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Патент USA US3070207

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Dec- 25, 1962
Filed Sept. 15, 1960
Andrew .l. Musseirnan, 17M Coral Gardens Drive,
Fort Lauderdale, Fla.
Filed Sept. 15, 1969, Ser. No. 56,205
3 (Ilaims. (Cl. 189-46)
Patented Dec. 25, 1952
gated at 24, similar to the corrugations if». The flanges
24? are spaced apart a distance capable of permitting a
telescopic engagement with the ?anges 1d at assembly
or" the door whereby, the bevels 21 of the ?anges 24 have
a camming engagement with the bevels 17 of the shoulder
16 while the bevels 15 of the ?anges 14 have a camming
engagement with the bevels 23 of the ?anges 20 thus,
during the assembly of the door, the ?anges are forced
into relatively tight engagement with each other. The
This invention relates to metallic door structures where
in the elements constituting the inner and outer faces of
the door are formed in two substantially similar extru 10 several channel members it} and 11 are extruded from
a suitable material, such as aluminum and at assembly
sions to be initially secured together to form a hollow
constitutes a very rigid hollow door construction.
metallic door frame having parallel jamb members and
In the assembly of the device, the several extrusions
parallel header and sill members, all being formed of simi
constituting the outer face of the door are cut to the re
lar extrusions.
The invention contemplates a metallic door wherein a 15 quired length to form the stiles 6, the header 7 and the
metallic channel extrusion is assembled to form a ‘gen
erally rectangular frame that constitutes an inner side of
sill 8 and the members at their ends are beveled at 9
and welded together upon their inner sides thus, forming
a relatively rigid open frame that constitutes the outer
side of the door. The inner side of the door is formed
having telescopic engagement with each other to form a 20 of similar extrusions and assembled in the same manner,
with the weld being made at the mitered ends of the
generally rectangular rigid frame of hollow construction.
stiles, the header and the sill to thus form a rigid open
The door of the present invention is an improvement over
frame, being each one-half of the door to be constructed.
my United States Letters Patent No. 2,877,876, issued
After the frames it} and ill have been separately as
March 17, 1959.
Novel features of construction and operation of the 25 sembled, the corrugations i8 and 24 are coated with epoxy
resin and then the frame 1% or the ‘frame 11, as the case
device will be more clearly apparent during the course of
may be, is engaged in telescopic relation, with the ?anges
the following description, reference being bad to the ac
2t} overlying the outer sides of the ?anges l4 and, when
companying drawings wherein has been illustrated a pre
?rmly pressed together, the ?anges ill will be pressed into
ferred form of the device and wherein like characters of
?rm engagement with the ?anges 14 by the engagement
reference are employed to denote like parts throughout
of the bevels 21 upon the bevels 17, while the bevels 15
the several ?gures.
earn upon the bevels 23 to force the ?anges 14 into ?rm
In the drawings:
engagement with the ?anges 20. The corrugations 18
FIGURE 1 is a perspective view of an assembled door
and 24 have their apexes in engagement, forming rela
in accordance with the invention,
FlGURE 2 is a composite perspective view of a pair 35 tively small channels 25 that support a body of the resin
the door and a similar metallic frame assembled to con
stitute the outer side of the'door and with the two frames
to securely unite the ?anges 14- and 20 together against
displacement. The epoxy resin is well known for its
bonding qualities and, while the epoxy resin may be
FIGURE 3 is an enlarged transverse sectional view
adequate to securely unite the channel members fit and
taken substantially on line 3-3 of FIGURE 1.
Referring speci?cally to the drawings, the numeral 5 40 11 in their telescopic relation, it may be found desirable
with relatively heavy doors that rivets or the like be
designates the door as a whole, including stiles 6, a head
of telescopic channel members constituting the inner and
outer sides of the door and in separated relation, and
rail 7 and a sill rail 3. The several members constitut
ing the stiles, the header and the sill are substantially
passed through the ?anges to additionally bond them
it will be apparent from the foregoing that a very novel
identical extrusions and with the several rails being
form of door construction has been provided. The chan
mitered at the end portions for engagement with each
nels ill} and 11 are substantially identical with the excep
other as indicated at 9. With the construction shown,
tion that the ?anges 2% have the corrugations 24 upon
the frame for the outer side of the door is indicated at it),
their inner sides while the ?anges 14 have the corruga
while the frame constituting the inner side of the door
tions upon their outer sides. The spacing of the shoulders
is indicated generally at 11. The several frame members
constituting each side of the door are assembled and 50 16 and 2?. are equidistantly spaced from the marginal
edges 13 and 19. The construction provides a very novel
welded together along the miter line 5“ upon the inside
form of door that permits of the rigid assembly of an
of the frame, thus permitting of a relatively strong weld
outer frame member and a rigid assembly of an inner
joint upon the inner side of the frames that will avoid
frame and with the frame members being united together
any rough joint that is exposed to view.
by the telescopic engagement of the ?anges l4 and 2d,
Each of the frames is formed of extruded channel
coupled with the epoxy coated corrugations and the fore
members and with the outer frame embodying a ?at plate
ing of the flanges toward each other by the bevels l5, 17,
12., having marginal edges 13. The plate 12, inwardly
21 and 23. Also, the construction of the door permits
from the marginal edges 13, is provided with right angled
of the welding of the abutting ends of the frame mem
?anges 14, the marginal edges of which are beveled at 15.
The ?anges 14 at their point of connection with the plate 60 bers whereby to avoid any unsightly weld joints upon
12 are shouldered at 16 and the shoulder is inwardly and
upwardly beveled at 17, at an angle substantially identical
to the bevel 15.
The outer faces of the ?anges 14 are
corrugated at 13, for a purpose to be presently described.
The members 11 ‘constituting the inner frame member
are provided with the marginal edges 19. inwardly from
the marginal edges 19, the plate 11 is provided with right
angle upstanding flanges 29, the marginal edges of which
the outer faces of the frame members. The structure is
simple, exceptionally strong, is quickly and easily as
sembled from relatively simple extrusions and forms a
door frame that is rigidly held against sagging or twisting.
The ?anges 14 and 2%} will obviously be dimensioned in
accordance with the thickness of the door to be con
It is to be understood that the invention is not limited
to the precise construction shown, but that changes are
are beveled at 21. The ?anges 26 at their point of con
nection with the plate 11 are shouldered at 22 and the 70 contemplated as readily fall within the spirit of the in
vention as shall be determined by the scope of the sub
shoulder is downwardly and inwardly beveled at 23. The
joined claims.
inner faces of the ?anges 20 are longitudinally corru~
and a surface substantially parallel to the bevel on the
Having described my invention, what I claim as new
and desire to secure by Letters Patent is:
marginal edge of an adjacent ?ange whereby the ?anges
1. A metallic door made up of a plurality of rails con -
when shifted together cause the bevel edge of each ?ange
prising a pair of parallel stiles, a header and a sill, the
to earn into the groove of the shoulder to move the
said rails being substantially identical in cross-section, each
?anges forcibly toward each other.
of said rails comprising a front outer main channel sec
tion and a rear inner closure channel section, said front
3. The structure according to claim 1 wherein the con
fronting surfaces of each of said pairs of adjacent flanges
channel section being of U-shape in cross-section compris
including a plurality of spaced parallel V-shaped grooves,
ing an outer front w?l and a pair of inwardly directed
apex portions of the grooves on the pairs of ?anges being
?anges lying substantially perpendicular to said front wall 10 in alignment, and mastic disposed in opposed groove pre
and adjacent the outer edges thereof, the said rear chan
nel section likewise being of U~shape in cross-section, and
comprising an inner rear wall and a pair of ?anges lying
perpendicular to said rear wall, said last named ?anges
being so spaced from each other as to enter and telescope
in juxtaposed relation between the ?anges of the front
channel section, said ?anges being of substantially the
same length and maintaining said walls in spaced par
allel relation, and mating camming edge-and-groove
rneans formed upon adjacent pairs of the juxtaposed 20
?anges at their marginal edges and at their base portions
and forcing confronting surfaces of said adjacent pairs of
?anges toward contacting engagement throughout their
length when the two channel sections are telescoped.
2. The structure according to claim 1 wherein the mar 25
ginal edges of each ?ange are beveled and with each of the
?anges at their base portions being shouldered and with
the shoulders being provided with bevel grooves, said
grooves comprising one side portion of an adjacent ?ange
venting separation of said telescoped ?anges longitudinally
serrated ‘for their full length and the ?anges of the inner
section upon their inner faces are longitudinally serrated
for their full length, the serrations embodying a plurality
of relatively shallow V-shaped grooves and with the ser
rations of the several ?anges having mating engagement
where the apex of each serration is in alignment to form
a plurality of grooves for the reception of a bonding
References Cited in the ?le of this patent
Smith ______________ _.. May 16, 1876
Reilly _______________ __ June 2, 1914
Longley _____________ __ Mar. 6, 1956
Musselrnan __________ __ Mar. 17, 1959
France ___, ___________ __ Feb. 4, 1935
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