Method of manufacturing abrasive cutting string

a manufacturing method and cutting string technology, applied in the field of manufacturing abrasive cutting string, can solve the problems of viscous periphery of the string in which abrasive particles are embedded, and achieve the effects of improving the cutting string, enhancing the cutting efficacy of the cutting string, and simple and inexpensive methods

a manufacturing method and cutting string technology, applied in the field of manufacturing abrasive cutting string, can solve the problems of viscous periphery of the string in which abrasive particles are embedded, and achieve the effects of improving the cutting string, enhancing the cutting efficacy of the cutting string, and simple and inexpensive methods

US20080141593A1Inactive Publication Date: 2008-06-19HOLT DAVID S
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  • Method of manufacturing abrasive cutting string
  • Method of manufacturing abrasive cutting string
  • Method of manufacturing abrasive cutting string

Examples

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Embodiment Construction

[0018]Referring now to the drawings, a cutting string 10 and a preferred method for making the cutting string of the invention are illustrated by FIGS. 1 through 2. As shown in FIG. 1A, a preferred cutting string is designated generally by reference numeral 10. The cutting string 10 is composed of a plastomeric material 11 such as Nylon 6 or Nylon 66 that is extruded to have a substantially circular cross-sectional shape. It is contemplated within the scope of the invention, however, that cutting string 10 may be composed of any suitable material that may be formed into a string-like configuration. Further, it is contemplated within the scope of the invention that cutting string 10 may be formed to have any suitable cross-sectional shape such as oval, crescent, semi-circular, triangular, square, rectangular, pentagonal, hexagonal, octagonal or any other polygonal shape. It is further contemplated within the scope of the invention that cutting string 10 may be produced by a process o...

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Abstract

A method of producing an abrasive cutting string provides for coating a plastomeric string with a solution of a solvent and the plastomeric material of the string, applying an abrasive and removing the solvent to thereby provide a cutting string with excellent abrasive bind and string coverage, that can be manufactured at high speeds.

Description

FIELD OF THE INVENTION[0001]This invention relates generally to an improved method of manufacturing abrasive cutting string commonly used as cutting string for cutting grass, weeds, brush and the like in combination with a rotary string trimmer.BACKGROUND OF THE INVENTION[0002]It is known to use extruded thermoplastic string such as of Nylon to cut grass, weeds, brush and the like in combination with a rotary string trimmer. Conventional thermoplastic strings, however, suffer from several disadvantages. For example, conventional strings have a substantially smooth exterior surface. More particularly, the exterior surface of conventional strings is devoid of any abrasive or aggregate materials which produce cutting surfaces. Instead, conventional strings rely on the rotational velocity and impacting force of the string to cut weeds, grass, brush and the like. This, however, is an inefficient way to cut grass, weeds and particularly vegetation that cannot be felled with impacting forc...

Claims

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Application Information

Patent Timeline
19 Jun 2008
Publication
US20080141593A1
IPC
B24D18/00
CPC
B24D11/001; A01D34/4168
Inventors
BHATIA, RAJEEV