(NL9002169-A)      Seal includes an inorganic material, pref. a glass esp. a silicate glass, which is tough at operating temps. and is fitted between parts which must be able to move relative to each other.    Pref. glasses are highly viscous alkali(ne earth) metal, B, Pb, Al and Li silicate glasses.    Glass has Bingham flow characteristics and has a viscosity at 1000 deg.C of 5000-50000 P. Pref. glasses are: (Na2O)0.15(CaO)0.10(SiO2)0.75 of viscosity at 1004 deg.C; (Na2O)0.20(CaO)0.10(SiO2)0.70 of viscosity 104P at 924 deg.C; (Na2O)0.20(MgO)0.10(SiO2)0.70 of viscosity 104P at 992 deg.C; (Na2O)0.20(K2O)0.30(SiO2)0.50 of viscosity 104P at 1000 deg.C; and (K2O)0.10(PbO)0.10(SiO2)0.80 which has a viscosity of 104P at 1000 deg.C.    USE/ADVANTAGE -   Esp. with an electrochemical or fuel cell. (claimed). Reliable, durable seal is obtd..    (US5360681-A)      Seal for gas-carrying line and longitudinal part, partic. in an electrochemical cell, comprises an inorganic insulation material of yield stress and viscosity at operating temp. which are sufficiently high to counteract leakage while allowing movement between the line and part.    The material is selected from the gp. of alkali metal silicate glass, alkaline earth metal silicate glass, B silicate glass, Pb silicate glass, Al silicate glass and Li silicate glass.    ADVANTAGE -   Allows relatively large displacement.    (JP6510620-W)      Seal includes an inorganic material, pref. a glass esp. a silicate glass, which is tough at operating temps. and is fitted between parts which must be able to move relative to each other.    Pref. glasses are highly viscous alkali(ne earth) metal, B, Pb, Al and Li silicate glasses.    Glass has Bingham flow characteristics and has a viscosity at 1000 deg. C of 5000-50000 P. Pref. glasses are: (Na2O)0.15 (CaO)0.10 (SiO)0.75 of viscosity 10 power 4 P at 1004 deg. C; (Na2O)0.20 (CaO)0.10 (Si)2)0.70 of viscosity 10 power 4 P at 924 deg. C; (Na2O)0.20 (MgO)0.10 (SiO2)0.70 of viscosity 10 power 4 P at 992 deg. C; (Na2O)0.20 (K2O)0.30 (SiO2)0.50 of viscosity 10 power 4 P at 1000 deg. C; and (K2O)0.10 (PbO)0.10 (SiO2)0.80 which has a viscosity of 10 power (4) P at 1000 deg. C.    USE/ADVANTAGE -   Esp. with an electrochemical or fuel cell (claimed). Reliable, durable seal is obtd.