Class 384/134 - Gas

Subclass of Class 384 - Bearings
Definition: Subject matter wherein the barrier fluid is a gas.
No. of patents: 20
Last issue date: 02/21/2006

Browse patents
Browse applications

Number	Title	Issue Date
7001075	Bearing hub A bearing hub for a gas turbine engine comprises an inner annular member defining a bearing chamber and an outer annular member extending around the inner annular member. Each annular member defines an aperture to receive a conduit which can extend to the bearing ch...	02/21/2006
7001258	Polishing jig for rolling mill backup roll bearing A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac...	02/21/2006
6942556	Polishing jig for bearing for use in back-up roll of rolling mill A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac...	09/13/2005
6932873	Managing work-piece deflection A work-piece deflection management system including: (a) a first and a second vacuum chambers, each said vacuum chamber having an air-bearing seal circumscribing one of its sides, and (b) a work-piece plate; wherein the air-bearing seals are aligned to face one-anot...	08/23/2005
6929421	Vibratory mechanism and method for lubricating the same A vibratory mechanism is provided for a compacting work machine. The vibratory mechanism includes at least one eccentric weight rotatably positioned within a housing. Pressurized fluid is introduced into the vibratory mechanism at an inlet passage. A means for movin...	08/16/2005
5751084	Air discharge guiding arrangement for preventing the scattering of foreign matter of a spindle motor The present invention relates to a spindle motor used in a hard disc drive or a magnetic recording/reproducing apparatus, wherein air discharge guiding arrangement prevents foreign matter such as lubricating particles and dust scattered in the bearings of...	05/12/1998
5746389	Cable retractor A cable retractor comprising interconnected restrainer segments attached end-to-end by pivot pins, such that the entire structure is foldable into a small space. A fiber optic cable is attached to restrainer segments in a manner such that the total path l...	05/05/1998
5482378	Vacuum motor bering protection system A vacuum motor bearing protection system includes a barrier wall interposed between a motor assembly and a fan assembly. A shaft interconnecting the assemblies is rotatably received within a bearing received by the barrier wall. In order to prevent moistu...	01/09/1996
5451066	System for sealing the bearing of a machine, especially a turbomachine The invention concerns a system for sealing the bearing of a machine, especially a turbomachine, in which a shaft is disposed inside a housing which includes a partition traversed by the shaft and separating an air chamber from an oil chamber, the housing...	09/19/1995
5450507	Fiber-optic address detector in photonic packet switching device and method for fabricating the same A fiber-optic address detector comprises fiber-optic delay lines on one surface of which a metal thin film is evaporated, the fiber-optic delay lines being connected in a melting state to fiber-optic couplers, wherein inputting address photonic signals ar...	09/12/1995
5358339	Hydrodynamic fluid bearing with liquid-radial bearing and gas-thrust bearing A bearing device suitable for a spindle motor, which comprises a base, a spindle stood on a central portion of the base, a radial cylindrical member (4) fixed on the spindle, a pair of thrust plates (3) secured to both end surfaces of the radial cylindric...	10/25/1994
4913447	Dynamic seal for rotor apparatus A dynamic seal is disclosed which prevents foreign material from entering the air bearing for a rotor apparatus. The rotor apparatus includes a housing, a generally cylindrical rotor disposed within the housing and having a shoulder, a fluid stream and a ...	04/03/1990
4794289	Bearing structures A bearing structure, preferably for supporting a rotary table (4) in metrological apparatus, includes both a journal bearing (34,36,38) and a thrust bearing (56,66). The journal bearing is made up of three dry pads (34,36,38), one (38) of which is radiall...	12/27/1988
4635907	Hydraulic buffer for elevators A hydraulic elevator buffer contains a piston (plunger) which is pushed down into a volume of hydraulic fluid. The buffer has no seals separating its interior from the atmosphere. As the piston is pushed down, the displaced fluid is forced through ports i...	01/13/1987
4586830	Combination rotary gas bearing and seal apparatus Rotary gas bearing and seal apparatus is disclosed which seals a region between the two planar bearing surfaces that is radially offset from the axis of rotation of the bearing. In the preferred embodiment, two arcuate gas sink channels sink the gas of th...	05/06/1986
4572092	Handwheel modified for improved lubrication and cooling A sewing machine has a housing and a mechanism in the housing for actuating the sewing elements of the machine. The mechanism includes a rotating shaft with a drive end which protrudes from the housing and carries a handwheel. The handwheel has a surface ...	02/25/1986
4565453	Agitator The invention relates to an agitator for the agitation of liquid media, and more specially for use while completely submerged in the medium. The bearings and the coupling for the agitator shaft are placed in a downwardly opening gastrap, there being a gas...	01/21/1986
4544317	Vacuum-to-vacuum entry system apparatus A vacuum-to-vacuum entry system which uses a rotary transport to transfer workpieces between two vacuum environments in a direction parallel to its axis of rotation and through the interface of a combination rotary gas bearing and seal. The combination ga...	10/01/1985
4522136	Method and apparatus for retarding oil leakage in a sewing machine The atmospheric pressure of lubricant containing cavities, from which leakage occurs, is lowered to a point below atmospheric pressure such that air from the environment is drawn thereinto. Since the air being drawn in occupies the passages through which ...	06/11/1985
4330135	Stuffing box with bellows to allow shaft gyratory movements A stuffing box to surround a shaft projecting from a container and comprising a casing containing an annular bellows which serves to provide for gyratory or like movements of the shaft....	05/18/1982

PatentStorm

Quotables

PatentStorm News

Class 384/134 - Gas