| ReturnTo Theme-Group-Choice | Onelevelup |
| 3J045 | Diaphragms and bellows | |
| F16J3/00 -3/06 | ||
| F16J3/00-3/06 | AA | AA00 PURPOSE |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Improved mechanical strength | . . Improved pressure resistance | . . Improved reinforcement | . . Improved durability and fatigue resistance | . . Improved abrasion resistance | . Improved responsiveness and bendability | . Prevention of agglutination and autogenous healing | . Oil repellency and corrosion resistance | . Accommodation of heat, and heat resistance | . Improved sealing characteristics | |||
| AA11 | AA12 | AA13 | AA14 | AA20 | ||||||||
| . Improved intake and exhaust of gases and breathing | . Prevention of explosions, and measures for abnormalities | . Detection and measurement | . Ease of manufacture and assembly | . Others | ||||||||
| BA | BA00 MATERIALS |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA10 | ||||
| . Fabrics and fibers | . Rubber and synthetic rubber | . Plastics | . Metals | . Ceramics and glass | . Foamed materials and sponges | . Others | ||||||
| CA | CA00 SHAPES AND STRUCTURES OF DIAPHRAGMS |
CA01 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA10 | |||
| . Diaphragms with a non-circular shape as viewed from above | . Characteristic convoluted membranes | . . Membranes with convolutions | . . Membranes with ribs and grooves on the surface | . . Multilayer membranes | . . . Integrated lamination | . . Membranes with coated and treated surfaces | . Characteristic attachment units | |||||
| CA11 | CA12 | CA13 | CA15 | CA17 | CA20 | |||||||
| . . Use of sealing elements | . . Adhesion by welding and bonding | . . Use of recesses and projections on the sealing surfaces | . Characteristic borders between operational membranes and attachment units | . Diaphragms with through-holes and valves | . Others | |||||||
| CB | CB00 SHAPES AND STRUCTURES OF BELLOWS |
CB01 | CB03 | CB04 | CB05 | CB06 | CB07 | CB08 | CB09 | CB10 | ||
| . Bellows with non-circular cross sections | . Bellows with characteristic wave-shaped units | . . Characteristic wave shapes and ribs | . . . Spiral wave shapes | . . Axial variation of the diameters of peaks and valleys | . . Axial variation of thickness | . . Characteristic tops of peaks and valleys | . . . Welded and bonded tops | . . Spacers, reinforcement rings, or filaments | ||||
| CB11 | CB12 | CB14 | CB15 | CB16 | CB17 | CB18 | CB19 | |||||
| . . Laminated bodies | . . Surface coatings and treatments | . Characteristic attachment units | . . Attachment by insertion into and engagement with grooves only | . . Fastening with bands | . . Use of projecting lines on sealing surfaces | . . Use of sealing elements | . . Use of welding and bonding means | |||||
| CB21 | CB23 | CB25 | CB30 | |||||||||
| . Connection of multiple bellows | . Bellows with projecting covers and buffers | . Bellows with through-holes and valves | . Others | |||||||||
| DA | DA00 MANUFACTURING METHODS |
DA01 | DA02 | DA03 | DA05 | DA10 | ||||||
| . Formation of waved or convoluted units | . . Bulge-molding and blowmolding (i.e., use of hydraulic pressure) | . . Bending processes | . Welding and bonding | . Others | ||||||||
| EA | EA00 FUNCTIONS AND USES |
EA01 | EA02 | EA03 | EA04 | EA10 | ||||||
| . Convoluted diaphragms (i.e., reverse) | . Bellows pistons | . Use for conductive or ball joints | . Use for shift or operating levers | . Others |