0a. 29, 1946. 2,410,162 J. H. HORAN _ AGITATOR FOR LIQUID COOLING'SYSTEMS Filed July 13, 1944 \%D INVENTOR. BY 5 K‘I’ / www.1 2,410,162 Patented on. 29, 1946 _' UNITED STATES OFFICE < AGITATOR FOR. LIQUID COOLING SYSTEMS Joseph H. Horan, Bronx, N. Y. Application July 12, 1944',‘ Serial No. 544,750 -1 Claim. 1 . This invention relates to new and useful im provements in an agitator for a liquid cooling system, and is particularly intended for the radi ators of automobiles. V . (01.‘ 285-2) ' It is a, known fact that radiators of automobiles rust, and in time‘ the rust becomes so bad as to clog the radiators, .and then the engines over heat. ‘The new and improved agitator is of‘ sim ple construction and is adapted to be easily con - H . 2 , pelling the‘ liquid, of a cooling system. The piston [I is' connected with a piston rod l2 which in turn isjconnected with a lever l3 which may be manually worked'lup and down. The lever I3 is pivotally mounted by a pintle M at its back end upon a bracket, I I mounted on the cylinder ID. A suitable structure 16 is provided for supporting the cylinder i0. ' ’ ‘ ' A nipple I1 is mounted through the bottom nected with the radiator and by which the liquid 10 wall of the cylinder ill and connects with a ?exi ble tube IS. A clamp I9 is mounted on the top may be agitated and then drained off with the end of the tube [8 by which it is clamped on the loosened rust so as to keep the radiator relatively bushing IT. The tube l8 extends to and connects clean and. prevent it from reaching a state in with a long bushing 20. A clamp 2| is engaged which clogging takes place. It is proposed to characterize the new and im 15 on the latter end of the tube I8 for securely con necting it with said long bushing 20. proved agitator by the fact that it is provided A cap 22 with a washer of a design for engag with a cylinder and piston connected with a pipe ing on the neck 23 of a radiator 24 of a cooling line by which the liquid may be drawn in and system is associated with means for holding said expelled. It is proposed to provide a cap, and certain bushings which may be easily mounted 20 long bushing 20 in various positions extended through the cap. More speci?cally, the cap 22 upon the radiator inlet, and be connected with has a tubular portion 25. This tubular portion said pipe line to facilitate agitating the liquid of extends through the cap. Its bottom end is pro the cooling system in an especially easy way. vided with the small projections 26 by which the The invention contemplates a modi?ed form in which a hose is adjustably connected with the 25 cap 22 is mounted on the neck of the radiator in the usual way. The cap 24 has projecting handle bushing so that it may be extended further down portions 21 by which it may be conveniently or moved upwards as required for a particular gripped. The tube 25 is externally threaded. radiator of a particular automobile. The bushing 20 is provided with external threads Another object of the invention is the construc tion of a device as mentioned which is simple 30 by which it is threadedly mounted through the tube 25. and durable and which may be manufactured and The operation of the device is as follows: sold at a reasonable cost. The clamp 2| is loosened and then the long For further comprehension of the invention, bushing 20 is adjusted upwards or downwards in and of the objects and advantages thereof, refer ence will be had to the following description and 35 relation to the cap 22 so as to extend down as far as possible into the radiator 24. The cap 22 is accompanying drawing, and to the appended mounted on the neck 23 of the radiator in place claim in which the various novel features of the of the conventional cap. The handle it is then invention are more particularly set forth. moved upwards and downwards so that the piston In the accompanying drawing forming a mate rial part of this disclosure 40 I l reciprocates at the cylinder I0 drawing in and expelling the liquid of the radiator 24. This Fig. 1 is a fragmentary elevational view of an . agitates the liquid and Washes the loose particles agitator for a liquid cooling system constructed of rust, dirt and the like off the walls of the radi in accordance with this invention, certain parts ator. The radiator may then be drained. being shown in section. Fig. 2 is a perspective View of the cap used in 45 In Fig. 4 a modi?ed construction of long bush ing 20' for the agitator is shown. The long bush the agitator, illustrated up side down. ing 20’ is provided with a support 30 in its top Fig. 3 is a perspective view of the long bushing. end. This support essentially consists of a rim Fig. 4 is a fragmentary enlarged vertical sec tional view through the cap and bushing of an 3|, several spokes 32, and a central hub 33. The agitator constructed in accordance with av modi 50 hub 33 supports a stem 34 which extends axially through the long bushing 20'. Another support ?ed form of this invention. The agitator for a liquid cooling system, in ac is mounted upon the bottom of the stem 34 and cordance with that form of the invention illus consists of a hub portion 35 mounted on the stem trated in Figs. 1-3, includes a cylinder 10 pro and connected with spokes 36 which connect with vided with a piston H for drawing in and ex~ 55 a rim 3'! located within the bottom portion of the v 2,410,162 3 long bushing 20', The bottom portion of the long bushing 20’ is provided with a plurality of slots 38 to make it resilient. A clamping ring 39 is mounted upon the bottom of the long bushing 20’. A ?exible rubber hose 40 is slidably mount ed Within and extends from the long bushing 20' and engages about the rim 31, The long bush ing 20’ is provided. with external threads which 4 is reserved to all changes and modi?cations com ing within the scope of the invention as de?ned in the appended claim. Having thus described my invention, what I claim as new and. desire to secure by United States Letters Patent is: A coupling structure, for use with a radiator having a neck portion,_ comprising a tube ?tting threadedly engage the tube 25 of the cap 22. “ into said neck and having an internally threaded In other respects this form of the invention is 10 sleeve portion protruding from said neck, an elongated externally threaded bushing adjustably similar to that previously shown and like ref erence numerals identify like parts in each of the threaded into the sleeve and presenting an upper several views. end to which a pipe may be detachably secured, The operation of this form of the invention is a cap ?tting over said sleeve for engagement with identical to the prior form, distinguishing merely > said neck, a sealing gasket in said cap, a hose in the fact that the clamp 39 may be loosened and then the rubber hose 4!! may be extended or retracted so as to better ?t a particular design closely ?tting inside said tube terminating short of the outer end thereof and extending out of the inner end thereof, rings positioned in the of radiator. One advantage in so far as ?t is con outer end of the tube and. in the hose at the inner cerned resides in the fact that the rubber hose 20 end of. said tube and arranged to resist clamping 40‘ may be bent laterally‘ to engage further down pressure applied to the tube externally thereof, into the radiator and‘ avoid: obstructions directly the inner end of said tube being slotted in that beneath the neck of the radiator. portion in which one of said’ rings. is positioned, While I have illustrated and described the pre_ and a connector for joining said rings in. ?xed ferred embodiments of my invention, it is to be 25 spaced relation with. each. other. understood that I do notlimit myself to the pre cise constructions herein disclosed and the right J O‘SEPBLI-L HORAN.