Патент USA US2119923код для вставки
June 7, 1938. D. J. MCINTYRE 2,1 19,923 COVER AND MOUNTING FOR VENTS AND THE LIKE Filed 001:. 25. 1937 2 Sheets-‘Sheet 1 DJ. McINTYRE June-7, 1938. D. J. MCINTYRE I 2,119,923 COVER AND MOUNTING FOR VENTS AND THE LIKE Filed Oct. 25, 1937 .2 Sheets-Sheet 2 DJ‘. MQINTYRE Patented June 7, 1938 2,119,923 UNITED STATES FATENT OFFICE 2,119,923 COVER AND MOUNTING FOR VEN'I'S AND THE LIKE Duncan J. McIntyre, Syracuse, N. Y. Application October 25, 1937, Serial No. 170,977 8 Claims. This invention appertains to vent construc tions, and more especially, to covers and mount ings therefor to be used with air inlets of sewer laterals which include a main house trap. The primary object of the invention is to pro vide an improved vent cover and mounting of simple, compact and rugged construction, which includes provision for preventing the entrance of sticks, stones and other foreign matter which ll) would tend to clog the vent and/or house trap if permitted to enter the vent pipe. Another object of the invention is to provide a means for facilitating the mounting of the vent cover on the vent pipe in such position that the 15 vent cover is normally spaced a predetermined distance from the end of the vent pipe, thereby positively assuring the free entrance of air through the vent cover into the vent pipe. Still another object of the invention is to pro 20 vide means for reinforcing the vent cover against forces tending to crush the same against the up per end of the vent pipe, and in its preferred embodiment, I attain this end by the same means which serves to normally space the vent cover 25 from the end of the vent pipe, as previously re ferred to. In preventing sticks and stones from entering into the vent pipe through the vent cover, I pref - erably employ a plurality of ba?le bars depending from the bottom side of the vent cover and hav ing oppositely inclined laterally projecting sur faces arranged at diiferent elevations relative to and below the usual elongated slots formed in the cover plate, such arrangement affording a maxi mum degree of protection against the passage of sticks and stones through the vent cover, while at the same time assuring compactness of form with a minimum degree of obstruction of the passage of air through the cover plate. Other and further objects and advantages of the invention will be hereinafter described and the novel features thereof de?ned by the append ed claims. In the drawings: 45 Figure 1 is a top plan view of a vent cover con structed according to my invention; Figure 2 is a transverse sectional view taken ap proximately on the line 2-—2 of Figure 1; Figure 3 is a top plan view of a collar constitut 50 mg a mounting for the vent cover shown in Fig ures'l and 2; and Figure 4 is a fragmentary vertical sectional view illustrating the application of the mounting collar and vent cover to the upper extremity of 55 a conventional vent pipe. (Cl. 182——31) Like - reference characters designate corre sponding parts in the several ?gures of the draw ings. In the usual plumbing system, the waste matter is ordinarily conducted through a lateral conduit 5 running below ground from the building to the sewer main which is normally located in the street below the street level. It has been the common practice to provide a main trap interme diate the sewer main and the building, such trap being vented by extending a vent pipe upwardly from the trap to the ground level, or to a point slightly above the ground level. This vent pipe ordinarily is located so that it projects upwardly through the sidewalk, or at some point between the sidewalk and the curb line. Generally, the arrangement is prescribed by sanitary regulations or codes, and these regulations or codes ordinarily require the use of a vent pipe having a diameter of at least four inches, and a cover for the upper 20 end of the vent pipe which is so constructed as to provide an air space through which air may enter the vent pipe, and the area of which air space is not less than the area of the‘ four inch vent pipe. I am aware that various vent pipe covers fully complying with these regulations have been employed, and in many instances, pro vision has ‘been made to prohibit the entrance of sticks, stones and other foreign matter into the vent pipe through the cover. In these latter cases, however, the covers have not proven to be practical largely because of their complicacy and/or increased cost. I am not aware of any type of cover having provision for preventing the passage of sticks and stones therethrough, which 35 would ful?ll the usual requirement for the free passage of air therethrough without necessarily substantially increasing the size of the cover over and above the standard sizes commonly employed without regard to, the clogging protection feature above referred to. Size is, of course, of consider able importance in devices of this kind, since the appearance, strength, cost, etc. are directly af fected thereby. The larger the size of the cover, themoreunsightlyit becomes,having in mind that the covers are exposed to view. Moreover, if the vent pipe projects above the ground level, as many times is the case, a large cover would in crease the hazard produced thereby through rea son of creating a stumbling block over which chil dren or pedestrians might trip. Referring now to Figures 1 and 2 of the draw ings, l designates generally my improved vent cover which preferably has the form of a cir cular plate having a plurality of elongated slots '21} V 2,119,923. I 2 formed therein in spaced relation to each other and running substantially parallel across the plate. As in the usual'vent cover, these slots 2 provide a mounting collar 5 having a form which will be best understood from reference to Figures are of su?icient size that the total area thereof is provided with an annular recess M in its upper face in which the cover plate I is adapted to be ;is_ at least as great as,’ if not greater than, the cross-sectional area of a standard four inch vent . ' pipe. At diametrically opposite points in the cov- 7 er plate‘ I, I provide apertures 3, 3 for the re ception of suitable fastening means such as 3 and 4. The head l3 of the mounting collar 5 seated. The depth of the recess is approximately equal to the thickness of the cover'plate, so that when the latter is seated in the recess, the upper face of the cover plate will lie flush with the upper end .of the mounting collar 5. Inwardly project 10 "I to itsmounting, generally designated’ 5, and by ,ing diametrically ‘opposed lugs or bosses I5, [5 10 screws 4, 4 which serve to secure the cover; plate meansof which thercover plate‘is mounted on the" are provided within the head. I3 of the mounting upper end of the vent pipe, generally designated ' collar 5, and these bosses’ have tapped openings [6; IE :to receive the fastening screws 4, 4 which 6, as shown in Figure 4.v Between the slots 2 in the cover plate I, the I serve to secure the cover plate I to the mounting 15 material of the cover plate, which is preferably. collar, as will be best understood fromreference 15 , composed of metal, has the form of bars 1, thus to Figure 4; The heads of the fastening screws 4,14/are preferablyv countersunk in the cover plate the lower side of the cover plate I, and prefer I so that the entire assembly will present a per 20 fectly'?at smooth'surface at its upper end. Depending below the head- l3 of the mounting 20 ably formed integrally with the bars 1, 'I provide ' wardly therefrom substantially: normal to the‘ a plurality of ribs or webs 8;"whichproject down collar 5, is a sleeve o-r skirt I‘! having a‘diameter 7. ‘ The-lower extremity of somewhat larger than the diameter’ of’ a standard 'each ribor web‘ 8 is enlarged, as at~9, so that it vent pipe-generally designated 6 in Figure, 4.: The has ‘a. generally triangular shaped cross-section,‘ lower extremity l8 of the sleeve or. skirt Hispref~ thus providingllaterally projecting, oppositely in-i erably turned inwardly for a purpose which will ' clined bailie surfaces l0 and -I l at the, respectively hereinafter more fully appear. As'inthe case opposite sidesof the ribs or webs‘8.' As best seen of thecover plate I , the'mounting collar 5 is prefin' Figures 2 and-4, the baffle surfaces l0, and,“ erably composed‘ of a one-piece vmetal casting, the, are substantially spaced below the slots 2 in the head [3 of which is’ tapered‘ downwardly and in; wardlyso as tomerge with theintegral skirt=or= ' cover plate I, and each ba?lesurface extendsrlate ' , , erally substantially to. a'pointibelow the center sleeve l'l.. In applying the mounting collar "5 to the-vent of the slot 2 lying above the same; or about mid pipe, 6,'the sleeve or skirt l'lfis- slipped over the way to the next rib. ' , . l V ' " In order to’ permit air to enter the slots 2 and endiof the vent pipe far enough to cause the lower l plane of the cover plate. , ribs or webs 8 and around the ba?le surfaces 9 face of thecentral rib 8-.of the, cover plateaslp-to abut ‘against ‘the upper 'edg'e'of the. vent? pipe and ill, the ribs or webs‘8' are preferably of dif .when the cover plate is secured in position ‘on the ferent heights, thus disposing the baf?e surfaces upper end of the mounting _.collar.- In. practice, the cover platesl is applied: onto the ‘mounting collar 5 before the mounting collaris slipped: onto the vent pipe 6, and as the skirt orsleevell'l of; pass freely downwardly therethrough between the 40 In and. H at the lower'extremities of the respec tive ribs or webs 8 at-differ‘ent elevations. As shown in Figures 2 and 4, the centralribior web ' extends substantially below each of the others, the mounting collar is slipped onto the vent pipe,v and the: ribs :at respectively opposite sides thereof the central rib 8' of the cover plate will act. as a are . progressively . shorter in. height‘. Thus the‘ , space I2 between ‘any two adjacent baf?e surfaces l0 and l I, and between the respective baffle sur» faces and their nearest rib oreweb 8, is preferably vnot'appreciably less than the width'of each slot 50. ' 7 forming a grate-like structure; . Dependingfrom . 2,.thus permitting thevfr'ee'passagerof air through the ‘slots 2 and downwardly past the baffle ‘sur faces: without substantial-Iobstruction > or inter ference withv such free ?ow.’ ,As shown in the ' drawingathe construction of-thevent cover de 25' ' 30 gauge through its abutting engagement with‘ the upper edge of the vent pipe across whichthe rib extends diametrically. Thus, the, centralf-irib positively prevents'the mounting collar. 5 ‘from being moveddown'too-far on the end of the vent. pipe, and assures the proper’ positioning of the,’ 56 collar on the vent pipe. When the icollarhas' been positioned as just» described,lthe cover plate I may then. be removed to permit the collar‘ to besealed around-theupper end. of the vent pipe. 55 scribed above is' the same at one:-side;of;a plane- passing vertically through the center of‘the cover’ Any suitable packing materialmay be employed to-establish this seal, but I preferably pour molten ' 'as at the other vside, ,so that the ribs and. the‘ lead between the skirt or sleeve I‘! and the vent pipe, as indicated, at l9,in..Figur-e 4:,v After the thereof are arranged in pairs, the corresponding molten'lead has cooled and hardened, the mount 60 ribs of each’ pair. beingrespectively locatedat~ ing‘collar 5'will be rigidly secured to the ‘vent 60 opposite sides of ‘the center of the plate, and the . pipe, and all that is necessarygto- be done to,compairs, of ribs dependingdifferent distances below plete the installation- of the. vent-cover is toapply baffle surfaces formed at the lower extremities the cover plate. As- will'b'e best understood from reference‘ to Figure 1, 'the' ribs- or- webs- 8-run lengthwise of the bars v‘l of the cover- plate, but terminate at'their opposite extremities somewhat inwardly of the peripheryrofithe cover plate; , The cover‘plate is preferably‘constructed as a one piece casting of brass, aluminum, iron or other 707: metal, but it is to be understood that I do not wish to be limited to any, particular» material. since the‘ materialg may be varied; as circum stances require or permit; > v . .To facilitate theg‘mountingofthe cover plate the cover plate I to the upper end of theJcollar and fasten the same to the collar. by means of the screws 4,.4. When-the cover-plate I is somount 65 ed, the lower.end~;of the. central rib. 8.,will bear upontheupper edge ofthe vent pipe 6.». arrangement has a distinct advantaga-especially when the upper face of-ttheucover. plate! Land mounting-collar} are set ?ush in‘. the ground -.or, 70 pavement where heavy bodies such astrucks or other vehicles may run over thersame; 'Should a~v heavy weight be imposed. uponithe upper end; of the mounting collar 5 orwupon the-upper‘face. 1 I ion’, theupper end of event pipe; preferably of the cover plate I, the ipa’ckingnldwould be: V 3 2,119,923 loosened from the outer face of the vent pipe 6 or from the inner face of the skirt or sleeve H, and the mounting collar 5 would be forced down onto the end of the vent pipe excepting for the fact that this is effectively prevented by reason of the abutting engagement of the lower end of the central rib 8 with the upper edge of the vent pipe 6. Moreover, in addition to more effectively sus taining heavy weights which may be imposed 10 upon the vent cover, thereby eliminating the like lihood of breaking the seal between the skirt of the mounting collar and the vent pipe, breaking or ‘crushing of the cover plate I is minimized through reinforcement of the cover plate which 15 is afforded by the plurality of ribs 8, and partic ularly, by the central rib which bears on the upper end of the vent pipe 6. I have found that my vent cover is better able to withstand crushing forces, and there will be considerably less break 20 age of the cover plates than is the case where the ordinary vent covers of the plain slotted or perforated plate type are employed. This fea ture alone is of great importance, and the utility and advantages of my improved vent cover are 25 further enhanced by the employment of the baffle ribs terminate at different distances below th cover member. ' 3. A device as claimed in claim 1, wherein the ribs progressively terminate at different distances below the cover member with the highest rib disposed substantially at the center of the cover member. 4. In a device of the class described, a collar member having a diameter somewhat greater than the diameter of a vent pipe or the like and adapted to be mounted thereon, a cover member adapted to be positioned across the open end of the collar member, said‘ cover member having a plurality of substantially parallel slots therein extending transversely across the cover member 15 with their opposite ends terminating adjacent to the periphery of the cover member, said slots forming bars therebetween constituting a grate~ like structure, and ribs depending from the bars aforesaid and terminating at their lower extrem 20 ities in the form of enlargements substantially ~ triangular in cross-section whereby to form on positely inclined baflle surfaces extending, later surfaces In and II formed at the lower extremi ties of the ribs 8, and which are so arranged as to prevent the insertion by mischievous chil ally in opposite directions from each rib, the ba?ie surfaces aforesaid being spaced below the 25 slots and terminating laterally substantially mid way between the ribs and in spaced relation to the contiguous baii‘le surfaces whereby to provide a dren of sticks, stones and other foreign matter space therebetween at least as great as the area 30 through the vent cover, while at the same time affording a passage of a size equal to the full area of the vent pipe for the free circulation of air through the vent cover. Not only does the vent cover prevent deliberate or purposeful attempts 35 to insert sticks, stones and the like through the vent cover and into the vent pipe, but it also pre vents such materials from gaining access to the vent pipe by accident or otherwise, as where the vent cover becomes submerged due to a, heavy 40 rain, or melting snow or ice; In fact, my inven tion may be effectively used as a drain cover, in which case water or other fluids may freely flow through the cover plate while prohibiting the entrance of solids which would tend to clog up 45 the drain. While the speci?c details have been herein shown and described, the invention is not con ?ned thereto, as changes and alterations may be made without departing from the spirit thereof 50 as de?ned by the appended claims. Having thus described my invention, what I claim as new and desire to secure by Letters Pat ent is 1. In a device of the class described, a collar 55 member having a diameter somewhat greater than the diameter of a vent pipe or the like and adapted to be mounted thereon, a cover member adapted to be positioned across the open end of the collar member, said cover member having a 60 plurality of openings therein arranged in spaced relation to each other and forming bars there between constituting a grate-like structure, and ribs depending from the bars aforesaid and each terminating at its lower extremity in the form 65 of an enlargement substantially triangular in cross-section with two of the vertices respectively disposed at opposite sides of the center of the rib and in the same plane, whereby to form op positely inclined ba?le surfaces extending later 70 ally in opposite directions from each rib. 2. A device as claimed in claim 1, wherein the 30 of the slots. 5. The combination with a vent pipe or the like, of a collar member having a larger diameter than the vent pipe and adapted to be mounted thereon and around the exterior of the end of the vent pipe, a cover member having a plurality of open 35 ings therein adapted to be positioned across the open end of the collar, and means‘ depending from the lower side of said cover member for abutting engagement with the end of said vent 40 pipe. 6. The combination with a vent pipe or the like, of a collar member having a larger diameter than the vent pipe and adapted to be mounted there on, a cover member having a plurality of open ings therein adapted to be positioned across the 45 open end of the collar, and means depending from the lower side of said cover member for engaging ' the end of said vent pipe, said last named means comprising a rib arranged normal to the plane of the cover member and extending transversely 50 thereacross and within the collar member. 7. A device as claimed in claim 1, wherein the ribs terminate in pairs different distances below ' the cover member, one rib of each pair being lo cated at the opposite side of a vertical plane pass 55 ing through the center of the cover member from the corresponding rib of the same pair. 8. A cover for vent pipes and the like, com prising a plate having a plurality of spaced sub stantially parallel slots provided therein’ and 60 forming bars therebetween constituting a grate- ' like structure, ribs depending from the lower side of the bars aforesaid and terminating at differ ent distances therebelow, the lower extremity of each rib being provided with oppositely inclined 65 laterally projecting baflie - surfaces terminating substantially midway between the ribs and form ing passages therebetween, the total area of which is substantially equal to the combined areas of the slots. 70 - DUNCAN J. MCINTYRE.