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Патент USA US3080818

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March 12, 1963
J. A. POTTER
ROOF VENTILATOR
Filed May 23, 1960
2 Sheets-Sheet 1
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March 12, 1963
J. A. POTTER
3,080,808
ROOF VENTILATOR
Filed May 25, 1960
2 Sheets-Sheet 2
INVENTOR.
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I
BY
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.47'7'0E/VEY
3,080,808
United States Patent
Patented Mar. 12, 1963
2
1
details of assembly of one of the outer curb-attaching
3,080,808
means of the present structure.
‘FIG. 5 is a similar view showing the details of assem
ROOF VENTILATOR
John A. Potter, 16637 Barbee St., Fontana, Calif.
Filed May 23, 1960, Ser. No. 31,090
4 Claims. (CI. 98—42)
This invention relates to roof ventilators particularly
for large industrial and storage buildings.
'bly of one of the middle curb-attaching means.
FIG. 6 is a perspective view of one of a complement
of gutter-supporting elements used in the ventilator.
FIG. 7 is an enlarged cross-sectional view of an ele
ment of the outer curb of the ventilator.
‘ The'ventilator that is illustrated is shown with three
Present ventilators for such buildings are either fac
tory assembled or assembled at the site of installation. 10 units--two side units 10 that are similar but opposite,
and a middle uni-t 11 from which the side units extend.
In either case, the same weigh three hundred seventy
?ve to ?ve hundred pounds and require special heavy
duty equipment to raise into assembly position on the
roof. Also, fastening such heavy units to structural
The triple-unit ventilator is, of course, exemplary, since
two units, instead of three, may be used where a smaller
air-venting capacity will serve, or more than three units
members of the roof truss can be accomplished only from 15 used if the size of the building being served warrants the
same. A triple-unit ventilator, it is thought, will suf?ce
below since the bulk of the assembled ventilator units
in the large majority of installations.
prevents access from above. Thus, scaffolding, use of a
As shown in FIGS. 1 ‘and 2, the three units 10 and
bo-atswain’s chair, or other dangerous and costly~to-use
11 may ‘be designed with the middle unit 11 level and
suspension means, must be resorted to to support a man
20 the side units 10 sloping at a flat pitch from the middle
in position to fasten a ventilator in place.
outward with a shallow included angle therebetween.
An object of the present invention is to provide a ven
Such an arrangement insures eiiicient drainage of precipi
tilator of the character referred to that is adapted to be
tation,
as will be clear.
'
made up of sub-assemblies that may easily be handled
The present triple ventilator is adapted to be mounted
by a small hoist or be raised by hand and are of such
on the roof of an industrial building over an opening cut
small handleabrle size that the same can be easily hoisted
or provided in said building and to be a?ixed to outer
through the roof opening over which the ventilator is to
longitudinal structural members 12 of the roof structure
be installed, thereby, greatly facilitating fastening of the
or truss and the middle longitudinal structural members
Nentilator in place as well as obviating the need for mov
13. Thus, four roof members are required for mounting
ing the same from the eaves to the place of installation,
as would be required were the ventilator raised from 30 a triple-unit ventilator; three for a double-unit ventilator;
and ?ve for a four-unit device, etc. In this case, the
the outside. In multiple buildings, where such distances
roof members 12 are shown as channels and the mem
are great, the advantages of the latter object are quite
\ ers 13 as I- or H-beams.
marked.
‘
>
Another object of the invention is to provide a roof
It will be understood that the
roof members 12 and 13 are ?xed members and that the
ventilator that may be made as two or more transversely 35 manner of their mounting is not material.
applied units that, by means of novel center and outer
curb-clamping means, may comprise a ventilator twenty
to thirty feet in width and of indeterminate length, ac
cording to the requirements of the building on which
‘applied.
A further object of the invention is to provide a roof
ventilator that is sectional, transversely, i.e., made up of
two or three units or sections (three being preferred),
and of such design, longitudinally, that the sections may
The present
ventilator is ai?xed to and, therefore, supported by such
roof members.
The present ventilator comprises, generally, two outer
curb assemblies‘ 15 adapted to be longitudinally mount
40 ed on and affixed to the roof members 12; two middle
curb assemblies 16 adapted to be longitudinally mounted
on and a?ixed to the roof members 13; end support as
semblies 17, one at each end of the ventilator; an end
plate 18 enclosing each assembly 17; gusset means 19
be made as a continuous structure for separating venti 45 mounted on the curb assemblies 15 and 16 and connected
lating air from outside precipitation and for shedding
such precipitation by directing the same to the outside of
the ventilator assembly.
This invention also has for its ‘objects to provide such
means that are positive in operation, convenient in use,
easily installed in a working position and easily discon
nected therefrom, economical of manufacture, relatively
simple, and of general superiority and serviceability.
‘The invention also comprises novel details of construc
tion and novel combinations and arrangements of parts,
which will more fully appear in the course of the follow
ing description, and which is based on the accompanying
drawings. However, said drawings merely show, and the
following description merely describes, one embodiment
of the present invention, which is given by way of illus
tration or example only.
>
-
In the drawings, like reference characters designate
similar parts in the several views.
I
to the end support assemblies 17; middle support assem
blies 20; gusset means 21 ‘also mounted on the curb
assemblies 15 and 16 and connected to the middle sup
pont assemblies; bolt means 22 interconnecting the gusset
50 means 159 and 21 with the outer and middle curb assem
blies 15 and 16; a top drain gutter 23 disposed longi
tudinally of each unit 10 and 11 and carried by the
middle support assemblies 20 of said units; a similarly
disposed bottom drain gutter 24 also carried by said mid
dle support assemblies; bot-tom baiiies 25 carried by the
end support assemblies 17 of said units 10 and 11 and
cooperating with the end plates 18 to de?ne a drain-for
precipitation collected at the sides of the ventilator; cen
ter gutters 26 extending between adjacent middle assem
blies 20 and between the end assemblies 17 and the ad
jacent assemblies 20; a splash shield 27 at the discharge
end of the gutters 26 that terminate at the sides of the
side units 10; and side closure walls or caps 28 that
cooperate with the support assemblies 17 and 20 that
65 are at the outsides of the units 10 to de?ne a water dis- I
tilator according to the present invention.
charge passage 29, one at each side of the ventilator.
FIG. 2 is an enlarged longitudinal sectional view of
Each outer curb assembly 15 comprises a length of
the left sect-ion of said ventilator, the view being taken
curb ?ashing 35 that is adapted to be a?ixed to channel
on the plane of the line 2—2 of FIG. 3.
12 in any suitable way. The same has a W cross-section
FIG. 3 is a similarly enlarged side elevational view
FIG. 1 is a semi-diagrammatic end view of a roof ven
with the outer side wall or cap broken away to show the 70 of which a web 36 constitutes a clamp wall, and a ?ange
37, a stiffener for said wall. Each assembly 15 also com
interior of the ventilator.
prises a channel 38 that cooperates with web 36 to clamp .
FIG. 4 is a fragmentary perspective view showing the
3,080,808
.
4
3
With the assemblies 17 and 20 in place, it is a simple
matter to install the longitudinally sectional center gut
the gusset means 19 and 21, as will later be seen and as
shown best in FIGS. 2 and 4.
Each middle curb assembly 16 comprises two similar
ters 26, as in FIG. 3.
To insure that said gutters 26
clamping channels 39 that are provided with longitudig
discharge as do the other gutters, the splash shield 27 is
nally extending grooves 40 which engage the upper ?anges
provided to span between the assemblies 17 and 20 and
between two assemblies 20. It is into the discharge pas
of the I-bearns 13 so that said channels are in,back~to
back clamping engagement with gusset means 19 and 21,
sages 29 at each side that the troughs and gutters above
as in FIGS. 2 and 5.
described discharge, the same being enclosed by the side
‘
g
‘
Each end support assembly 17 comprises a set of par
walls 28, as shown in FIG. 2.
While only a short length of ventilator is shown in‘
tition plates 41, each of which has an upper outer slop 10
FIG. 3, the means shown may be repeated many times to
ing edge 42, a vertical outer edge 43, a lower sloping
provide a construction that has a large number of gut
edge 44, an inner edge 44a, and a gutter-engaging hook
ters. The ends shown will be the same, but the assem
45. One of said plates 41 is shown in FIG. 6 and, as
blies 20 will be multiplied as will the gutters 23, 24 and
indicated in FIG. 2, each side unit 10 is preferably pro
vided with three such plates at each end thereof. The 15 26. Since the length of the ventilator may vary, the
closure plates 28 may be made up in sections and held
middle unit 11 is preferably similarly provided with six
together by splicing means shown at 55. The corners
partition plates 41, three at each end. Thus, in the
of the plate sections at the ends are preferably made to
triple-unit ventilator shown, eighteen partition plates 41
conform to the top slopes of the plates 18. The inter
Each end plate 18 is formed to be a?ixed to the edges 20 mediate plate sections may be rectangular so that the
splices 55 may connect them. FIG. 3 also shows that
42 and 43 of the partition plate 41at eachend, ‘as can
the ventilator units 10 and 11 are each symmetrical on
be seen in FIG. 3. Thus, said plates 18 constitute end
both sides of a central plane that extends through the‘
closures for the ventilator. At the top, each‘ end plate
gutter 26.
has a reinforcing bent portion 46 and, at the bottom,
As can be seen in FIG. 3, the arrows 55 which may
each end plate 18 is extended at 47 to extend below the 25
lower edges of the partition plate. This ‘relationship
be reversed to travel outward instead of inward, indi
cate the path of movement of air through the ventilator,
is clearly shown in FIG. 3.
,
‘I
are
provided.
_
U
_
‘
p
,
. The gusset means 19 is connected to the partition plates
it being clear that the construction provides for intercep
through, the baf?es 25, said means 19 comprising gusset
tion of precipitation and free movement of air, in either
plates 48that extend between the clamp webs 36 and 30 direction, between the top and bottom of the ventilator.
channels 38 of the outer curb assemblies 715, and gusset
Such seals, mastic, insulation, etc., that may be advan
tageously employed, may be used in any suitable way and
plates 49 that extend between the channels 39 of the
do not affect the concepts of this invention.
middle curb assemblies 16. There are two gusset plates
While the foregoing has illustrated and described what
49 at each assembly, 16 at each end of the ventilator.
is now contemplated to be the best mode of carrying out
Each of the middle support assemblies (here ‘shown as
a single assemblylcomprisestwo partition plates 41 with
the invention, the construction is, of course, subject to
modi?cation without departing from the spirit and scope
their edges 43 clamping between them splash shield means,
here shown as splash plates 50 that, except that they
bf the invention. Therefore, it is not desired to restrict
the invention to the particular form of construction illus
terminate at the top in ‘a small ?angeSl instead of the
top sloping portion of end plates 18, are ‘similar to the 40 trated and described, but to cover all modi?cations that
latter plates, In other respects, the assemblies 20 are
may fall within the scope of the appended claims.
Having thus described this invention, what is claimed
practically double assemblies‘1'7 and the plates‘ 41 there
of are formed to have edge portions similar to the per
and ‘desired to be secured by Letters Patent is:
tions 42, 43, 44, 44a and 45 described above.
7
, The gusset means 21 is connectedto the partition plates
‘
1. A roof ventilator comprising at least two longitudi
nal'v‘en'tilat‘or units in end-to-end arrangement and each
provided with a set of vertically spaced, staggered and
41 of the assemblies 29 through ‘the bottom gutter 24,
similar to the‘arrangement described in regard to assem
transversely disposed precipitation-draining gutters that
blies 17 and gusset means 19.
are spaced to produce air-venting passages between the
,
_
,
v
It will be evident, therefore, that eachassembly 17 and
top and bottom of the units, and means to mount said
20 may be separately assembled‘at the factory or ‘at the 50 twouuits to include a shallow angle between the units
job site, on the ground, and hoisted into place by ‘insert
where the ends of the same join, whereby the gutters of
ing the ‘ gusset plates intothe indicated positions ‘at, the
one, unit are disposed at said angle relative to the gutters
outer, and middle curbs. Byproviding the lower'edges of
of_ the other unit, each unit being ‘symmetrical on both
the gusset plateswithV-notches 52 and setting the's‘ai’ne
“sides of a plane extending ‘vertically and longitudinally
over the bolt means 22, as shown in FIGS. 3, 4, and 5, 55 through the upper gutter.
and, then tightening said‘bolt means, the assemblies may
2,. ‘A roofventilator comprising three end-to-end longi
be locked in place onto the curbs 1,5 and 16. Of course,
the gussets 48 maybe ?rst ‘so assembled onto the curbs,
and then the different gutters, baf?es and'assemblies 17
tudinal ventilator units each provided with a set of vera
objects of the invention.
angle between the units where the ends of the outer units
join the middle unit, so that the gutters of said outer
tically spaced, staggered and transversely disposed pre
cipitation-draining gutters that are spaced to produce air’
and 20 successively bolted one to the other until ?rial 60 ‘venting passages between the top and bottom of the units,
assembly is achieved. In either case, the work cangbe
the middle unit and the troughs thereof being level, and
accomplished expeditiously and safely, according to the
means mounting the two outer units to include a shallow
.
,
Whether separately applied or ?rst connected to the as,
semblies 17, the top and bottom gutters 23 and 24 extend 65 units ‘are disposed at a precipitation-draining angle rela
transversely of the ventilator in three, sections (for a
tive to the gutters of the middle unit, each unit being
triple-unit device) that overlap so that the gutters of
symmetrical on both sides of a plane extending vertically
the middle section 11 discharge onto those of ‘the side
and longitudinally through the upper gutter.
sections 19. ,The above is true also of the disposition
3. A roof ventilator according to claim 2 in which the
and overlap of the sections of the battles 25. In this case, 70 ends of the ‘gutters in the middle unit are extended to
the bottom walls 53 of the ba?ies join the mentioned ex
overlap beyond the adjacent ends of the outer gutters.
tensions 47 of the ‘end plates 18 to form troughs 54 along
4. In a roof ventilator having an air~venting structure;
which water?ows to be discharged at the sides of the
parallel, angular, longitudinal members of a building
ventilator. Gutters 23 and 24 discharge in the same
roof; a vertical support-plate means for mounting the
way, i.e., at the sides.
75 ventilator on>said~ longitudinal members, clamping dc.»
3,080,808
5
vices having a pair of angular members each of which
has a vertically disposed web that is in spaced and par
allel relation with the web of the other member of the
pair, said clamping devices being secured to said angular
longitudinal roof members with said webs of the clamp
ing devices parallel to said longitudinal members, at least
two of said clamping devices having an outer disposition
along the sides of the ventilator, one member of each
of the latter clamping devices comprising a portion of a
length of W-sectioned sheet metal which is attached to 10
an outer roof member and the other member comprising
a channel, the vertical~supp0rt plate means having their
lower edges between the webs of the clamping devices
and having their upper portions extending upwardly for
6
supporting the air-venting structure, and bolt means con
necting the webs of the clamping devices to clamp said
lower edges of the plate means between said webs.
References Cited in the ?le of this patent
UNITED STATES PATENTS
226,625
1,569,060
Pardessus ____________ __ Apr. 20, 1880
Wright _______________ __ Jan. 12, 1926
1,850,793
2,404,961
2,687,685
2,784,660
2,868,104
2,944,781
Hawes ______________ .._ Mar.
I-loch ________________ __ July
Knutson _____________ __ Aug.
Johnson _____________ __ Mar.
Honholt ______________ __ Jan.
Masters ______________ __ July
22,
30,
31,
12,
13,
12,
1932
1946‘
1954
1957
1959
1960
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