USRE33412E - Hose construction - Google Patents
Hose construction Download PDFInfo
- Publication number
- USRE33412E USRE33412E US07/446,501 US44650189A USRE33412E US RE33412 E USRE33412 E US RE33412E US 44650189 A US44650189 A US 44650189A US RE33412 E USRE33412 E US RE33412E
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- US
- United States
- Prior art keywords
- hose construction
- ply
- set forth
- approximately
- monofilament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
- B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/088—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising a combination of one or more layers of a helically wound cord or wire with one or more braided layers
Definitions
- This invention relates to a new hose construction and to a new method of making a hose construction.
- a hose construction having a tubular wall means comprising an inner layer means of polymeric material, an outer layer means of polymeric material, an intermediate layer means of polymeric material disposed between the inner and outer layer means, a helically wound thermoplastic monofilament of substantially circular transverse cross-sectional configuration embedded in the intermediate layer means, a first ply of woven material disposed intermediate the outer layer means and the intermediate layer means, and a second ply of woven material disposed intermediate the inner layer means and the intermediate layer means.
- a tubular wall means comprising an inner layer means of polymeric material, an outer layer means of polymeric material, an intermediate layer means of polymeric material disposed between the inner and outer layer means, a helically wound thermoplastic monofilament of substantially circular transverse cross-sectional configuration embedded in the intermediate layer means, a first ply of woven material disposed intermediate the outer layer means and the intermediate layer means, and a second ply of woven material disposed intermediate the inner layer means and the intermediate layer means.
- a hose construction having a tubular wall means that is reinforced by a helically wound metallic wire member tends to lose its normal shape when subjected to external and/or internal pressure differentials that collapse the hose construction because the wire reinforcing member becomes permanently deformed.
- thermoplastic monofilament in place of the wire reinforcing member provides a shape retention characteristic for the resulting hose construction if that thermoplastic monofilament has a substantially circular transverse cross-sectional configuration with a diameter that is approximately one-third of the thickness of the wall means of the hose construction and is approximately one-third of the distance between the centers of each pair of adjacent turns of the monofilament.
- one embodiment of this invention provides a hose construction having a tubular wall means comprising an inner layer means of polymeric material, an outer layer means of polymeric material, an intermediate layer means of polymeric material disposed between the inner and outer layer means, a helically wound thermoplastic monofilament of substantially circular transverse cross-sectional configuration embedded in the intermediate layer means, a first ply of woven material disposed intermediate the outer layer means and the intermediate layer means, and a second ply of woven material disposed intermediate the inner layer means and the intermediate layer means, the monofilament having a diameter that is approximately one-third of the thickness of the wall means and is approximately one-third of the distance between the centers of each pair of adjacent turns of the monofilament.
- Another object of this invention is to provide a new method of making the hose construction the method of this invention having one or more of the novel features of this invention as set forth above or hereinafter shown or described.
- FIG. 1 is a broken-away perspective view of one embodiment of the new hose construction of this invention.
- FIG. 2 is a view similar to FIG. 1 and illustrates another embodiment of the new hose construction of this invention.
- FIG. 3 is a fragmentary view schematically illustrating the method of this invention for forming the hose construction of FIGS. 1 or 2, FIG. 3 illustrating the various layers of the wall means thereof disposed on a forming mandrel in a stepped broken away relation.
- FIG. 4 is an enlarged fragmentary cross-sectional view taken on line 4--4 of FIG. 2.
- FIG. 5 is a view similar to FIG. 4 and illustrates another embodiment of the hose construction of this invention.
- FIG. 6 is a view similar to FIG. 4 and illustrates another embodiment of the hose construction of this invention.
- the new hose construction of this invention is generally indicated by the reference numeral 20 and the only difference between the hose construction 20 of FIG. 1 and the hose construction 20 of FIG. 2 is that the hose construction 20 of FIG. 1 has the outer peripheral surface 21 thereof provided with a plurality of helically disposed convolutions 22 formed therein in a manner well known in the art whereas the outer peripheral surface 21 of the hose construction 20 of FIG. 2 is substantially smooth.
- the hose construction 20 of FIGS. 1 and 2 are identical in the materials used to form the same by the method of this invention and therefore the particular structure of the hose construction 20 of FIG. 2 and the method of making the same will now be described.
- the hose construction 20 has a tubular wall means 23 comprising an inner tubular layer means 24 of polymeric material, an outer tubular layer means 25 of polymeric material, an intermediate tubular layer means 26 of polymeric material disposed between the inner and outer layer means 24 and 25, a helically wound thermoplastic monofilament 27 of substantially circular transverse cross-sectional configuration embedded in the intermediate layer means 26, a first tubular ply 28 of woven material disposed intermediate the outer layer means 25 and the intermediate layer means 26, and a second tubular ply 29 of woven material disposed intermediate the inner layer means 24 and the intermediate layer means 26, the layer means 24, 25 and 26 together with the monofilament 27 and plies 28 and 29 having been heat cured together in a manner well known in the art for making hose construction.
- such tubular hose construction 20 has a shape retention characteristic and it is believed that such charcteristic is provided by the thermoplastic monofilament 27 having a diameter 30, FIG. 4, that is approximately one-third of the thickness 31, FIG. 4, of the wall means 23 and is approximately one-third of the distance 32 between the centers 33 of each pair of adjacent turns 34 of the monofilament 27.
- the intermediate layer means 26 of the wall means 23 of the hose construction 20 of this invention is formed from two separate layers 35 and 36 of polymeric material but it is to be understood that the same can comprise a single layer, such as the single layer 37 of the hose construction 20A illustrated in FIG. 6 whereby the various parts of the hose construction 20A of FIG. 6 that are similar to the parts of the hose construction 20 of FIGS. 2-4 are given the same reference numeral followed by the reference letter "A".
- One method of this invention for forming the hose construction 20 with the wall means 23 as previously described is generally indicated by the reference numeral 38 in FIG. 3 and comprises a cylindrical mandrel 39 formed of any suitable and conventional material on which the wall means 23 can be formed in a conventional manner such as by wrapping the various layers thereon in the helical overlapping manner as illustrated for the layer means 24, 35 and 36 and for the plies 29 and 28 as illustrated in FIG. 3 or directly in tubular form such as by extrustion for the layer means 24, 35, 36 and 25 as is illustrated in FIG. 3 for the outer layer means 25 and by braiding for the plies 28 and 29.
- the inner layer means 24 of polymeric material is first disposed on the outer peripheral surface 40 of the mandrel 39 and then the ply 29 is disposed on top of the layer means 24. Thereafter, the inner layer means 35 of the intermediate layer means 26 is disposed on top of the ply 29 as illustrated in FIG. 3.
- the monofilament 27 is then helically wound on top of the layer means 35 as illustrated in FIG. 3 and in the embodiment of the hose construction 20 of this invention, the turns 34 of the monofilament 27 are helically wound so that not only is the distance between the centers 33 of adjacent turns 34 approximately one-third of the diameter 30 of the monofilament 27 as previously described, but also each turn 34 is disposed at an angle of approximately eighty-seven degrees 41' relative to the longitudinal axis of the hose construction 20 that is represented by the reference numeral 41 in FIGS. 1-3.
- the outer layer means 36 of the intermediate layer means 26 is disosed on top of the monofilament 27.
- the ply 28 is then disposed on top of the layer means 36 and the outer layer means 25 is subsequently disposed on top of the ply 28.
- the thus disposed material on the mandrel 39 is subjected to heat and pressure to vulcanize or heat cure all of the polymeric means of the various layers together to form the bonded together hose construction 20 as illustrated in FIG. 2, the basic method of vulcanizing a plurality of layers together to form the wall means of a hose construction being well known in the art and therefore a further description thereof is not necessary.
- the outer surface of the hose construction has a string (not shown) wound on top of the outer layer means 25 while the hose construction is on the mandrel 39 and before the same has been heat cured whereby the wrapping of the string causes the layer means 25 and 36 as well as the ply 28 to embed between certain turns 34 of the monofilament 27 to a greater extent to form the undulations illustrated in FIG. 1.
- the undulations 22 do not penetrate to the internal peripheral surface 42 of the hose construction 20 so that the internal peripheral surface 42 remains substantially as a smooth wall as illustrated in the drawings.
- the layer means 37 is disposed on the ply 29 and then the monofilament 27 is helically wound on the layer means 37 with the ply 28 then being directly applied on top of the monofilament 27 so that when the resulting wall means 23 is subsequently vulcanized as previously set forth, the monofilament 27 becomes completely embedded in the intermediate layer means 37 as illustrated in FIG. 6 and in a manner well known in the art.
- the monofilament 27 becomes completely embedded in the intermediate layer means 37 as illustrated in FIG. 6 and in a manner well known in the art.
- the aforementioned British Pat. Nos. 645,567 and 1,320,508 which are being incorporated into this disclosure by this reference thereto.
- Such a hose construction is made from an inner layer means 24 having a thickness of approximately 0.156 of an inch before the heat curing operation and is formed from a blend of two different polymeric materials, one being NBR and the other being SBR.
- the ply 29 of woven material comprises a wire braid approximately 0.045 of an inch thick before the heat curing operation and comprised of 0.018 of an inch brassplated steel wire.
- the inner layer means 35 of the intermediate layer means 26 has a thickness of approximately 0.070 of an inch before the heat curing operation and comprises a blend of two different polymeric materials, one being NBR and the other being SBR with the NBR and SBR thereof being different from the NBR and SBR of the inner layer means 24.
- the monofilament 27 thereof comprises nylon-6.
- the outer layer means 36 of the intermediate layer 26 is of the same thickness and of the same material as the inner layer 35 thereof.
- the ply 28 of woven material comprises the same material and thickness as the ply 29.
- the outer or cover layer means 25 has a thickness of approximately 0.115 of an inch before the heat curing operation and is formed of the same material as the layer means 35 and 36 of the intermediate layer means 26.
- a hose construction similar to the above has been made to have an internal diameter of approximately four inches and the same was made of the same layers of material having the aforementioned thickness and materials as the three inch hose construction previously set forth except that the plies 28 and 29 thereof contained more ends of wire braided therein so that the effective thickness of the plies 28 and 29 is greater.
- the resulting vulcanized wall means 23 thereof has a thickness 31 of approximately 0.516 of an inch.
- hose construction 20 previously set forth has the plies 28 and 29 of woven material comprising braided metallic material, it is to be understood that such plies could be formed of woven textile material and, in particular, braided textile material.
- FIG. 5 wherein another embodiment of the hose construction of this invention is generally indicated by the reference numeral 20B and the parts thereof similar to the hose construction 20 previously described are indicated by like reference numerals followed by the reference letter "B".
- the plies 28B and 29B are formed of braided tetile material and an additional ply 43 of braided textile material is disposed intermediate the inner layer means 24B and the ply 29B of braided textile material.
- anothr layer means 44 of polymeric material is disposed intermediate the plies 29B and 43, the layer means 44 being formed of the same material as the layer means 25B and 26B.
- the overall thickness 31B of the subsequently heat cured wall means 23B of the hose construction 20B may be greater than the thickness 31 of the hose construction 20 previously described, it can still be seen that the diameter 30B of the monofilament 27B is still approximately one-third of the wall thickness 31B and is approximately one-third of the distance 32B between the centers 33B of adjacent turns 34B of the monofilament 27B for the reasons previously set forth.
- this invention not only provides a new hose construction, but also this invention provides a new method of making a hose construction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/446,501 USRE33412E (en) | 1986-03-27 | 1989-12-05 | Hose construction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/845,142 US4706712A (en) | 1986-03-27 | 1986-03-27 | Hose construction |
US07/446,501 USRE33412E (en) | 1986-03-27 | 1989-12-05 | Hose construction |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/845,142 Reissue US4706712A (en) | 1986-03-27 | 1986-03-27 | Hose construction |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE33412E true USRE33412E (en) | 1990-10-30 |
Family
ID=27034645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/446,501 Expired - Lifetime USRE33412E (en) | 1986-03-27 | 1989-12-05 | Hose construction |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE33412E (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765599A (en) * | 1991-02-14 | 1998-06-16 | Alfa Laval Agri International Ab | Elastic milking machine hose |
US6390140B2 (en) * | 2000-02-16 | 2002-05-21 | Tokai Rubber Industries, Ltd. | Fluid-impermeable composite hose |
US20080000540A1 (en) * | 2004-11-25 | 2008-01-03 | Veritas Ag | Flexible Hose |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB645567A (en) * | 1948-10-05 | 1950-11-01 | Automotive Prod Co Ltd | Improvements in or relating to hose pipes |
US3047026A (en) * | 1959-09-23 | 1962-07-31 | Acme Hamilton Mfg Corp | Flexible hose |
GB991542A (en) * | 1960-10-29 | 1965-05-12 | David Moseley & Sons Ltd | Improvements relating to flexible suction and discharge hose |
US3416982A (en) * | 1961-09-05 | 1968-12-17 | Petzetakis Aristovoulos George | Method of forming a reinforced seamless tubular element |
US3447571A (en) * | 1966-06-08 | 1969-06-03 | Gen Etablissements Michelin Ra | Hose for pumping slurries |
US3528457A (en) * | 1967-08-11 | 1970-09-15 | Dunlop Co Ltd | Hose |
GB1320508A (en) * | 1970-06-18 | 1973-06-13 | Dunlop Holdings Ltd | Hose pipes |
US3766949A (en) * | 1969-12-19 | 1973-10-23 | Kleber Colombes | Hoses |
-
1989
- 1989-12-05 US US07/446,501 patent/USRE33412E/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB645567A (en) * | 1948-10-05 | 1950-11-01 | Automotive Prod Co Ltd | Improvements in or relating to hose pipes |
US3047026A (en) * | 1959-09-23 | 1962-07-31 | Acme Hamilton Mfg Corp | Flexible hose |
GB991542A (en) * | 1960-10-29 | 1965-05-12 | David Moseley & Sons Ltd | Improvements relating to flexible suction and discharge hose |
US3416982A (en) * | 1961-09-05 | 1968-12-17 | Petzetakis Aristovoulos George | Method of forming a reinforced seamless tubular element |
US3447571A (en) * | 1966-06-08 | 1969-06-03 | Gen Etablissements Michelin Ra | Hose for pumping slurries |
US3528457A (en) * | 1967-08-11 | 1970-09-15 | Dunlop Co Ltd | Hose |
US3766949A (en) * | 1969-12-19 | 1973-10-23 | Kleber Colombes | Hoses |
GB1320508A (en) * | 1970-06-18 | 1973-06-13 | Dunlop Holdings Ltd | Hose pipes |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765599A (en) * | 1991-02-14 | 1998-06-16 | Alfa Laval Agri International Ab | Elastic milking machine hose |
US6390140B2 (en) * | 2000-02-16 | 2002-05-21 | Tokai Rubber Industries, Ltd. | Fluid-impermeable composite hose |
US20080000540A1 (en) * | 2004-11-25 | 2008-01-03 | Veritas Ag | Flexible Hose |
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AS | Assignment |
Owner name: PARKER HANNIFIN CUSTOMER SUPPORT INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PARKER-HANNIFIN CORPORATION;REEL/FRAME:014051/0528 Effective date: 20030331 |
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AS | Assignment |
Owner name: PARKER INTANGIBLES LLC, OHIO Free format text: MERGER;ASSIGNOR:PARKER HANNIFIN CUSTOMER SUPPORT INC.;REEL/FRAME:015215/0522 Effective date: 20030630 |