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Патент USA US2410999

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NOV. l2, 1946.
_1_ |-|_ RÈlSNER
BULKHEAD CONDUIT SUPPORT AND SEAL
Filed NOV. 16, 1942
10
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t
10E
2,410,999
Patented Nov. 12, 1946
2,410,999
UNITED STATES PATENT OFFICE
2,410,999
BULPÃHEAD CONDUIT SUPPORT AND SEÀL
Joseph Henry Reisner, Hagerstown, Md., assign
or to Adel Precision Products Corp., a corpora
tion of California
Application November 16, 1942, Serial No. 465,777
5 Claims.
l
(Cl. 285-30)
Z
This invention relates in general to conduit
supports for aircraft and more particularly per
tains to an especially constructed device for sup
the bonding strip into good. contact with the con
porting a conduit line on an aircraft. bulkhead or
with such other objects and advantages as may
subsequently appear, the invention resides in the
wall through which the conduit line is extended.
An important object of my invention is to pro»
vide a conduit line supporting and cushioning de
vice of the character described which will her
metically seal the conduit accommodating-open-~
duit and the body portion.
With the foregoing objects in View, together
parts and in the combination, construction and
arrangement of parts hereinafter described and
claimed, and illustrated by Way of example in
the accompanying drawing, in which:
ing in a bulkhead or wall of a pressure sealed 10
Fig. l is a front elevational view of a bulkhead
cabin or compartment in an aircraft or seal the
conduit support and seal embodying my inven
conduit> accommodating-opening in any member
tion, as when installed, the conduit being shown
or support where a seal- .is desired..
in cross section;
Another object of my invention is to provide a
Fig. 2 is a vertical sectional view taken on the
bulkhead conduit support of the character de
line 2~2 of Fig. 1;
,
scribed having a cushioned and vibrationfabsorb
Fig. 3 is a perspective view of the cushion-bond
ing seat for the conduit line which prevents the
ing strip assembly showing the inner face of the
lineA from contacting the bulkhead and protects
the line- from wear as well as forms a fluid-tight
seal around .the conduit and the conduit-receiv
ing lhole in the bulkhead.
A further object is to provide a conduit sup
port of the character described in which a bond
ing strip- is provided for electrically bonding the
conduit line to the bulkhead or wall to prevent
accumulation of static electricity in the line.
Yet another important object of my invention
is to provide a bulkhead conduit support such as
cushion;
Fig. 4 is a perspective view cf the cushion
f bonding strip assembly showing the outer face of
the cushion ;
Fig. 5 is a vertical sectional view taken on the
line 5»«5 of Fig. 6 of a modified form of my in
vention;
Fig. 6 is a sectional View taken on the line 6-6
of Fig. 5;
Fig. 7 is a. horizontal sectional view taken on
the line 'l-l of Fig. 3.
described hereinbefore which makes it unneces
Referring to the drawing more specifically, A
sary to use special iittings, couplings or connec« 30 designates a metallic bulkhead or wall or mem
tions and a sectional conduit line where said line
ber as provided in an aircraft, for example, for
-passes through the wall or bulkhead, all to the
a cabin or compartment which is hermetically
end that fewer parts are required, a marked
sealed to retain requisite pressure for high alti
reduction in weight is effected, a continuous line
tude flying or other purposes, there being a con
through the wall or bulkhead isv made possible,
- duit supporting and sealing device B embodying
a quicker and easier installation of the line is
my invention, bolted to said bulkhead for sup
assured, and >provision made for absorbing vibra
porting a conduit line C which `is extended
tion in and preventing wear of the conduit line.
through the bulkhead, the device B also provid
An additional object of my invention is to pro
ing
a hermetic seal where the conduit penetrates
vide a conduit support of the character described 40, said bulkhead.
l
wherein a bonding strip is provided with por
In accordance with my invention the conduit
tions for engaging the conduit line, a metallic
support and Seal B generally includes a form re
conduit-encircling body portion, and the metal
wall or bulkhead of the aircraft, respectively, to
taining and somewhat rigid body portion 'l which
is secured by bolts 8 and nuts 9 to the bulkhead
or wall, and supports a conduit-embracing
cushion l0 held in place and under compression
Yet another object is to provide a conduit sup
by means of said body portion, so that the cushion
port such as described in which the metal bodyis clamped against the bulkhead and around the
portion is made in sections to facilitate a quick 50 conduit to form a hermetic seal relative to the
and easy installation thereof and to make pos
conduit and conduit-receiving opening Il in said
sible the clamping of the cushion under com
bulkhead, while at the saine time serving as a
pression on the conduit line, and against the
vibration absorbing conduit seat which spaces the
wall or bulkhead thereby assuring the hermetic
conduit from contact with the bulkhead and body
sealing action of .the cushion and also forcing 55 portion and protects it from wear and damage.
insure an efficient electric bond between the con
duit line and ythe metal structure of the aircraft.
2,410,999
3
gaskets I3.
4
inner surface of the associated section of the body
portion 1. These portions of the bonding strip are
forced by the bell-shaped cushion into close and
eiîective iiatwise bonding contact with the con
duit, bulkhead and sections of the body portion
The bolt holes I2 are sealed by means of sealing
I
The body portion 'I as shown in Figs. 1 and 2
is preferably formed of a somewhat resilient and
light-weight metal, and is circular and generally
respectively as shown in Fig. 2 to insure a proper
cup-shaped or concavo-convex with a central
“grounding” of` the conduit to the metal body
structure of the aircraft.
conduit-receiving opening 'la and formed of like
halves or semi-circular sections. Each section is
provided with arcuate flange 'Ib on its outer mar
The bonding strips may be anchored to the
cushion lü by forming slots lßf in the cushion
and threading the strips therethrough as shown
gin, which iiange is adapted to lie parallel .to
-and against the bulkhead A and is provided with
bolt holes 7c whereby the two sections may be
in Fig. 2.
It is seen that upon bolting the sections of the
bolted with their concave sides facing said bulk
Í body portion 'l to the bulkhead A the cushion Iii
head for holding the cushion Il! in place.
At the inner margins of the sections or halves 15 will .be placed under compression and tightly
clamped around the conduit C. The faces of the
of the bell-shaped body portion 'l are arcuate
cushion opposed to the bulkhead are forced into
close and sealing contact therewith around the
opening l! through the bulkhead, whereas the
flanges lb will force and hold the projecting por
tion lob of the cushion into sealingcontact with
the conduit, there being a tensioned clamping
action due to the construction and arrangement
of the body portion and cushion and the compres
sion of the various portions of the resilient cush
ilanges 'Id deñning the conduit-receiving opening
through the center of the body portion, and ex-y
tending outwardly from the convex side of -the
body portion. The ñanges 1d surround the con
duit in circumferentially spaced relation thereto
whereby a portion of the cushion lli may be inter
posed between them and the conduit.
The cushion IB is preferably annular and
formed of soft rubber, synthetic rubber, or similar
compressible and elastic and insulation material
ion.
-
‘
and has its main or body portion of a substantially
With reference to Figs, 5 and 6 wherein a modi
semi-spherical cross section so that it will con
ned form of my invention is shown, the bulkhead
I6, conduit Il, bolts I8, nuts I9, sectional metallic
form to and nt snugly in the concave side of the
body portion l. A conduit-receiving opening iba
body member 2t and annular split cushion 2| are
is provided through the center of the cushion and
registers with the opening la through the center
of vthe body portion l. A tubular projection or
annular ñange portion Hlb is provided on the
substantially the same as to construction and ar
a seal as well as a cushioned seat around the con
longer than the corresponding portion of cushion
rangement as the corresponding parts of the first
escribed form shown in Figs. 1, 2,'3, 4 and 7; ' In
this modified form the sections ofthe bodyZü‘are
outer or convex face of the cushion and projects 35 provided with longer flanges 22 corresponding to
the iianges 1d, which longer flanges form a ta
through the >opening 'la in the body portion 'i' so
pered projection 23 on the body portion. The tu-_4
that it will be forced by the surrounding flanges
bular projection 25 on the cushion 2l is likewise>
'ld into` close contactwith the conduit and form
duit at this point. The outer` end of this portion 40 i6 in the first described form of the invention and
is tapered to ñt snugly in the projection 23, which
lüb is tapered to a thin edge as at loc so that the
exerts a clamping action on said’projecting cush
pressure in the airplane cabin will be eiïective
ion portion:
against this thin edge to augment the sealing ac
A bonding strip 2t is threaded through a cir
tion of the cushion.
_ ‘
On the inner or flat side of the cushion iii is a 45 cular series of openings 27 in the projecting por
tion 25 of` the cushion 2i so that portions of the
tubular projection ltd thereof which extends
strip will contact the conduit while other portions
through and serves as a lining for the opening l i
contact the ilanges 22 of the body member 29,
in the bulkhead to Cushion the conduit where it
vthereby bonding the conduit to the bulkhead
passes through said bulkhead, as shown in Fig, 2.
The projections Ilib and l Eid are permanent parts 50 through the strip 25, the sections of the metal body
portion and the bolts i8 and nuts I9.
of the cushion ,and do not result from compres
sion being applied thereto. _
The tapered flanges 22 and tapered projection
-
25 cause the cushion to be placed under compres
sion and form an effective seal when the body
agonallyV split as at Hic to provide for ready mount
ing thereof on the conduit, the diagonal split 55 member is tightly bolted to the bulkhead. The
The annular cushion li) as here shown is di
providing opposed relatively large opposed lsur-Y
cushion 2i is also provided Witha tubular sealing
faces Which as shown in Fig. 7 will closely engage
and ycushioning projection 2S on its innerside
one another and form a seal when the cushion is
corresponding to the portion md of Vcushion iii' and
clamped on the conduit by means of the sectional
body portion 7.
-
for the same purpose.V
60
The sectional construction of the body portion
'i and split annular cushion l@ facilitates the in
stallation of the device and provides for a, clamp
ing of the cushion under compression around the
conduit and against the bulkhead A to provide a 65
reliable holding of the conduit in a vibration-ab
l
‘
'-
ï’
While I have shown and described specific em
bodiments of my invention I do not limit myself to
theV exact details of construction set forth, and
the invention embraces such changes, modiñca
tions and equivalents of the parts and their for
mation and arrangement as come within the
purviews of the appended claims.
¿ Y
' `
sorbing and “wear proof” seat as Well as a re
liable hermetic seal around the conduit and the
opening i i in the bulkhead.
As shown in Fig. 2 the cushion 1B is provided
with opposed metallic bonding strips each includ
ing an intermediate portion Ilia to seat on the
conduit C, relatively wide end portions Mb to in
sure good contact with the bulkhead A and a nar
rower end portion Hic to effectively Contact the
1. In a support for a conduit which is passed
through an opening in a member in which itis
desired to seal said opening, a cushion of com
pressible material having a sealing surface for
engaging said member around the opening there
in, and a conduit seating surface for embracing
and forming a seal around the conduit, a tubular“ extension of said cushion projecting through and
2,410,999
5
lining the opening in said member, and means
4. In a, support for a conduit line which is ex
tended past a Wall or like member, a conduit en
for supporting said cushion on said member and
holding the cushion and said tubular extension
thereof under compression against said member
and the conduit, said tubular extension of said
circling bell-shaped cushion of compressible ma
terial having its inner surface disposed to con
tact said wall or like member, a, body member
against the side of which the outer surface of said
cushion is engaged, and a marginal portion on said
cushion forming a permanent part thereof.
2. In a support for a conduit which is passed
thro-ugh an opening in a member in which it is
body member adapted to be secured against said
desired to seal said opening, a cushion of com
Wall or the like, said body member being a bell
pressible material having a permanent annular 10 shaped shell which ñts over the exterior of said
axial projection which has a sealing surface for
cushion, and a metallic bonding strip mounted
engaging said member around the opening there
on the cushion so that a portion thereof will be
in, and a conduit seating surface for embracing
forced by said cushion against the conduit and
and forming a seal around the conduit, and means
other portions forced by the cushion into contact
>for supporting said cushion on said member and 15 with said wall and said body member respec
holding the cushion under compression against
tively.
said member and the conduit.
5. In a support for` a conduit which is passed
3. In a support for a conduit line which is eX
tended past a Wall or like member, a conduit en
through an opening in a wall or the like, an an
nular bell-shaped cushion of compressible ma
circling cushion of compressible material having 20 terial for embracing a conduit as a öushioned seat
its inner surface disposed to Contact said Wall or
therefor and for engaging said Wall or the like, a
like member, a body member against the side of
bell-shaped body member for supporting said
which the outer surface of said cushion is en
cushion under compression against the conduit
gaged, a marginal portion on said body member
and said wall or the like, and a bonding strip hav
adapted to be secured against said Wall or the 25 ing one end portion positioned in flatwise contact
like, a tubular projection on the outer face of said
with said body, its opposite end portion positioned
body member through which the conduit extends,
for flatwise contact with said wall, and its inter
and a permanent tubular extension of said cush
mediate portion positioned for iiatwise contact
ion for surrounding said conduit and lining the
with said conduit, said bell-shaped body having a
interior o-f said tubular projection, and a metallic 30 peripheral flange to receive fasteners extending
bonding strip carried by said tubular extension
through the Wall which place under compression
all the aforesaid portions of said bonding strip.
of the cushion having a portion interiorly of said
extension for engaging the conduit, and a portion
lying between the cushion and the projection of
the body.
JOSEPH HENRY REISNER.
35
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