Vacuum hose and method of manufacturing the same
AssigneeCpa Pool Products, Inc.
InventorGuoxin Lv
Life of this patent
Estimating the term…
Abstract
The vacuum hose includes an inner tube body and an outer tube body sleeved over the inner tube body. The inner tube body has a spiral structure defined by a first contact portion and a second contact portion. One end of the second contact portion is connected to one end of the first contact portion, and the other end of the second contact portion is in contact with the other end of the first contact portion. The outer tube body has a spiral structure defined by a covering portion. The covering portion contacts the first contact portion and the second contact portion and covers the end of the second contact portion in contact with the end of the first contact portion.
Claims16
A vacuum hose comprising:
- an inner tube body having a spiral structure defined by a first contact portion and a second contact portion, wherein one end of the second contact portion is connected to one end of the first contact portion, and the other end of the second contact portion is in contact with the other end of the first contact portion;
- and
- an outer tube body having a spiral structure defined by a covering portion, wherein the outer tube body is sleeved over the inner tube body such that the covering portion contacts the first contact portion and the second contact portion and covers the end of the second contact portion in contact with the end of the first contact portion.
A method of manufacturing a vacuum hose comprising:
- forming an inner tube body having a spiral structure defined by a first contact portion and a second contact portion, wherein one end of the second contact portion is connected to one end of the first contact portion, and the other end of the second contact portion is in contact with the other end of the first contact portion;
- forming an outer tube body having a spiral structure defined by a covering portion;
- and
- combining the outer tube body with the inner tube body such that the covering portion contacts the first contact portion and the second contact portion and covers the end of the second contact portion in contact with the end of the first contact portion.
Dependencies are inferred from the claim text.