Description
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
F16J
Technology
Stats
- 8,550 US PATENTS IN FORCE
- 2,554 US APPLICATIONS PENDING
- 4,553 Total Patent Owners
- 27,358 TOTAL INVENTORS
Subclasses
| Subclass | Title |
|---|---|
| 1/00 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) |
| 1/01 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) characterised by the use of particular materials (F16J 1/02 takes precedence) |
| 1/02 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Bearing surfaces |
| 1/04 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Resilient guiding parts, e.g. skirts, particularly for trunk pistons |
| 1/06 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Resilient guiding parts, e.g. skirts, particularly for trunk pistons with separate expansion members; Espansion members |
| 1/08 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Constructional features providing for lubrication |
| 1/09 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) with means for guiding fluids (F16J 1/08 takes precedence) |
| 1/10 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members |
| 1/12 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with piston-rods, i.e. rigid connections |
| 1/14 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with connecting-rods, i.e. pivotal connections |
| 1/16 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins |
| 1/18 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins Securing of gudgeon-pins |
| 1/20 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with connecting-rods, i.e. pivotal connections with rolling contact, other than in ball or roller bearings |
| 1/22 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members with connecting-rods, i.e. pivotal connections with universal joint, e.g. ball-joint |
| 1/24 | Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Connection to driving members designed to give the piston some rotary movement about its axis |
| 3/00 | Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers H04R 7/00) |
| 3/02 | Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers H04R 7/00) Diaphragms |
| 3/04 | Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers H04R 7/00) Bellows |
| 3/06 | Diaphragms; Bellows; Bellows pistons (connection of valves to inflatable elastic bodies B60C 29/00; bellows or the like used in instruments G12B 1/04; diaphragms for electromechanical transducers H04R 7/00) Bellows pistons |
| 7/00 | Piston-rods, i.e. rods rigidly connected to the piston (connecting-rods or like links pivoted at both ends F16C 7/00) |
Recent Patents
Not Available
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0116,331 | Piston Ring | Nov 16, 22 | Apr 10, 25 | Not available |
| 2025/0116,333 | RAIL FASTENER SEALING SYSTEMS AND METHODS FOR SEALING A RAIL FASTENING ASSEMBLY | Oct 04, 24 | Apr 10, 25 | Jamak Fabrication-Tex LLC |
| 2025/0116,335 | Arrangement, Sealing and Method for Limiting the Intrusion of Particles into a Gap | Jun 28, 22 | Apr 10, 25 | Not available |
| 2025/0116,337 | Internally clamping rectangular seal | Dec 13, 24 | Apr 10, 25 | Not available |
| 2025/0116,326 | SLIDING SURFACE SEALING STRUCTURE, GEAR BOX, AND MOTOR UNIT | Aug 25, 23 | Apr 10, 25 | Not available |
| 2025/0116,332 | SEALING RING | Mar 28, 24 | Apr 10, 25 | Not available |
| 2025/0116,334 | SEAL RING | Jan 30, 23 | Apr 10, 25 | Not available |
| 2025/0116,336 | Seal Unit, Joint, Industrial Device and Method | Feb 14, 22 | Apr 10, 25 | Not available |
| 2025/0112,003 | Integral Interface Seal | Sep 28, 23 | Apr 03, 25 | ABB Schweiz AG |
| 2025/0109,711 | Carbon Radial Seal | Feb 07, 24 | Apr 03, 25 | RTX CORPORATION |
| 2025/0109,722 | Piston Unit, Top Land Member, and Combination of Piston Unit Parts | Feb 07, 23 | Apr 03, 25 | Not available |
| 2025/0109,794 | GAS SEALING STRUCTURE FOR INTERNAL COMBUSTION ENGINE | Jan 17, 23 | Apr 03, 25 | MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD. |
| 2025/0109,796 | HARD SEALING RING HAVING AN ANTI-FRICTION SURFACE, ANTI-FRICTION SEALING DEVICE, AND PRODUCTION METHOD | Feb 28, 23 | Apr 03, 25 | Not available |
| 2025/0109,793 | SEAL CONNECTION BODY AND GASKET | Feb 24, 23 | Apr 03, 25 | Not available |
| 2025/0109,795 | MULTILAYER GASKET AND METHODS OF FORMING THE SAME | Sep 26, 24 | Apr 03, 25 | Not available |
| 2025/0109,797 | System having a gas seal and method for operating the system | Dec 21, 22 | Apr 03, 25 | Not available |
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Applications Filed in This Class - By Year
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 35 Months (last 2 years Issuances)
- 35 Months (last 5 years Issuances)