(US5716503-A)      The centre post electrochemical cell stack (10) for the generation of a product gas from a supply fluid has a frame (12) with a base plate (14) with a wall (16) affixed to it to define a cell chamber (18) to house an electrochemical cell. A T-cap (22) with a top plate (24) and centre post (26) extends away from the top plate which is secured to the wall of the frame (12) to close the cell chamber (18) and the centre post (26) passes through a central through-bore (127) in the cell and is adjustably secured to the base plate (14) so that the T-cap (22) and frame (12) cooperate to contain pressure generated by operation of the cell.    USE -   Used for the production of oxygen gas for use in air or spacecraft. A further use is as a fuel cell configured to produce electrical energy from gaseous supply fuels.    ADVANTAGE -   The cell stack has enhanced sealing properties w.r.t leakage under an internal operating pressure of approximately 2000 psi and does not have large heavy frame components.    (EP948669-A1)      The centre post electrochemical cell stack (10) for the generation of a product gas from a supply fluid has a frame (12) with a base plate (14) with a wall (16) affixed to it to define a cell chamber (18) to house an electrochemical cell. A T-cap (22) with a top plate (24) and centre post (26) extends away from the top plate which is secured to the wall of the frame (12) to close the cell chamber (18) and the centre post (26) passes through a central through-bore (127) in the cell and is adjustably secured to the base plate (14) so that the T-cap (22) and frame (12) cooperate to contain pressure generated by operation of the cell.    USE -   Used for the production of oxygen gas for use in air or spacecraft. A further use is as a fuel cell configured to produce electrical energy from gaseous supply fuels.    ADVANTAGE -   The cell stack has enhanced sealing properties w.r.t leakage under an internal operating pressure of approximately 2000 psi and does not have large heavy frame components.    (JP2001500189-W)      The centre post electrochemical cell stack (10) for the generation of a product gas from a supply fluid has a frame (12) with a base plate (14) with a wall (16) affixed to it to define a cell chamber (18) to house an electrochemical cell. A T-cap (22) with a top plate (24) and centre post (26) extends away from the top plate which is secured to the wall of the frame (12) to close the cell chamber (18) and the centre post (26) passes through a central through-bore (127) in the cell and is adjustably secured to the base plate (14) so that the T-cap (22) and frame (12) cooperate to contain pressure generated by operation of the cell.    USE -   Used for the production of oxygen gas for use in air or spacecraft. A further use is as a fuel cell configured to produce electrical energy from gaseous supply fuels.    ADVANTAGE -   The cell stack has enhanced sealing properties w.r.t leakage under an internal operating pressure of approximately 2000 psi and does not have large heavy frame components.    (EP948669-B1)      The centre post electrochemical cell stack (10) for the generation of a product gas from a supply fluid has a frame (12) with a base plate (14) with a wall (16) affixed to it to define a cell chamber (18) to house an electrochemical cell. A T-cap (22) with a top plate (24) and centre post (26) extends away from the top plate which is secured to the wall of the frame (12) to close the cell chamber (18) and the centre post (26) passes through a central through-bore (127) in the cell and is adjustably secured to the base plate (14) so that the T-cap (22) and frame (12) cooperate to contain pressure generated by operation of the cell.    USE -   Used for the production of oxygen gas for use in air or spacecraft. A further use is as a fuel cell configured to produce electrical energy from gaseous supply fuels.    ADVANTAGE -   The cell stack has enhanced sealing properties w.r.t leakage under an internal operating pressure of approximately 2000 psi and does not have large heavy frame components.