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Publication numberUS672955 A
Publication typeGrant
Publication dateApr 30, 1901
Filing dateJul 30, 1900
Priority dateJul 30, 1900
Publication numberUS 672955 A, US 672955A, US-A-672955, US672955 A, US672955A
InventorsCharles Thomas Murrin
Original AssigneeCharles Thomas Murrin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pipe-patch attachment.
US 672955 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

No. 672,955 Patented Apr. 30, |90l. C. T. MURRN.


(Application led July 30, 1900.)

(No Model.)

TN: Nonms PETERS co.. PHoTaLn no.. wAsNmGTum n. c:




SPECIFICATION forming part of Letters Patent No. 672,955, dated April 30, 1901.

Application filed July 30, 1900.

To all whom, it may concern:

Beit known that I, CHARLES THOMAS MUR- RIN, a citizen of the United States, residing at Jeddo, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Pipe-Patch Attachment, of which the following is a specification. Y

This invention relates to a pipe-patch or leak-stopping attachment for use on wroughtiron, steel, lead, galvanized iron, tin, or any' other pipe that a joint can be rolled upon; and the object of the same is to provide simple and effective means for covering a fracture or leak, break, or puncture in a pipe, and the particular advantage of the improved device is that it will save the labor of digging up a full length of water, steam, or other pipe buried beneath the ground-surface, and after the leak orbreak is once located all that is necessary is to dig a hole at such location large enough for one operator to reach the break or leak and apply the improved attachment.

A further advantage of the improved deviceis that if a break occurs in an overground pipe-line of any type the leak can be stopped without removal of a single pipe-section and avoids all thread-cutting.

The invention consists in the construction and arrangement of theseveral parts, which will be more fully hereinafter described and claimed.

In the drawings, Figure l is a longitudinal vertical section of a pipe length, showing a break therein and the improved device applied thereto by connected sections, as on a water-main. Fig. 2 is a similar view of a pipe length, showing the use of the improved dyevice on the joint and in its simplest form. Fig. 3 is a similar view showing the im proved device constructed for application to ast-eamplpe- Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral 1 designates a length of pipe of any typeand material, and, as shown in Figs. land 2, two sections of the same are coupled by a sleeve 2 in the ordinary manner. In Fig. 3 the pipelength, as before indicated, is adapted for steam conveyance, and in this particular instance the leak-closure or g regular intervals.

Serial No. 25,321. (No model.)

patch attachment is somewhat modified, as will be presently explained; but the salient feature common to all the forms of application n is present.

The main part of the improved attachment consists of a cylindrical section 3, having at one end an inwardly-projecting collar or annular flange 4, which is adapted to snugly and tightly bear over the portion of the pipe on which it is fitted, the opposite end of the said section having an outturned circumferential liange 5, provided with bolt-apertures 6 at Any number of intermediate sections 7 are also used in connection with the section 3, and each of said sections 7 has outturned circumferential flanges 8, one at each end, also formed with bolt-apertures 9. At times a terminal section lO will be used, as shown by Fig. l., and which is similar in construction to the sectionv 3, except that the collar and outturned flange are in reverse positions.

In Fig. 3 the section 3 is similar to that employed in the other forms; but the iiange 5 is not as extensive and is without bolt-aper- Telescopically fitted on the section 3 tures. in thisinstance is an extension-section 11,with an inturned ange l2, carrying a packing 13 against the inner side thereof and adapted to fit closely'against the flange 5, as shown, to form a steam-tight joint, and the opposite end of the section ll has an outturned flange 14 for connection to intermediate sections, similar to those heretofore set forth and as fully shown.

In the use of the improved device on an underground pipe it is only necessary to first locate the leak and then dig a hole therearound suiiiciently large for one operator to enter and reach the pipe-section joint. The sleeve 2 or other coupling is then released, so as to free the end of the pipe-section having the leak therein, and after this has been accomplished the section 3 is pushed over the pipe from the said free end until the collar or flange Il has passed the break or puncture. If the break or leak be located too great a distance from the free endot' the pipe to effec- IOO until a point adjacent the end of the said latter section is reached, when a rolling or bulging implement is inserted in the pipe and the latter formed with a circumferential projection, as at 16, to closely bind against the inner portion of the patch-section, and thereby dam the inclosure over the leaking portion of the pipe inclosed.

In Fig. l, where a water-main is shown as repaired by the improved attachment, a terminal section is used; but this could be replaced by one of the intermediate sections. After the pipe is patched, as shown by Fig. l, the sleeve 2 may be again secured in coupling position and the pipe be thereby repaired and rendered stronger than in the first instance or before springing a leak, and it will also be observed that no threading or pipecutting is necessary in order to make the application ot' the improvement effectual.

In Fig. 2 the simplest use of the improved device is shown, and therein the rolled portion or bulge of the repaired pipe is located close to the collar 4, or so that the break or s leak will be between the said bulge and the collar, and also illustrating the mode of application when the leak is near the free end of the pipe. These two modes of application will demonstrate the capability of the improved attachment and also indicate the indefinite number of ways of utilizing the parts explained to meet certain peculiar demands that may exist by reason of various fractures or leaks along a pipe-section. It will also be understood that suitable packing may be interposed between the outturned flanges of the several parts or sections before being united by bolts to thereby institute a water or steam tight joint, and in stopping a leak in a steam-pipe the section 3 and its telescopic extension will be unitedly slipped over the free end of the pipe-section, and after proper location of the collar 4 the said eXtension will be moved to clear a greater portion of said section 3, as before set forth, and, if desired and necessar may be extended up to coupling relation with an intermediate section, as also explained, and the inclosure thus continued indefinitely.

In the treatment of pipes aboveground it will be seen that the application of the iniproved attach ment can be effected m uch more rapidly, and in any of its uses the device will be inexpensive by reason of the few number of parts included therein and the facility with which they can be applied.

Having thus described the invention, what is claimed as new isi- 1. The combination with a pipe, of a cylindrical pi pe-section independent of the pipejoint coupling and open at both ends, and movable longitudinally over the pipe, the said section having an inwardly-prejecting collar at one end for frictionally bearing directly on the outer surface of the pipe adjaceuta fracture in the latterand an outturned connectible flange at the opposite end.

2. The combination with a pipe, of a cylindrical pipe-section independent of the pipejoint coupling and open at both ends', and movable longitudinally over the pipe, the said section having an inwardly-projecting collar at one end frictionally bearing directly on the outer surface of the pipe adjacent a fracture in the latter, the opposite end of the section being ontturned, and an auxiliary section having an outturned flanged end for attachment to the similar end of the section to extend the covering over the pipe length to the pipe-joint.

In testimony that I claim the foregoing as my own Ihave hereto aixed my signature in the presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2500601 *Jan 26, 1945Mar 14, 1950Diamond Alkali CoPipe sealer
US2781206 *May 18, 1953Feb 12, 1957Exxon Research Engineering CoPressure compensated pipe collar
US4195669 *Jan 12, 1976Apr 1, 1980United States Steel CorporationMethod of arresting crack propagation in line pipe characterized by ductile fracture
Cooperative ClassificationF16L55/172