Matches 1 - 29 out of 29


Match Document Document Title
US20070029737 Replaceable magneto-fluidic seal cartridge and method for increasing the life and reliability of same  
A removable cartridge includes a permanent magnet, a pole piece, a shaft sleeve and a magnetic fluid between the pole piece and the shaft sleeve and forming a magneto-fluidic seal by directing a...
US20100025935 MAGNETIC FLUID SEAL WITH SHUNT ELEMENT  
A magneto-fluidic seal includes a shaft, a pole piece, and a plurality of sealing fluid rings located between the shaft and the pole piece. The sealing fluid rings may be defined by the shaft...
US20090179385 MAGNETIC FLUID SEAL DEVICE  
The present invention provides a magnetic fluid seal device which enables to avoid the increase of the torque due to the aggregation of the solute of the magnetic fluid or the condition in which...
US20110193292 MAGNETIC FLUID SEALING AND PACKING RING SEALING DEVICE FOR RECIPROCATING SHAFT WITH THE PACKING RING HAVING THREE OBLIQUE MOUTHS  
A magnetic fluid sealing and packing ring sealing device for reciprocating shaft with the packing ring having three oblique mouths, characterized in that the first packing ring (2) with three...
US20090127794 MAGNETIC FLUID SEAL WITH PRECISE CONTROL OF FLUID VOLUME AT EACH SEAL STAGE  
A magnetic fluid seal includes a pole ring having an inner diameter, a rotatable shaft having an outer diameter, the rotatable shaft configured to extend along the inner diameter of the pole ring...
US20080211193 Self-cooling ferrofluid seal  
A method of cooling a ferrofluid seal that includes moving air from an atmospheric side of the ferrofluid seal over one or more heat dissipating surfaces within the ferrofluid seal through an air...
US20050179208 Shaft sealing arrangement for a pump for delivering hot fluids  
A shaft sealing arrangement for a pump for delivering hot fluids includes a dynamic shaft seal (4), in particular a slide ring seal, in order to seal a rotatable shaft (2) relative to a housing...
US20100090413 MAGNETIC FLUID SEAL WITH CENTERING OF BEARING AND SHAFT BY COMPRESSIBLE MEMBER  
The present disclosure describes a magnetic fluid sealing device having a shaft centered with respect to a magnetic structure and rolling element bearing, as well as a method for centering the...
US20110215533 RECIPROCATING SHAFT'S SEALING APPARATUS COMBINED A FERROFLUID SEAL WITH A C-SLIP-RING AND A YX-SEAL-RING  
A reciprocating shaft's sealing apparatus combined a ferrofluid seal with a C-slip-ring and a Yx-seal-ring, characterized in that the first O-ring (3), the first Yx-seal-ring (4) and the first...
US20060208173 Rotary encoder and method of manufacturing a rotary shaft  
A rotary encoder includes a rotary shaft that may be manufactured easily and efficiently includes a rotating magnet with a mounting precision in which variance may not occur readily. A rotary...
US20060244221 Hydrodynamic magnetic seal  
A hydrodynamic magnetic seal includes a magnetic mating ring and a sealing ring attracted to the magnetic mating ring. The magnetic mating ring and/or the sealing ring include hydrodynamic grooves...
US20110215532 FERROFLUID SEALING APPARATUS FOR A RECIPROCATING SHAFT  
A ferrofluid sealing apparatus for a reciprocating shaft, in which the first bearing, the first magnetism isolating rings, the first pole piece, the first O-shaped rubber seal, a magnet, the...
US20120049871 Failure indicator seal for a rotary feedthrough  
A failure indicator seal includes a nonmagnetic housing, a plurality of annular pole pieces having distal ends, the plurality of annular pole pieces disposed within the nonmagnetic housing, an...
US20090115137 Magnetic Fluid Sealing Device  
A magnet is embedded in an outer rotational shaft provided in a bearing hole of a case, and an outer magnetic circuit and an inner magnetic circuit are formed on the outer peripheral surface and...
US20120306157 Liquid Magnetic Seals in Wankel-Type Rotary Engines  
This invention proposes a new way of sealing the working chambers in Wankel-type rotary engines, by using ferrofluids and magnets in place of typical metal seals. The use of ferrofluids will allow...
US20150115541 MAGNETIC FLUID SEAL  
A magnetic fluid seal (20) sealing between an apparatus end (14) and a rotating shaft (22) going through the apparatus end, comprising a housing (38) comprising a magnetic flux generating means...
US20100322663 DEVICE AND METHOD FOR SEALING A SHAFT TO PREVENT THE PENETRATION OF A TONER MIXTURE  
In a device or method for sealing a shaft against penetration of a two-component toner mixture comprising magnetic carrier particles and toner particles, an annular, stationary sealing device is...
US20110210519 FERROFLUID SEALING APPARATUS WITH SMALL DIAMETER USED IN LOW TEMPERATURE  
A ferrofluid sealing apparatus with small diameter used in low temperature, in which the first bearing (6), the first magnetism isolating ring (9), the first pole piece (10) installed with the...
US20120018958 Magnetic Fluid Shaft-Sealing Device  
A magnetic fluid shaft-sealing device includes an outer ring for receiving a rotary shaft to rotate therewith. A magnetic-field generating unit is mounted in an annular seal chamber of the outer...
US20100171271 Magnetic Fluid Shaft-Sealing Device  
A magnetic fluid shaft-sealing device includes a seal cover (3) attached to a pump housing (1) in which a rotary shaft (2) is mounted. The seal cover (3) includes a shaft hole (33) extending from...
US20130161910 MAGNETIC FLUID SEAL  
A magnetic fluid seal is provided, that is capable of producing a stable sealing performance by stably holding the magnetic fluid in place, even in cases when the two members become eccentric. The...
US20170051833 ASSEMBLY METHOD OF MAGNETIC FLUID SEAL AND MAGNETIC FLUID SEAL  
In an assembly method of a magnetic fluid seal (100) that includes a magnetic field forming member (130) divided in a circumferential direction, a magnetic pole member (120) including a pair of...
US20160312899 MAGNETIC FLUID SEALING APPARATUS  
An even number of magnets (5) are incorporated in a housing (3) while sandwiched by pole pieces (6). A rotating shaft (2) has a boundary which is provided in a hollow portion (3a) of the housing...
US20160230894 METHODS AND DEVICES FOR MAGNETIC FLUID SEALS  
A system for rotary shaft seals with improved performance with respect to the maximum pressure differential before burst through occurs. The seals exploit discretely or in combination enhanced...
US20150377362 Sealed Bearing Assembly  
A sealed bearing assembly comprises an inner magnetic ring and an external magnetic ring to magnetically attract ferrofluid to block liquids or gases. The sealing can be maintained when a shaft is...
US20150345643 Shaft Seal Assembly  
An illustrative embodiment of porous media shaft seal assembly may include a stator and a rotor. The rotor may be configured to rotate with a shaft, and the stator may be engaged with a housing....
US20150316101 SEAL DEVICE EMPLOYING MAGNETIC FLUID  
{Problem} To prevent generation of mist and particulate, and prevent pressure fluctuations and reduced quality of the vacuum on the vacuum side can be prevented. {Solution} A seal device employing...
US20130193647 MAGNETIC FLUID SEAL DEVICE  
A cartridge-type magnetic fluid seal device has a flanged sleeve fixed to an external peripheral surface of the radially inside member of two members and which rotates together with the inside...
US20110062671 SYSTEMS, METHODS, AND APPARATUS FOR PROVIDING A MAGNETIC SEAL  
Embodiments of the invention can provide systems, methods, and an apparatus for providing a magnetic seal. According to one embodiment, a system having a magnetic seal can be provided. The system...

Matches 1 - 29 out of 29