Патент USA US3086452код для вставки
April 23, 1963 J. w. WALDRON 3,086,442 CLOSURE BLADE FOR LOUVERS Filed Aug. 31, 1959 I I IIV ,I A INVENTOR JOHN W. WALDRON BY HIS ATTORNEYS United States Patent 0" "ice 3,986,442 Patented Apr. 23, 1963 2 extrusions forming the hollow members shown. As fur ther shown in FIGURES 1 and 2, the sill 114, jambs and 3,086,442 CLOSURE BLADE FOR LOUVERS head piece are provided with laterally extending ?anges John W. Waldron, Summit, N.J., assignor to Extruded 15, 1-6, 17 and ‘18 which are adapted to butt against a caulking or weather strip ‘19 mounted on the building structure 20 adjacent the opening 21 in which the louver frame ?ts thereby to e?lect a seal therewith. The building structure and the weather stripping is illustrative and Louver Corporation, Newark, N.J., a corporation of New Jersey Filed Aug. 31, 1959, Ser. No. 837,202 1 Claim. (Cl. 98—121) may be modi?ed and varied as the purpose demands. This invention relates to ventilating louvers ‘and the like for mounting in ventilating openings in building 10 structures and it relates more particularly to a novel form As shown in FIGURE 2, a plurality of essentially iden tical louver blades 22, 23 and so forth, are mounted within the .louver frame 10. The blades may be alumi of louver having ?xed blades for closing a portion of num extrusions, for example. On the front and back the ventilating opening in which the louver is mounted. of the blade 22, for example, are curved ribs 24 and 25 Ventilating louvers are usually constructed to ?t in openings which are designed into a building structure 15 which form sockets ‘r'or receiving the threaded ends of screws 26 and 27 inserted through the janrbs of the frame. and they must be built and ?tted to conform to the archi It should be noted that although the two screws 26 and tectural plans of the building. Frequently, such louvers, 27 are shown as extending between and through both in addition to their functional utility are included as a the inner and outer portions of the vertical jambs 11 and part of the ornamentation or design of the building and for that reason may be considerably larger than the 20 12, it may be preferable to have the screws extend only through the inner portions of the jambs to enhance the openings in which they are used. They may be used appearance of the louver structure. The outer portions sometimes where there is no ventilating opening. In such circumstances a portion of the louver structure may of the jantbs would serve to hide the screw heads so that no part of a fastener is exposed. Two screws at each end be blocked off by means of inserts, panels and the like. However, such panels alter the overall appearance of the 25 of each blade hold it ?rmly in position and against tilt ing relative to the -frame 10. Also, the blades 22 and 23 louver structure with the result that ‘desired ornamental effect is lost or modi?ed. In accordance with the present invention, a louver structure has been provided in which some of the blades are replaced by novel types of blades which enable a portion or all of the louver to be blocked off or covered without rendering the appearance of the covered portion have upwardly and downwardly extending ?anges 28 and 29 at their upper and lower edges respectively, and give a solid and attractive appearance to the louver structure. The shapes and sizes of the blades and the location of the ribs 24 and 25 thereon can be modi?ed, as desired. In accordance with the present invention, the lower, upper, or middle section, or all of the louver can be blocked out by means of the novel louver blades disclosed louver. Elements are included in the new blades which engage or ?t together to close the space normally present 35 in the lower portion of FIGURE 2. As shown, each of the louver blades 30 and 31 has an inclined midportion between the blades and at the same time provide the of the louver any different than the remainder of the appearance of normally spaced apart, inclined louver blades. More particularly, the new louver blades have front 32, for example, which corresponds generally in con ?guration .to the lower edge and midportion of the louver blade 22. A downwardly extending ?ange 33 on the and back con?gurations matching the other spaced louver 40 blade 30 corresponds to the ?ange 29 on the blade 22. blades of the louver, but the new blades have a laterally directed ?ange which engages the back of an adjacent louver blade thereby to close off the space therebetween. Also ribs 34 and 35 on the blade 30 correspond in shape and location to the ribs 24 and 25 of the blade 22. The blade 30 differs from the blades 22 and 23 by having an upwardly and ‘forwardly extending ?ange 36 at its Elements may be provided on the louver blade for en 4.5 rear or inner edge which engages the back of a blade 37 gagement with the ?ange on an adjacent blade whereby a tight joint is obtained therebetvveen and substantial st-ilfening and reinforcement of the structure is provided. \In accordance with the invention the closure ?anges on above it. Likewise, the upwardly extending ?ange 38 on the blade 31 engages the back of the blade 30 at a point adjacent the rib 35 thereon. ‘In order to stabilize the louver blades are so arranged that they are concealed 50 the blade 38 against wind forces and the like, the blades 31, 32, etc., may be provided with downwardly extend from view and hence, from the outer side of the louver ing ?anges 39 in spaced relation to the rib 35 to form a structure, it appears to afford spaces for flow of air groove 40 receiving the edge of the ?ange 39. A caulk ing compound or a caulking strip may be introduced For a better understanding of the present invention, reference may be had to the accompanying drawing, in 55 into the groove to seal the edge of the flange 39 to the adjacent blade although this usually is unnecessary. which: therethrough. FIGURE 1 is a view in horizontal cross section through The ‘blade 37 may be different from the blades 22 and 30. Its front and back surfaces may be similar to the a typical louver structure embodying the present inven front and back surfaces of blade 22 with the exception tion and a portion of the building structure in which that it has a downwardly extending ?ange 41 thereon to the louver is mounted; 60 term the groove 42 for receiving the upper edge of the FIGURE 2 is a view in section taken on line 2—2; and ?ange 39. It will be clear that the blades 30, 31, 37 and FIGURE 3 is a view in vertical section through a modi ?ed torm of louver structure. The louver chosen for purposes of illustration includes so forth, enable a part or all of the space within the louver frame 10 to be blocked off to thereby control the air ?ow space therein or to enable a totally closed a frame 10 provided with vertical jambs 11 and 12 65 louver to be used for ornamental purposes :where there formed of hollow aluminum extrusions or the like which are no ventilating openings in the building structure, if are connected at their upper ends by a hollow head piece desired. 13 and at their lower ends by a hollow sill ‘14. The ‘It will be understood that the new blades are suscept structure and arrangement of the elements of the frame ible to considerable modi?cation. Thus, as shown in 10 can be varied widely. For instance, the vertical jarnbs 70 FIGURE 3, the curved rib 43 forming the channel for receiving the locating screw 44 may be mounted on the 11 and 12, the hollow head piece 13, and the hollow sill 14 may be comprised of two mating and interlocking upwardly extending ?ange 45 of the blade 46. Other 3 3,086,442 4 arrangements of the screw receiving ribs can be made to of said blade portion toward the opposing surface of conform to the shape and appearance of the ventilating blades of the louver. Accordingly, it will be understood an adjacent blade, and means on said opposing surface of said adjacent blade engaging said ?ange and cooper ating therewith to close the space within said frame be tween said one blade portion and said adjacent blade. that the forms of the invention described are illustrative and not ‘limiting and that the invention is limited only by the terms of the following claim. I claim: References Cited in the ?le of this patent UNITED STATES PATENTS A ventilating louver for building structures compris ing a frame to ?t in an opening in a building structure, a plurality of louver blades mounted in said frame in spaced apart, substantially parallel relation, said blades having front and back surfaces inclined to the plane of the front of said frame, at least one closure blade mounted in said frame having a blade portion extending lengthwise ‘and transversely thereof in substantially paral lel relation to said plurality of blades and a front edge ‘adjacent to the front of said frame and a rear edge dis posed between the front and back of said frame, and a ?ange extending laterally from adjacent said rear edge 2,093,860 Austin ______________ __ Sept. 21, 1937 2,480,562 2,612,097 Ewing ______________ __ Aug. 30, 1949 Piollman ____________ __ Sept. 30, 1952 559,091 Great Britain _________ __ Feb. 3, 1944 FOREIGN PATENTS 10 OTHER REFERENCES Catalogue by Lon Sommerfeld, Inc., N.Y., 1953 (page 4 only).