Low permeability hose system
AssigneeParker-Hannifin Corporation
InventorHoward L. Davidson
Life of this patent
Estimating the term…
Abstract
A low permeability hose system for providing an impermeable length of tube to transfer fluids that is flexible. The low permeability hose system generally includes a hose defining a fluid passage and an impermeable layer attached to the exterior surface of the hose. The impermeable layer is comprised of an aluminum coated heat sealable film that is impermeable to both liquids and gases. A protective layer may be attached to the impermeable layer to protect the impermeable layer from damage.
Claims17
A low permeability hose, comprising:
- a hose having an exterior surface and an interior surface defining a fluid passage, wherein said hose is comprised of at least one layer;
- and
- an impermeable layer attached to said exterior surface of said hose, wherein said impermeable layer has a first end and a second end adjacent to one another and wherein said first end and said second end are folded forming a folded portion after sealing;
- wherein said impermeable layer is comprised of an aluminized film that is impermeable to both liquids and gases.
A low permeability hose, comprising:
- a hose having an exterior surface and an interior surface defining a fluid passage, wherein said hose is comprised of at least one layer;
- an impermeable layer attached to said exterior surface of said hose, wherein said impermeable layer is impermeable to both liquids and gases;
- wherein said impermeable layer is comprised of a first layer of polyethylene, a second layer of polyester attached to said first layer, a third layer of aluminum attached to said second layer, and a fourth layer of polyethylene attached to said third layer;
- and
- a protective layer attached to said impermeable layer to protect said impermeable layer from damage.
A low permeability hose, comprising:
- a hose having an exterior surface and an interior surface defining a fluid passage, wherein said hose is comprised of at least one layer;
- and
- an impermeable layer attached to said exterior surface of said hose;
- wherein said impermeable layer is comprised of an aluminized film that is impermeable to both liquids and gases;
- wherein said impermeable layer is comprised of a heat sealable film;
- wherein said impermeable layer is comprised of a first layer of polyethylene, a second layer of polyester attached to said first layer, a third layer of aluminum attached to said second layer, and a fourth layer of polyethylene attached to said third layer;
- wherein said heat sealable film is heat formed upon said hose whereby said heat sealable film is contracted firmly adjacent to said exterior surface of said hose.
A low permeability hose, comprising:
- a hose having an exterior surface and an interior surface defining a fluid passage, wherein said hose is comprised of at least one layer;
- and
- an impermeable layer attached to said exterior surface of said hose;
- wherein said impermeable layer is comprised of an aluminized film that is impermeable to both liquids and gases;
- wherein said impermeable layer is comprised of:
- a first layer of polyethylene;
- a second layer of polyester attached to said first layer;
- a third layer of aluminum attached to said second layer;
- and
- a fourth layer of polyethylene attached to said third layer.
Dependencies are inferred from the claim text.