Connect public, paid and private patent data with Google Patents Public Datasets

Hollow repair device for leaky boiler tubes

Download PDF

Info

Publication number
US2517626A
US2517626A US77533047A US2517626A US 2517626 A US2517626 A US 2517626A US 77533047 A US77533047 A US 77533047A US 2517626 A US2517626 A US 2517626A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
sleeve
tube
threads
end
members
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
Application number
Inventor
Berg Solomon
Original Assignee
Berg Solomon
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00Arrangements for sealing leaky tubes and conduits
    • F28F11/04Arrangements for sealing leaky tubes and conduits using pairs of obturating elements, e.g. washers, mounted upon central operating rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10Means for stopping flow from or in pipes or hoses
    • F16L55/12Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing

Description

Aug. 8, 1950 s. BERG 2,517,626

HOLLOW REPAIR DEVICE FOR LEAKY BOILER TUBES Filed Sept. 20. 1947 mul l lu ggl WWI /l? Will/191W INVENT R.

SOLOMON ER ATTORNEY Patented Aug. 8, 1950 HOLLOW REPAIR DEVICE FOR LEAKY BOILER TUBES Solomon Berg, Newark, N. J.

Application September 20, 1947, Serial No. 775,330

3 Claims.

This invention relates particularly to devices for stopping leaks, ruptures or the like in boiler tubes to permit the tubes to be repaired.

A prime object of the present invention is to provide such a device that is readily and speedily applied to a leaky or broken tube or pipe and which when applied will effectively seal the leak or break yet provide unobstructed passage for the flow of water, steam, air or the like.

Another object is to provide a device of this kind that permits repair of the damaged tube without stopping operation of the boiler or the like.

A further object is to provide a device of this kind that is simple in construction, easy to assemble and economical to manufacture.

Other objects and advantages of the invention will be apparent from the description thereof to follow taken in connection with the accompanying drawing in which:

Figure l is a longitudinal sectional view showing my improved stopper applied to a leaky hol low boiler tube.

Figure 2 is a side elevational view of the im-.

proved stopper.

Figure 3 is a cross sectional view taken on the plane of the line 3-3 of Figure 1.

Figure 4 is a cross sectional view taken on the plane of the line 4-4 of Figure 1.

The improved stopper comprises a tube or pipe of metal I, the external surface of which is smooth at its center as indicated at 2, the remainder of said surface being formed with screw threads. The threads to the right of said central portion as indicated at 3 are cut in one direction, for example, right hand threads, and the threads to the left as indicated at 4 are cut in the opposite direction, or left hand threads. On the right hand end of the tube is a frusto-conical metal sleeve member 5 formed with internal screw threads adapted to mesh with the right hand screw threads 3. A similar sleeve member 6 is mounted on the left hand end and has internal screw threads adapted to mesh with the left hand threads 4, of the tube. These sleeve members are positioned on the tube with their smaller ends facing each other.

Surrounding the sleeve members and tube is an elongated expansible packing sleeve 1 formed of rubber or other suitable elastic, expansible or compressible material. The sleeve 1 extends across the threaded sections of the tube and seats on the beveled outer surfaces of the sleeve members 5 and 6.

In using my improved stopper, the parts are assembled as shown in Figure 2 with the sleeve" as to afford a sliding fit with the interior of the hollow boiler tube to be repaired, and that various sized stoppers will be used for various sized boiler tubes. The assembled unit is driven into the cracked or leaky boiler tube 8 to be repaired until it is opposite the leak or crack 9 therein and until the leak is positioned between the movable sleeve members 5 and 6 as shown in Figure l. A wrench or other tool is now applied to the end of the tube I, each end of the tube being provided with opposed slots l0 in its edge to receive such a tool, and the tube is turned in one direction, for example, to the left. Rotation of the sleeve members 5 and 6 on the tube is prevented by the engagement of the expansible sleeve 1 with said sleeve members and with the inner surface of the boiler tube. Due to the right and left hand threads, the turning of the tube l in one direction will cause the sleeve members 5 and 6 to be drawn or moved toward each other thereby compressing and expanding the central portion of the sleeve 7 and forcing it outwardly against the inner surface of the boiler tube in which the stopper is located thereby filling the void in the rupture, leak or crack 9. This forms a seal between the imperforate or unbroken part of the boiler tube nd the stopper around the outer surface of the sleeve 1. Upon rotation of the tube in the opposite direction, the sleeve members 5 and 6 will be moved apart so as to permit the elastic sleeve 1 to contract so that the stopper can be easily inserted into and removed from the tube.

What I claim is:

1. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve member on each end of said tube and having internal screw threads adapted to mesh with the threads on the corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elastic sleeve surrounding said frusto-conical sleeve members and relatively. slidably engaging the tapered outer surfaces thereof whereby said elastic sleeve is expanded or contracted upon movement of said frusto-conical sleeve members toward or away from each other into leak-proof contact with the inner surface of a boiler tube and out of contact therewith, respectively, at least one end of said tube being slotted to receive a tool for turning same relative to the frusto-conical sleeve members.

2. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads at one end being right hand threads and the threads at the other end being left hand threads, a frusto-conical sleeve member on each threaded end of said tube and having internal screw threads adapted to mesh with the threads on the, corresponding end of the tube, said sleeve members being positioned with their smaller ends facing each other, and an elongated rubber sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby upon inward movement of said frusto-conical sleeve members toward each other said rubber sleeve is expanded into contact with the inner surface of a boiler tube enclosing same to seal a rupture therein, the engagement of said rubber sleeve with said inner surface of the boiler tubev and with the tapered surfaces of said frustoconical sleeve members preventing their rotation.

3. A device for sealing ruptures in hollow boiler tubes or the like comprising a tube having external screw threads at each end, the threads on one end being cut in a direction opposite to the threads on the other end, a frusto-conical sleeve 5 smaller ends facing each other, and an expansible sleeve surrounding said frusto-conical sleeve members and frictionally engaging the tapered outer surfaces thereof whereby said expansible sleeve is expanded upon movement of said frustoconical sleeve members toward each other, said tube having means to be engaged by a tool for rotating the sleeve.

SOLOMON BERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 705,059 Flynn July 22,, 1902 739,489 Clifford Sept. 22, 1903, 775,124 Christman Nov. 15, 1904; 857,582 Boyle June 25, 19.07 2 922,544 Turner et al May 25, 1909 932,766 Daniels Aug. 31, 1909 1,788,845 Reynolds Jan. 13, 1931 2,374,947 Nicholson May 1, 1945,-

FOREIGN PATENTS 0 Number Country Date 6,637 Great Britain Mar. 18, 19,13

4 I member on each end of said tube and having internal screw threads adapted to mesh with the threads on the corresponding end of the tube, said sleeve members being positioned with their

US2517626A 1947-09-20 1947-09-20 Hollow repair device for leaky boiler tubes Expired - Lifetime US2517626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2517626A US2517626A (en) 1947-09-20 1947-09-20 Hollow repair device for leaky boiler tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2517626A US2517626A (en) 1947-09-20 1947-09-20 Hollow repair device for leaky boiler tubes

Publications (1)

Publication Number Publication Date
US2517626A true US2517626A (en) 1950-08-08

Family

ID=25104066

Family Applications (1)

Application Number Title Priority Date Filing Date
US2517626A Expired - Lifetime US2517626A (en) 1947-09-20 1947-09-20 Hollow repair device for leaky boiler tubes

Country Status (1)

Country Link
US (1) US2517626A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US2756779A (en) * 1952-06-18 1956-07-31 Mueller Co By-pass assembly for service pipe and method of installation
US2784627A (en) * 1952-06-18 1957-03-12 Mueller Co By-pass assembly for service pipes and wrench for installation of the same
US2786489A (en) * 1954-09-16 1957-03-26 Mid Valley Pipeline Company Pipe line plugs
US2829675A (en) * 1955-01-27 1958-04-08 Mueller Co By-pass assembly for service pipe
US2870794A (en) * 1954-06-10 1959-01-27 Ellis B Thaxton Pipe plugs
US2926701A (en) * 1956-05-18 1960-03-01 Ernest G Campbell Liner pipes
DE1229794B (en) * 1964-04-15 1966-12-01 Georg Woerle A method for closing and Dichtkoerper pipe fracture in the liquid pressure lines
US3495626A (en) * 1967-10-18 1970-02-17 American Mach & Foundry Pipeline plugging apparatus and methods
US3642032A (en) * 1970-04-16 1972-02-15 Fischer Cook Inc Internal pipe clamp applying apparatus and method
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
FR2538877A1 (en) * 1983-01-03 1984-07-06 Westinghouse Electric Corp Tube plug
EP0233766A2 (en) * 1986-02-14 1987-08-26 Swagelok Quick-Connect Co. Seal assembly
US4713870A (en) * 1985-03-26 1987-12-22 Raychem Corporation Pipe repair sleeve apparatus and method of repairing a damaged pipe
WO1988004762A1 (en) * 1986-12-16 1988-06-30 Nordson Corporation Expandable insert for a heat exchanger
US4793382A (en) * 1984-04-04 1988-12-27 Raychem Corporation Assembly for repairing a damaged pipe
JPH03504443A (en) * 1987-12-29 1991-10-03
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
WO2014170339A1 (en) * 2013-04-15 2014-10-23 Polytech Gmbh Closure stopper for through-holes in concrete objects

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705059A (en) * 1901-10-01 1902-07-22 Joseph Flynn Plumber's testing-plug.
US739489A (en) * 1902-03-06 1903-09-22 Charles Horace Gilby Siphon.
US775124A (en) * 1904-04-27 1904-11-15 John Henry Christman Tool for and process of repairing pipes.
US857582A (en) * 1907-01-23 1907-06-25 Monolithic Duct Company Apparatus for molding hollow objects from cement.
US922544A (en) * 1909-01-13 1909-05-25 Walter Turner Plumber's sanitary test-plug.
US932766A (en) * 1908-09-03 1909-08-31 Daniel Daniels Heaving-plug for wells.
GB191306637A (en) * 1913-03-18 1914-03-12 Frederick Leonard Ball An Improved Method of and Apparatus for Caulking Thin Metal Pipes.
US1788845A (en) * 1926-11-25 1931-01-13 Reynolds Donald Hugh Baillie Apparatus for testing pipe joints for leakage
US2374947A (en) * 1943-05-04 1945-05-01 Gene Le Roy High pressure test plug

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705059A (en) * 1901-10-01 1902-07-22 Joseph Flynn Plumber's testing-plug.
US739489A (en) * 1902-03-06 1903-09-22 Charles Horace Gilby Siphon.
US775124A (en) * 1904-04-27 1904-11-15 John Henry Christman Tool for and process of repairing pipes.
US857582A (en) * 1907-01-23 1907-06-25 Monolithic Duct Company Apparatus for molding hollow objects from cement.
US932766A (en) * 1908-09-03 1909-08-31 Daniel Daniels Heaving-plug for wells.
US922544A (en) * 1909-01-13 1909-05-25 Walter Turner Plumber's sanitary test-plug.
GB191306637A (en) * 1913-03-18 1914-03-12 Frederick Leonard Ball An Improved Method of and Apparatus for Caulking Thin Metal Pipes.
US1788845A (en) * 1926-11-25 1931-01-13 Reynolds Donald Hugh Baillie Apparatus for testing pipe joints for leakage
US2374947A (en) * 1943-05-04 1945-05-01 Gene Le Roy High pressure test plug

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731041A (en) * 1952-06-18 1956-01-17 Mueller Co By-pass assembly for service pipes
US2756779A (en) * 1952-06-18 1956-07-31 Mueller Co By-pass assembly for service pipe and method of installation
US2784627A (en) * 1952-06-18 1957-03-12 Mueller Co By-pass assembly for service pipes and wrench for installation of the same
US2870794A (en) * 1954-06-10 1959-01-27 Ellis B Thaxton Pipe plugs
US2786489A (en) * 1954-09-16 1957-03-26 Mid Valley Pipeline Company Pipe line plugs
US2829675A (en) * 1955-01-27 1958-04-08 Mueller Co By-pass assembly for service pipe
US2926701A (en) * 1956-05-18 1960-03-01 Ernest G Campbell Liner pipes
DE1229794B (en) * 1964-04-15 1966-12-01 Georg Woerle A method for closing and Dichtkoerper pipe fracture in the liquid pressure lines
US3495626A (en) * 1967-10-18 1970-02-17 American Mach & Foundry Pipeline plugging apparatus and methods
US3642032A (en) * 1970-04-16 1972-02-15 Fischer Cook Inc Internal pipe clamp applying apparatus and method
US3700265A (en) * 1972-02-04 1972-10-24 Northern Illinois Gas Co Internal pipe sealing device
FR2538877A1 (en) * 1983-01-03 1984-07-06 Westinghouse Electric Corp Tube plug
EP0113080A1 (en) * 1983-01-03 1984-07-11 Westinghouse Electric Corporation Tube plug
US4793382A (en) * 1984-04-04 1988-12-27 Raychem Corporation Assembly for repairing a damaged pipe
US4713870A (en) * 1985-03-26 1987-12-22 Raychem Corporation Pipe repair sleeve apparatus and method of repairing a damaged pipe
EP0233766A2 (en) * 1986-02-14 1987-08-26 Swagelok Quick-Connect Co. Seal assembly
EP0233766A3 (en) * 1986-02-14 1988-02-10 Swagelok Company Coupling
WO1988004762A1 (en) * 1986-12-16 1988-06-30 Nordson Corporation Expandable insert for a heat exchanger
JPH03504443A (en) * 1987-12-29 1991-10-03
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
WO2014170339A1 (en) * 2013-04-15 2014-10-23 Polytech Gmbh Closure stopper for through-holes in concrete objects

Similar Documents

Publication Publication Date Title
US3434746A (en) Flexible tube coupling
US3441297A (en) Tube coupling
US3120969A (en) Flareless tube coupling
US3092404A (en) Packed screw threaded gland type tube coupling for thin walled tubing
US3476412A (en) Tubular connection device
US4049296A (en) Leak repair clamp
US3533649A (en) Pipe fitting
US2672175A (en) Pipe expander
US3160426A (en) Pipe coupling having secondary resilient seal means
US4146254A (en) Coupler for tubing
US3459230A (en) Pipe stopper
US3841667A (en) Non-tapping service line connection fitting
US3857589A (en) Pipe connection with clamping ring
US2377510A (en) Hinged self-sealing coupling
US2463293A (en) Hose end
US2685461A (en) Pipe coupling
US2279257A (en) Expansible closure means for conduits
US4109941A (en) Coupling for plastic pipe
US2223012A (en) Beer drawing device
US3425717A (en) Tube coupling assembly
US2731279A (en) Fitting for reinforced hose
US2452277A (en) Tube coupling
US3381980A (en) Pipe joint
US4018462A (en) Pipe fitting
US2484815A (en) Tube coupling