Patent ID: 6454314
Filing Date: 2002-09-24
Classification: F16L,Y10S

Abstract:
A combination including a push-in part and an elastomeric seal for use with a plug-in coupling including a housing having a cylindrical interior surface, said push-in part and said elastomeric seal being connectable with a pipe to form a unit that is insertable into the cylindrical interior surface, said elastomeric seal effective for sealing a cylindrical and uninterrupted exterior surface of the pipe relative to the cylindrical interior surface of the housing, said combination comprising:a radially outward-facing annular lip arranged on said seal and insertable in the cylindrical interior surface of the housing; and a radially inward-facing annular lip arranged on said seal and insertable over the exterior surface of the pipe, said radially outward-facing annular lip contactable with the cylindrical interior surface in a prestressed state and said radially inward-facing annular lip contactable with the exterior of the pipe in a prestressed state when the push-in part is inserted with the pipe into the cylindrical interior surface; and a positive fitting joint connection arranged between said seal and said push-in part for connecting said seal and said push-in part, said positive fitting joint connection being non-releasable only when the pipe is inserted through said radially inward-facing lip of said seal to form the unit with said push-in part and said elastomeric seal.