Патент USA US2119134код для вставки
May 31, 1938. J. KARMAZIN 2,119,134 GRILLE CONSTRUCTION Filed May 31, 1935 INVENTOR. J2 mv K»; K #14 z m/ ATTORNEYS ‘Patented ‘May 31',‘ 1938 _ . 2,119,134 UNITED STATES PATENT OFFICE“ 2,119,134 I GRILLE CONSTRUCTION JohniKarmazin, Huntington, Ind., assignor to General Motors ‘Corporation, Dayton, Ohio, 2. -' corporation of Delaware "Application May 31, 1935, Serial No. 24,279‘ 2 Claims. (c1. 98-114) together in a manner later described to provide an integral unit of strong and rigid construction. In the form of the invention shown in Figs. tion for use with an‘ air delivery opening for 2 to 5 inclusive, each ?n is provided with a plu conditioned air. It is customary in the air con ,’ ditioning art and in other arts where air is cir-' rality of integral spacers‘ I! which are formed by -_ culated to and from an enclosure to provide drawing, in a plurality of ‘steps, a plurality of This inventionrelates to refrigerating appa-l ratus and more particularly to a grille construc grille means at the openings through which air .tapered tubular projections from thematerial passes from and to the enclosure to act-as a vguard to prevent the entrance of large objects 10' into the opening to de?ect the air, and to im "prove the appearance. Heretofore, various grille constructions have been employed which have of the ?ns. The ?n itself is given a transverse curvature in order to direct the air passing through the grille at an angle awayv from the per pendicular. The process of ‘ drawing out the pro; jections l2 results in a narrowing of the ?n at the portion thereof where each ‘projection, is ' This application 5is a continuation in part of‘ drawn out so that the edge of the fin is “necked 1-5 Karmazin application Serial No. 697,756, ?led in” at the points It. In order to provide con been relatively costly in construction. - November 13, 1933, entitled “Grille”, now Patent . tinuous curvature to the ?n extending along the No. 2,032,365,>patented MarchB‘, 1936. - .It is object of the present invention to pro necked-in portions l6 as well as along the wider portions intermediate the portions IS, the base -_vide ‘a grille‘ construction which will not only‘ be of the projection I2 is formed with a step It which is substantially perpendicular to the axis ?rst cost and which ‘will provide a strong rigid grille structure in a very simple and economical of the projection l2 and joins‘the curved portion 20 pleasing in appearance/but willbe economical in manner. 2.0 of the ?n by shoulder portions 20 and 22 at op posite sides of the step Ill. The bottom of the tapered tubular projections I 2'-is left closed as A further object 'is to provide a grille having 5 a plurality of parallel ?ns provided with integral - at 2|. A plurality of identical ?ns having been formed in this manner, the ?ns are assembled ?nned spacer means formed from the materia together with the tapered projections 12 of one ?n telescoped into the corresponding projections of‘ It the?ns. is another , I object to provide a novel method of the next adjacent ?n as illustrated in Fig. 5. of constructing such a grille. _ Further objects and advantages of the present ‘Thus, stacked together, the assembled ?ns are 30 pressed together to provide a close telescoping en~ invention will be apparent from the following de gagement between the projections “ l 2, and the scription, reference being had to the accompany ing drawing,,wherein a preferred‘form of ‘the ‘bounding frame is assembled to this structure. If the grille be of octagonal form as illustrated present invention is clearly shown. \ in Fig. 1, the assembled ?ns may be cut to octag In the drawing: * 35 onal form'after assembly and the frame member. Fig. i is a front view of a grille constructed ac 69 assembled around the same. The entire struc cording to the present invention; Fig. 2 is a fragmentary front view of the grille ture is then bonded by suitable bonding process. For example, the fins and the bounding frame and illustrated on a larger scale; it may be formed from copper coated steel stock Fig. 3 is a fragmentary perspective view of one 40 and when the grille structure is assembled, the ?n of the grille; ‘ , Fig. 4 is‘ an end view of the grille before the same may be bonded by placing the structure in a furnace having a controlled reducing atmos boundary frame is attached thereto; Fig. 5 is a cross section on line 5-5 of Fig. 2; phere such as hydrogen where the temperature 45 Fig. 6 is a cross section corresponding to Fig. is raised to a point high enough to melt the copper 5 showing a modi?ed form of the invention; and/ coating and braze the fins together. Alternative ly, the assembled grille structure may be made Fig. 7 is a cross sectiongtaken on the same plane as Fig. 6 and showing the grille‘ structure before from any desired stock and given a solder or tin dip to bond the structure together or the struc the welding operation is performed. 50 Referring now to Fig. 1,,there is illustrated a ture may be bonded ?rst by the copper brazing 50' grille of octagonal form comprising a plurality process above described, and then given a tin dip " of parallel ?ns it! which are uniformly spaced. to provide a rust-proof coating as well as addi from each other by a plurality of spacers I2‘. The ' tional strength.‘ grille is bounded by a frame ll of octagonal form. 55 The ?n spacers and frame are suitably bonded , In the form of the invention illustrated in Figs. 6 and 7 the ?ns are formed in the manner 55 2 9,119,184 previously described, except that the bottoms of the tapered tubular projections 26 which corre spond to the projections l2 in Fig. 3 are punched out at 28 so that the telescoped projections pro vide a continuous tube through the grille struc ture. A convenient method of bonding this form of the invention consists in placing a wire or strip 30 of bonding material such as copper with in each tube formed by the projections 26 and 10 placing the structure in a hydrogen furnace. While it has been proposed heretofore to con struct ?n and tube heat exchange devices in a manner similar to that described in connection with the form of the invention illustrated in Figs. 6 and 7, it will be understood that the present invention provides a structure which has no func tion as a heat exchange device. Preferably, the fins may be of the order of one-half inch in width and the tapered tubular projections of the order 20 of one-fourth inch in diameter. These propor tions have been found to provide a grille which gives ample de?ection of the air passing there through, and provides a structure su?lciently strong to be used with openings of the largest 25 size normally encountered in commercial prac tice. While the form of embodiment of the present invention as herein disclosed constitutes a pre ferred form, it is to be understood that other 30 forms might be adopted, all coming within the scope of» the claims which follow. 35 ' What is claimed is as follows: 1. A grille comprising a plurality of ?n‘ ele ments bounded by a frame member, said ?n ele ments having projections extending therefrom, said projections being telescoped into_ adjacent projections and secured thereto, said ?n elements being uniformly spaced apart by said projections and dividing a ?uid stream adapted to pass through the grille into a plurality of segregated streams, each of said ?n elements having a por tion adjacent said projections pressed to sur round the projections and extend perpendicular to the axis thereof for increasing the structural strength or the grille intermediate its bounding frame, each of the ?n elements also having a curved portion extending outwardly away from the pressed portion thereof on each side of the grille, and the curved portion of the ?n elements 10 extending substantially continuously throughout the length of each element and parallel to the curved portion of adjacent ?n elements to direct the ?ow of ?uid through the grille. 2. A grille comprising a plurality of fin ele ments bounded by a frame member, said ?n ele mentshaving tapered tubular projections ex tending therefrom, said tapered tubular projec tions being telescoped into adjacent tapered tu bular projections and secured thereto, said ?n 20 elements being uniformly spaced apart by said projections and dividing a ?uid stream adapted to pass through the grille into a plurality of segregated streams, each 01' said ?n elements having a portion adjacent said tapered tubular 25 projections pressed to surround the projections and extend perpendicular to the axis thereof for increasing the structural strength of the grille intermediate its bounding frame, each of the ?n elements also having a curved portion extending 30 outwardly away from the pressed portion thereof on each side of the grille, and the curved por tion of the ?n elements extending substantially continuously throughout the length of each ele ment and parallel to the curved portion of adja 35 cent ?n elements to direct’ the ?ow of ?uid through the grille. ' JOHN KARMAZIN.