By Float Controlled Valve Patents (Class 137/409)
- With valve retarder or cushion means (Class 137/435)
- With flow guide or restrictor (Class 137/436)
- Movable nozzle or inlet terminal (Class 137/438)
- Valve removable from outside container (Class 137/439)
- With U-shaped inlet pipe having terminal valve (Class 137/440)
- With refill pipe (Class 137/441)
- Assembly mounted on and having reciprocating valve element coaxial with inlet pipe (Class 137/442)
- With toggle or second lever connected to valve (Class 137/445)
- With interposed cam, gear or threaded connection (Class 137/446)
- Rotary valve element (Class 137/447)
- Pivoted valve (Class 137/448)
- Ball valves (Class 137/449)
- Balanced valves (Class 137/450)
- Flexible valve (Class 137/451)