Back to results
US 4,371,580 AGranted
Three-ply belting material
AssigneeMorrison Company, Inc.
InventorsDonald Morrison, William T. Muma, Jr.
Life of this patent
Estimating the term…
Abstract
Three-ply belting having improved dimensional stability, flexing characteristics, and elongation characteristics is disclosed. The center ply of the belt comprises a first synthetic fabric, while each outer ply comprises a second synthetic fabric. The modulus and flex fatique life of the second synthetic fabric are respectively greater than the modulus and flex fatique life of the first synthetic fabric. Belting in accordance with the present invention is useful in agricultural applications.
Claims13
Three-ply belting material, comprising:
- a center ply comprising a first synthetic fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a second synthetic fabric, the second synthetic fabric having a flex fatique life and a modulus which are respectively greater than the flex fatique life and modulus of the first synthetic fabric;
- a first rubber skim, which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and second rubber covers which are bonded to the first and second outer plies, respectively.
3 more elements
Three-ply belting material, comprising:
- a center ply comprising a polyester fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a polyamide fabric;
- a first rubber skim which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and econd rubber covers which are bonded to the first and second outer plies, respectively.
3 more elements
Three-ply belting material, comprising:
- a center ply comprising a polyester fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a fabric which is woven with polyamide yarns in one direction and polyester yarns in the other direction;
- a first rubber skim which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and second rubber covers which are bonded to the first and second outer plies, respectively.
3 more elements
In a hay baler, three-ply belting material comprising:
- a center ply comprising a first synthetic fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a second synthetic fabric, the second synthetic fabric having a flex fatique life and a modulus which are respectively greater than the flex fatique life and modulus of the first synthetic fabric;
- a first rubber skim, which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and second rubbers covers which are bonded to the first and second outer plies, respectively.
3 more elements
In a hay baler, three-ply belting material comprising:
- a center ply comprising a polyester fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a polyamide fabric;
- a first rubber skim which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and second rubber covers which are bonded to the first and second outer plies, respectively.
3 more elements
In a hay baler, three-ply belting material comprising:
- a center ply comprising a polyester fabric;
- first and second outer plies which are disposed in spaced relationship to the center ply on opposite sides of the center ply, each outer ply comprising a fabric which is woven with polyamide yarns in one direction and polyester yarns in the other direction;
- a first rubber skim which is interposed between the center ply and the first outer ply and which is bonded to the center ply and the first outer ply;
- a second rubber skim which is interposed between the center ply and the second outer ply and which is bonded to the center ply and the second outer ply, the thicknesses of the first and second rubber skims being substantially the same;
- and
- first and second rubber covers which are bonded to the first and second outer plies, respectively.
3 more elements
Dependencies are inferred from the claim text.