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F-Term-List

F16K3/00-3/36 AA AA00
PURPOSE AND EFFECTS 		AA01 AA02 AA03
. Improvements relating to valve function . . Improvement of sealing during valve closing . . Addition of special functions
AA11 AA12 AA13 AA14
. Improvements relating to fluid flow . . Prevention of cavitation . . Rectification . . Prevention of water-hammering
AA21 AA22 AA23 AA24 AA25 AA26
. Improvements relating to valve structure . . Improvement of resistance to abrasion . . Improvement of resistance to corrosion . . Improvement of resistance to heat . . Size reduction, weight reduction, and simplification of structure . . Simplification of manufacturing and assembly
AA31 AA32 AA33 AA34 AA35
. Measures to protect against foreign matter . Safety improvements . Prevention of noise . Prevention of freezing . Others
BA BA00
SHAPES AND STRUCTURE OF SLIDING VALVES 		BA01 BA02 BA03 BA04 BA05
. Valve shapes . . Valves with small holes . . . Valves with multiple small holes . . Valves with notches and grooves . . Valves with slits
BA11 BA12 BA13 BA15 BA16 BA17 BA18 BA19
. Valve structure . . Multiple valves . . Extension valves . . Valve materials . . . Ceramics . . . Macromolecular materials and synthetic resins . . . . Rubber . . . Metals
BA22 BA23 BA24 BA25 BA26
. . Valves with special sealing members . . . Sealing rings as sealing members . . . . O-rings as sealing members . . . . Fluid-pressure seals . . . Sealing members with projections
BA32 BA33 BA34 BA35 BA38 BA39
. . . Materials of sealing members . . . . Macromolecular materials and synthetic resins . . . . . Rubber . . . . Metals . . Valves with surface treatments . . Valves with linings
BB BB00
SHAPES AND STRUCTURE OF THE SLIDING-VALVE SEAT 		BB01 BB02 BB03 BB04
. Shapes of valve seats . . Valve seats with multiple holes . . Valve seats with notches and grooves . . Valve seats with slits
BB11 BB12 BB13 BB14 BB16 BB17 BB18 BB19 BB20
. Structure of valve seats . . Movable valve seats . . . Valve seats using external fluid pressure . . . Valve seats using elastic bodies . . Materials of valve seats . . . Ceramics . . . Macromolecular materials and synthetic resins . . . . Rubber . . . Metals
BB22 BB23 BB24 BB25
. . Valve seats with special sealing members . . . Sealing rings as sealing members . . . . O-rings as sealing members . . . . Fluid pressure sealing
BB32 BB33 BB34 BB35 BB38 BB39
. . . Materials of sealing members . . . . Macromolecular materials and synthetic resins . . . . . Rubber . . . . Metals . . Valve seats with surface treatments . . Valve seats with linings
BC BC00
SHAPES AND STRUCTURE OF SLIDING-VALVE HOUSINGS 		BC01 BC02 BC03 BC05 BC06 BC07 BC08 BC09
. Formation of accessory mechanisms on housings . . Rectification mechanisms . . Guide units . Housing materials . . Ceramics . . Macromolecular materials and synthetic resins . . . Rubber . . Metals
BC11 BC12 BC14
. Housings with surface treatments . Housings with linings . Others
BD BD00
DETAILS OTHER THAN THOSE MENTIONED ABOVE 		BD01 BD02 BD03 BD05 BD06 BD07 BD08 BD09 BD10
. Sliding valves with characteristic valve rods (i.e., valve shafts) . Sliding valves with characteristic mounting of the valve rods to the valve bodies . Sliding valves with characteristic valve-rod bearings and guides . Mechanisms for the elimination of foreign matter . . Valves with scrapers . . Valves with cleaning means . . Valves with strainers (i.e., filters) . . Valves with traps for foreign matter . Others
CA CA00
SPECIAL MECHANISMS 		CA01 CA02 CA03 CA04 CA05 CA06
. Valves with adjustable flow rates . . Slight adjustments to flow rates . . Changes to flow-rate parameters . . Proportional flow rates . . Adjustment to flow rates in stages . Others
DA DA00
USES OF SLIDING VALVES 		DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10
. Gas . Water . High-temperature fluids . Low-temperature fluids . Steam . Powders . Slurries . Corrosive fluids . Vacuum devices . Nuclear-energy devices
DA11 DA12
. Hydraulic-pressure and pneumatic-pressure devices . Others
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