U.S. patent number 3,594,833 [Application Number 04/816,936] was granted by the patent office on 1971-07-27 for feather spring pillow.
This patent grant is currently assigned to Manfred Richter Daunenkissen-Und Bettenfabrik. Invention is credited to Manfred Richter.
United States Patent |
3,594,833 |
Richter |
July 27, 1971 |
FEATHER SPRING PILLOW
Abstract
A resilient feather pillow comprising at least two internal
chambers surrounded by an outer covering, with one of the chambers
containing feathers and the other chamber being subdivided into a
number of compartments which are arranged to alternately contain
prestressed springs and yieldable elastic material. After
compression of the pillow the prestressed springs serve to cause
the pillow to assume its original shape and softness.
Inventors: |
Richter; Manfred (Wehr,
Baden-Wurttemberg, DT) |
Assignee: |
Manfred Richter Daunenkissen-Und
Bettenfabrik (Wehr, Baden, DT)
|
Family
ID: |
5703382 |
Appl.
No.: |
04/816,936 |
Filed: |
April 17, 1969 |
Foreign Application Priority Data
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|
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Apr 19, 1968 [DT] |
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P 17 78 327.6 |
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Current U.S.
Class: |
5/1; 5/642 |
Current CPC
Class: |
A47G
9/10 (20130101); A47C 27/124 (20130101) |
Current International
Class: |
A47C
27/12 (20060101); A47G 9/00 (20060101); A47G
9/10 (20060101); A47c 027/00 (); A47g 009/00 () |
Field of
Search: |
;5/337,341,338,342,359 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Gilliam; Paul R.
Claims
I claim:
1. A pillow, comprising a substantially flat envelope composed of
two substantially parallel flexible panels forming edges along the
circumference of said pillow; two flexible partitions in the
interior of said envelope subdividing the same into two exterior
chambers each located adjacent to one of said panels and an
interior chamber located between said exterior chambers; flexible
dividers in said interior chamber forming therein a central
interior compartment spaced from said edges of said pillow; spring
means having a high resiliency located in said central inner
compartment yieldingly engaging said flexible partitions so as to
urge them against the corresponding panels respectively; a first
filler material having a lower average resiliency than said spring
means filling at least portions of said interior chamber outside of
said central inner compartment and a second filler material having
an average resiliency higher than the average resiliency of said
first filler material and filling said exterior compartments.
2. A pillow as defined in claim 1 wherein said spring means
comprise metallic coil springs held in at least partly compressed
condition by said flexible partitions.
3. A pillow as defined in claim 1 wherein said interior chamber is
divided into a central compartment containing said spring means and
two flanking compartments containing said first filler
material.
4. A pillow as defined in claim 1 wherein said interior chamber is
divided by said dividers into at least four interior compartments,
and compartments having spring means therein alternate with
compartments having first filler material therein.
5. A pillow as defined in claim 1 wherein said interior and
exterior chambers are divided into elongated compartments, and said
compartments in said interior chamber are staggered with respect to
said compartments in said exterior chambers.
Description
BACKGROUND OF THE DISCLOSURE
The present invention relates to pillows, particularly feather-down
pillows such as are used in conjunction with chairs, beds and other
furniture. Feather-down pillows usually have an outer covering
which is filled with feathers of a particular grade or type with
the upper and lower surfaces of the covering being joined together
at their edges as well as with intersecting ribs which define
compartments in the interior of the pillow. The edges may be joined
together directly, for example by sewing them or they may be
indirectly joined by means of sidewalls.
Presently known feather pillows as a rule tend to become deformed
and crumpled after extended use and must be shaken out in order to
restore them to their former shape. Nevertheless, even after being
shaken to loosen the feather-down within the pillow, the pillows
will tend to lose their form and original softness with continued
use.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a feather pillow which
will return to its original shape and retain its softness
immediately after being used as well as after frequent and repeated
usage.
Another object of this invention is to provide a novel means within
a feather pillow to cause it to return to its original form and to
reassume its softness immediately after being used.
A further object of this invention is to provide a feather pillow
as described above which can be filled with inferior quality as
well as high quality grades and/or types of feathers.
The improved pillow comprises an envelope having two panels, at
least one deformable partition in the interior of the envelope
which subdivides the interior into at least one outer chamber and a
second chamber so that the outer chamber is adjacent to one of the
panels. There is a supply of feathers in the outer chamber and
elastic insert means in the second chamber.
The novel features which are considered as characteristic of the
invention are set forth in particular in the appended claims. The
improved pillow however, both as to its construction and its method
of operation, together with additional features and advantages
thereof, will be best understood from the following description of
specific embodiments when read in connection with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a first embodiment of the improved pillow,
with its internal structure shown partly in section;
FIG. 2 is a plan view of the pillow shown in FIG. 1, with a partial
sectional view showing its internal structure;
FIG. 3 is a side view of a second pillow shown partly in section;
and
FIG. 4 is a plan view of the pillow shown in FIG. 3, shown partly
in section.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIGS. 1 and 2, a first embodiment of the present
invention is shown in FIG. 1 by a side view of a pillow, with the
internal construction of the pillow shown partly in section and in
FIG. 2 by a plan view, also with a section removed to show the
internal structure of the pillow.
FIGS. 3 and 4 depict a second embodiment of a pillow according to
the present invention where FIG. 3 is a sectional side view of the
pillow and FIG. 4 is a plan view with the internal structure shown
partially in section. Those elements of the pillow shown in FIGS. 3
and 4 which are analogous to the elements of the pillow shown in
FIGS. 1 and 2 are denoted by the same numerals followed by a
prime.
In FIGS. 1 and 2 there is shown a feather pillow having an upper
covering or panel 1, a lower covering or panel 2 and sidewalls 3,
4, 5 and 6, which are all joined together by sewing to form a
continuous envelope of the pillow. Parallel to panel 1 and panel 2
are two deformable partitions 7 and 8, arranged in such a manner
that they define with panels 1, 2 two outer chambers 9 and 10 and
with each other a second, inner chamber 11. The outer chambers 9
and 10 are subdivided into a number of secondary compartments 14,
here shown as being rectangular in shape, by means of deformable
secondary partitions 12 and 13. These compartments 14 are filled
with high-grade feathers.
Chamber 11 is subdivided into a series of elongated compartments
16, 17 and 18 by deformable auxiliary partition means 15. FIG. 1
shows only one compartment 17 and one compartment 18, although
there are more than one of each kind. Further auxiliary partition
means 19 subdivide chamber 11 into other compartments 20, only one
of which is shown in FIG. 2, which surround compartments 16, 17 and
18.
Compartments 16, which are preferably of the same width are filled
with feathers of an inferior quality as compared with the feathers
used to fill outer chambers 9 and 10.
Metallic springs 21 and 22 are inserted into compartments 17 and
18. The springs are preferably of the helical or spiral compression
type and can be made from relatively thin steel spring wire. A
single row of springs 21 has been inserted into each compartment 17
and a double row 22 in compartment 18. The springs, whether
arranged in a single row or in several rows, serve as supports for
the walls of their respective compartments, thereby acting against
unwanted deformations of these walls as well as serving to support
each other. The primary function of the springs is to cause the
pillow to return to its original shape after being compressed. The
springs, having been prestressed before being sewn into their
respective compartments cause the surfaces of the pillow which are
in contact with the ends of the springs to be resilient. Thus
compressive forces applied so as to be coincident with the axes of
the springs cause only a temporary deformation of the springs and
hence, the pillow. When the forces are removed, the springs cause
the pillow to return to its original shape.
Compartments 20, which surround compartments 16, 17 and 18 are
filled with feathers of the same quality as compartments 16. The
walls of these compartments 20 act as supports for the rows of
springs 21 and 22 by tending to keep the springs in a substantially
erect position and thereby preventing them from bending or tilting
toward the outside of the pillow as well as serving to keep the
pillow reasonably firm. These compartments 20 may also be filled
with any flexible, deformable elastic material of a predetermined
softness which will aid in keeping the pillow firm.
The pillow shown in FIGS. 3 and 4 differs from that of FIGS. 1 and
2 in that it has no sidewalls, there being instead an upper panel
1' and lower panel 2' which are sewn together at their edges to
form the conventionally shaped envelope of the pillow as shown.
The outer chambers 9' and 10' are filled with high quality feathers
and the inner chamber 11' has only two compartments 17' which are
formed on either side of partition 12' and between partitions 15'.
Partition 12' extends from upper panel 1' through chambers 9', 11'
and 10' to lower panel 2' in contrast to the pillow shown in FIGS.
1 and 2 where partitions 12 end at the interface between chambers 9
and 10 and inner chamber 11'. A single row of prestressed helical
coil springs 21' is sewn into each compartment 17' and covered by a
flexible elastic cover 23. Compartments 16', situated on either
side of compartments 17' are filled with a soft padding material
such as an inferior grade of feathers.
The manufacture of the pillow can be simplified by aligning the
partitions 12 in the outer chamber with the partitions 15 in the
inner chamber in the same plane as indicated by the dotted lines in
FIG. 2. However, in order to further enhance the softness of the
pillow and to avoid heavy bulky seams on its exterior panels it is
sometimes advisable to stagger the partitions.
Although high quality feathers always must be used to fill the
outer chambers 9, 10 and 9', 10', it is not necessary that only
inferior quality feathers be used to fill compartments 16 and 16'.
Other deformable material such as foam rubber, cotton, pieces of
soft foamed plastic and organic or synthetic fibers can also be
used.
Thus, pillows which are manufactured in accordance with the basic
features of the above-described examples, although differing in
structural details, will be markedly superior to those presently
used because of the fact that they will retain their shape and
softness after extended periods of use. They will also be
especially useful in hospitals, where they can be employed in the
treatment of patients requiring long periods of confinement in bed.
Furthermore, the semirigid but resilient nature of such pillows
will make them especially suitable for use as supporting pillows
for patients with back ailments and the like.
Without further analysis, the foregoing will so fully reveal the
gist of the present invention that others can, by applying current
knowledge, readily adapt it for various applications without
omitting features which fairly constitute essential characteristics
of the generic and specific aspects of the above-mentioned
contribution to the art.
What is claimed as new and desired to be protected by Letters
Patent is set forth in the appended
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