Seal ring for plug
AssigneeSurpass Industry Co., Ltd.
InventorsHiroshi Imai, Koichi Abe
Life of this patent
Estimating the term…
Abstract
The object is to provide a seal ring for a plug, which, when used in a plug cap, can be used regardless of kind of chemical liquid and has no possibility of damaging a seal surface of the plug in tightening the plug cap. The seal ring is placed in the plug cap installed on the plug having a liquid path and/or a gas path, and the seal ring achieves liquid sealing and/or gas sealing of the plug. The seal ring (1) has on its upper surface an edge seal section (17), on its inner surface a surface seal section (18), and on its outer surface a projection section (19) engaging with a ring engagement section (16a) formed on the inner surface of the plug cap.
Claims9
A seal ring (1) for a plug that is disposed inside a plug cap (2) which covers the plug, wherein the plug is provided with a liquid path and/or a gas path (12);
- and that seals fluid from the liquid path of the plug and/or fluid from the gas path (12) of the plug, comprising:
- an edge seal section (17) in an upper surface of the seal ring (1), abutting and being compressed and deformed against the plug cap (2),
- a surface seal section (18) in an inner surface of the seal ring (1), abutting against a seal surface (6, 6a) of the plug, and
- a projection section (19) in an outer surface of the seal ring,
- wherein the projection section (19) is engaged with and deformed against a ring engagement section (16a) formed in an inner surface of the plug cap (2).
A seal ring (1) for a plug that is disposed inside a plug cap (2) which covers the plug, wherein the plug is provided with a liquid path and/or a gas path (12);
- and that the seal ring (1) seals fluid from the liquid path of the plug and/or fluid from the gas path (12) of the plug, comprising:
- a surface seal section(18) in an inner side surface of the seal ring (1), abutting against a seal surface (6, 6a) of the plug, and
- a projection section (19) in an outer side surface of the seal ring,
- wherein the projection section is engaged with and deformed against a ring engagement section (16a) formed in an inner surface of the plug cap (2).
A seal ring (1) for a plug that is disposed inside a plug cap (2) which covers the plug, the plug being provided with a gas path (12), wherein the seal ring (1) seals fluid from the gas path (12) of the plug, comprising:
- a first edge section (31), having at least one lip which abuts against an edge seal (16) surface of a ring engagement (15) section formed inside the plug cap (2);
- and
- a second edge section (32), which abuts against a seal surface (6c) of the plug,
- wherein the second section (32) has a larger number of lips than the first section (31).
Dependencies are inferred from the claim text.