US3566924A - Pressure-resistant fiber reinforced hose - Google Patents
Pressure-resistant fiber reinforced hose Download PDFInfo
- Publication number
- US3566924A US3566924A US788508A US3566924DA US3566924A US 3566924 A US3566924 A US 3566924A US 788508 A US788508 A US 788508A US 3566924D A US3566924D A US 3566924DA US 3566924 A US3566924 A US 3566924A
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- US
- United States
- Prior art keywords
- insert
- reinforcing
- hose
- inserts
- wound
- 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
Links
- 239000000835 fiber Substances 0.000 title description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 64
- 239000004753 textile Substances 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 43
- 239000011295 pitch Substances 0.000 description 25
- 230000002787 reinforcement Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
-
- 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
-
- 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
- F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
Definitions
- a pressure-resistant hose particularly for deep drilling, comprises spaced oppositely helically wound rein- HOSE forcing inserts whose pitch measured from a plane perpen- 5 clalmss Drawing Figs dicular to the axis of the hose, increases radially outwardly U.S. Cl 138/130, from insert to insert, for example, 65 for the innermost,
- the present invention relates'to a pressure-resistant fiber reinforced hose used primarily in deep drilling.
- the hoses used in deep drilling are produced in their known form from a rubber tube surrounded by eventually prevulcanized rubberized textile layers, these textile layers being surrounded by wound metal wire or cable filaments, an intermediary textile layer with reinforcing insert or inserts and finally covered with protective textile and rubber layers.
- the subsequent reinforcing metal wire inserts are usually wound with the same pitch, but each insert is wound in opposite direction.
- the pressure in the hose is borne mainly by the reinforcing inserts which are therefore subject to high stresses.
- the forces along the axes and tangents of the inserts vary in each insert because of the difference in the coil radii.
- the tangential force is also different for each reinforcing coil, since each insert is placed over a different diameter.
- the object of the present invention is to produce hoses in which the strength of the reinforcements can be utilized uniformally and nearly equally under high pressure with full operational safety for a long period of time.
- the object of the present invention is further to provide a pressure resistant fiber reinforced hoses whereby the strength of the reinforcing inserts is utilized to nearly 100 percent and the space requirement of the embedding textile layers is decreased in order to improve the pressure resistance of the hose without the application of more reinforcement, the cooperation of the reinforcing inserts is ensured for any pressure arising in the hose, and in addition the weight and wall thickness of the hose are reduced and its elasticity is improved.
- a hose in which the reinforcing insert material of the hose is divided into three or more, but preferably an uneven number of layers and said layers are wound up starting from the inside of the hose with pitches increasing from layer to layer from 6 to 50.
- two embedding textile layers are wound around the rubber tube, above which an auxiliary reinforcing insert of metal wire is wound with a pitch between 6 and 5, this is covered by an intermediary textile layer, over which a reinforcing insert is wound in the same direction as the auxiliary insert with pitches between 25 and 32, this is followed by a second intermediary textile layer and finally by a metal wire reinforcement wound in opposite direction to the first two reinforcements with pitches between 38 and 45 and the hose is coated in the usual manner.
- the invention may be implemented by applying over the rubber tube and maximum two embedding textile layers an auxiliary reinforcing insert wound with pitches between 6 and 5, above this a textile layer and again a reinforcing insert would in the same direction as the auxiliary reinforcement, but with pitches between 20 and covering this with a textile layer over which a second reinforcing insert is wound with pitches between 25 and in a direction opposite to the first two reinforcements, followed by a third reinforcing insert wound with pitches between 35 and and a fourth reinforcing insert wound with pitches between 40 and and by finally covering the hose in the usual manner.
- the hose according to the present invention was constructed in accordance with the concept that a hose can be in stress equilibrium only if the tangential pressure resistance of an insert or inserts wound in one direction isin equilibrium with the axial pressure resistance of an insert or inserts wound in opposite direction and vice versa, that is H a2 and l2 al where I P, is the tangential pressure resistance and P the axial pressure resistance.
- the basic condition for the cooperation and equal stress conditions of the inserts is the equality of the longitudinal relative changes of the inserts, that is, of the longitudinal forces arising in the inserts, since the ends of the hose and thus of the inserts are fixed by some rigid terminals.
- an auxiliary insert is applied in addition to the pair or pairs of inserts; the tangential and axial pressure resistance of this auxiliary insert supplements the corresponding pressure resistance of the other inserts.
- This auxiliary insert is wound under the first reinforcing insert in the same direction as the latter.
- This auxiliary insert has practically only a tangential pressure resistance, that is it is wound with a very low pitch, but ties the rubber hose with its minimum, not more than two layers textile covering firmly down and is useful for the circular embedding of the two or more reinforcing inserts.
- the third insert of preferably a single filament wound with a very low pitch on the rubber tube or on the not more than two textile layers covering the rubber tube serves as a rigid embedding for the winding of the strong insert layers which eliminates the bulky textile embedding of several layers used hitherto.
- the main reinforcing inserts are situated on a smaller diameter which reduces the-quantity needed of the reinforcing insert material while the pressure resistance of the inserts increases.
- the third auxiliary insert participates fully in the pressure resistance and pressure symmetry of the hose and in addition is capable of adjusting itself fully to the equal stress conditions of the main inserts.
- FIG. 1 is a longitudinal section of a hose of known construction with two inserts
- FIG. 2 is a longitudinal section of a hose with 2+1 inserts produced according to the present invention.
- FIG. 3 is a longitudinal section of a hose with 4+] inserts according to the invention.
- the hose shown in FIG. 1 consists of a rubber tube 1, several rubberized textile embedding layers 2, a first reinforcing insert 3, a rubberized textile layer 4 between the reinforcements, a second reinforcing insert 5, protective rubberized textile layer 6 and a covering rubber layer 7.
- FIG. 2 the reference numerals stand for the same types of components, with the exception that here a single embedding textile layer 2 was used with an auxiliary reinforcing insert 8 above it and an embedding rubberized textile layer 9 above the insert 8.
- the hose in FIG. 3 consists of a rubber tube 1, embedding textile layers 2, reinforcing inserts 3a and 3b and 5a and 5b, textile layers 4a, 4b and 40 between the reinforcing inserts, auxiliary reinforcing insert 8 with embedding textile layer 9 above it, rubberized protective textile layer 6 and covering layer 7.
- One hose according to FIG. 2 of the present invention was constructed of the following layers:
- Second reinforcing layer (cable) 2.8 mm.
- the mean diameter D of the three inserts and the pitches ,8 of the inserts were as follows:
- the calculated pressure resistance of the hose is 898 kp/cm. while the hose made of the same materials but in the customary form by the known method, thus without auxiliary insert, by winding the two reinforcing insert with a pitch of 3516 and by applying over the rubber tube four textile layers for embedding broke down at 680 kp/cm. internal pressure.
- a pressure-resistant hose comprising a rubber tube with multilayered embedding and intermediary textile layers and reinforcing inserts and a covering rubber coat, comprising at least two helically wound reinforcing inserts having a pitch increasing from the axis of the hose towards the covering coat from layer to layer, as measured from a plane perpendicular to the axis of the hose, in such a way that the reinforcing inserts satisfy the formulas:
- Pa is the axial pressure resistance of a second insert wound in the opposite direction
- P2 is the tangential pressure resistance of said second insert
- Pa2 is the axial pressure resistance of said first insert.
- Hose according to claim 1 wherein the pitch of the first reinforcing insert is between 25 and 32 and the pitch of the second reinforcing insert is between 38 and 45 as measured from a lane perpendicular to the axis of the hose.
- a ose according to claim 1, comprising four reinforcing inserts, wherein the first reinforcing insert has a pitch between 20 and 30, the second reinforcing insert is wound in opposite direction with a pitch between 25 and 35, the third reinforcing insert is wound in the same direction as the first reinforcing insert with a pitch between 35 and AS", and the founh reinforcing insert is wound in the same direction as the second reinforcing insert with a pitch between 40 and 50.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
A pressure-resistant hose, particularly for deep drilling, comprises spaced oppositely helically wound reinforcing inserts whose pitch, measured from a plane perpendicular to the axis of the hose, increases radially outwardly from insert to insert, for example, 6''-5* for the innermost, 25-32* for the next, and 3845* for the next outer layer.
Description
United States Patent PRESSURE-RESISTANT FIBER REINFORCED [51] Int. Cl Fl6l 11/08 [50] Field of Search 138/129, 130,131-134,137-139,143,144,153
References Cited UNITED STATES PATENTS 3,212,528 10/1965 Haas Primary Examiner-Louis K. Rimrodt Attorney-Young & Thompson ABSTRACT: A pressure-resistant hose, particularly for deep drilling, comprises spaced oppositely helically wound rein- HOSE forcing inserts whose pitch measured from a plane perpen- 5 clalmss Drawing Figs dicular to the axis of the hose, increases radially outwardly U.S. Cl 138/130, from insert to insert, for example, 65 for the innermost,
138/153 25 -32 for the next, and 3845 for the next outer layer.
PATENTEUHAR 2mm 3566.924
SHEET 1 BF 2 Fig.1 5
PRIOR ART I 7 7 INVENTORS 84m) of A4461? us #4 m; w 72-7. Ek/
ATTORNEYS PATENTED mm mm 3,566,924
The hoses used in deep drilling are produced in their known form from a rubber tube surrounded by eventually prevulcanized rubberized textile layers, these textile layers being surrounded by wound metal wire or cable filaments, an intermediary textile layer with reinforcing insert or inserts and finally covered with protective textile and rubber layers. The subsequent reinforcing metal wire inserts are usually wound with the same pitch, but each insert is wound in opposite direction.
The pressure in the hose is borne mainly by the reinforcing inserts which are therefore subject to high stresses. The forces along the axes and tangents of the inserts vary in each insert because of the difference in the coil radii.
Under the influence of the different'axial and tangential forces the inserts will show different elongation causing a shift in the relative positions of the turns of the inserted coils and the textile and rubber materials between the turns will suffer such high strains that they will break in a relatively short time under the loads and deloadings', that is under fatigue stress.
The tangential force is also different for each reinforcing coil, since each insert is placed over a different diameter.
Under the effect of the different tangential and axial forces the reinforcing coils will suffer a relative torsion causing a further increase of the strain on the textile and rubber layers between the coils thus accelerating their breakdown.
Since the ends of the hoses are fixed, the different elongations and torsions of the reinforcing insert coils hamper the cooperation between the reinforcing coils. Lack ofcooperation and the different force effects in the fibers of the reinforcing insert coil result in loads much below their tensile strength on the filaments of some insert coils, while the filaments of some other insert coils would be loaded above their tensile strength and would break. Once one of the insert coils is broken the load on the other coils will rise suddenly leading to more breaks and the final break down of the hose.
To avoid this type of failure considerably more reinforcement is built into the hoses of known constructions than would be theoretically necessary when every insert coil filament were subjected to the same load below its tensile strength. As a result the known hose constructions are relatively heavy, expensive and rigid.
The object of the present invention is to produce hoses in which the strength of the reinforcements can be utilized uniformally and nearly equally under high pressure with full operational safety for a long period of time.
The object of the present invention is further to provide a pressure resistant fiber reinforced hoses whereby the strength of the reinforcing inserts is utilized to nearly 100 percent and the space requirement of the embedding textile layers is decreased in order to improve the pressure resistance of the hose without the application of more reinforcement, the cooperation of the reinforcing inserts is ensured for any pressure arising in the hose, and in addition the weight and wall thickness of the hose are reduced and its elasticity is improved.
According to the present invention these object is achieved by forming a hose in which the reinforcing insert material of the hose is divided into three or more, but preferably an uneven number of layers and said layers are wound up starting from the inside of the hose with pitches increasing from layer to layer from 6 to 50. 1
According to one advantageous variation of the present invention two embedding textile layers are wound around the rubber tube, above which an auxiliary reinforcing insert of metal wire is wound with a pitch between 6 and 5, this is covered by an intermediary textile layer, over which a reinforcing insert is wound in the same direction as the auxiliary insert with pitches between 25 and 32, this is followed by a second intermediary textile layer and finally by a metal wire reinforcement wound in opposite direction to the first two reinforcements with pitches between 38 and 45 and the hose is coated in the usual manner.
According to another advantageous variation the invention may be implemented by applying over the rubber tube and maximum two embedding textile layers an auxiliary reinforcing insert wound with pitches between 6 and 5, above this a textile layer and again a reinforcing insert would in the same direction as the auxiliary reinforcement, but with pitches between 20 and covering this with a textile layer over whicha second reinforcing insert is wound with pitches between 25 and in a direction opposite to the first two reinforcements, followed by a third reinforcing insert wound with pitches between 35 and and a fourth reinforcing insert wound with pitches between 40 and and by finally covering the hose in the usual manner. I
The hose according to the present invention was constructed in accordance with the concept that a hose can be in stress equilibrium only if the tangential pressure resistance of an insert or inserts wound in one direction isin equilibrium with the axial pressure resistance of an insert or inserts wound in opposite direction and vice versa, that is H a2 and l2 al where I P, is the tangential pressure resistance and P the axial pressure resistance.
The basic condition for the cooperation and equal stress conditions of the inserts is the equality of the longitudinal relative changes of the inserts, that is, of the longitudinal forces arising in the inserts, since the ends of the hose and thus of the inserts are fixed by some rigid terminals.
From the relative diameter changes of inserts with two different diameters in a pair of inserts ideal B, and B pitches can be determined for each insert which will ensure that the two inserts shall be in nearly identical stress conditions at any arbitrary internal pressure and shall be capable of cooperation. The winding angle of the insert is determined from the changes in length and diameter of the fiber due to its elongation.
To realize perfect stress symmetry, that is fully equal stresses on the inserts in accordance with the present invention an auxiliary insert is applied in addition to the pair or pairs of inserts; the tangential and axial pressure resistance of this auxiliary insert supplements the corresponding pressure resistance of the other inserts. This auxiliary insert is wound under the first reinforcing insert in the same direction as the latter.
This auxiliary insert has practically only a tangential pressure resistance, that is it is wound with a very low pitch, but ties the rubber hose with its minimum, not more than two layers textile covering firmly down and is useful for the circular embedding of the two or more reinforcing inserts.
The more essential advantages of the invention are the following:
It ensures the equal stress of an insert system consisting of .three or more uneven number of inserts; it enhances the strength of the reinforcement in a measure hitherto not observed.
The third insert of preferably a single filament wound with a very low pitch on the rubber tube or on the not more than two textile layers covering the rubber tube serves as a rigid embedding for the winding of the strong insert layers which eliminates the bulky textile embedding of several layers used hitherto. The main reinforcing inserts are situated on a smaller diameter which reduces the-quantity needed of the reinforcing insert material while the pressure resistance of the inserts increases.
The third auxiliary insert participates fully in the pressure resistance and pressure symmetry of the hose and in addition is capable of adjusting itself fully to the equal stress conditions of the main inserts.
The invention will be further described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a longitudinal section of a hose of known construction with two inserts;
FIG. 2 is a longitudinal section of a hose with 2+1 inserts produced according to the present invention; and
FIG. 3 is a longitudinal section of a hose with 4+] inserts according to the invention.
The hose shown in FIG. 1 consists of a rubber tube 1, several rubberized textile embedding layers 2, a first reinforcing insert 3, a rubberized textile layer 4 between the reinforcements, a second reinforcing insert 5, protective rubberized textile layer 6 and a covering rubber layer 7.
In FIG. 2 the reference numerals stand for the same types of components, with the exception that here a single embedding textile layer 2 was used with an auxiliary reinforcing insert 8 above it and an embedding rubberized textile layer 9 above the insert 8.
The hose in FIG. 3 consists of a rubber tube 1, embedding textile layers 2, reinforcing inserts 3a and 3b and 5a and 5b, textile layers 4a, 4b and 40 between the reinforcing inserts, auxiliary reinforcing insert 8 with embedding textile layer 9 above it, rubberized protective textile layer 6 and covering layer 7.
One hose according to FIG. 2 of the present invention was constructed of the following layers:
Rubber tire 4.0 mm.
One layer rubberized textile 0.5 mm. Auxiliary insert 0.9 mm.
Textile layer between inserts 0.5 mm. First reinforcing insert (cable) 2.8 mm. Textile layer between inserts 0.5 mm.
Second reinforcing layer (cable) 2.8 mm.
Two rubberized textile protective layers 2.0 mm.
Outer protective rubber layer 20 mm.
The mean diameter D of the three inserts and the pitches ,8 of the inserts were as follows:
Auxiliary insert D 8.59 cm. B
First reinforcing insert D 9.06 cm. ,8 3.0-55
Second reinforcing insert D 9.72 cm. 5 41 -4 5? I AS will be seen from a comparison of the layers 8 and 3 in FIG. 2 (and 8 and 3a in FIG. 3) the recited pitch angles are measured from planes perpendicular to the axis of the hose.
With this construction the calculated pressure resistance of the hose is 898 kp/cm. while the hose made of the same materials but in the customary form by the known method, thus without auxiliary insert, by winding the two reinforcing insert with a pitch of 3516 and by applying over the rubber tube four textile layers for embedding broke down at 680 kp/cm. internal pressure.
Iclaim:
l. A pressure-resistant hose comprising a rubber tube with multilayered embedding and intermediary textile layers and reinforcing inserts and a covering rubber coat, comprising at least two helically wound reinforcing inserts having a pitch increasing from the axis of the hose towards the covering coat from layer to layer, as measured from a plane perpendicular to the axis of the hose, in such a way that the reinforcing inserts satisfy the formulas:
Pt Pa and Pt Pa wherein Pt,- is the tangential pressure resistance of a first insert wound in one direction;
Pa is the axial pressure resistance of a second insert wound in the opposite direction;
P2 is the tangential pressure resistance of said second insert; and
Pa2 is the axial pressure resistance of said first insert.
2. I-Iose according to claim 1, and an auxiliary reinforcing insert wound helically under the reinforcing inserts with a pitch between 6' and 5 as measured from a plane perpendicular to the axis of the hose.
3. Hose according to claim 1, wherein the pitch of the first reinforcing insert is between 25 and 32 and the pitch of the second reinforcing insert is between 38 and 45 as measured from a lane perpendicular to the axis of the hose.
4. A ose according to claim 1, comprising four reinforcing inserts, wherein the first reinforcing insert has a pitch between 20 and 30, the second reinforcing insert is wound in opposite direction with a pitch between 25 and 35, the third reinforcing insert is wound in the same direction as the first reinforcing insert with a pitch between 35 and AS", and the founh reinforcing insert is wound in the same direction as the second reinforcing insert with a pitch between 40 and 50.
5. A hose according to claim I wherein the reinforcing inserts are metal wires.
Claims (5)
1. A pressure-resistant hose comprising a rubber tube with multilayered embedding and intermediary textile layers and reinforcing inserts and a covering rubber coat, comprising at least two helically wound reinforcing inserts having a pitch increasing from the axis of the hose towards the covering coat from layer to layer, as measured from a plane perpendicular to the axis of the hose, in such a way that the reinforcing inserts satisfy the formulas: Pt1 Pa2 and Pt2 Pa1 wherein Pt1 is the tangential pressure resistance of a first insert wound in one direction; Pa2 is the axial pressure resistance of a second insert wound in the opposite direction; Pt2 is the tangential pressure resistance of said second insert; and Pa2 is the axial pressure resistance of said first insert.
2. Hose according to claim 1, and an auxiliary reinforcing insert wound helically under the reinforcing inserts with a pitch between 6'' and 5* as measured from a plane perpendicular to the axis of the hose.
3. Hose according to claim 1, wherein the pitch of the first reinforcing insert is between 25 and 32* and the pitch of the second reinforcing insert is between 38 and 45* as measured from a plane perpendicular to the axis of the hose.
4. A hose according to claim 1, comprising four reinforcing inserts, wherein the first reinforcing insert has a pitch between 20 and 30*, the second reinforcing insert is wound in opposite direction with a pitch between 25 and 35*, the third reinforcing insert is wound in the same direction as the first reinforcing insert, with a pitch between 35 and 45*, and the fourth reinforcing insert is wound in the same direction as the second reinforcing insert with a pitch between 40 and 50*.
5. A hose according to claim 1 wherein the reinforcing inserts are metal wires.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUAU000189 | 1968-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3566924A true US3566924A (en) | 1971-03-02 |
Family
ID=10993167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US788508A Expired - Lifetime US3566924A (en) | 1968-01-09 | 1969-01-02 | Pressure-resistant fiber reinforced hose |
Country Status (6)
Country | Link |
---|---|
US (1) | US3566924A (en) |
AT (1) | AT307839B (en) |
GB (1) | GB1258268A (en) |
NL (1) | NL6900299A (en) |
RO (1) | RO58501A (en) |
SU (1) | SU504467A3 (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3729028A (en) * | 1971-06-10 | 1973-04-24 | Orszagos Gumiipari Vallalat | Flexible high-strength wire-reinforced rubber hoses |
US4353581A (en) * | 1980-11-28 | 1982-10-12 | The Goodyear Tire & Rubber Company | Hose coupling |
US4605466A (en) * | 1980-11-28 | 1986-08-12 | The Goodyear Tire & Rubber Company | Hose coupling method |
US4693281A (en) * | 1985-09-23 | 1987-09-15 | Ga Technologies Inc. | Variable modulus filament wound pressure tube |
US4860798A (en) * | 1985-09-25 | 1989-08-29 | Taurus Gumiipari Vallalat | Reinforced flexible hose |
US5351752A (en) * | 1992-06-30 | 1994-10-04 | Exoko, Incorporated (Wood) | Artificial lifting system |
EP0740098A1 (en) * | 1995-04-28 | 1996-10-30 | The Yokohama Rubber Co., Ltd. | Reinforced pressure hose |
EP0969236A2 (en) | 1998-06-29 | 2000-01-05 | Parker Hannifin GmbH | Kink resistant high pressure hose |
US6109306A (en) * | 1998-06-29 | 2000-08-29 | Parker Hannifin Gmbh | Kink-resistant, high pressure hose construction having a composite, spiral wound innermost reinforcement layer |
US6390141B1 (en) | 1998-12-21 | 2002-05-21 | Parker-Hannifin Corporation | Collapse-resistant hose construction |
US6742545B2 (en) | 1998-12-21 | 2004-06-01 | Parker-Hannifin Corporation | Hose construction |
US20040134555A1 (en) * | 2002-11-26 | 2004-07-15 | Powell Steven M. | Tubular polymeric composites for tubing and hose constructions |
US20050241716A1 (en) * | 2004-04-07 | 2005-11-03 | Tibor Nagy | High-pressure hose comprising several layers of reinforcing plies |
US20060280889A1 (en) * | 2005-06-10 | 2006-12-14 | Powell Steven M | Tubular nylon alloy members for tubing and hose constructions |
US20060285175A1 (en) * | 2005-06-17 | 2006-12-21 | Kuo-Kuang Wu | Scanner for penetrative documents |
US20060285973A1 (en) * | 2005-06-17 | 2006-12-21 | Siemens Westinghouse Power Corporation | Trailing edge attachment for composite airfoil |
US20070034275A1 (en) * | 2005-08-15 | 2007-02-15 | Henry Ty A | Reinforced hose |
US20110068572A1 (en) * | 2009-09-23 | 2011-03-24 | Contitech Rubber Industrial Gumiipari Kft | Swaged coupling for high-pressure hose, high-pressure hose with swaged coupling, and method for making the same |
CN106761441A (en) * | 2016-12-16 | 2017-05-31 | 席小平 | A kind of carbon-fiber continuous rod of the wear-resisting anti-splitting of shearing resistance |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2553859B1 (en) * | 1983-10-24 | 1986-08-01 | Coflexip | FLEXIBLE TUBULAR PIPING IN PARTICULAR FOR THE OIL INDUSTRY |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3212528A (en) * | 1964-02-13 | 1965-10-19 | Goodrich Co B F | Hose |
-
1968
- 1968-12-17 AT AT1226568A patent/AT307839B/en not_active IP Right Cessation
- 1968-12-31 GB GB1258268D patent/GB1258268A/en not_active Expired
-
1969
- 1969-01-02 SU SU691293485A patent/SU504467A3/en active
- 1969-01-02 US US788508A patent/US3566924A/en not_active Expired - Lifetime
- 1969-01-08 NL NL6900299A patent/NL6900299A/xx unknown
- 1969-01-09 RO RO58519A patent/RO58501A/ro unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3212528A (en) * | 1964-02-13 | 1965-10-19 | Goodrich Co B F | Hose |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3729028A (en) * | 1971-06-10 | 1973-04-24 | Orszagos Gumiipari Vallalat | Flexible high-strength wire-reinforced rubber hoses |
US4353581A (en) * | 1980-11-28 | 1982-10-12 | The Goodyear Tire & Rubber Company | Hose coupling |
US4605466A (en) * | 1980-11-28 | 1986-08-12 | The Goodyear Tire & Rubber Company | Hose coupling method |
US4693281A (en) * | 1985-09-23 | 1987-09-15 | Ga Technologies Inc. | Variable modulus filament wound pressure tube |
US4860798A (en) * | 1985-09-25 | 1989-08-29 | Taurus Gumiipari Vallalat | Reinforced flexible hose |
US5351752A (en) * | 1992-06-30 | 1994-10-04 | Exoko, Incorporated (Wood) | Artificial lifting system |
EP0740098A1 (en) * | 1995-04-28 | 1996-10-30 | The Yokohama Rubber Co., Ltd. | Reinforced pressure hose |
EP0969236A2 (en) | 1998-06-29 | 2000-01-05 | Parker Hannifin GmbH | Kink resistant high pressure hose |
US6109306A (en) * | 1998-06-29 | 2000-08-29 | Parker Hannifin Gmbh | Kink-resistant, high pressure hose construction having a composite, spiral wound innermost reinforcement layer |
US6390141B1 (en) | 1998-12-21 | 2002-05-21 | Parker-Hannifin Corporation | Collapse-resistant hose construction |
US6742545B2 (en) | 1998-12-21 | 2004-06-01 | Parker-Hannifin Corporation | Hose construction |
US20040134555A1 (en) * | 2002-11-26 | 2004-07-15 | Powell Steven M. | Tubular polymeric composites for tubing and hose constructions |
US20050241716A1 (en) * | 2004-04-07 | 2005-11-03 | Tibor Nagy | High-pressure hose comprising several layers of reinforcing plies |
US7143789B2 (en) * | 2004-04-07 | 2006-12-05 | Phoenix Rubber Gumiipari Kft. | High-pressure hose comprising several layers of reinforcing plies |
US20060280889A1 (en) * | 2005-06-10 | 2006-12-14 | Powell Steven M | Tubular nylon alloy members for tubing and hose constructions |
US20060285175A1 (en) * | 2005-06-17 | 2006-12-21 | Kuo-Kuang Wu | Scanner for penetrative documents |
US20060285973A1 (en) * | 2005-06-17 | 2006-12-21 | Siemens Westinghouse Power Corporation | Trailing edge attachment for composite airfoil |
US20070034275A1 (en) * | 2005-08-15 | 2007-02-15 | Henry Ty A | Reinforced hose |
US7328725B2 (en) * | 2005-08-15 | 2008-02-12 | Eaton Corporation | Reinforced hose |
US20110068572A1 (en) * | 2009-09-23 | 2011-03-24 | Contitech Rubber Industrial Gumiipari Kft | Swaged coupling for high-pressure hose, high-pressure hose with swaged coupling, and method for making the same |
CN106761441A (en) * | 2016-12-16 | 2017-05-31 | 席小平 | A kind of carbon-fiber continuous rod of the wear-resisting anti-splitting of shearing resistance |
Also Published As
Publication number | Publication date |
---|---|
NL6900299A (en) | 1969-07-11 |
GB1258268A (en) | 1971-12-30 |
SU504467A3 (en) | 1976-02-25 |
AT307839B (en) | 1973-06-12 |
RO58501A (en) | 1975-09-15 |
DE1815507B2 (en) | 1975-08-21 |
DE1815507A1 (en) | 1969-10-16 |
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