Patent ID: 8297626

Claim:
An interface sealing device including: a seal including a first sealing flange and a second sealing flange; the first and second sealing flanges having a forked orientation relative to each other defining an open end and defining a pressure zone between the two sealing flanges including the open end; a first body abutting the first flange; and a second body abutting the second flange; the seal permitting insertion and removal relative movement of the first and second bodies when the pressure zone has an internal pressure approximating natural atmospheric pressure, the seal restricting relative movement of the first and second bodies when the pressure zone is infused with high pressure gas; wherein said first sealing flange and second sealing flange have two different lengths so that said high pressure gas enters between said first and second flanges by an opening created by one of the flanges having a shorter length than the other flange; wherein said seal has a top side which abuts said first body and a bottom side, said bottom side's surface circumference and width defines a receiving area for said second body, a portion of said bottom side abuts said second body, said top side of said seal further comprises a circumferential shoulder which abuts a receiving shoulder formed into said first body to non-destructively retain said seal in place when said second body is inserted into and removed from said first body; wherein said seal further comprises a first and second end, wherein said first and second flanges are on said first end and said second end is on an opposite side of said seal from said first end; wherein said bottom side surface is further defined with respect to a first diameter and a second diameter as measured by a line through said center axis from opposing sides of said bottom side surface within said seal, said first diameter line end points are substantially at locations of said bottom side surface in proximity to where said first flange and said second flange joins to a main body of said seal on said first end, said second diameter line end points are substantially at locations of said bottom side surface in proximity to a junction of said circumferential shoulder with an adjacent section of said seal where an edge of said circumferential shoulder faces toward said second side, said second diameter being larger than said first diameter and thereby forming a tapering shape to said bottom side surface that is operable to guide said second body as it is inserted into said seal from said second end; wherein said first diameter is further determined so as to provide a slight interference fit between said bottom side surface and an outer portion of said second body; wherein said seal is formed so that only said second sealing flange is in contact with said second body after said second body is inserted into said seal.