Driven separator for gas-seal panels

Applicant: Dresser-Rand Co, USAThis system is designed to be an efficient, compact and cost-effective way and method of supplying clean, dry gas to gas seal buffer supply lines and does not require regular maintenance. The system uses a rotary sepa-rator, magnetically coupled to a source of rotational power, along with a gas stream cooling unit configured to condense liquids out of a wet gas stream before the wet gas stream is supplied to the rotating separator. The system may further include a gas stream pressure booster; a heating unit to heat a dry gas stream, generated by the rotary separator; and a controlled recirculation loop, configured to continually recirculate the wet gas through the driven rotary separator until the desired amount of condensates are removed from the wet gas stream.Patent number: WO/2010/065303 Inventor: P. AuberPublication date: 10 June 2010

Inflatable door seal

Applicant: Rite-Hite HoldingCorp, USAThis patent covers an inflatable seal for a door that is used on, for example, a cold storage unit. It includes a bidirectional airflow pattern of frost-inhibiting heated air. The bidirectional flow pattern enables the seal’s discharge opening and supply air blower to both be located well above the floor and preferably above the door-way. Such an arrangement makes it possible to recover previously heated air by returning some of the warm air back to the blower.Patent number: WO/2010/065377Inventors: S. Campbell, C.D. Hardison,R. Kern, P. Knutson, P.S. Schulte and M. UngsPublication date: 10 June 2010

Method of checking a seal used in a fuel-cell stack

Applicant: Inficon GmbH, Germany The system described is used to test the seals used in a fuel-cell stack. A trace gas is intro-duced into the fuel-cell feed channel of the stack. A carrier gas is fed to the feed air chan-nel and led through the discharge channel to a gas sensor which determines whether or not the carrier gas contains amounts of trace gas. A defective fuel cell can be located by introducing a lance, composed of a sniffing probe, into the corresponding channel and determining the position of the probe.

Patent number: WO/2010/066802Inventors: S. Seitz and R. WidtPublication date: 17 June 2010

Seal for a platform in a turbine engine rotor

Applicant: SNECMA, France This invention relates to a seal for an interme-diate platform provided between two adjacent blades in the rotor of a turbine engine. The seal is characterised by its cross-section which has an open-ended shape between the two ends. It is contoured to match the profile of the turbine blade, adjacent to the root. Patent number: WO/2010/066833Inventors: J.-B. Forgue, J-L. Reghezzaand C. StochmilPublication date: 17 June 2010

Vehicle door seal

Applicant: Cooper-StandardAutomotive France SA, France A seal for the top edge of a vehicle door is detailed. It includes a rigid portion for location, a flexible portion for effective sealing and a gutter to lead fluid along to the ends of the top edge of the door.Patent number: WO/2010/066993Inventors: D. Stefanelli, J.-M. Veille and V. GuizouarnPublication date: 17 June 2010

Low-maintenance seal mechanism

Applicant: ULVAC Inc, JapanThis patent discusses a seal mechanism, which requires less frequent maintenance, for replenishment of a lubricant material, and has reduced friction, together with a treatment device on which the seal mechanism is mount-ed. A chamber on the fluid side retains the lubricant close to the seal. Various circulation devices are illustrated in the chamber. Details of the actual installation are shown, suggesting that the application may be some form of proc-ess under vacuum, but no information on this is available form the English abstract.Patent number: WO/2010/067540 Inventors: K. Musha, H. Minamiand K. YamadaPublication date: 17 June 2010

Pump seal

Applicant: Flowserve Management Co, USAThis patent describes a mechanical seal for automotive coolant pump applications – in par-ticular heavy-duty truck diesel engines. A fea-

ture of the design is a sintered ring (44) that is used as an anti-rotation device for the station-ary, floating seal face. A series of detents create the interlock with the stationary face. Economy and simplicity of manufacture are claimed. Patent number: WO/2010/068297Inventors: P. Pinto, J. Baibakand M. KrohaPublication date: 17 June 2010

Fluid filter assembly including a seal

Applicant: Dow GlobalTechnologies Inc, USA This invention is directed towards fluid filter assemblies, particularly for industrial proc-ess fluids and water systems. The seal that is described has a basic omega cross-sectional shape. A pair of flat circumferential surfaces are moulded onto the outer diameter of the filter element and the flexible section seals against the casing. A selection of alternative sections on a similar theme is included.Patent number: WO/2010/068518Inventor: R. McCollamPublication date: 17 June 2010

Non-metallic, ultra-low permeability butyl sealing tape Applicant: Serious Materials Inc, USA This patent describes a high-performance tape for use in insulated glass units (IGUs). It combines exceptionally low permeability to gases and vapours and has extremely low thermal conductivity. Patent number: WO/2010/068655Inventors: B.D. Tinianov and M. GoldbergPublication date: 17 June 2010

PATENTS

October 2010 Sealing Technology13

Patent WO/2010/068297 details a coolant pump for truck diesel engines. It includes a sintered ring as an anti-rotation device.