Internal-resistance Motion Retarder Patents (Class 188/266)
- Having a fluid flow passage adjusted manually (e.g., threaded plug, threaded rod, gearing) (Class 188/285)
- Having aperture in chamber wall (Class 188/286)
- Having varying area of chamber passageway for thrust member (Class 188/288)
- Having varying area of metering rod extending through orifice in thrust member (Class 188/289)
- Forming flexible wall enclosure for fluid (Class 188/298)
- Causing air suction in chamber (Class 188/301)
- Rectilinear reciprocation of piston caused by arcuately oscillating frame, shaft, arm, axle, etc. (Class 188/302)
- Arcuately oscillating thrust member (Class 188/306)
- Having piston rod extending through ends of chamber (Class 188/312)
- With valve controlling fluid flow between chambers or compartments of the chamber (Class 188/313)
- Fluid through or around piston within chamber (Class 188/316)