Patent US3815601A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3815601A Expired / Lapsed US ⏱️ 0.0 years remaining

Catamenial aggregate absorbent body

Assignee: Procter and Gamble Co
•
Filing: 1973-05-09
•
Granted: 1974-06-11
•
Expires: 1993-05-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A tampon wherein the absorbent body is an aggregate of separate pieces of low modulus, resilient, absorbent foam. The aggregate is held together by an encasing overwrap which is relatively loose about the aggregate to permit some relative motion between adjacent pieces of foam. The mesh of the overwrap is fine enough to totally contain the absorbent pieces and thereby prevent surfaces of the absorbent pieces from penetrating the overwrap and forming part of the external surface of the tampon.

Inventors

  • 👤 Jean Edward Schaefer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:06
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; Y; Y10; Y10S; Y10S604/00; Y10S604/904

Claims Analysis

Total Claims: 40
Claim 1
Independent Claim 113 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, said pieces being wholly contained within the exterior portion of said overwrap such that substantially none of the absorbent foamlike material protrudes through the exterior portion of the overwrap whereby the exterior surface of the tampon is formed by the overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, whereby said aggregate is maintained by said overwrap and said device is soft, highly compressible, conformable to its surroundings, and resilient.
Claim 2
Dependent Claim 113 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, said pieces being wholly contained within the exterior portion of said overwrap such that substantially none of the absorbent foamlike material protrudes through the exterior portion of the overwrap whereby the exterior surface of the tampon is formed by the overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, whereby said aggregate is maintained by said overwrap and said device is soft, highly compressible, conformable to its surroundings, and resilient.
Claim 3
Dependent Claim 94 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, the volume packing factor of said device being equal to or less than about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, whereby the overwrap has low tensional forces therein and said device has an amorphous character.
Claim 4
Dependent Claim 94 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, the volume packing factor of said device being equal to or less than about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, whereby the overwrap has low tensional forces therein and said device has an amorphous character.
Claim 5
Dependent Claim 11 words
The device of claim 2 wherein said pieces are irregularly shaped.
Claim 6
Dependent Claim 109 words
The device of claim 2 wherein said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion.
Claim 7
Dependent Claim 15 words
The device of claim 2 wherein an ancillary absorbent material is distributed within said aggregate.
Claim 8
Dependent Claim 26 words
The device of claim 2 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 9
Dependent Claim 121 words
The device of claim 6 wherein A. said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion; and B. an ancillary absorbent material is distributed within said aggregate.
Claim 10
Dependent Claim 11 words
The device of claim 1 wherein said pieces are irregularly shaped.
Claim 11
Dependent Claim 113 words
The device of claim 8 wherein said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior 1 street. Therefore, Amber portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion.
Claim 12
Dependent Claim 66 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, the pieces being irregularly shaped, an ancillary absorbent material being distributed within said aggregate, and said aggregate being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi.
Claim 13
Dependent Claim 66 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, the pieces being irregularly shaped, an ancillary absorbent material being distributed within said aggregate, and said aggregate being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi.
Claim 14
Dependent Claim 109 words
The device of claim 1 wherein said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion.
Claim 15
Dependent Claim 185 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, said overwrap being essentially tubular, each longitudinal end of the tubular overwrap being gathered radially inwardly to form a closure, one longitudinal portion of the overwrap being a re-entrant portion and another longitudinal portion of the overwrap being an exterior portion, said exterior portion forming the outer surface of said device, and said re-entrant portion being re-entrant upon the combination of said aggregate and said exterior portion; whereby said aggregate is maintained by said overwrap and said device is soft, highly compressible, conformable to its surroundings, and has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity being formed by said re-entrant portion.
Claim 16
Dependent Claim 185 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi, said overwrap being essentially tubular, each longitudinal end of the tubular overwrap being gathered radially inwardly to form a closure, one longitudinal portion of the overwrap being a re-entrant portion and another longitudinal portion of the overwrap being an exterior portion, said exterior portion forming the outer surface of said device, and said re-entrant portion being re-entrant upon the combination of said aggregate and said exterior portion; whereby said aggregate is maintained by said overwrap and said device is soft, highly compressible, conformable to its surroundings, and has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity being formed by said re-entrant portion.
Claim 17
Dependent Claim 26 words
The device of claim 11 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 18
Dependent Claim 65 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi.
Claim 19
Dependent Claim 65 words
An absorptive device, comprising: an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 psi to about 0.050 psi.
Claim 20
Dependent Claim 26 words
The device of claim 14 wherein the size of substantially all of said pieces is within The range of from about 1/16 to about 1.0 inch.
Claim 21
Dependent Claim 26 words
The device of claim 1 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 22
Dependent Claim 152 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-premeable overwrap, said pieces being wholly contained within the exterior portion of said overwrap such that substantially none of the absorbent foam-like material protrudes through the exterior portion of the overwrap whereby the exterior surface of the tampon is formed by the overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, said tampon being resiliently compacted within said inserter, whereby said tampon is easily ejectable, and fluffs out rapidly after in vivo ejection from said inserter to fill the vaginal cross-section.
Claim 23
Dependent Claim 152 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-premeable overwrap, said pieces being wholly contained within the exterior portion of said overwrap such that substantially none of the absorbent foam-like material protrudes through the exterior portion of the overwrap whereby the exterior surface of the tampon is formed by the overwrap, said aggregate being flexible and resilient and having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, said tampon being resiliently compacted within said inserter, whereby said tampon is easily ejectable, and fluffs out rapidly after in vivo ejection from said inserter to fill the vaginal cross-section.
Claim 24
Dependent Claim 124 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said absorbent material having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, and said aggregate being encased within a flexible fluid-permeable overwrap, the volume packing factor of said tampon being less than or equal to about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, said tampon being resiliently compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 25
Dependent Claim 124 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said absorbent material having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, and said aggregate being encased within a flexible fluid-permeable overwrap, the volume packing factor of said tampon being less than or equal to about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, said tampon being resiliently compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 26
Dependent Claim 11 words
The device of claim 18 wherein said pieces are irregularly shaped.
Claim 27
Dependent Claim 143 words
The device of claim 19 wherein A. said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion; As an an ancillary absorbent material is distributed within said aggregate; and C. the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 28
Dependent Claim 26 words
The device of claim 18 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 29
Dependent Claim 109 words
The device of claim 18 wherein said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposite longitudinal end and the interior surface of said cavity is formed by said reentrant portion.
Claim 30
Dependent Claim 15 words
The device of claim 18 wherein an ancillary absorbent material is distributed wIthin said aggregate.
Claim 31
Dependent Claim 11 words
The device of claim 17 wherein said pieces are irregularly shaped.
Claim 32
Dependent Claim 26 words
The device of claim 24 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 33
Dependent Claim 26 words
The device of claim 17 wherein the size of substantially all of said pieces is within the range of from about 1/16 to about 1.0 inch.
Claim 34
Dependent Claim 109 words
The device of claim 17 wherein said overwrap is essentially tubular, each longitudinal end of the tubular overwrap is gathered radially inwardly to form a closure, one longitudinal portion of the overwrap is a reentrant portion and another longitudinal portion of the overwrap is an exterior portion, said exterior portion forms the outer surface of said device, and said reentrant portion is reentrant upon the combination of said aggregate and said exterior portion, whereby said device has a cavity therewithin, said cavity extending substantially from one longitudinal end of said device toward the opposit longitudinal end and the interior surface of said cavity is formed by said reentrant portion.
Claim 35
Dependent Claim 109 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said absorbent material having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said tampon being resilient compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 36
Dependent Claim 109 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said absorbent material having a dry aggregate modulus of compression at 25 percent compression in the range of about 0.004 to about 0.050 psi, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said tampon being resilient compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 37
Dependent Claim 99 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, the volume packing factor of said tampon being less than or equal to about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, said tampon being resiliently compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 38
Dependent Claim 99 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, said aggregate being encased within a flexible fluid-permeable overwrap, the volume packing factor of said tampon being less than or equal to about 2.0 cubic inches of the absorbent material per cubic inch available within the overwrap, said tampon being resiliently compacted within said inserter, whereby the tampon is easy to eject from the inserter.
Claim 39
Dependent Claim 75 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said tampon being resiliently compacted within said inserter.
Claim 40
Dependent Claim 75 words
An absorptive device, comprising: an absorptive tampon, a tubular inserter, and ejection means operatively associated with said tampon and said inserter for releasing said tampon from said inserter into a body cavity; said tampon being an aggregate of individual pieces of absorbent foamlike material, an ancillary absorbent material being distributed within said aggregate, and said aggregate and ancillary absorbent material being encased within a flexible fluid-permeable overwrap, said tampon being resiliently compacted within said inserter.

References Cited (Backward Citations)

DE606627C Cited
FR718042A Cited
DE805662C Cited
US3013558A Cited
DE1121770B Cited
US3306966A Cited
US3431911A Cited
US3559646A Cited
US3674025A Cited
US3712305A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-10 1977-12-10 1978-06-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-10 1981-12-10 1982-06-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-10 1985-12-10 1986-06-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag