Annular seal

A seal assembly for closing off an annular gap between a first and second body and supported by at least one of the first and second bodies, comprising:

• an annular body having an upper and a lower end and a longitudinal axis, wherein the annular body comprises a first groove having a bottom and a first circumference at the bottom;
• and
• at least one ring mounted on one of the ends of the annular body and configured to have a relaxed dimension greater than the annular gap between the first and second bodies so that opposed loop ends on the ring are compressed to be inserted in the annular gap, the ring comprising a bend between the opposed loop ends configured to store a force created by insertion of the ring into the annular gap and to apply the force on the opposed loop ends against the first and second bodies.

A seal assembly for sealing an annular gap between first and second bodies, comprising a pair of rings on first and second ends of an annular body;

• wherein each ring comprises a pair of u-shaped loops extending radially toward one another radially into the annular body and securing the ring to the annular body;
• wherein each pair of u-shaped loops are connected by a v-shaped bend that facilitates elastic deformation of the ring;
• and wherein the annular body comprises a plurality of rectangular grooves on sides of the annular body between the pair of rings.