| 474 / | HD | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
|
| 237 |  | FRICTION DRIVE BELT {14} |
| 238 | DF | .~> Including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "V-belts", etc.) |
| 239 | DF | .~> Having drive surface on helically coiled wire or cord |
| 240 | DF | .~> Including plural interconnected members each having a drive surface facing in a common direction {3} |
| 248 | DF | .~> Including link-chain coextensive with continuous surface belt |
| 249 | DF | .~> Including groove, openings or pockets formed in belt surface and arranged along entire length of belt (e.g., for flexibility, air escape, etc.) {2} |
| 253 | DF | .~> Including particular means connecting opposite ends to form loop {2} |
| 259 | DF | .~> Drive surface on single sheet or web wound in plural, completely overlying convolutions |
| 260 | DF | .~> Including embedded elongated strand having multiple components or layers of diverse materials |
| 261 | DF | .~> Including plural superposed layers each having strands particularly oriented relative to belt dimension {1} |
| 263 | DF | .~> Including discrete embedded fibers |
| 264 | DF | .~> Including plural layers of different elastomeric materials |
| 265 | DF | .~> Having trapezoidal cross section (e.g., "V-belt", etc.) |
| 266 | DF | .~> Including fabric web (e.g., knit, woven, etc.) {2} |
| 272 | DF | .~> Including metallic drive face |