Tool and method for scarifying a surface
AssigneeTennant Company
InventorJohn M. Svendsen
Life of this patent
Estimating the term…
Abstract
A tool (10) and method for scarifying a surface is disclosed. Tool (10) comprises a backing plate (14) having a plurality of equally spaced brackets (16) extending downwardly therefrom. Each bracket (16) supports a pair of axles (18) on which are mounted scarifying elements (20, 20a). Each axle pair thereby defines leading and trailing stacks (32, 34) of cutting elements (20, 20a). The leading stack (32) of elements (20, 20a) scarifies parallel paths of soilage while the trailing stack (34) of elements (20, 20a) scarifies soilage between the indicated parallel paths to thereby clean a width of surface.
Claims27
A tool for connection to a rotary power machine for removing a coating from a surface, said tool comprising:
- first disc-like means for scarifying a plurality of parallel first pathways in the coating on the surface leaving a plurality of ridges intermediate said first pathways;
- second disc-like means for scarifying a plurality of parallel second pathways in the coating on the surface, all of said second pathways being intermediate said first pathways and serving to remove coating intermediate said plurality of first pathways;
- and
- separate support means for supporting said first and second scarifying means with respect to said rotary power machine.
A tool for a rotary power machine for scarifying layers from surfaces, said tool having a center for alignment with an axis of rotation of said machine, said tool comprising:
- means for cutting the layers from a surface, said cutting means including a plurality of pairs of stacks of cutting elements, said pairs including a leading stack and a trailing stack, each of said stacks including cutting elements, all of said trailing cutting elements being misaligned with said leading cutting elements to remove paths of layers between the paths of layers removed by the leading cutting elements;
- and
- means for supporting said cutting means with respect to said rotary power machine.
A tool for removing coatings from a surface, said tool comprising:
- a support member for attachment to a rotary power machine, said support member having a center;
- a plurality of pairs of axles mounted on said support member;
- a plurality of scarifying elements mounted on each axle, all of said scarifying elements on one axle of each said pair removing paths of coatings between the paths of coatings removed by the scarifying elements on the other axle of each said pair, thereby scraping a width of coatings from said surface.
A scarifying tool for attachment to a rotary power machine for removing coatings from floor surfaces, said scarifying tool comprising:
- a backing plate for rotatable attachment to said rotary power machine, said backing plate having a center in common with said tool for alignment with an axis of rotation of said rotary power machine;
- a plurality of brackets attached to said backing plate and equidistantly spaced along an arc centered on said tool;
- a plurality of pairs of axles, each said pair being attached to a particular one of said brackets, each said axle defining an axis, the intersecting axes of said pair of axles forming equal angles with a radial line extending from the center of said backing plate and passing through the intersection of the axes of said axles;
- and
- a plurality of rotatable disc-like cutting elements mounted on each of said axles, each of said cutting elements being disposed to form an angle B with a line extending from the rotational center of said tool, each axle pair forming a leading stack and a trailing stack of said elements, whereby the leading stack of said elements strips a plurality of pathways and the trailing stack of said elements cooperates with said leading stack to strip regions between adjacent said pathways thereby uniformly removing coatings from a floor surface.
An apparatus for scarifying surface material comprising:
- frame means;
- a tool supported by said frame means having spaced scarifying means for cutting parallel first and second groups of pathways in soilage from said surface, substantially all of the pathways in the second group being intermediate the pathways in the first group;
- and
- means for rotatably driving said tool.
A tool for a rotary power machine comprising:
- a disc-like backing plate;
- peripherally spaced scarifying means attached to said backing plate for scarifying first and second groups of pathways along a surface, the pathways of said second group all being offset from the pathways of said first group and intermediate between respective adjacent pairs of them;
- means for brushing said surface, said brushing means being located adjacent to said scarifying means to cooperate therewith;
- and
- means providing a driving relationship between said scarifying and brushing means and said rotary power machine.
A scarifying tool for a rotary power machine comprising:
- a disc-like backing plate;
- circumferentially spaced scarifying means attached to said backing plate for scarifying first and second groups of pathways along a surface, each one of said second group of pathways being offset from a respective surrounding pair of said first group of pathways;
- and
- means for providing a driving relationship with a rotary power machine.
A scarifying tool for attachment to a rotary power machine for removing coatings from floor surfaces, said scarifying tool comprising:
- a backing plate for rotatable attachment to said rotary power machine, said backing plate having a center in common with said tool for alignment with an axis of rotation of said rotary power machine;
- a plurality of brackets attached to said backing plate and equidistantly spaced along an arc centered on said tool;
- a plurality of pairs of axles, each said pair being attached to a particular one of said brackets;
- and
- a plurality of rotatable disc-like cutting elements mounted on each of said axles, each axle pair forming a leading stack and a trailing stack of said elements, whereby the leading stack of said elements strips a plurality of pathways and the trailing stack of said elements cooperates with said leading stack to strip regions between adjacent said pathways thereby uniformly removing coatings from a floor surface.
Dependencies are inferred from the claim text.