Jan. 7, 1947.v` P_ ROSA 2,413,997 lPLUrvmE'R’s T_ooL_ -Filed. Sept. 21, «1945 _ mäw _ _ PETE ` INVENTOR. ,@0654 ' ' Patented Jan. 7. 1947 '2,413,997 iihil'iâl) STATES iZ’ÄTENT OFFICE 2,413,997 PLUMBER’S TOOL Pete Rosa, Oakland, Calif. Appiication September 21, 1945, Serial No. 617,843 1 Claim. (Cl. 15m-104.05)A i The present invention relates to plumber’s tools and more particularly to a device to be used in cleaning stoppages in pipes or the like by the application of iiuid pressure. Waste pipes and sewers and the like often be come filled with solid or semiesolid material which causes a stoppage of normal flow through the pipe but which can be dislodged and cleared by the application of pressure followed by a ñoW of clear water through the pipe. The moet con» venient source oi’ liuid under pressure is usually 2 member I9 secured in place by a clamp 2B. The opposite end of the length of hose I8 which is not shown is adapted to -be connected with a water tap so that water under pressure may be supplied through the pipe I3 and bulblike mem ber l c under control of the valve I5. The bul'blike member I0 is of a size to ñt snugly within a waste line as a standard size of Waste pipe ‘I and when it is designed for use with the standard four inch pipe it will also ñt into the trap portion of a toilet bowl where stoppages fre a fresh water line to which an ordinary haii or quently occur. The pipe I3 may be of any length three-quarter inch garden hose may be con but preferably of two and a half or three feet so that it provides a convenient handle for manipu nected. it is not, however, convenient to make a connection between such hose and the larger 15 lating the bulblike portion I0 and as the valve I5 is positioned directly adjacent the end of this size pipes used for waste lines. It is toa device for making the latter connection that the present handle, it is in the most convenient position to invention is directed. control the ñow of water through the device and “It is an object of the present invention to pro to provide either a steady or an intermittent flow vide an improved device for clearing waste lines 20 as required. f and to provide a device having improved means In operation of the device, when a stoppage for forming a quick and simple connection with occurs in a pipe, the hose i3 is connected to a a waste line, such connection being capable of convenient outlet and the bulblike portion It is forming a perfect seal and withstanding pressure. inserted into the toilet bowl or portion of the pipe Further and more speciñc objects and advantages 25 behind the stoppage after the pipe has been made of the invention are made apparent in the fol accessible by remo’vtal ci a cleanout plug or by lowing specification wherein reference is made removing a convenient joint or the like. The to the accompanying drawing. diameter of the bulb itl is such that it provides a snug but slidable ñt against the inner wall of in the drawing: _ Fig. l is a View in side elevation of a device 30 the pipe and a iluid tight seal is formed between the exterior of the bulb and the interior of the embodying [my invention; and pipe wall by virtue of two structural features of Fig. 2 is a similar view of a portion of the device ‘ the bulb. One ci these features is the size of the shown in Fig. _l with a part shown in section and opening ii which is considerably smaller than illustrated as disposed inside a pipe. the diameter of the bulb but slightly larger than The invention as shown in the drawing com» the internal diameter of the pipe I3 through prises a resilient hollow bul‘bous member I@ which which the water under pressure is supplied. Con may be made of rubber or similar material and seduentiy, the water may flow through the bulb which, for reasons presently to be made apparent, is of substantially spherical but slightly elongated rapidly. shape. bulb and the small diameter of the outlet open ing lâ, a slight pressure will be exerted within At one end the bulblike member Ib is provided with a discharge opening lI and dia» metrically opposite such opening there is pro vided an inlet opening il surroundedrby a neck portion l2 formed integrally with the member IS in order that it may be secured to one end of a Because of the spherical shape of the the bulb which will tend to distend its walls. . The second feature is that the bulb is slightly elon gated in shape so that it has a central portion oi substantial width contacting the inner wall oi the pipe which is .shown at 'l in Fig. 2. The width of such central portion which normally contacts the pipe is indicated in Fig. 2 by the arrow a. piece of pipe I3. A clamp i4 or other convena tional means may be employed for securing the bulblilie member lc to the pipe I3. A valve I5 Consequently, as the result of even a slight pres is connected with the opposite end of the pipe I3 to control the iiow of Water therethrough and a 50 sure tending to clistend the wails of the bulblike member 6c, two sections of the bulb adjacent hose adapter, which comprises a nipple I5 and opposite ends of the central portion which con the female portion il of a standard hose coupling, tacts the pipe 'l are distended, as illustrated in is employed to form a connection between the dotted lines at 8„ into sealing contact with the valve and a length of standard garden hose I8 which includes a conventional male hose coupler 55 inner wall of the pipe. In the event that the 2,413,997 3 4 pressure in the pipe between the stoppage and the bulb i0 is built up because of resistance of the stoppage to being dislodged, the greater pres sure is transmitted back _into the bulb through what internal pressure is applied the bulb will not be dislodged. I claim: the opening Il and is added to the original pres sure which tends even more to provide a tight Seal Which prevents the escape of water between the bulb and the walls of the pipe. In previously known devices similar in prin ciple of operation to that shown herein, it has been found that water pressure insuf?cient to dislodge a stoppage in a pipe is frequently so great that the connection with the waste pipe is dislodged and the water under pressure is re, leasted at the open end of the waste pipe. In the present device, however, the design of the bulb like member Iii is such that even a very low in ternal pressure will securely seal and ñx it in position within the waste pipe so that no matter In a device for cleaning waste lines, a member for forming a closure within the line and for forming a connection with a source of ñuid under pressure, said member consisting of a resilient hollow bulb of substantially spherical but; slightly elongated form having its greatest transverse diameter substantially the same as the interior diameter of the waste line to be cleaned, and a connection with an opening thereat forming communication between the interior of one end of said bulb and a source of ñuid under pressure, said bulb having an opening in its opposite end at least as large as the opening at said connec tion. PETE ROSA.