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Class Information
Number: 242/118.31
Name: Winding, tensioning, or guiding > Bobbin or spool > Cop-tube type (i.e., headless or single-headed tube) > Reinforcing feature
Description: Winding cores including means to strengthen the tube structurally.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6394386 |
Paper reel for yarn packages |
May. 28, 2002 |
| 6302343 |
Textile tube |
Oct. 16, 2001 |
| 6199676 |
Inflatable tubular structure with spiral seam |
Mar. 13, 2001 |
| 5967455 |
Single-step molded reel |
Oct. 19, 1999 |
| 5820049 |
Rigid plastic dye tube |
Oct. 13, 1998 |
| 5513820 |
Core plug apparatus |
May. 7, 1996 |
| 5505395 |
Multi-grade paperboard winding cores for yarns and films having enhanced resistance to inside diameter reduction |
Apr. 9, 1996 |
| 5501406 |
Plastic bobbin carrier |
Mar. 26, 1996 |
| 5178342 |
Dyeing cone |
Jan. 12, 1993 |
| 4901940 |
Plastic yarn cone having reinforced nose for damage protection |
Feb. 20, 1990 |
| 4874139 |
Tubular core assemblies for rolls of paper or other sheet material |
Oct. 17, 1989 |
| RE33060 |
High speed carrier with deckled underply |
Sep. 19, 1989 |
| 4742972 |
Carrier for textile yarn |
May. 10, 1988 |
| 4519557 |
Plastic bobbin |
May. 28, 1985 |
| 4462556 |
Tube with reinforcing strip |
Jul. 31, 1984 |
| 4245799 |
Textile bobbin |
Jan. 20, 1981 |
| 3980249 |
High speed carrier with deckled underply |
Sep. 14, 1976 |
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