US3095644A - Method for attaching overlapped members - Google Patents
Method for attaching overlapped members Download PDFInfo
- Publication number
- US3095644A US3095644A US726207A US72620758A US3095644A US 3095644 A US3095644 A US 3095644A US 726207 A US726207 A US 726207A US 72620758 A US72620758 A US 72620758A US 3095644 A US3095644 A US 3095644A
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- Prior art keywords
- nose
- members
- forming
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- tubular
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- Expired - Lifetime
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- 238000000034 method Methods 0.000 title claims description 16
- 210000001331 nose Anatomy 0.000 description 31
- 239000012768 molten material Substances 0.000 description 9
- 239000007769 metal material Substances 0.000 description 8
- 238000012216 screening Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- E21B17/14—Casing shoes for the protection of the bottom of the casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
-
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49888—Subsequently coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49993—Filling of opening
Definitions
- This invention relates to a method and means for attaching overlapping members and is particularly concerned with the joinder of overlapping and interfitted members, one of which is inserted in the bore of the *other, by a metallic ring disposed in coinciding grooves in the overlapped portions of the joined members, which ring is introduced in molten state and allowed to cool and harden therein to form an integral connection between themembers.
- This method of attaching overlapped and interfit-ted members has particular application to the joinder of 7 guide noses, screening noses, float shoes and the like to bore'is invariably crooked andirregular in contour and the weight of the casing imposes extreme impact jolts against the nose member, attached to the lower end of the casing as it strikes such irregular surtaces.
- Such nose 3,095,644 Patented July 2, 1963 2 which has integral parts holding the members against rotation.
- a still further object is to provide a connection between ovenlapped portions of cylindrical members which eliminates the need for welding or screw connections.
- FIGURE 1 is a sectionalized, elevational view of the lower end of a tubular member, such members are customarily attached to the lower end'section of easing by means of screws or pins inserted through the casing and a telescoped flange on the nose member, or by means of welding.
- Much ditficul-ty has been encountered by reason of the screws or welding being broken by impact shock. It is often diflicult to weld such shoes to the casing string because of the inaccessible position of the joints.
- the attaching flange thereof is often inserted some distance into the end casing section where it is not easily accessible for welding or other attachment.
- the improvement constituting the subject matter of invention provides a secure connection between the guide nose, screening nose or float shoe, and the lower casing section, so that it is not easily broken by impact shock I and so that such member will not become disengaged from the casing and rotate relative thereto when it is drilled up. It also provides a connection which is easy to apply and uniformly distributed between the joined members. It provides a joint which is stronger than either of the metallic members whichit joins so that such metallic members will break before the joint.
- FIGURE III is across-sectional plan "view taken on the line IIIIII of FIGURE 11.
- FIGURE IV is a cross-sectional view through the nose and tubular member illustrating the methodof; pouring molten metal through the holes in the side Wall of the tubular member to be distributed in the coinciding grooves in the nose and tubular section.
- FIG URE V is a cross-sectional, elevational view of the ,joined nose and tubular member after the molten, metallic material hasbeenapplied in the coinciding grooves and has become solidified therein to provide a joinder thercbetween.
- FIGURE V1 is a cross-sectional plan view taken on fthe line VI-VI of FIGURE- V.
- the numeral 1 indicates a tubular pipe section which may be attached to the lower end section of a casof steel.
- the member 1 is usually made
- the numeral 2 indicates a guide andscreening nose to be attached tothe lower end of the tubular section 1.
- the screening nose 2 is preferably made of aluminum alloy or other easily drillable material which :may be drilled up by the drill bit after the casing" string has been run and set by cementing it to the wall of the well bore.
- An annular groove 3 is formed'on the inner side of the lower end of the tubular section 1, and an external annular groove 4 is formed on the outer side of the reduced extension 5 of the screening nose 2.
- a tapered surface 6 is provided aboutthe lower end of the tubular section 1 which is complementary to a tapered'surface 7 onthe guide shoe 2.
- the guide and screening shoe 2 includes an outer conical surface 8 which has apertures 9 through the wall thereof so that well fluid may circulate through such apertures from and to the casing to permit the casing to be floated into a solumn of fluid in the well bore.
- the reduced extension 5 is press fitted into the lower end of the tubular section 1 so that the grooves 3 and 4 are in coinciding relationship when the shoulders 6 and 7 are engaged as shown in FIGURE II.
- a plurality of holes 10 are then drilled through the Wall of the tubular section 1, at spaced intervals thereabout, to communicate with the coinciding grooves 3 and 4. At the same time that holes 10 are drilled, recesses 11 are formed by the drill in the bottom of the groove 4.
- the assembled tubular section 1 and shoe 2 are placed upon a suitable jig (not shown) in horizontal position.
- Molten metal indicated at 12 is then poured from a receptacle 13 into a hole 10 which faces upwardly.
- the molten metal flows downwardly into the lower side of the coinciding grooves as shown in FIGURE IV.
- Stoppers 14 are placed in the holes 10 at the side and on the bottom of the assembly in order to retain the molten metal in the channel formed by the coinciding grooves 3 and 4.
- the material of the metal ring 15 2 also flows intothe recesses 11, providing integral pin connections, indicated at 17, between the shoe 2 and the ring 15.
- the pins 17 support and provide anchors between the ring and the shoe 2 to prevent the shoe from breaking loose from the ring under torque.
- the molten material 12 should preferably be of aluminum alloy so that it is also easily drillable. However, it will be understood that any type of molten metallic material could be employed to form the ring 15. Furthermore it is not necessary that the nose 2 be made of aluminum alloy.
- the joined members may be of any metallic material which would integrally join with the metallic ring when it is cooled and solidified.
- a method of joining overlapped members comprising the steps of: Forming an annular groove on the inner side of the hollow bore of one member; forming an annular groove about the outer surface of the other member; inserting the second named member in the bore of the first named member in position so that the grooves coincide; forming a plurality of holes at approximately equally spaced intervals through the wall of the first named member to communicate with the grooves; introducing molten metallic material through said holes into the grooves, allowing the molten material to cool and solidify to form an integral metallurgical bond between the members; and filling the portions of the holes which are not filled with the molten material with welding material after the m ten material has cooled and solidified.
- the method of joining a hollow nOSe member of aluminum alloy to a tubular aluminum alloy member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; inserting the reduced extension into the tubular member in position so that the grooves coincide; forming a plurality of holes spaced at approximately equally spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
- the method of joining a hollow nose member to a tubular member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; inserting the reduced extension with a pressed fit into the tubular member in position so that the grooves coincide; forming a plurality of holes spaced at approximately equall spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
- the method of joining a hollow nose member to a tubular member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; forming complementary beveled shoulders on the end of the tubular member and on the end of the nose member; inserting the reduced extension into the tubular member in position so that the grooves coincide and the beveled shoulders are in contact; forming a plurality of holes at approximately equally spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Forging (AREA)
Description
July 2, 1963 J. CURRY METHOD FOR ATTACHING OVERLAPPED MEMBERS Filed April 3, 1958 John L. Curry ATTORNEYS United States Patent 3,095,644 METHOD FOR ATTACHING OVERLAPPED MEMBERS 7 John L. Curry, Fort Worth, Tex., assignor to Rector Well Equipment Company, Inc., Fort Worth, Tex., a corporation of Texas Filed Apr. 3, 1958, Ser. No. 726,207 5 Claims. (Cl. 29-527) This invention relates to a method and means for attaching overlapping members and is particularly concerned with the joinder of overlapping and interfitted members, one of which is inserted in the bore of the *other, by a metallic ring disposed in coinciding grooves in the overlapped portions of the joined members, which ring is introduced in molten state and allowed to cool and harden therein to form an integral connection between themembers.
This method of attaching overlapped and interfit-ted members has particular application to the joinder of 7 guide noses, screening noses, float shoes and the like to bore'is invariably crooked andirregular in contour and the weight of the casing imposes extreme impact jolts against the nose member, attached to the lower end of the casing as it strikes such irregular surtaces. Such nose 3,095,644 Patented July 2, 1963 2 which has integral parts holding the members against rotation.
A still further object is to provide a connection between ovenlapped portions of cylindrical members which eliminates the need for welding or screw connections.
Other and further objects of the invention will become apparent upon reading the detailed specification hereinafter following, and by referring to the drawing annexed hereto. I
Although the description and illustration of the method and means hereinafter described is particularly concerned with connection between a tubular casing section and a screening or guide nose used in well cementing or treating operations, it will be understood that such is merely illustrative and is not intended to confine-the use of the method to the particular disclosure. It will be obvious that such method can be used to join-any two overlapping and interfitting cylindrical elements and would be advantageous in the joinder of any two overlapped'members wherein one member is inserted in a bore provided in the other member.
For instance it could be employed to connect two tubular par-ts wherein one part is inserted in the bore of the other, or it could be employed to connect a solid cylindrical member inserted in the bore of a tubular member or "a recess formed in the end of another solid member.
, In the drawing FIGURE 1 is a sectionalized, elevational view of the lower end of a tubular member, such members are customarily attached to the lower end'section of easing by means of screws or pins inserted through the casing and a telescoped flange on the nose member, or by means of welding. Much ditficul-ty has been encountered by reason of the screws or welding being broken by impact shock. It is often diflicult to weld such shoes to the casing string because of the inaccessible position of the joints. In the case of a float shoethe attaching flange thereof is often inserted some distance into the end casing section where it is not easily accessible for welding or other attachment.
Another difficulty encountered in the attachment of such members to the lower casing section results from the fact that afiter the casing string is run and cemented in place, it is necessary to drill through the guide nose,
screening nose or'float shoe, in order to open up the producing formation. In many instances the nose member or fioatshoe becomes disengaged from the casing by reason of the rupture of the screws or welds holding them "thereto, causing such member to rotate with the drill bit so that it cannot be easily drilled up.
- The improvement constituting the subject matter of invention provides a secure connection between the guide nose, screening nose or float shoe, and the lower casing section, so that it is not easily broken by impact shock I and so that such member will not become disengaged from the casing and rotate relative thereto when it is drilled up. It also provides a connection which is easy to apply and uniformly distributed between the joined members. It provides a joint which is stronger than either of the metallic members whichit joins so that such metallic members will break before the joint.
It is therefore a primary object of the invention to provide a method and apparatus for securely connecting overlapping cylindrical members which will more securely hold the members together against longitudinah rbtational or lateral movement with reference to each other.
' as a casing section or a sub to be attached to the lower tubular member and screening nose after being telescoped and overlapped, and after holes have been drilled through the side wall ofthe tubular member to communicate with the-coinciding grooves in the overlapped portions. FIGURE III is across-sectional plan "view taken on the line IIIIII of FIGURE 11.
FIGURE IV is a cross-sectional view through the nose and tubular member illustrating the methodof; pouring molten metal through the holes in the side Wall of the tubular member to be distributed in the coinciding grooves in the nose and tubular section.
FIG URE V is a cross-sectional, elevational view of the ,joined nose and tubular member after the molten, metallic material hasbeenapplied in the coinciding grooves and has become solidified therein to provide a joinder thercbetween.
FIGURE V1 is a cross-sectional plan view taken on fthe line VI-VI of FIGURE- V.
In, the drawing numeral references are employed 'to designate the various parts shown, and like numerals designate like parts throughout the various figures of the drawing.
The numeral 1 indicates a tubular pipe section which may be attached to the lower end section of a casof steel.
ing or other pipe string. The member 1 is usually made The numeral 2 indicates a guide andscreening nose to be attached tothe lower end of the tubular section 1. The screening nose 2 is preferably made of aluminum alloy or other easily drillable material which :may be drilled up by the drill bit after the casing" string has been run and set by cementing it to the wall of the well bore. v j An annular groove 3 is formed'on the inner side of the lower end of the tubular section 1, and an external annular groove 4 is formed on the outer side of the reduced extension 5 of the screening nose 2. A tapered surface 6 is provided aboutthe lower end of the tubular section 1 which is complementary to a tapered'surface 7 onthe guide shoe 2.
The guide and screening shoe 2 includes an outer conical surface 8 which has apertures 9 through the wall thereof so that well fluid may circulate through such apertures from and to the casing to permit the casing to be floated into a solumn of fluid in the well bore.
After the tubular section 1 and guide nose 2 have been provided with the coinciding grooves 3 and 4, the reduced extension 5 is press fitted into the lower end of the tubular section 1 so that the grooves 3 and 4 are in coinciding relationship when the shoulders 6 and 7 are engaged as shown in FIGURE II.
A plurality of holes 10 are then drilled through the Wall of the tubular section 1, at spaced intervals thereabout, to communicate with the coinciding grooves 3 and 4. At the same time that holes 10 are drilled, recesses 11 are formed by the drill in the bottom of the groove 4.
After the holes 10 have been drilled and the recesses 11 have been so provided, the assembled tubular section 1 and shoe 2 are placed upon a suitable jig (not shown) in horizontal position. Molten metal, indicated at 12, is then poured from a receptacle 13 into a hole 10 which faces upwardly. The molten metal flows downwardly into the lower side of the coinciding grooves as shown in FIGURE IV. After a quantity of such molten metal has been poured through the upwardly facing hole 10 the joined tubular section 1 and nose 2 are rotated to bring another hole to the upper side. Stoppers 14 are placed in the holes 10 at the side and on the bottom of the assembly in order to retain the molten metal in the channel formed by the coinciding grooves 3 and 4. This procedure is repeated until the coinciding lgrooves 3 and 4 are tilled with molten material. The molten material is allowed to cool and solidify thereby providing a metallic ring 15 which is, in effect, integral with the tubular section 1 and shoe 2 forming an integral metallurgical bond between these members. When the stoppers 14 are removed the recesses left thereby may be filled with welding to completely fill the holes, as shown in FIGURE V.
It will be noted that the material of the metal ring 15 2 also flows intothe recesses 11, providing integral pin connections, indicated at 17, between the shoe 2 and the ring 15. The pins 17 support and provide anchors between the ring and the shoe 2 to prevent the shoe from breaking loose from the ring under torque.
It will thus be seen that there has been provided an integral ring joint between the joined members 1 and 2, thereby providing a connection which is not easily broken and which will positively prevent the shoe 2 from breaking loose and rotating with reference to the casing section 1, when it is drilled out.
The molten material 12 should preferably be of aluminum alloy so that it is also easily drillable. However, it will be understood that any type of molten metallic material could be employed to form the ring 15. Furthermore it is not necessary that the nose 2 be made of aluminum alloy. The joined members may be of any metallic material which would integrally join with the metallic ring when it is cooled and solidified.
I claim:
1. A method of joining overlapped members, at least one of which has a hollow bore, comprising the steps of: Forming an annular groove on the inner side of the hollow bore of one member; forming an annular groove about the outer surface of the other member; inserting the second named member in the bore of the first named member in position so that the grooves coincide; forming a plurality of holes at approximately equally spaced intervals through the wall of the first named member to communicate with the grooves; introducing molten metallic material through said holes into the grooves, allowing the molten material to cool and solidify to form an integral metallurgical bond between the members; and filling the portions of the holes which are not filled with the molten material with welding material after the m ten material has cooled and solidified.
2. The method of joining a hollow nOSe member of aluminum alloy to a tubular aluminum alloy member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; inserting the reduced extension into the tubular member in position so that the grooves coincide; forming a plurality of holes spaced at approximately equally spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
3. The method of joining a hollow nose member to a tubular member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; inserting the reduced extension with a pressed fit into the tubular member in position so that the grooves coincide; forming a plurality of holes spaced at approximately equall spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
4. The method of joining a hollow nose member to a tubular member comprising the steps of forming an annular groove about the inner side of the tubular member; forming a reduced extension on the hollow nose member; forming an annular groove about the reduced extension; forming complementary beveled shoulders on the end of the tubular member and on the end of the nose member; inserting the reduced extension into the tubular member in position so that the grooves coincide and the beveled shoulders are in contact; forming a plurality of holes at approximately equally spaced intervals through the wall of the tubular member communicating with the grooves; introducing molten metal material through the holes into the grooves; and allowing the molten material to cool and solidify to form an integral metallurgical bond between the tubular member and the nose member.
5. -A method of joining overlapped members, at least one of which has a hollow bore, comprising the steps of: Forming an annular groove on the inner side of the hollow bore of one member; forming an annular groove about the outer surface of the other member; inserting the second named member in the bore of the first named member in position so that the grooves coincide; forming a plurality of holes at approximately equally spaced intervals through the wall of the first named member to communicate with the grooves; introducing molten metallic material through said holes into the grooves; and
- allowing the molten material to cool and solidify to form an integral metallurgical bond between the members.
References Cited in the file of this patent UNITED STATES PATENTS 123,954 Trumbore Feb. 20, 1872 415,694 Bastian Nov. 26, 1889 758,278 Rapp Apr. 26, 1904 1,642,981 Weiss et al. Sept. 20, 1927 1,911,775 Smith et a1 May 30, 1933 2,313,312 Bakewell Mar. 9, 1943 2,335,414 Hinrichs Nov. 30, 1943 2,440,298 Ronay et al. Apr. 27, 1948 2,450,232 Campbell Sept. 28, 1948 2,746,141 Hobrock May 22, 1956 FOREIGN PATENTS 13,668 Great Britain June 10, 1909
Claims (1)
- 5. A METHOD OF JOINING OVERLAPPED MEMBERS, AT LEAST ONE OF WHICH HAS A HOLLOW BORE, COMPRISING THE STEPS OF FORMING AN ANNULAR GROOVE ON THE INNER SIDE OF THE HOLLOW BORE OF ONE MEMBER; FORMING AN ANNULAR GROOVE ABOUT THE OUTER SURFACE OF THE OTHER MEMBER; INSERTING THE SECOND NAMED MEMBER IN THE BORE OF THE FIRST NAMED MEMBER IN POSITION SO THAT THE GROOVES COINCIDE; FORMING A PLURALITY OF HOLES AT APPROXIMATELY EQUALLY SPACED INTERVALS THROUGH THE WALL OF THE FIRST NAMED MEMBER TO
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US726207A US3095644A (en) | 1958-04-03 | 1958-04-03 | Method for attaching overlapped members |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US726207A US3095644A (en) | 1958-04-03 | 1958-04-03 | Method for attaching overlapped members |
Publications (1)
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US3095644A true US3095644A (en) | 1963-07-02 |
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US726207A Expired - Lifetime US3095644A (en) | 1958-04-03 | 1958-04-03 | Method for attaching overlapped members |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3277601A (en) * | 1964-01-23 | 1966-10-11 | John W Ryan | Doll having an angularly adjustable limb |
US3392993A (en) * | 1966-08-29 | 1968-07-16 | Leon O. Myers | Swivel assembly and method |
US3727295A (en) * | 1971-09-15 | 1973-04-17 | Nl Industries Inc | Method of manufacturing foam filled metal bat |
US4060982A (en) * | 1975-12-17 | 1977-12-06 | Toyota Jidosha Kogyo Kabushiki Kaisha | Exhaust gas purifier for an internal combustion engine |
EP0060840A1 (en) * | 1980-10-06 | 1982-09-29 | Exxon Production Research Company | Method and apparatus for running and cementing pipe |
US4652158A (en) * | 1983-06-17 | 1987-03-24 | Brother Kogyo Kabushiki Kaisha | Armature support device for torsion spring print head |
WO1999037881A3 (en) * | 1998-01-24 | 1999-10-07 | Downhole Products Plc | Tubing shoe |
GB2339227A (en) * | 1998-01-24 | 2000-01-19 | Downhole Products Plc | Tubing shoe |
WO2002044514A1 (en) * | 2000-12-01 | 2002-06-06 | Weatherford/Lamb, Inc. | Casing shoe |
US9511716B2 (en) | 2014-09-02 | 2016-12-06 | Iddea California, Llc | Vehicle side bar end cap |
GB2565381A (en) * | 2017-11-10 | 2019-02-13 | Ace Oil Tools | Float equipment |
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US123954A (en) * | 1872-02-20 | Improvement in pipe-joints | ||
US415694A (en) * | 1889-11-26 | Making tubular swivel-joints | ||
US758278A (en) * | 1901-10-31 | 1904-04-26 | William M Rapp | Pipe-joint. |
GB190913668A (en) * | 1909-06-10 | 1910-05-12 | William Mcconway | Car Wheel and Methods of Manufacturing same. |
US1642981A (en) * | 1923-02-10 | 1927-09-20 | Schuette Lang Luftfahrzeugbau | Pipe joint |
US1911775A (en) * | 1929-01-17 | 1933-05-30 | Frank H Smith | Method of making pipe couplings |
US2313312A (en) * | 1941-04-02 | 1943-03-09 | Harding F Bakewell | Toolholder |
US2335414A (en) * | 1941-02-24 | 1943-11-30 | Tri Clover Machine Company | Art of couplings |
US2440298A (en) * | 1944-07-18 | 1948-04-27 | Ronay Bela | Method of brazing steel shaft and flange assemblies |
US2450232A (en) * | 1945-11-29 | 1948-09-28 | Climax Machinery Company | Joint structure |
US2746141A (en) * | 1950-11-27 | 1956-05-22 | Bundy Tubing Co | Method of welding a tube |
-
1958
- 1958-04-03 US US726207A patent/US3095644A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US123954A (en) * | 1872-02-20 | Improvement in pipe-joints | ||
US415694A (en) * | 1889-11-26 | Making tubular swivel-joints | ||
US758278A (en) * | 1901-10-31 | 1904-04-26 | William M Rapp | Pipe-joint. |
GB190913668A (en) * | 1909-06-10 | 1910-05-12 | William Mcconway | Car Wheel and Methods of Manufacturing same. |
US1642981A (en) * | 1923-02-10 | 1927-09-20 | Schuette Lang Luftfahrzeugbau | Pipe joint |
US1911775A (en) * | 1929-01-17 | 1933-05-30 | Frank H Smith | Method of making pipe couplings |
US2335414A (en) * | 1941-02-24 | 1943-11-30 | Tri Clover Machine Company | Art of couplings |
US2313312A (en) * | 1941-04-02 | 1943-03-09 | Harding F Bakewell | Toolholder |
US2440298A (en) * | 1944-07-18 | 1948-04-27 | Ronay Bela | Method of brazing steel shaft and flange assemblies |
US2450232A (en) * | 1945-11-29 | 1948-09-28 | Climax Machinery Company | Joint structure |
US2746141A (en) * | 1950-11-27 | 1956-05-22 | Bundy Tubing Co | Method of welding a tube |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3277601A (en) * | 1964-01-23 | 1966-10-11 | John W Ryan | Doll having an angularly adjustable limb |
US3392993A (en) * | 1966-08-29 | 1968-07-16 | Leon O. Myers | Swivel assembly and method |
US3727295A (en) * | 1971-09-15 | 1973-04-17 | Nl Industries Inc | Method of manufacturing foam filled metal bat |
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GB2339227B (en) * | 1998-01-24 | 2002-11-20 | Downhole Products Plc | Downhole Tool |
US6659173B2 (en) | 1998-01-24 | 2003-12-09 | Downhole Products Plc | Downhole tool |
WO2002044514A1 (en) * | 2000-12-01 | 2002-06-06 | Weatherford/Lamb, Inc. | Casing shoe |
US20040040704A1 (en) * | 2000-12-01 | 2004-03-04 | Baker Peter John | Downhole tool |
US7066253B2 (en) | 2000-12-01 | 2006-06-27 | Weatherford/Lamb, Inc. | Casing shoe |
US9511716B2 (en) | 2014-09-02 | 2016-12-06 | Iddea California, Llc | Vehicle side bar end cap |
GB2565381A (en) * | 2017-11-10 | 2019-02-13 | Ace Oil Tools | Float equipment |
US11136833B2 (en) | 2017-11-10 | 2021-10-05 | Ace Oil Tools | Float equipment for a wellbore |
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