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Патент USA US2122702

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July 5, 1938.
Filed May 18, 1937
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Patented‘ July 5,1938
Mathias A. Wagner, Mount Angel, Oreg.
Application May'18, 1937, Serial No. 143,309
3 Claims. (01. 72-7)
This invention relates to burial vaults of the
individual type that are set into the earth so that
the ornamental top member is just above the
The above type of vault is being largely em
ployed and has numerous desirable features look
ing to permanency; but the known art has one
weak point, that the top does not provide suffi
cient insulation to prevent sun heat from pene
10 trating the vault proper.
The object of the present invention is to pro
vide an insulation member that has high insulat
ing value and at the same time possesses moisture
absorbent qualities in a superlative degree, bear
“ ing in mind that disposal of moisture in the con
tained air of the vault contributes very markedly
to the desired end, for as is well known substan~
tially dry air is a far better insulating medium
than humid air.
I accomplish the objects of the invention by
an insulating slab that seals the vault proper,
below the exposed top member in a manner supe
rior to what has been done heretofore, by the
employment of new materials for the purpose,
ll) 5 assembled in a new structure.
Drawing accompanies and forms a part of this
speci?cation which, taken with the written de
scription, constitutes a complete disclosure of my
new vault.
In the drawing,
Fig. I is a longitudinal side elevation, partly in
Fig. II is a top, plan view; with the top and seal
Fig. III is a section on the line III-III of Fig. I.
The vault proper, l, is aconcrete box-like mem
her with an open top‘ and a moulded shelf 2, a
short distance below the top. It will be made of
' well selected materials and completely water
40 proof according to the known art.
The slab 6 is a slab-like mass of diatomite, of
the best obtainable grade and should be dried to
not over 6% moisture content by weight. It is
tamped loose into the shell-like structure of the
slab, before the application of the top member. 5
The shell is composed of a preferably arched bot
tom 9, a top l0, end walls II and I2, and ?anges
I5, adapted to rest on the shelf 2. The shell is
moulded of a highly porous aggregate mixed
with Portland cement and preferably reinforced
as by expanded metal at H5. The shell aggregate
in its best form is a substance made from a
natural Wyoming mineral found in a deposit at
Encampment, Wyoming, of essentially silicon,
magnesium and aluminates, that has the peculiar 15
property of expanding when burnt so that its
weight decreases from about 80 pounds per cubic
foot to less than 10 pounds with a corresponding
increase in bulk. It is highly porous and has a
high insulating value, making it especially suit
able for the purpose herein, though a high grade
of cinder concrete or other concrete with a po
rous though strictly mineral aggregate will serve
less efficiently. The material is a commercial
product known by the trade name of mikolite.
The slab is preferably made by first moulding
the side and end slabs like planks, laying the
bottom slab in a mould and placing the ends and
sides in situ in the soft bottom material. After
setting, the inside is ?lled with diatomite as here
tofore described and a comparatively dry mix of
the porous cementitious material is applied as
the top H]. Making the slab 6 in‘ this manner
obviates the necessity of leaving any wooden form
material in the slab, which is to be avoided.
Provision of an insulating slab and applying it
to a vault in the manner illustrated and described
results in a very much improved structure and is
believed to completely solve the problem pre
sented but left for solution by previous structures.
An ornamental top 4, may be cut from granite,
In this speci?cation, diatomite is used as an
marble or other natural stone or it may be made
of terrazzo, art marble or other dense non-porous
material and styled as desired.
In use, the vault proper will be set into the
expression indicating diatomaceous earth of high
purity, the grade found naturally in the deposits
earth with its top just below the normal surface,
the casket will be placed within and the insulat
ing slab, indicated in general by the numeral 6,
will be placed within the vault I, to rest on the
shelf 2. A dense concrete seal 1, will lock the
slab 6, to the vault I; a heavy coat of bitumen 8,
will be applied to occupy the position shown in
the drawing, to complete the sealing of the
vault and particularly to seal the top of the slab 6.
will serve in a correspondingly efficient manner.
at Terre Bonne, Oregon, being taken as a stand
ard of excellence, though grades of lesser worth
Having disclosed my invention, what I claim
as new and desire to secure by Letters Patent,
1. A burial vault comprising a box-like struc
ture with a removable top and an insulating slab
positioned on an integral shelf below the top, the
said insulating slab being characterized by being
constructed of cement concrete made of porous
aggregate to form a shell de?ning‘ an interior 7 porous cement shell de?ning an interior enciése'd
space, the said space being ?lled with dried dia
tomaceous earth.
2. In a burial vault, a vault member, a top
adapted to be sealed thereto and an insulating
and moisture absorbing slab positioned within the
vault below the top and over the vault portion, a
sealing material between the vault structure and
the slab, the said slab being characterized by a.
space ?lled with dried diatomite._
3. An insulation slab for a burial vault of the
character described, de?ned as a generally rec~
tangular prismatic body of absorbent diatoma
ceous earth material about which is a casting of
porous cementitious material comprising a slab
like shell that surrounds it on all sides.
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