Патент USA US2129415код для вставки
Sept; 6, 193$. A. FONTENOT 2,129,415 SUCTION PUMP Filed March 9, 1937 2 Sheets-Sheet l ‘Inventor view/at” By ‘ 29m Attorneys Sept.‘ e, 1938. 2,129,415 A. FONTENOT SUCTION PUMP Filed March 9, 1957 ‘ I 2 Sheets-Sheet 2 . ‘ Inven‘ior 2077/28 noi' Attorneys Patented Sept. 6-, 19538 " $2,129,415 I UNITED STATES 2,129,415 SUCTION PUMP Abel Fontenot, Fort Benning, Ga. Application March 9, 1937, Serial No. 129,937 1 Claim. (Cl. 103-453) The present invention relates to new and useful improvements in suction pumps for use particu larly in removing obstructions from clogged drain pipes and has for its primary object to provide, in 5 a manner as hereinafter set forth, a device of this character embodying a novel construction, combination and arrangement of parts through the medium of which pipes of considerable length may be expeditiously cleaned or opened with a 10 minimum of labor. Another very important object of the invention is to provide a pump of the aforementioned char acter embodying a novel construction and ar rangement of base and suction cup for providing 15 a leak proof joint or connection between the pump and the pipe to be opened. Other objects of the invention are to provide a pump of the character described which will be comparatively simple in construction, strong, 20 durable, highly efficient and reliable in use, com pact, light in weight and which may be manu factured at low cost. All of the foregoing and still further objects and advantages of the invention will become ap 25 parent from a study of the following speci?ca tion, taken in connection with the accompany ing drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein: 30 Figure 1 is a view in side elevation of a pump constructed in accordance with the present inven tion. ‘ Figure 2 is a view in vertical section through the invention. 35 Figure 3 is a view in horizontal section through the base, taken substantially on the line 3-3 of Fi .2. . - %‘igure 4 is a detail view in elevation, showing the discharge neck or spout. 4.0 ' Figure 5 is a detail view in elevation of the hinged check valve for the discharge spout. Referring now to'the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a barrel I of 4 any suitable metal having a cap 2 threaded on its upper end. The cap 2 is provided with air vents 3. Extending slidably through the cap 2 into the barrel | is a rod 4 having ?xed on its upper end an operating handle 5. Fixed on the lower end 50 of the rod 4 for reciprocation in the barrel I is a piston B. A coil spring 1 encircles the rod 4 and rests on the piston 6 for cushioning said piston against the cap 2 on the upward stroke of the pump. A coil spring 8 encircles the rod 4 and 55 rests on the cap 2 for cushioning the handle 4 on the downward stroke of the pump. Projecting from the lower portion of the barrel I is a discharge spout 9 having mounted on its outer end a seat In of suitable material. The reference numeral II designates a check valve for the discharge spout 9 which is provided with an arm I2 which is pivoted on a bracket I3 which projects from the barrel I. The check valve II is engageable with the seat I0 and said check valve 10 is provided with a face I4 of suitable material. A spring I5 yieldingly urges the valve || toward closed position. Threaded into the lower end of the barrel I is a substantially dome shaped base I6 of suitable 15 metal having threaded thereon a bottom I'I pro vided with an inlet opening I8. Mounted on the bottom I‘! is a gasket I9 of suitable material, such as leather or rubber, having an opening 20 there in aligned with the opening I8. A check valve 2| is provided for closing the openings I8 and 20, said check valve 2| being of leather, rubber or other suitable material. Check valve 2| com prises a tongue 22 secured to the gasket I9 by suit able elements 23. Further, the check valve 2| is 25 stiffened and weighted by a metallic disc 24 secured thereon. _ Mounted on the lower end portion of the barrel I is a rubber suction cup 25. A suitable clamp 26 secures the suction cup 25 on the barrel |. As illustrated to advantage in Fig. 2 of the drawings, the suction cup 25 encloses the base I6 and ex tends therebelow. ‘ It is thought that the manner of using the de vice will be readily apparent from a consideration of the foregoing. The bottom ll of the base I6 is engaged with the mouth of the pipe to be opened or with the basin, sink, bowl or the like to which said pipe is usually connected. ‘The rubber suction cup 25 engages the sink, basin or bowl for providing a leak proof connection in a manner which is thought to be well understood. As the piston B is drawn upwardly in the barrel I the water and other matter in the pipe is sucked past the check valve 2| into the base I6 and the barrel I. On the downward stroke of the piston 6 the check valve 2| closes and the check valve II is opened as the water and other matter is dis charged through the spout 9. Of course, the valve II is closed on the upward stroke of the piston 6. 50 The substantially dome shaped‘ base I6 functions as a support for the cup 25 in a manner to permit the creation of an exceedingly strong vacuum or suction without collapsing said cup 25. It is thought that the many advantages of a 55 2 2,129,415 :15 f1 .I r ‘ pump constructed in accordance with the present stantially dome shaped base mounted on one end invention will be readily understood and although of the barrel, a dome-shaped flexible suction cup a preferred embodiment of the device is as illus trated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed. What is claimed is:— 10 A pump ofthe class described comprisinga barrel having an outlet openingaagpiston mount ed for reciprocation in said barrel, a rigid sub embodying a neck secured to said end of the bar rel and enclosing the base, said suction cup being spaced outwardly from the walls of the base and projecting beyond the bottom of the base, said base constituting an internal support for the suc tion cup, said base having an intake opening in its bottom, and an inwardly opening check valve mounted in the,‘ base for. controlling .said intake 10 opening. . ABEL FONTENOT.