U.S. patent number 3,570,492 [Application Number 04/786,047] was granted by the patent office on 1971-03-16 for sanitary napkin assembly.
This patent grant is currently assigned to Edward Brosler. Invention is credited to Joseph Bettencourt.
United States Patent |
3,570,492 |
Bettencourt |
March 16, 1971 |
SANITARY NAPKIN ASSEMBLY
Abstract
A pair of sanitary napkins of approximately half normal
thickness, and each having a body contacting wall and opposite flow
barrier wall, are assembled in alignment with the body contacting
wall of one covering the flow barrier wall of the other, the two
napkins being hingedly connected at one side to maintain a
connection between the two while permitting a reversal of the order
of arrangement thereof.
Inventors: |
Bettencourt; Joseph (Albany,
CA) |
Assignee: |
Brosler; Edward (N/A)
|
Family
ID: |
25137442 |
Appl.
No.: |
04/786,047 |
Filed: |
December 23, 1968 |
Current U.S.
Class: |
604/385.01 |
Current CPC
Class: |
A61F
13/505 (20130101); A61F 2013/5055 (20130101) |
Current International
Class: |
A61F
13/15 (20060101); A61f 013/16 () |
Field of
Search: |
;128/290 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Rosenbaum; Charles F.
Claims
I claim:
1. A sanitary napkin assembly comprising a pair of sanitary
napkins, each including a pad and a tab extending from each end
thereof, with said pad having a body contact wall and a rear flow
barrier wall, said napkins being arranged in alignment with the
front body contact wall of one said pair covering the rear flow
barrier wall of the other in removable relationship thereto, and
means hingedly securing said napkins along a hinge line to maintain
a connection between the two while permitting a reversal of the
order of arrangement thereof.
2. A sanitary napkin assembly in accordance with claim 1
characterized by said hinge line being substantially along
proximate longitudinal edges of said napkins.
3. A sanitary napkin assembly in accordance with claim 1
characterized by said connecting means being in the form of a hinge
having a tear line therein to permit separation of said napkins by
tearing, if desired.
4. A sanitary napkin assembly in accordance with claim 1
characterized by said connecting means comprising means connecting
said napkins at corresponding locations adjacent one end of said
pads and in the proximate tabs, and at corresponding locations
adjacent the other end of said pads in the tabs proximate thereto
and in substantially longitudinal alignment with the first
locations.
5. A sanitary napkin assembly in accordance with claim 4
characterized by said connecting means comprising a hinge strip
secured at each end to a different one of the proximate tabs at one
end of said pad and a hinge strip secured at each end to a
different one of the proximate tabs at the other end of said pad.
Description
My invention relates to sanitary napkins for feminine hygiene.
During those periods when sanitary napkins are required, one finds
it desirable or necessary to change one or more times a day. Should
one overlook carrying a fresh supply to take care of such
situation, and none are otherwise conveniently available, the
individual suffers discomfort, both physically and mentally. The
teenager, in particular, is more apt to find herself in such a
situation, since their purses are, more often than not, limited in
capacity and will not conveniently hold one or more of such napkins
in reserve, along with the many and varied items normally carried
in one's purse, and teenagers, furthermore, prefer not to risk the
contents of their purses being exposed to others, particularly to
members of the opposite sex.
Among the objects of my invention are:
1. To provide a novel and improved sanitary napkin in the form of
an assembly;
2. To provide a novel and improved sanitary napkin assembly having
a greater effective absorption capacity than a sanitary napkin of
conventional construction and comparable volume of absorbent
material;
3. To provide a novel and improved sanitary napkin assembly,
providing comfortable use over longer periods of time than others
of conventional design;
4. To provide a novel and improved sanitary napkin assembly having
the foregoing attributes, and which may employ any of the ancillary
features of construction and design currently available in sanitary
napkins; and
5. To provide a novel and improved sanitary napkin assembly which
may make use of conventional machines and methods in the
fabrication thereof.
Additional objects of my invention will be brought out in the
following description of a preferred embodiment of the same, taken
in conjunction with the accompanied drawings wherein:
FIG. 1 is a view in perspective of the sanitary napkin assembly of
the present invention;
FIG. 2 is a view in section through the assembly of FIG. 1; and
FIG. 3 is a view depicting another embodiment of the invention.
Referring to the drawings for details of my invention in its
preferred form, the sanitary napkin assembly involved, comprises a
pair of napkins 1 and 3, each of which may be of any conventional
structure, involving an absorbent pad 5 having a pin or belt tab 7
of fabric extending from the upper end of the pad, and a somewhat
similar pin or belt tab 9 extending from the lower end. In addition
to the body contact wall 11 of the pad, the pad should preferably
include a flow barrier wall 13 opposite thereto which involves a
thin layer of plastic 15 curved into the edges of the pad.
The two napkins are arranged with the front body contact wall of
one covering the rear flow barrier wall of the other, and connected
one to the other by hinge means which, in the form illustrated,
involves a connecting strip 19 of flexible material such as paper,
cloth or the like, joining the pads 5 along one edge, the hinge
strip being preferably sufficiently narrow to be under tension or
devoid of slack, when the two napkins are in aligned contact, as
depicted in FIGS. 1 and 2.
Such hinge means not only maintains a connection between the two
napkins, but, what is of considerable importance to the present
invention, it permits one napkin to be swung around on the hinge
axis to bring about a reversal of the order of arrangement of the
napkins, that is the napkin 1 which was previously in front, is now
in the rear, and the other 3, which was in the rear, is now in
front.
When put to use, the assembly is applied with the body contacting
wall of the first or front napkin 1 in contact with the body. When
the wearer feels the need for a change, she merely reverses the
order of arrangement, which brings the rear fresh napkin 3 into
position for use, while burying the saturated portion of the first
napkin in the middle of the assembly, leaving the clothing of the
wearer protected by the flow barrier wall of the used napkin, while
seepage from the used napkin into the fresh napkin is precluded by
the flow barrier wall of the fresh napkin.
Such reversal of the order of arrangement may be conveniently
accomplished without the complete removal of the installed
assembly, for merely unpinning or releasing the upper or front
tabs, will free the assembly sufficiently to permit of the desired
reversal, and the change can be effected cleanly and quickly.
To avoid any greater bulk than involved with a conventional type
napkin, which measures approximately three-fourths of an inch in
thickness, before use, each of the napkins involved in the assembly
of the present invention, will, in its fresh state, preferably be
of the order of half that thickness or approximately three-eigths
of an inch in thickness.
With each napkin having a thickness of the order of half that of
the conventional napkin, the overall effective or useable capacity
of the assembly will greatly exceed that of the conventional napkin
of comparable bulk, for at the time a user of a conventional napkin
discards the same, a substantial portion of its absorbent capacity
will not have been utilized. The ability to reverse the order of
arrangement of the napkins in the assembly of the present
invention, enables utilization of substantially the full capacity
of each napkin of the assembly.
Thus, the assembly of the present invention may be worn for a
longer period of time before the wearer finds it necessary to
concern herself about a source of fresh supply. Such time period
may be sufficient to avoid the necessity of carrying extras around
in one's purse, and the probable necessity of discarding a used
napkin at the home of a friend or host, where the probability of
clogging the plumbing could result in an embarrassing
situation.
The specific detail of construction of the individual napkins is
not a critical factor in the present invention, except that, when
each napkin has a built-in flow barrier wall, maximum utilization
of the individual napkins may be realized. Inasmuch as each
individual napkin may be fabricated along the lines of conventional
napkins on the market, assembly line production machinery and
methods available in the production of conventional napkins, may be
utilized in the production of the individual napkins involved in
the assembly of the present invention, the only change from the
conventional napkin being in the reduction in thickness.
As a variation in the manner of use of the above described
embodiment of the invention, the narrow flexible hinge strip 19 may
be perforated or otherwise weakened longitudinally to permit
tearing, whereby to sever the first or used napkin for disposal
into a toilet, where the risk of clogging the plumbing is minimized
due to the reduced bulk of the napkin.
The specific hinge means illustrated and described, does not
necessarily constitute the only hinge means offering some or all
the advantages of the present invention.
The upper or lower tabs, for example, may be sewed or glued
together along their ends to form a hinge at this point; or in lieu
of that, the upper tabs may be spot glued, stitched or otherwise
connected together at a point 23 adjacent an upper corner of the
pads, while the lower tabs may likewise be connected at a point 25
adjacent to the longitudinally opposite lower corner of the pads,
whereby both spot connections will, together, constitute a hinge
performing the functions of the hinge strip 19, it being noted in
this connection, that the looseness and stretchability of the tabs
7 and 9 will permit of such hinge action.
Along somewhat similar lines in the embodiment of FIG. 3, wherein,
in lieu of the hinge strip 19, the two napkins are hingedly
connected by a pair of connecting hinge strips 29, 31, the strip 29
joining the upper tabs 7 adjacent the upper edges of the pads 5,
with the strip 31 joining the lower tabs 9 adjacent the lower edges
of the pads. A narrow space between the connected tabs may be
provided, but due to the looseness and stretchability of the tab
material, the proximate edges of the connected tabs could actually
be in contact or even in slight overlapping relationship without
impairing the desired hinge action.
The manner of applying such strips 29 and 31 is incidental to the
invention, as they may be applied by adhesive, gluing,
sewing....etc., and if severing of the hinge is desired, the strips
may be of paper of other tearable material, or if not readily
tearable, the hinge axis portion of each may be perforated or
otherwise weakened to provide a tear line.
It is furthermore, within the contemplation of the invention, to
incorporate within the pads, a deodorant of any suitable character,
such being known to the prior art.
While I have illustrated and described my invention in considerable
detail, it will be apparent that the same is subject to alteration
and modification without departing from the underlying principles
involved, and I accordingly do not desire to be limited in my
protection to the specific details illustrated and described except
as may be necessitated by the appended claims.
* * * * *