Method of treating a hole saw to provide efficient slug removal
OwnerRichard E. Capstran, Mirko Buzduminventors
Life of this patent
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Abstract
A hole saw having efficient slug removal preferably includes a saw cup, a shank portion and a pilot cutting device. A cutting surface is formed on an open end of the saw cup. The inside surface, outside surface and cutting surface of the saw cup are given a low friction treatment. A fluoropolymer resin coating is used for the low friction treatment. The friction treatment is applied by spraying thereof on the saw cup. The saw cup is then heated to a predetermined temperature for a set period of time. The low friction treatment is cured when the saw cup is used. The shank portion is attached to a closed end of the saw cup with any suitable fastening process. The shank portion preferably retains the pilot cutting device.
Claims17
A method of treating a saw cup of a hole saw to provide efficient slug removal, comprising the steps of:
- providing a saw cup having a closed end, an open end, an inside surface and an outside surface;
- and forming a cutting surface on said open end of said saw cup;
- applying at least one coat of fluoropolymer resin to said inside surface, said outside surface and said cutting surface;
- and heating said fluoropolymer resin to a temperature of no greater than about 250 degrees Fahrenheit, further comprising the step of:
- providing said fluoropolymer resin with durability and abrasion resistance that lasts at least as long as the sharpness of said cutting surface or the temper of said cutting surface.
A method of treating a saw cup of a hole saw to provide efficient slug removal, comprising the steps of:
- providing a saw cup having a closed end, an open end, an inside surface and an outside surface;
- and forming a cutting surface on said open end of said saw cup;
- applying at least one coat of fluoropolymer resin to said inside surface, said outside surface and said cutting surface;
- and heating said fluoropolymer resin to a temperature of no greater than about 250 degrees Fahrenheit for period of between 8-12 minutes, further comprising the step of:
- providing said fluoropolymer resin with durability or abrasion resistance that lasts at least as long as the sharpness of said cutting surface or the temper of said cutting surface.
A method of treating a saw cup of a hole saw to provide efficient slug removal, comprising the steps of:
- providing a saw cup having a closed end, an open end, an inside surface and an outside surface;
- and
- forming a cutting surface on said open end of said saw cup;
- applying at least one coat of fluoropolymer resin to said inside surface, said outside surface and said cutting surface;
- and
- heating said fluoropolymer resin to a temperature of no greater than about 250 degrees Fahrenheit;
- and
- curing of said fluoropolymer resin occurring during the use of said saw cup.
Dependencies are inferred from the claim text.