Filter element fixation for filter presses
AssigneeMadison Filter Limited
InventorsRichard Patrick Lydon, James Christopher Edwards
Life of this patent
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Abstract
A method of making a filter by bonding two pieces of cloth to the flanges of a barrel-neck connector by locating a ring of bonding agent mixed with a metal powder between each flange and the adjacent surface of each cloth and using induction heating to heat the metal and thus cause the bonding agent to bond the cloth to the flanges. The bonding agent may comprise guide legs which allow its accurate location between the respective cloth and flange and/or the ring may be flexible allowing the ring to be flexed into position over the respective flange of the barrel-neck.
Claims15
A filter element fixation apparatus comprising a flexible piece of thermoplastic elastomeric bonding agent mixed with a metal powder for use in a method of making a filter including the steps of bonding two pieces of cloth to the flanges of a flanged tube by locating said flexible piece between each flange and the adjacent surface of the cloth and using induction heating to heat the metal powder and this cause the bonding agent to bond the cloth to the flanges.
A method of making a filter including the steps of bonding two pieces of cloth to the flanges of a flanged tube by locating an annular piece comprising a thermoplastic bonding agent mixed with a metal powder between each flange and the adjacent surface of the cloth and using induction heating to heat the metal powder and thus cause the bonding agent to bond the cloth to the flanges, wherein the annular piece has guide means to ensure its accurate location between the respective cloth and flange.
Dependencies are inferred from the claim text.