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Патент USA US2405330

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‘a $539 394%.
_ w. D. RYDER
' INSULATING STRUCTURE
Filed April 12, 1941
5 Sheets-Sheet 1
W
V12:
& INVENTOR
Willard D.
Ryder.‘
Aug. 6, 1946.
'
w. D. RYDER
2,405,339
‘INSULATING STRUCTURE
Filed April 12, 1941
3 Sheets-Sheet 2
INVENTOR
WIL/Iara’ 0.
I
Aug‘, ‘, 1946. '
w. p. RYDER
M33
INSULATING STRUCTURE
Filed Aprii 12,’ 1941‘
5 Sheets-Sheet 5
INVENTOR
W/Y/am’ 0; Ryder
Patented Aug. 6, 194-6
2,405,330
‘ UNITED STATES‘ PATENT OFFICE.
2,405,330
INSULATING STRUCTURE
Willard D- Ry?er, Tulsa’, Okla
Application April 12, 1941, Serial No. 388,325
5 Claims. (01. 154-244)
1
~
This invention relates to an insulating con
struction for holding- temperatures varying from
atmospheric to as low as a calculated absolute
zero fahrenh‘eit, and has for its principal object
to provide an efficient, relatively simple and
moisture-proof structure sealed against the in
2
and on which moisture would normally condense
and form a frost or ice coating. However, as
above pointed out, it is the purpose of th'e present
invention to insulate the pipe to hold the internal
temperatures and prevent accumulation of nor
mally precipitated 0r attracted moisture on the
?ltration of normal precipitated or attracted
surface of the pipe.
'
moisture and air.
In carrying out my invention, the surface 2 of
Other objects of the invention are to provide
the pipe is cleaned of dirt, scale and other ac
an insulation including a p1ura1ity of layers of 10 cumulations and a prime coating 3 is applied
preformed ?brous sections; to provide impervi
ous seals between the layers and/or the area in
sulated for sealing- the cellular structure thereof;
and to provide a construction whereby the joints
are staggered to. make a stronger and impervious
insulation.
,
In accomplishing these and other objects of the
invention, as hereinafter pointed out, I have pro
vided improved details of structure, the preferred
forms of which are illustrated in the accompany
ing drawings, wherein:
Fig. l is a fragmentary perspective view of a
thereover, the coating being a moisture-resistant‘
material which may be applied in the form of a
paint or a heated liquid material to receive there
over a layer of insulating material 4, preferably
of water-proof character, for example ?bered
silica such as glass wool, ?ber glass, rock wool,
mineral wool, slag wool, chrysotiles, crocidolites,
amosites, vermiculites, and the like.
~ In order to facilitate application'of the insu
20 lation, it preferably consists of preformed rigid
or‘semierigid sections 5 and 6, shaped to the con
tour of the area to be insulated so that they ?t
closely thereagainst. In the illustrated instance
pipe insulated in accordance with the present
invention, the various layers forming the insu
the sections are semicylindrical and of conven
lating structure being broken away in stepped 25 ient length to permit ready application to a pipe,
back relation to better illustrate the construction.
the inner arcuate faces thereof being sized to in
Fig. 2 is a cross-section through the pipe and
timately engage the coating 3. The sections have
insulation.
material thickness and the‘side edges have faces
Fig. 3 is a longitudinal section showing the lon
gitudinal joints in the insulation.
'
Fig. 4 is a detail perspective view of a lateral
bend of the pipe formed by a screw-?tting and
‘I, and 8 shaped to form close joints 9 when the
sections encircle the pipe. After the ?rst sections
are applied on the pipe they are retained thereon
by strands, such as string or wire In, having the}
showing- my improved insulation applied thereon,
ends twisted or tied together-as at H.
the insulation at the bend being broken away and
tions may be secured by metal bands, tensione
The sec
in section.
Fig. 5 is a sectional view through the bend.
Fig. 6 is a cross-section on the line 6—5 of
sealed in place. . When the sections are formed of
Fig.
as a synthetic resin, mineral oil, bituminous emul
5.
‘
'
. Fig. '7 is a perspective view of pipes connected
certain materials the component ?bers thereof
are preferably treated with a binder or ?ller such
sion, bentonitic clays, diatomaceous earth, silicate
by a. T insulated in accordance with the present 40 or oxy-chloride cements, or the like singly or in
invention.
combination, in order that the sections will re
Fig. 8 is. a longitudinal section through the T
tain their desired shape and maintain the cellu
connection, the pipes and T being shown in plan.
lar» structure when additional layers are applied
» Fig. 9 is a perspective view of my improved in
'thereover. After-application of the ?rst layer,
sulation applied to an L ?tting having ?ange con
nections. with thepipe.
the exterior surface thereof is covered with an
impervious seal consisting of one or morelayers
Referring more in detail to the drawings:
While my invention is adapted for insulating
ducts, piping, tanks, various vessels, and similar
resins, rubber cements, ?bered mastics, oxidizing
oils, resinous emulsions, waxes‘, latex, and simi
of sealing material such as bitumen, synthetic
containers, as well as wall, roof, ceiling and floor 50 lar water-resistant coating materials, or the im
pervious sealing means may consist of waxed pa
pers, saturated felts, rubber or synthetic rubber,
areas, I have particularly illustrated the inven
tion as applied to piping including the ?ttings
thereof.
1 designates a run of cylindrical pipe which
impregnated cloths, cellulose or plastic sheets,
which may be used alone or in combination with
is. adapted to carry a 10W temperature medium 55 the coating materials above noted.
t
2,405,330
3
4
exterior surface of the insulation and to each
tings, as shown in Figs. '7 to 9 inclusive, the
laps the exposed ends of the ?rst layers of pipe
In the illustrated instance the impervious seal
insulation. The material 4! is then bound with
l2 comprises two layers of sheet material l3 and
twine 42 and covered with an impervious sealing
14, the inner layer of which is wrapped about
material 43 of the type previously described. An
the applied layer of insulating material and is
other layer of insulating material 44 is bound
of sui?cient width so that the marginal edges
around the ?rst in covering relation with the
l5 and I6 overlap, in staggered relation with
exposed ends of the next layer of insulating ma
respect to the longitudinal joints 9 of the ?rst
terial which covers the pipe and this layer is
insulating layer. The outer sheet I4 is wrapped
also covered with the impervious sealing mate
about the layer I3 with the marginal edges l3
thereof overlapped, as at H, in staggered rela 10 w‘rial 43. Additional layers are applied in like
manner until the insulation is of the required
tion with ‘the lap edges l5 and it. When the
thickness.
sealing sheets are formed of tacky materials they
When the insulation is applied to ?anged ?t
have su?icient adhesiveness to adhere to the
other, however, when dry coverings are used, it 15 respective layers of insulating material are ap
is desirable to use them with one of the ?uid or
plied on the runs 45, 46 and 41 of the pipes, as
previously described, to a depth corresponding to
the diameter of the ?anges 48 of the ?tting 49.
The entire ?tting is then covered with layers of
to each other and to the exterior ?ber of the
insulating layer so as to seal the cellular struc 20 insulating material of the character described,
including the exposed ends of the step-back in
ture thereof against in?ltration of precipitated
sulation layers on the runs of pipe, as clearly
or attracted moisture and air. After application
shown in Fig. 8. These layers are of segmental
of the sealing layers, another layer l8 of insu
form and have their side edges closely ?tted and
lating material may be applied thereover, which
is in the form of semicylindrical sections l9 and 25 overlapping the stepped portions of the insu
plastic materials above noted. The sheet layers
are, therefore, substantially hermetically sealed
20 formed in the same manner as the insulating
lating layers, one or more layers of sealing ma
terial being interposed between each segment.
sections previously described, but of a larger, in
While I have particularly illustrated my in
ner diameter to engage over the layers forming
vention as applied to piping, it is obvious that
the seal 12. After application, the second layers
of insulating material are retained by strands 30 it may be applied to the cylindrical surfaces of
tanks and other vessels in a similar manner with
2|, similar to the strands I0 previously described.
out departing from the spirit of the invention.
After application of the second layer of insulat
It is also possible to use the insulation for cover
ing material, the surface thereof is covered with
ing various other surfaces, as above pointed out.
an impervious seal 22, similar to the seal l2
previously described.
35; From the foregoing it is obvious that I have
provided a highly ef?cient insulating structure
The insulation may be built up to the desired
formed of cellular material wherein the cells
thickness with each layer of insulating mate
are sealed against in?ltration of moisture or
rial separated by one or more layers of sealing
moisture containing air. The insulation, when
material. After the last layer of insulating mate
rial is'applied and covered by the impervious seal 40 built up as described, is of strong, rigid con
struction, and has a smoothly continuous exterior
ing layers, the whole is wrapped with a continu
to enhance the appearance thereof.
ous twine, or like wrapping 23.‘ An outer cover
ing 24 is then applied consisting‘ of a heavy board
What I claim and desire to secure by Letters
Patent is:
paper jacket 25 followed by a canvas, metal, roll
1. A "structure of the character described in
roo?ng material or plastic ?nish 26, the ex 45
cluding a base element having an exterior sur
terior surface of which may be protected with a
face normally tending to condense moisture, a
paint seal, indicated at 21.
If the runs of pipe are longer than the sec
moisture resistant coating on said surface and
having an adhesive property, a layer of preformed
tions of insulating material to be applied, the
ends of the sections are stepped back relatively 60 ?brous sections of siliceous‘ material having ad
jacent edges closely contacting each other and
to eachother so that the circumferential joints
having an inner surface conforming to the sur—
are staggered. With the insulation thus applied,
it is apparent that the joints are fully broken,
face of the base element for intimately contact
both as to circumferential and longitudinal direc
ing the ?bers at said inner surface with said ad
tions, and that the layers of insulation are effi 55 hesive coating whereby said coating seals said
ciently sealed against in?ltration of natural or
inner surface of said sections, said sections pro
viding a substantially uniform ?brous mass of
precipitated moisture or air.
When the insulation is applied . to a screw
material thickness on said base element, a sec
type ?tting, for example, an ell ?tting 28 con
ond layer of similarly formed sections having con
tacting edges staggered with respect to the sec
necting lateral runs of pipe 29 and 30, the ?rst
section 3| and 32 on the respective pipes have
tions forming the ?rst layer, an impervious seal
their ends abutting squarely against the ends 33
ing material also of adhesive property interposed
of the ell ?tting, as shown in Figs. 4 and 5, and
between said layers and sealed to the ?bers of
the succeeding layers of sealing material 34 and
the respective layers, and an impervious cover on
35 are extended to the ends of the insulating 65 the outer of said layers, said cover and impervi
ous sealing material cooperating‘with the coat
sections. The succeeding layers 36 and 31 of
insulating material are stepped back from the
ing to exclude moisture from entrance into said
?brous layers.
end of the ?rst layer, as shown at 38' and 39,
followed by corresponding stepbacks of layers to
2. A structure of the character described in
be applied, with the sealing material extend 70 cluding a base element having an exterior sur
face normally tending to condense moisture, a
ing to the ends of the insulating layers so as
moisture resistant coating having adhesive prop
to cooperate with sealing washers 40 which are
erties on said surface, a layer of preformed ?brous
sleeved thereagainst, ‘as best shown in Fig. 5.
sections of siliceous material having adjacent
The ell ?tting is then covered with a reasonably
?exible ?bered silica wrapping" 4|, which over
edges closely contacting each other and having
2,405,330
G
tions providing a substantially uniform ?brous
mass of material thickness on said base element,
a second layer of similarly formed sections hav:
surface of said pipe and having an adhesive prop
erty, a layer of ?brous siliceous material hav
ing an inner surface conforming to the surface
of the pipe for intimately contacting the ?bers
of said inner surface to cause adherence with said
coating and for sealing said inner surface, said
?brous siliceous material providing a substan
said layers, said cover and impervious sealing
material to seal said ?bers, and an impervious
an inner surface conforming to the surface of the
base element for intimately contacting said coat
ing and causing adherence of the ?bers of said
inner surface to the adhesive ‘coating, said sec
tially uniform mass of material thickness on said
ing contacting edges staggered with respect to
pipe, a layer of sealing material having a tacky
the sections forming the ?rst layer, said ?bers
making up said sections being secured together 10 characteristic and wrapped about said sections
in sealing contact with the outer ?bers of said
by a binding material for maintaining shape of
sections and having overlapping marginal edges,
the sections, an impervious sealing material hav
a second layer of ?brous siliceous material having
ing adhesive properties interposed between said
contacting side edges and inner surfaces in in
layers and sealed to the ?bers of the respective
timate
contact with the layer of tacky sealing
layers, and an impervious cover on the outer of 5
material cooperating with the coating to exclude
moisture from entering into the ?brous layers.
3. A structure of the character described in
cluding a base element having an exterior surface
normally tending to condense moisture, a mois
ture resistant coating having adhesive properties
on said surface, a layer of preformed ?brous sec
tions of moisture resistant siliceous material hav
cover on the outer of said sections to exclude
moisture from entrance into the sections.
5. A structure of the character described in
cluding a pipe, a moisture resistant coating on
the surface of said pipe and having an adhesive
property, a layer of ?brous siliceous material
having an inner surface conforming to the sur
face of the pipe for intimately contacting said
ing adjacent edges closely contacting each other 25 coating to cause adherence of the ?bers to said
coating for sealing said inner surface, said ?brous
and having an inner surface conforming to the
siliceous material providing a substantially uni
surface of the base element for intimately con
form mass of material thickness on said pipe,
tacting said coating causing adherence of the ?
a layer of sealing material having a tacky char- ,
bers of said inner surface to the adhesive coating,
said sections providing a substantially uniform 30 acteristic and wrapped about said sections in seal
ing contact with the outer ?bers of said sections
?brous mass of material thickness on said base
and having overlapping marginal edges, a sec
element, a second layer of similarly formed sec
ond layer of similar material having inner sur
tions having contacting edges staggered with re
faces in intimate contact with the layer of tacky
spect to the sections forming the ?rst layer, an
impervious sealing material having adhesive sur 35 sealing material to adhere said ?bers to the seal
ing material, a layer of sealing material having
faces interposed between each layer to seal with
‘ tacky characteristic covering the outer sections,
the ?bers of the respective layers, and an im
and an impervious cover covering said last named
pervious cover on the outer of said layers.
layer of sealing material.
4. A structure of the character described in
WILLARD D. RYDER.
cluding a pipe, a moisture resistant coating on the 40
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