Machine for preparing floors for refinishing

Details Machine for preparing floors for refinishing Machine for preparing floors for refinishing

2007-05-01

2007-05-01

Wilson, Lee D. (Department: 3723)

Abrading

Frame or mount

Portable abrader

C451S350000, C125S038000, C299S036100

Reexamination Certificate

active

11505133

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.

REFERENCES:
patent: 4097950 (1978-07-01), Satterfield
patent: 5695389 (1997-12-01), Bartel et al.
patent: 5772497 (1998-06-01), Dummermuth
patent: 6739957 (2004-05-01), Peterson et al.
patent: 6752707 (2004-06-01), Palushi

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