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Патент USA US2119923

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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.
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