Rotary Surface (or Surfaces) Patents (Class 241/220)
- With material feed and/or discharge mechanism or control (Class 241/222)
- With material retaining means at axial end of rotary surface (Class 241/226)
- Both cooperating surfaces rotate (e.g., roll mills) (Class 241/227)
- With non-rotary surface moving means (Class 241/237)
- With plural alternatively usable nonrotary surfaces and/or retractable rotor projections and/or adjustably or yieldably mounted rotary surface (Class 241/238)
- Nonrotary surface adjustable or yieldable relative to rotary surface (Class 241/239)
- Cooperating non-smooth surface characteristics (Class 241/242)
- With feed and/or discharge mechanism or control (Class 241/245)
- With moving cooperating surface (Class 241/250)
- With rotary surface axis noncoaxial or eccentric relative to nonrotary surface axis (Class 241/254)
- Vertical axis (Class 241/257.1)
- With means vary space between surfaces (Class 241/259.1)
- Cooperating non-smooth surface characteristics (Class 241/260)