Working Member Has Planetary Or Planetating Movement Patents (Class 418/54)
- Having specific wrap or end plate, e.g., shape, material, coating (Class 418/55.2)
- With specific rotation preventing or rotation coupling means (Class 418/55.3)
- With mechanical sealing (Class 418/55.4)
- With biasing means, e.g., axial or radial (Class 418/55.5)
- With lubricant, liquid seal or nonworking fluid separation (Class 418/55.6)