the work surface, said machine comprising:
- housing means defining a tool section and a pump section
- chuck tube means being disposed for rotation within said tool section and having chuck means disposed at one extremity thereof for supporting a tool, said tool extending at least partially through said chuck means and into said chuck tube means;
- electric motor means being disposed within said tool section of said housing and being connected to said chuck tube, said motor means imparting rotation to said chuck tube, said chuck and said tool upon being energized;
- means defining an air passage extending lengthwise of said chuck tube means and said tool;
- pump means disposed within said pump section of said housing and developing a flow of air;
- and
- means communicating said pump means with said air passage means and directing the flow of air from said pump means to said air passage means.
Dependencies are inferred from the claim text.