Injection Molded Seal Rings and Methods for Making Them

An injection molded seal ring comprising a circular ring body extending between a first end and a second end engageable with the first end, the circular ring body comprising

• an inner circumferential face;
• an outer circumferential face opposing the inner circumferential face having a first lateral edge and an opposed second lateral edge;
• a first lateral face extending between the inner circumferential face and the opposing outer circumferential face;
• a second lateral face opposing the first lateral face, disposed between the inner circumferential face and the opposing outer circumferential face;
• a recess formed in the outer circumferential face, the recess not extending to both the first lateral edge and the second lateral edge of the outer circumferential face;
• and
• an injection molding gate vestige disposed in the recess, the injection molding gate vestige not extending beyond the outer circumferential face.