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US 5,405,286 AGranted
Flexible sanding/deburring head
AssigneeDynabrade, Inc.
InventorWalter N. Welsch
Life of this patent
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AssigneeDynabrade, Inc.
InventorWalter N. Welsch
Estimating the term…
A flexible sanding/deburring head adapted for driven rotation by a power tool is formed from a plurality of juxtaposed thin sheets of flexible abrasive material individually die cut to define a connecting portion having a mounting opening disposed centrally thereof and at least three projections connected to the connecting portion to extend generally radially of the mounting opening, wherein the projections are uniformly spaced annularly of the mounting opening and bound uniformly sized cut-out areas opening radially of the mounting opening and each projection is divided into parallel fingers having relatively inner ends connected to the connecting portion and relatively outer ends arranged to lie generally along arcs of a circle whose center is coincident with the center of the mounting opening. The projections are skip-cut to define the fingers.
A flexible sanding/deburring head removably attachable to a power source for rotation about an axis, said head including a plurality of juxtaposed sheets of flexible abrasive material, each of said sheets being cut to define a connecting portion having a mounting opening disposed centrally thereof and at least three projections connected to said connecting portion to extend generally radially of said mounting opening, said projections being spaced annularly of said mounting opening and bounding essentially uniformly sized cut out areas, each of said projections including a plurality of generally parallel fingers having radially inner and outer ends, said inner ends are connected to said connecting portion, said projections of one of said sheets are aligned with said areas of a next adjacent one of said sheets, and said fingers of said projections are interconnected to each other between said inner and outer ends thereof by skip-cutting said projections.
A flexible sanding/deburring head removably attachable to a power source for rotation about an axis, said head including a plurality of juxtaposed sheets of flexible abrasive material, each of said sheets being cut to define a connecting portion having a mounting opening disposed centrally thereof and at least three projections connected to said connecting portion to extend generally radially of said mounting opening, said projections being spaced annularly of said mounting opening and bounding essentially uniformly sized cut-out areas opening radially outwardly of said mounting opening, each of said projections including a plurality of generally parallel fingers having radially inner and outer ends, said inner ends are connected to said connecting portion, said projections of one of said sheets are aligned with said areas of a next adjacent one of said sheets, and said sheets are fixed together by at least one washer overlying said connecting portion of one of said sheets and staples extending through said washer and said sheets, and said washer has a mounting opening aligned with the mounting openings of said sheets.
A flexible sanding/deburring head removably attachable to a power source for rotation about an axis, said head including a plurality of juxtaposed sheets of flexible abrasive material, each of said sheets being cut to define a connecting portion having a mounting opening disposed centrally thereof and at least three projections connected to said connecting portion to extend generally radially of said mounting opening, said projections being uniformly spaced annularly of said mounting opening, each of said projections including a plurality of generally parallel fingers having radially inner and outer ends, said inner ends are connected to said connecting portion and said fingers of said projections are interconnected to each other between said inner and outer ends by skip-cutting said projections.
A sheet of flexible abrasive material intended to be disposed in juxtaposition with at least one like sheet for use in forming a flexible sanding/deburring head intended to be removably attachable to a power source for rotation about an axis, said sheet being cut to define a connecting portion having a mounting opening disposed centrally thereof and at least three projections connected to said connecting portion to extend generally radially of said mounting opening, said projections being spaced annularly of said mounting opening, each of said projections including a plurality of generally parallel fingers having radially inner and outer ends, said inner ends are connected to said connecting portion and said fingers of said projections are interconnected to each other between said inner and outer ends by skip-cutting said projections.
Dependencies are inferred from the claim text.