Patent ID: 8403298
Filing Date: 2013-03-26
Classification: F16K

Abstract:
1. A gate valve, comprising: a main body structure with first and second sides defining a passage therethrough; a gate transversably positioned within the passage, suitable for occluding media flow therethrough, wherein the gate when positioned within the passage defines opposing sides, each of said sides having a peripheral margin; first and second elastomer sleeves disposed within the passage defined by said first and second sides, each elastomer sleeve having a continuous lip section, the lip sections of the first and second sleeves engaging the peripheral margins of the gate when it occludes the passage and engaging each other otherwise; a first plurality of rigid support segments affixed to the main body structure at the periphery of the passage on the first side of the gate, the first plurality of rigid support segments positioned radially around said first elastomer sleeve away from said passage and extending from the main body structure towards the transversal path of the gate; and a second plurality of support segments affixed to the main body structure at the periphery of the passage on the second side of the gate, the second plurality of rigid support segments positioned radially around said second elastomer sleeve away from said passage and extending from the main body structure towards the transversal path of the gate, wherein the surface of the second rigid support member closest to the gate extends beyond the surface of the main body structure.