Eaton Corporation

Aeroquip Corporation

Agc Chemicals Americas, Inc.

Robert Michael Lefere

Javed Abdurrazzaq Mapkar

Edward J Hummelt

Kenneth Phaneuf

Joseph David Proof

Soumayajit Sarkar

Gregory James Chapman

Guenter O Kunz

Brian J Walsh

Javed Mapkar

Edward Hummelt

A layer for directing a hydraulic fluid includes a first fluoropolymer, a first crosslinker, and an anti-static additive. The first fluoropolymer is present in an amount greater than 60 parts by weight, the first crosslinker is present in an amount of from about 1 to about 10 parts by weight, and the anti-static additive is present in an amount of from about 0.4 to about 4 parts by weight, each based on 100 parts by weight of the layer. The layer may be included in a layered tube. In addition to the layer, the layered tube also includes an outer layer. The outer layer includes a second fluoropolymer, which is the same as or different than the first fluoropolymer. The second fluoropolymer is present in an amount greater than 60 parts by weight based on 100 parts by weight of the outer layer.

Layered tube and layer for use in same

A high pressure hose that is resistant to microvoid formation includes an inner tube comprising a blend of crosslinked fluoroplastic material and fluoroelastomeric material, a first reinforcement layer constructed of para-aramid synthetic fibers, and an adhesive layer, and an outer cover.

High pressure hose with polymeric tube

A method includes premixing an anti-static additive and a first crosslinker to form an anti-static intermediate mixture where the anti-static additive is dispersed in the first crosslinker. The method also includes compounding the anti-static intermediate mixture and at least a portion of the first fluoropolymer to form a first compounded mixture. The method further includes extruding the first compounded mixture to form a layer.

Method for forming a layered tube and layer therein

A hose coupling assembly is described that includes a nipple section for retaining a flexible hose where the hose is crimped between the nipple section and a socket. A tubular sleeve covers a portion of the nipple section known as the nipple extension section and the sleeve is attached to the nipple section so as to cover at least one aperture formed in the nipple section such that the sleeve is forced outward towards the socket when pressurized fluid is introduced into the hose coupling assembly which increases the compression force on the hose.

Hose coupling

A firesleeve assembly as used with hose systems, such as pressurized fuel, lubricating and hydraulic circuits. The cut end of a firesleeve utilizing a fibrous material such as glass fiber is enclosed and sealed by a cuff sleeve having a portion located upon the hose, or an associated fitting, wherein a portion of the cuff sleeve is located within the firesleeve adjacent the cut end and another portion of the cuff sleeve is folded over the cut end locating an outer cuff sleeve portion over the outer diameter of the firesleeve and enclosing the firesleeve end. Preferably, an annular clamp circumscribes the cuff sleeve to produce sealing between the cuff sleeve, firesleeve and hose system preventing moisture or liquids from entering the firesleeve end.

Method of forming hose and fire sleeve end assembly

A multiple layer hose and fitting assembly for refrigeration circuits particularly suitable for larger sizes of refrigeration conduit wherein refrigerant loss to the atmosphere through the hose material is minimized and flexibility is maintained. An inner tube of thermoplastic material is employed to minimize refrigerant loss due to permeation, and the inner tube is corrugated to provide lateral flexibility. The hose includes pressure reinforcing layers or covers, and a moisture ingression resistant sheath or layer circumscribes the inner tube to protect the inner tube from contamination by moisture. In the preferred embodiment the sheath is located between a braided reinforcing layer engaging the inner tube and a braided cover. The moisture ingression resistant layer is preferably formed of a thermoplastic rubber, and the adjacent hose layers are capable of limited axial displacement relative to each other to assure lateral flexibility. The hose utilizes fittings which include a serrated socket to aid in fitting retention, and sealing rings or a tubular insert cooperating with the hose corrugations may be employed to augment fitting sealing.

Corregated refrigeration hose system

The invention pertains to an insert for flexible wall hose used in vacuum applications, particularly hydraulic vacuum environments, consisting of a tubular body of nonmetallic elastomeric material adapted to be closely received within the bore of the hose, the insert body being supported against internal collapse by a plurality of metal rings embedded within the insert body material. The rings are axially spaced with respect to the body length whereby the insert body may be readily severed intermediate adjacent rings, and the end regions of the inserts are defined by the elastomeric body material. A plurality of insert bodies are inserted within the hose to be internally supported, and the insert body construction permits the inserts to be readily located within all lengths of hose complete support of the hose in hydraulic vacuum applications and produces minimal flow resistance and turbulence.

Growing community of inventors

Jackson, MI, United States of America

Robert Michael Lefere