| ReturnTo Theme-Group-Choice | Onelevelup |
| 3H055 | Self-closing valves and venting or aerating valves | |
| F16K21/00 -24/06@Z | ||
| F16K21/04-24/06 | AA | AA00 VALVE SHAPES |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA08 | AA09 | AA10 | |
| . Lift valves | . . Linear lift valves | . . . Cylindrical lift valves | . . . Ball lift valves | . . . Plate lift valves | . . Rotating lift valves | . Sliding valves | . . Linear sliding valves | . . Rotating sliding valves | ||||
| AA11 | AA13 | AA14 | AA16 | |||||||||
| . Valves consisting of flexible members | . Valves with flow paths that are normally open | . . Taps and cocks | . Others | |||||||||
| AA21 | AA22 | AA23 | AA24 | |||||||||
| . Number of valve ports | . . Two-way valves (i.e., two ports) | . . Three-way valves (i.e., three ports) | . . Multiple-way valves (i.e., four or more ports) | |||||||||
| BA | BA00 VALVE SHAPES AND STRUCTURE |
BA01 | BA02 | BA03 | BA04 | |||||||
| . Valve shapes | . . Valves with stepped portions and projections | . . Valves with notches, grooves, and slits | . . Valves with holes and flow paths | |||||||||
| BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | |||||
| . Valve structure | . . Multiple valves | . . Valves with magnetism | . . Valves with surface treatments or linings or coatings | . . Materials | . . . Ceramics | . . . Macromolecular materials and synthetic resins | . . . . Rubber | |||||
| BB | BB00 VALVE-SEAT SHAPES AND STRUCTURE |
BB01 | BB02 | BB03 | ||||||||
| . Valve-seat shapes | . . Valve seats with stepped portions or projections | . . Valve seats with notches, grooves, or slits | ||||||||||
| BB11 | BB12 | BB13 | BB14 | BB15 | BB16 | BB17 | BB18 | BB19 | ||||
| . Valve-seat structure | . . Provision of multiple valve seats for single valves | . . Valve seats with magnetism | . . Movable valve seats | . . Valve seats with surface treatments or linings or coatings | . . Materials | . . . Ceramics | . . . Macromolecular materials and synthetic resins | . . . . Rubber | ||||
| BC | BC00 HOUSING SHAPES AND STRUCTURE |
BC01 | BC02 | BC03 | BC05 | BC06 | BC07 | BC08 | BC09 | |||
| . Formation of accessory mechanisms on housings | . . Rectification mechanisms | . . Joints | . Cartridge housings | . Housings with surface treatments or linings or coatings | . Materials | . . Ceramics | . . Macromolecular materials and synthetic resins | |||||
| CC | CC00 USES |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | |||
| . Control fluids | . . Liquids | . . . Water (i.e., including warm water) | . . . Oil | . . Gases | . . . Air | . . . Gases | . . Steam | |||||
| CC11 | CC12 | CC13 | CC14 | CC15 | CC16 | CC17 | CC18 | CC19 | CC20 | |||
| . Applied devices and equipment | . . Sanitary devices and toilet devices | . . . Water faucets | . . . . Water faucets for mixing hot and cold water | . . . Piping systems | . . Compressors and pumps | . . Internal-combustion engines | . . Air conditioners | . . Civil engineering and construction machines | . . Vehicles | |||
| CC21 | CC22 | CC23 | CC24 | CC25 | ||||||||
| . . Containers | . . Nuclear-energy devices | . . Medical uses | . . Combustion apparatuses | . . Fuel supply | ||||||||
| F16K21/04-21/20 | DD | DD00 PURPOSE AND EFFECTS OF IMPROVEMENTS TO SELF-CLOSING VALVES |
DD01 | DD02 | DD03 | DD04 | DD05 | DD06 | DD07 | DD08 | DD09 | |
| . Improvements relating to valve functions | . . Improvement of responsiveness | . . Improvement of sealing during valve closing | . . Improvements relating to valve drive-transmission means | . . Control of high flow rate | . . Capability of smooth valve closing | . . Improvements relating to setting of the supply flow rate and supply time | . . . Ease of setting | . . . Multi-stage setting | ||||
| DD11 | DD12 | DD13 | DD14 | DD15 | DD17 | DD18 | DD19 | DD20 | ||||
| . Improvements relating to fluid flow | . . Prevention of fluid pulsation | . . Prevention of water-hammering | . . Prevention of cavitation | . . Reduction of flow resistance (i.e., rectification) | . Improvements relating to valve opening and closing | . . Improvement of operability | . . Valve control by remote control | . . Prevention of accidental operation | ||||
| DD21 | DD22 | DD23 | DD24 | DD25 | DD26 | DD27 | ||||||
| . Improvements relating to valve structure | . . Size reduction, weight reduction, and simplification of structure | . . Improvement of resistance to corrosion and wear | . . Improvement of resistance to high and low temperatures | . . Improvement of resistance to impacts and prevention of breakage | . . Prevention of leakage to the valve exterior | . . Facilitation of manufacturing, assembly, and installation | ||||||
| DD31 | DD32 | DD33 | DD35 | DD36 | DD37 | DD38 | DD39 | DD40 | ||||
| . Addition of complex functions and special functions | . . Addition of functions relating to temperature | . . Addition of functions relating to pressure | . Prevention of noise | . Safety improvements | . Measures to rotect against foreign matter | . Prevention of valve chattering and valve vibration | . Prevention of valve freezing | . Others | ||||
| EE | EE00 VALVE-DRIVING MEANS FOR SELF-CLOSING VALVES |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | EE08 | ||||
| . Use of the rotary motion from a motor | . Use of the rotary motion from power springs | . Use of the rotary motion from impellers | . Use of electromagnets | . Use of pilot valves | . Use of fluid-pressure brake cylinders | . Others | ||||||
| FF | FF00 OTHER DETAILS OF SELF-CLOSING VALVES |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | ||
| . Valves with cams | . . Cam shapes | . . . Variants wherein the external radial peripheral surface of the rotary body acts as a cam surface | . . . Variants wherein the internal radial peripheral surface of the rotary body acts as a cam surface | . . . Variants whereing the axial end surface of the rotary body acts as a cam surface | . . . Cams with multiple steps or multiple cam grooves | . . Cam structure | . . . Cams consisting of multiple rotary bodies | . . . Cams consisting of rotary bodies and other members | ||||
| FF11 | FF12 | FF13 | FF14 | FF15 | FF16 | FF17 | FF18 | FF19 | ||||
| . Throttle means | . . Adjustable degree of throttle opening | . Shock-absorbing devices | . . Dashpots | . Valve guide means | . Filters and strainers | . Manual valve-operating units | . Means of flow-rate detection | . Others | ||||
| F16K24/00-24/06 | GG | GG00 PURPOSE AND EFFECTS OF IMPROVEMENTS TO INTAKE-EXHAUST VALVES |
GG01 | GG02 | GG03 | GG04 | GG05 | GG06 | GG07 | GG08 | GG09 | |
| . Improvements relating to valve functions | . . Improvement of exhaust characteristics | . . . Capability of rapid exhaust | . . . Capability of high-volume exhaust | . . Improvement of intake suction | . . . Capability of rapid intake | . . . Capability of high-volume intake | . . Improvement of sealing characteristics | . . Capability of separating gases from liquids | ||||
| GG11 | GG12 | GG13 | GG14 | GG15 | GG17 | GG18 | GG19 | GG20 | ||||
| . Improvements related to fluid flow | . . Reduction of flow resistance (i.e., rectification) | . . Addition of flow resistance and reduction of flow speed | . . Prevention of air-hammering | . . Elimination of turbulence | . Improvements relating to valve operation | . . Improvement of operability | . . Remote control | . . Prevention of accidental operation | ||||
| GG21 | GG22 | GG23 | GG24 | GG25 | GG26 | GG27 | ||||||
| . Improvements relating to valve structure | . . Size reduction, weight reduction, and simplification of structure | . . Improvement of resistance to corrosion and wear | . . Improvement of resistance to high and low temperatures | . . Improvement of resistance to impacts and prevention of breakage | . . Prevention of leakage to the valve exterior | . . Simplification of manufacturing, assembly, and installation | ||||||
| GG31 | GG32 | GG33 | GG35 | GG36 | GG37 | GG38 | GG39 | GG40 | ||||
| . Addition of complex functions and special functions | . . Addition of functions relating to temperature | . . Addition of functions relating to pressure | . Prevention of noise | . Improvement of safety | . Measures to protect against foreign matter | . Prevention of valve chattering and vibration | . Prevention of freezing | . Others | ||||
| HH | HH00 SHAPES AND STRUCTURE OF INTAKE AND EXHAUST PATHS |
HH01 | HH02 | HH03 | HH05 | HH06 | HH07 | HH08 | ||||
| . Shapes of intake and exhaust paths | . . Swirl and spiral routes | . . Paths comprised of two or more curved sections | . Structures of intake and exhaust paths | . . Flow paths consisting of the space between the cap and the cap mounting unit | . . Flow routes formed by plates | . . Flow routes consisting of holes in the cap | ||||||
| JJ | JJ00 OTHER DETAILS OF INTAKE AND EXHAUST VALVES |
JJ01 | JJ02 | JJ03 | JJ04 | JJ05 | JJ06 | JJ07 | JJ08 | JJ09 | JJ10 | |
| . Floats | . . Spherical floats | . . Non-spherical floats | . . Flow routes formed inside the float | . . Maintenance of the position of the float | . . . Maintenance of the position by connection to rotary arms | . . . Maintenance of the position by insertion of rod-type members | . . Multiple floats | . . Surface treatments and linings or coatings | . . Materials | |||
| JJ11 | JJ12 | JJ13 | JJ14 | JJ15 | JJ16 | JJ17 | JJ18 | JJ19 | JJ20 | |||
| . Throttle means | . . Adjustable degree of opening of the throttle | . Shock-absorbing means | . . Dashpots | . Valve guide means | . Filters and strainers | . Manual valve-operating units | . . Operation by pressing | . . Operation by rotation | . Others |