Back to results
US 6,129,620 AGranted
Honing tool and method of making
AssigneeJason, Inc.
InventorsRueben Brown Warner, Joseph P. Gaser
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeJason, Inc.
InventorsRueben Brown Warner, Joseph P. Gaser
Estimating the term…
Honing tools and methods of making such tools utilize a compact bundle of abrasive containing plastic monofilaments projection a relatively short distance from a holder with the compacted tips forming the working face of the tool. The bundle may be secured to the holder by a thin layer of adhesive or by a clinched or swaged girdling lip or rim on the holder which embraces the bundle. In addition, the bundle is further infused with an elastomer, preferably foamed. The bundle is enclosed in a mold which may be part of the clinching process and an elastomer is injected into the mold to infuse and encapsulate the bundle. The encapsulation fills the interstices of the bundle and form an integument around the bundle in effect making the tip action tool into a solid yet elastic block. This enables the abrasive monofilaments to have a higher abrasive loading since they are additionally supported by the matrix, and the tool to be applied at higher pressures. The matrix may be injected through the working face, the bottom of the holder or through mechanical anchor holes in the sides of the holder.
An abrasive honing tool comprising a bundle of packed filaments, a holder, said filaments as a bundle projecting a short distance beyond said holder with the tips of the packed bundle forming the working face of the tool, each filament comprising an extruded plastic material containing abrasive uniformly dispersed throughout the plastic material, the abrasive loading content of each filament being greater than the loading which adversely affects the flexibility and strength of the filament for its intended honing purpose, and a supporting matrix substantially completely filling the interstices of the bundle beyond the holder providing the projecting abrasive loaded filaments with external support to achieve the stiffness and strength for effective honing.
A honing tool comprising a holder, a compact bundle of abrasive containing monofilaments projecting a short distance from the holder with the tips of the monofilaments forming the working face of the tool, the interstices between said monofilaments being substantially completely filled with a foamed elastomer providing increased lateral stability to the projecting portion of the monofilaments of the bundle and maintaining the abrasive tips in relation to each other as the abrasive working face of the honing tool.
Dependencies are inferred from the claim text.