Foamed plastic lubricating seal
AssigneeSKF Industries, Inc.
InventorStig Persson
Life of this patent
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Abstract
A seal for a gap between at least two surfaces comprising a unitary body member made of a foam plastic material including at least one homogeneous peripheral surface portion and at least one internal porous portion. The porous portion is filled with a lubricant and is exposed through at least one section in the homogeneous peripheral surface portion to permit transfer of lubricant therethrough.
Claims11
A unitary, one piece seal for a gap between at least two surfaces comprising a single, one piece body member made of a foamed plastic material consisting of at least one homogeneous liquid impermeable hard and rigid peripheral surface portion and at least one porous portion of the same material, said porous portion filled with a lubricant, said porous portion being exposed through at least one section in said homogeneous peripheral surface portion to permit transfer of lubricant therethrough.
A combination comprising at least a pair of members having spaced apart surfaces defining a gap therebetween, a unitary one piece seal for sealing the gap comprising a single, one piece body member made of a foamed plastic material consisting of at least one homogeneous liquid impermeable and rigid peripheral surface portion and at least one porous portion of the same material, said porous portion filled with a lubricant, said porous portion being exposed through at least one section in said homogeneous peripheral surface portion to permit transfer of lubricant therethrough.
Dependencies are inferred from the claim text.