Machine for preparing floors for refinishing
OwnerFred Wadeinventor
Life of this patent
Estimating the term…
Abstract
A floor preparation machine that uses a number of vertical needles positioned in a tight rectangular pattern. The needles vibrate against the floor surface to prepare the floor surface. The needles are driven by a cam and cam follower. As the cam is turned by a motor, a number of ribs repeatedly contact the cam follower, which in turn repeatedly pushes the needles down. Under the top plate that supports the needles, is a rubber form that acts as a “spring” to force the needles up after they have been pushed down by the cam follower. In practice, the system produces a sustained vibration of the needles that breaks the surface to a depth of 1/16 to ⅛ of an inch.
Claims18
A machine for preparing floors for refinishing comprising:
- a) a frame;
- b) a plurality of wheels, attached to said frame;
- c) a top plate;
- d) a plurality of needles fixedly attached to said top plate, having a top and a bottom, and extending downward therefrom;
- e) a housing for holding said plurality of needles such that said top plate is supported from below;
- f) a means for periodically compressing said top plate in a downward motion for a limited period of time, thereby producing a number of compression periods and a number of non-compression periods;
- and
- g) a means for moving said top plate upward during said number of non-compression periods, said means for moving being attached to the bottom of said top plate.
A machine for preparing floors for refinishing comprising:
- a) a frame;
- b) a plurality of wheels, attached to said frame;
- c) a plurality of needle sets each needle set having:
- i) a top plate;
- ii) a bottom plate;
- iii) a resilient member attached to the bottom of said top plate;
- and
- iv) a plurality of needles extending downward from said bottom plate;
- f) a housing for holding said plurality of needle sets such that said top plate of each of the needle sets and resilient members, and bottom plates are supported from below;
- g) a means for periodically compressing each of the top plates of each of said needle sets in a downward motion for a limited period of time;
- and
- h) a means for controlling the means for periodically compressing the top plate of each of said needle sets in a downward motion for a limited period of time.
Dependencies are inferred from the claim text.