US2758367A - Sheet metal fluid pressure storage vessel and method of forming the same - Google Patents

Sheet metal fluid pressure storage vessel and method of forming the same Download PDF

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US2758367A
US2758367A US302189A US30218952A US2758367A US 2758367 A US2758367 A US 2758367A US 302189 A US302189 A US 302189A US 30218952 A US30218952 A US 30218952A US 2758367 A US2758367 A US 2758367A
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shell
sheet metal
forming
storage vessel
vessel
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US302189A
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Paul S Dougherty
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Metal Coating Corp
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Metal Coating Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B65D88/06—Large containers rigid cylindrical
    • B65D88/08—Large containers rigid cylindrical with a vertical axis
    • 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
    • Y10T29/49863—Assembling or joining with prestressing of part
    • 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
    • Y10T29/49893—Peripheral joining of opposed mirror image parts to form a hollow body
    • 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
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Definitions

  • This invention relates to a sheet metal fluid pressure storage vessel and method of assembling the same and more particularly to household Water tanks and the like.
  • the vessels to which the present invention is primarily related are made up of sheet metal, usually sheet iron.
  • the guage or" the metal is usually 8 to 9.
  • the gauge In high pressure vessels, the gauge may be as low as 3 1 inch) and in some cases the gauge may be as high as 12.
  • the steel is normally galvanized and the present invention is well adapted to hot galvanizing after assembly of the vessel.
  • the usual storage vessel of this type is generally cylindrical and is composed of a generally cylindrical shell, a head and a bottom.
  • the head and bottom have been of smaller diameter than the shell and nest inside it. It is obvious that a tight fit is necessary and with the gauges employed the metal is so rigid that the insertion of the heads and bottoms requires a great deal of manual labor and even then the fits secured are such that after welding it has heretofore been considered normal to have a very large proportion of leaking tanks which have to be mended before use.
  • the vessel is adapted to be assembled on automatic hydraulic machinery upon which it may be welded whiie held in position. I have found assembly may be made very easy, providing shell and bottom are offset to provide a shoulder upon each which serves as an automatic stop upon pressure assembly of the vessel and likewise provides an area of definition for a circular weld automatically performed while held in pressed relationship.
  • Figure 1 is a diagrammatic illustration of the assembled vessel held in pressure relationship in a hydraulic apparatus wherein it may be welded;
  • Figure 2 is a side elevation of the pressure storage vessel
  • Figure 3 is a plan view of the top
  • Figure 4 is a plan view of the bottom
  • FIG. 5 is a detailed fragmentary vertical sectional view of the head construction
  • Figure 6 is a similar View of the detail of the bottom construction
  • Figure 7 is a fragmentary vertical sectional elevation after galvanization and welding.
  • Figure 8 is a vertical sectional view of a bottom before formation of the shoulder.
  • the vessel comprises a gen erally cylindrical sheet metal shell 14 which is provided with a relatively small crimped area which forms the flange 11 at the top which provides a shoulder 12.
  • the depth of the shoulder 12 is approximately the thickness of the metal in the head 13.
  • the head 13 is a domed sheet metal cap Whose exterior diameter is substantially that of the shell and whose interior diameter is the same as the outer diameter of the flange 11.
  • the head is provided with openings 14 which may serve as pipe connections.
  • the shell is likewise provided with 1 atnt i 2,758,367 Patented Aug. 14, 1956 a suitable number of openings 15 which serve for suitable pipe connections.
  • the bottom 20 comprises a sheet metal structure of substantially the same thickness as the head of the vessel. It has a web portion 21 and a short, downwardly depending flange 22. The web is usually dished inwardly or outwardly. At the bottom this flange is flared outwardly forming a shoulder of about the same depth as the thickness of the shell 10. A terminal flange 24 extends downwardly from the shoulder 23. It is, of course, obvious that this flange may be eliminated if desired or may be cut 013? after formation of the vessel. Normally, it is preferred not to do so.
  • FIG. 8 shows the bottom before formation of the shoulder and indicates in dotted line its shape after formation. This is produced by use of an upsetting die by which the shoulder 23 and the flange 24 are offset outwardly from the main body of the metal.
  • the top, shell, and bottom are aligned in the hydraulic machine 30 and pressure is applied so that the elements are telescoped together to take the form shown in Figure 2.
  • the bottom of the flange 16 of the top is brought against the shoulder 12 which serves as a stop as well as an aligning means so that the top is properly and evenly aligned with the shell.
  • the bottom of the shell is brought against the shoulder 23 which serves as a stop and aligning device for bringing the bottom and shell into proper relationship.
  • the elements are welded together while held in the machine, the elements being rotatable therein and the two welds being applied by automatic means operating simultaneously while so held and rotated.
  • the preferred welding is by submerged arc.
  • the welds are indicated at 40 and 41 in the groove or valley formed between the ends of the top and bottom and their respective shoulders engaged thereby as clearly shown in Figures 5 and 6.
  • the vessel is galvanized by the hot method.
  • the entire vessel is submerged in the molten zinc bath, submergence being through a portion of the bath which has a layer of molten flux on its surface.
  • the flux enters the openings 14 in the top of the vessel and also the drain plug opening 42 in the bottom as well as the openings 15 in the shell.
  • the vessel is withdrawn and drained, preferably while being held in upside down position so that the surplus molten metal will be exhausted through the various openings and particularly through the openings 14.
  • the enlarged view of Figure 7 shows a layer of galvanizing 45 on both the inside and outside of the tank at the juncture of the head 13 and shell 10.
  • flanges 22 and 11 of the bottom and shell respectively be tapered and that the outermost portion of the taper in each case be slightly more than the internal diameter of the shell. In this way, a tight fit is secured all the way around and air pockets are avoided which might cause difiiculty in the welding. It is also important that the slope and length of this flange be identical in all cases so that the position of successive pressure vessels on the hydraulic machine shall be identical; otherwise, it is necessary to adjust one or more of the welding heads.
  • the welding heads 50 may be mounted in permanent adjustable position above 3 the vessel. The heads may be moved for work on different sized vessels and once set, will need very little further adjustment.
  • the grooves between the head and the shell and between the shell and the bottom are utilized as the fillet grooves for the weldifig operation, thus avoiding the necessity of grinding or otherwise forming these grooves.
  • a pressure of several tons may be employed to bring the portions of the assembly into proper alignment. This pressure is maintained during the entire Welding operation and avoids the distortion or skewing which normally takes place in the welding of such vessels.
  • the method of assembling a sheet metal pressure storage vessel composed of a shell, a head, and a bottom constructed to fit together telescopically which comprises the steps of, reducing one end of a metal cylindrical shell to provide an annular shoulder and an end portion having an outside diameter approximately that of the inside diameter of the shell, forming a cap-like head having an inside diameter equal to the outside diameter of the reduced end of the shell and an outside diameter equal to the outside diameter of the major portion of the shell, forming a bottom with a circular web portion and an annular depending flange having an outside diameter substantially equal to the inside diameter of said shell, upsetting said flange to provide an annular shoulder and a further depending flange having an outside diameter equal to the outside diameter of the major portion of the shell, positioning said head, shell and bottom in disassembled aligned relationship in the order in which they fit together, applying pressure axially of the elements to telescope them together a predetermined distance to said shoulders and to their final positions, and simultaneously rotating and welding the head and bottom to the shell while maintaining the axial

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Description

v Aug. 14. 1956 P s. DOUGHERTY 2,758,367
SHEET METAL ELUID PRESSURE STORAGE VESSEL AND METHOD OF FORMING THE SAME Filed Aug. 1, 1952 2 Sheets-Sheet 1 Aug. 14. 1956 P. s. DOUGHERTY 2,758,367
SHEET METAL FLUID PRESSURE STORAGE VESSEL AND METHOD OF FORMING THE SAME Filed Aug. 1, 1952 2 Sheets-Sheet 2 L-All! I /5- I l I i /5 I ,f azz @Jazz %6/7, 40 80 Ej@ SHEET NETAL FL PRESS STGR'AGE VES- SEL AND METHOD OF EGG THE S Paul S. Dougherty, La Grange, 11L, assignor to ivietal Coating Corporation, a corporation of lliinors Application August 1, 1952, Serial No. '3ll2,189
1 Claim. (c1. 29-446) This invention relates to a sheet metal fluid pressure storage vessel and method of assembling the same and more particularly to household Water tanks and the like.
The vessels to which the present invention is primarily related are made up of sheet metal, usually sheet iron. In the case of water storage tanks, the guage or" the metal is usually 8 to 9. In high pressure vessels, the gauge may be as low as 3 1 inch) and in some cases the gauge may be as high as 12.
In the case of water storage vessels, the steel is normally galvanized and the present invention is well adapted to hot galvanizing after assembly of the vessel.
The usual storage vessel of this type is generally cylindrical and is composed of a generally cylindrical shell, a head and a bottom. In the previous constructions, the head and bottom have been of smaller diameter than the shell and nest inside it. It is obvious that a tight fit is necessary and with the gauges employed the metal is so rigid that the insertion of the heads and bottoms requires a great deal of manual labor and even then the fits secured are such that after welding it has heretofore been considered normal to have a very large proportion of leaking tanks which have to be mended before use.
The vessel is adapted to be assembled on automatic hydraulic machinery upon which it may be welded whiie held in position. I have found assembly may be made very easy, providing shell and bottom are offset to provide a shoulder upon each which serves as an automatic stop upon pressure assembly of the vessel and likewise provides an area of definition for a circular weld automatically performed while held in pressed relationship.
The invention is illustrated in the drawings in which:
Figure 1 is a diagrammatic illustration of the assembled vessel held in pressure relationship in a hydraulic apparatus wherein it may be welded;
Figure 2 is a side elevation of the pressure storage vessel;
Figure 3 is a plan view of the top;
Figure 4 is a plan view of the bottom;
Figure 5 is a detailed fragmentary vertical sectional view of the head construction;
Figure 6 is a similar View of the detail of the bottom construction;
Figure 7 is a fragmentary vertical sectional elevation after galvanization and welding; and
Figure 8 is a vertical sectional view of a bottom before formation of the shoulder.
As shown in the drawings, the vessel comprises a gen erally cylindrical sheet metal shell 14 which is provided with a relatively small crimped area which forms the flange 11 at the top which provides a shoulder 12. The depth of the shoulder 12 is approximately the thickness of the metal in the head 13. The head 13 is a domed sheet metal cap Whose exterior diameter is substantially that of the shell and whose interior diameter is the same as the outer diameter of the flange 11.
The head is provided with openings 14 which may serve as pipe connections. The shell is likewise provided with 1 atnt i 2,758,367 Patented Aug. 14, 1956 a suitable number of openings 15 which serve for suitable pipe connections.
The bottom 20 comprises a sheet metal structure of substantially the same thickness as the head of the vessel. It has a web portion 21 and a short, downwardly depending flange 22. The web is usually dished inwardly or outwardly. At the bottom this flange is flared outwardly forming a shoulder of about the same depth as the thickness of the shell 10. A terminal flange 24 extends downwardly from the shoulder 23. It is, of course, obvious that this flange may be eliminated if desired or may be cut 013? after formation of the vessel. Normally, it is preferred not to do so.
The formation of the bottom is important. It has not been found satisfactory to produce a cylindrical bottom and then crimp the upper portion thereof to provide the shoulder 23. Efiorts have been made to do this over a long period completely Without success. I have found, however, that the bottom may very simply be produced in the manner shown. Figure 8 shows the bottom before formation of the shoulder and indicates in dotted line its shape after formation. This is produced by use of an upsetting die by which the shoulder 23 and the flange 24 are offset outwardly from the main body of the metal.
After the bottoms have been formed as indicated in Figure 8, the top, shell, and bottom are aligned in the hydraulic machine 30 and pressure is applied so that the elements are telescoped together to take the form shown in Figure 2. In this operation, the bottom of the flange 16 of the top is brought against the shoulder 12 which serves as a stop as well as an aligning means so that the top is properly and evenly aligned with the shell. Similarly, the bottom of the shell is brought against the shoulder 23 which serves as a stop and aligning device for bringing the bottom and shell into proper relationship.
When the assembly has been completed, the elements are welded together while held in the machine, the elements being rotatable therein and the two welds being applied by automatic means operating simultaneously while so held and rotated. The preferred welding is by submerged arc. The welds are indicated at 40 and 41 in the groove or valley formed between the ends of the top and bottom and their respective shoulders engaged thereby as clearly shown in Figures 5 and 6.
After the welding has been completed, the vessel is galvanized by the hot method. The entire vessel is submerged in the molten zinc bath, submergence being through a portion of the bath which has a layer of molten flux on its surface. The flux enters the openings 14 in the top of the vessel and also the drain plug opening 42 in the bottom as well as the openings 15 in the shell. After immersion, the vessel is withdrawn and drained, preferably while being held in upside down position so that the surplus molten metal will be exhausted through the various openings and particularly through the openings 14. The enlarged view of Figure 7 shows a layer of galvanizing 45 on both the inside and outside of the tank at the juncture of the head 13 and shell 10.
It is important that the flanges 22 and 11 of the bottom and shell respectively be tapered and that the outermost portion of the taper in each case be slightly more than the internal diameter of the shell. In this way, a tight fit is secured all the way around and air pockets are avoided which might cause difiiculty in the welding. It is also important that the slope and length of this flange be identical in all cases so that the position of successive pressure vessels on the hydraulic machine shall be identical; otherwise, it is necessary to adjust one or more of the welding heads.
It will be noted in Figure 1 that the welding heads 50 may be mounted in permanent adjustable position above 3 the vessel. The heads may be moved for work on different sized vessels and once set, will need very little further adjustment.
In carrying out the welding operation, the grooves between the head and the shell and between the shell and the bottom are utilized as the fillet grooves for the weldifig operation, thus avoiding the necessity of grinding or otherwise forming these grooves.
In assembling the device in the hydraulic machine, a pressure of several tons may be employed to bring the portions of the assembly into proper alignment. This pressure is maintained during the entire Welding operation and avoids the distortion or skewing which normally takes place in the welding of such vessels.
The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitations should be understood therefrom as modifications will be obvious to those skilled in the art.
I claim: V
The method of assembling a sheet metal pressure storage vessel composed of a shell, a head, and a bottom constructed to fit together telescopically which comprises the steps of, reducing one end of a metal cylindrical shell to provide an annular shoulder and an end portion having an outside diameter approximately that of the inside diameter of the shell, forming a cap-like head having an inside diameter equal to the outside diameter of the reduced end of the shell and an outside diameter equal to the outside diameter of the major portion of the shell, forming a bottom with a circular web portion and an annular depending flange having an outside diameter substantially equal to the inside diameter of said shell, upsetting said flange to provide an annular shoulder and a further depending flange having an outside diameter equal to the outside diameter of the major portion of the shell, positioning said head, shell and bottom in disassembled aligned relationship in the order in which they fit together, applying pressure axially of the elements to telescope them together a predetermined distance to said shoulders and to their final positions, and simultaneously rotating and welding the head and bottom to the shell while maintaining the axial assembling pressure.
References (iited in the file of this patent UNITED STATES PATENTS 150,922 Wicesbrock May 12, 1874 489,644 Tripp Jan. 10, 1893 621,540 Reynolds Mar. 21, 1899 1,097,744 Avery et a1 May 28, 1914 1,921,241 Priebe Aug. 8, 1933 2,313,393 Mitchell Mar. 9, 1 943 2,350,720 Brodie June 6, 1944 2,459,954 Morgan Jan. 25, 1949 2,517,853 Eickmeyer Aug. 8, 1950 2,551,484 Branning May 1, 1951 2,613,015 Keating Oct. 7, 1952 FOREIGN PATENTS 43,457 Austria Aug. 10, 1910 677,974 Great Britain Mar. 12, 1952
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064346A (en) * 1957-07-15 1962-11-20 Wagner Electric Corp Method of forming disc brake piston
US3246794A (en) * 1964-04-08 1966-04-19 Pressed Steel Tank Company Pressure vessel butt joint and method of making same
US3734387A (en) * 1971-05-18 1973-05-22 Lyco Manuf Inc Tank fabrication system
US4086690A (en) * 1975-06-19 1978-05-02 Bbc Brown, Boveri & Company Limited Method and apparatus for producing a rotor welded together from discs
US4241843A (en) * 1979-06-08 1980-12-30 Amtrol Inc. Lined metal tank with heat shield and method of making same
US4313400A (en) * 1979-06-08 1982-02-02 Amtrol Inc. Lined metal tank with heat shield, indirect fired water heater and method of making same
US4344645A (en) * 1980-10-06 1982-08-17 Amtrol Inc. Tee-type leg bracket
US4598854A (en) * 1984-04-16 1986-07-08 Briskin Manufacturing Company Apparatus for sealing non-cylindrical tanks
US4655359A (en) * 1986-05-15 1987-04-07 Airclean Engineering Products Pressure tank construction for corrosive medium
US4986840A (en) * 1988-08-11 1991-01-22 Toyota Jidosha Kabushiki Kaisha Charcoal canister for use in a fuel purge system of an internal combustion engine
US5210920A (en) * 1991-08-29 1993-05-18 Xerox Corporation Apparatus and method for precision assembly of photoreceptor drums
US5391887A (en) * 1993-02-10 1995-02-21 Trustees Of Princeton University Method and apparatus for the management of hazardous waste material
US5476210A (en) * 1993-06-25 1995-12-19 Fuji Jukogyo Kabushiki Kaisha Structure for joining plate elements and method for joining the same
US5995573A (en) * 1996-09-18 1999-11-30 Murray, Jr.; Holt A. Dry storage arrangement for spent nuclear fuel containers
US6332346B2 (en) * 1998-02-18 2001-12-25 Nippon Sanso Corporation Metal vessel and a fabrication method for the same
US20090200319A1 (en) * 2008-02-08 2009-08-13 Gopala Krishna Vinjamuri Metallic liner for a fiber wrapped composite pressure vessel for compressed gas storage and transportation
US20140014085A1 (en) * 2010-09-30 2014-01-16 Electrolux Home Products Corporation N.V. Oven muffle with welding connection
US20140334903A1 (en) * 2013-05-10 2014-11-13 Transport Logistics, Int'l, Inc. Tilt-roll table for use in cleaning uf6 cylinders
US11446775B2 (en) * 2018-07-16 2022-09-20 William A. Schahuber Tank fabricating equipment

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US150922A (en) * 1874-05-12 Improvement in fountains for soda-water
US489644A (en) * 1893-01-10 Augustus f
US621540A (en) * 1899-03-21 Henry s
AT43457B (en) * 1909-03-17 1910-08-10 Heinrich Slow A K Process for the production of containers with protective floor covering for petroleum and other oils.
US1097744A (en) * 1912-07-27 1914-05-26 Henry W Avery Metal bilge-barrel.
US1921241A (en) * 1929-10-31 1933-08-08 Smith Corp A O Electrically welded high pressure storage tank
US2313393A (en) * 1940-08-03 1943-03-09 Mitchell Metal Products Inc Apparatus for welding
US2350720A (en) * 1941-08-28 1944-06-06 Westinghouse Air Brake Co Reservoir construction
US2459954A (en) * 1945-08-20 1949-01-25 Scaife Company Apparatus for pressing ends into cylindrical shells
US2517853A (en) * 1946-02-20 1950-08-08 Dayton Pump & Mfg Co Apparatus for welding tanks
US2551484A (en) * 1948-03-24 1951-05-01 Nat Tube Co Metal cask or tank with belt weld
GB677974A (en) * 1951-02-23 1952-08-27 M E Engineering Ltd Improvements in or relating to self-aligning axle-boxes
US2613015A (en) * 1948-03-29 1952-10-07 Smith Corp A O Welded tank construction

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US150922A (en) * 1874-05-12 Improvement in fountains for soda-water
US489644A (en) * 1893-01-10 Augustus f
US621540A (en) * 1899-03-21 Henry s
AT43457B (en) * 1909-03-17 1910-08-10 Heinrich Slow A K Process for the production of containers with protective floor covering for petroleum and other oils.
US1097744A (en) * 1912-07-27 1914-05-26 Henry W Avery Metal bilge-barrel.
US1921241A (en) * 1929-10-31 1933-08-08 Smith Corp A O Electrically welded high pressure storage tank
US2313393A (en) * 1940-08-03 1943-03-09 Mitchell Metal Products Inc Apparatus for welding
US2350720A (en) * 1941-08-28 1944-06-06 Westinghouse Air Brake Co Reservoir construction
US2459954A (en) * 1945-08-20 1949-01-25 Scaife Company Apparatus for pressing ends into cylindrical shells
US2517853A (en) * 1946-02-20 1950-08-08 Dayton Pump & Mfg Co Apparatus for welding tanks
US2551484A (en) * 1948-03-24 1951-05-01 Nat Tube Co Metal cask or tank with belt weld
US2613015A (en) * 1948-03-29 1952-10-07 Smith Corp A O Welded tank construction
GB677974A (en) * 1951-02-23 1952-08-27 M E Engineering Ltd Improvements in or relating to self-aligning axle-boxes

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064346A (en) * 1957-07-15 1962-11-20 Wagner Electric Corp Method of forming disc brake piston
US3246794A (en) * 1964-04-08 1966-04-19 Pressed Steel Tank Company Pressure vessel butt joint and method of making same
US3734387A (en) * 1971-05-18 1973-05-22 Lyco Manuf Inc Tank fabrication system
US4086690A (en) * 1975-06-19 1978-05-02 Bbc Brown, Boveri & Company Limited Method and apparatus for producing a rotor welded together from discs
US4241843A (en) * 1979-06-08 1980-12-30 Amtrol Inc. Lined metal tank with heat shield and method of making same
US4313400A (en) * 1979-06-08 1982-02-02 Amtrol Inc. Lined metal tank with heat shield, indirect fired water heater and method of making same
US4344645A (en) * 1980-10-06 1982-08-17 Amtrol Inc. Tee-type leg bracket
US4598854A (en) * 1984-04-16 1986-07-08 Briskin Manufacturing Company Apparatus for sealing non-cylindrical tanks
US4655359A (en) * 1986-05-15 1987-04-07 Airclean Engineering Products Pressure tank construction for corrosive medium
US4986840A (en) * 1988-08-11 1991-01-22 Toyota Jidosha Kabushiki Kaisha Charcoal canister for use in a fuel purge system of an internal combustion engine
US5210920A (en) * 1991-08-29 1993-05-18 Xerox Corporation Apparatus and method for precision assembly of photoreceptor drums
US5391887A (en) * 1993-02-10 1995-02-21 Trustees Of Princeton University Method and apparatus for the management of hazardous waste material
US5615794A (en) * 1993-02-10 1997-04-01 Holt Murray, Jr. Assembly for sealing a lid to a mating container body
US5476210A (en) * 1993-06-25 1995-12-19 Fuji Jukogyo Kabushiki Kaisha Structure for joining plate elements and method for joining the same
US5645364A (en) * 1993-06-25 1997-07-08 Fuji Jukogyo Kabushiki Kaisha Structure for joining plate elements
US5995573A (en) * 1996-09-18 1999-11-30 Murray, Jr.; Holt A. Dry storage arrangement for spent nuclear fuel containers
US6332346B2 (en) * 1998-02-18 2001-12-25 Nippon Sanso Corporation Metal vessel and a fabrication method for the same
US20090200319A1 (en) * 2008-02-08 2009-08-13 Gopala Krishna Vinjamuri Metallic liner for a fiber wrapped composite pressure vessel for compressed gas storage and transportation
US8474647B2 (en) * 2008-02-08 2013-07-02 Vinjamuri Innovations, Llc Metallic liner with metal end caps for a fiber wrapped gas tank
US20140014085A1 (en) * 2010-09-30 2014-01-16 Electrolux Home Products Corporation N.V. Oven muffle with welding connection
US9903592B2 (en) * 2010-09-30 2018-02-27 Electrolux Home Products Corporation N. V. Oven muffle with welding connection
US20140334903A1 (en) * 2013-05-10 2014-11-13 Transport Logistics, Int'l, Inc. Tilt-roll table for use in cleaning uf6 cylinders
US9222614B2 (en) * 2013-05-10 2015-12-29 Transport Logistics International, Inc. Tilt-roll table for use in cleaning UF6 cylinders
US11446775B2 (en) * 2018-07-16 2022-09-20 William A. Schahuber Tank fabricating equipment
US11577348B2 (en) * 2018-07-16 2023-02-14 William A. Schahuber Tank fabricating equipment
US20230234174A1 (en) * 2018-07-16 2023-07-27 William A. Schahuber Tank fabricating equipment

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