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| Number | Title | Issue Date |
| 4827708 | Wire rope A wire rope is constructed so that the twisting moment generated in the rope per unit load decreases from one end of the rope to the other . This is accomplished by varying the length of lay along the rope.... | 05/09/1989 |
| 4705722 | Gland packing A gland packing having increased compressibility, increased allowable limit of twist, increased tensile strength, and excellent serviceability and versatility characteristics is disclosed which comprises a plurality of flexible graphite sheets cut to a wi... | 11/10/1987 |
| 4624097 | Rope The invention provides a rope having a central strand and a plurality of outer strands extending helically about the central strand. Each of the outer strands consists of a plurality of elements in a helical wrap, at least some of these elements having a ... | 11/25/1986 |
| 4395458 | Graphite impregnated polyamide tennis strings For use in a stringed apparatus, such as a tennis racket, a synthetic string having a cross-sectional diameter between about 0.025 and about 0.08 inch and comprising a plurality of fused, entwined filaments which are composed of a polyamide, such as nylon... | 07/26/1983 |
| 4202164 | Lubricated plastic impregnated aramid fiber rope An aramid fiber rope having a central core surrounded with aramid fiber rope strands. The core and the aramid strands are coated with a heavy viscous lubricant prior to winding the strands into rope. The lubricated rope is then impregnated and surrounded ... | 05/13/1980 |
| 4050230 | Rope The rope of this invention comprises a plurality of strands each having a twisted reinforcing fiber bundle, thermosetting resin applied to the fiber bundle, and a thermoplastic resin cover enclosing the fiber bundle. Each strand in the rope is kept to sub... | 09/27/1977 |
| 4022010 | High-strength rope A high-strength rope, strand or yarn includes a core component, such as a fiber or a plurality thereof, of elastic synthetic plastic material, the core component having a predetermined length. A plurality of envelope components surrounds the core componen... | 05/10/1977 |
