US3570491A — Disposable sanitary pad

Claim 1

Independent Claim 233 words

A disposable sanitary panty pad adapted to be removably mounted and retained in a crotch of an undergarment such as a panty, girdle and the like, the pad maintained in the crotch by means of a nontoxic adhesive, the panty pad comprising: (a) a high-absorbency fill member of preselected contour and of a relative thinness; (b) a top cover member of high-absorbency and of a width slightly wider than the widest portion of the fill member; (c) an adhesive portion disposed to retain at least the side portions of the cover to the sides of said fill member; (d) an impervious back member of about one-thousandth to twothousandths of an inch in thickness and of a width disposed to coincide with the widest part of the fill member; (e) means for retaining the ends of the top cover to the impervious back member at portions adjacent thE ends of the fill member; (f) a nontoxic contact-type adhesive surface provided on the exposed surface of the impervious back cover, the adhesive providing sufficient tack to retain the mounted pad to the fabric surface of the crotch of the undergarment, the contact-type adhesive disposed to remain on the plastic cover as the used pad is peeled from the undergarment, and (g) a pullaway cover sized to cover the nontoxic adhesive surface of the back cover, the pullaway cover disposed for ready release from the adhesive.

Claim 2

Dependent Claim 233 words

A disposable sanitary panty pad adapted to be removably mounted and retained in a crotch of an undergarment such as a panty, girdle and the like, the pad maintained in the crotch by means of a nontoxic adhesive, the panty pad comprising: (a) a high-absorbency fill member of preselected contour and of a relative thinness; (b) a top cover member of high-absorbency and of a width slightly wider than the widest portion of the fill member; (c) an adhesive portion disposed to retain at least the side portions of the cover to the sides of said fill member; (d) an impervious back member of about one-thousandth to twothousandths of an inch in thickness and of a width disposed to coincide with the widest part of the fill member; (e) means for retaining the ends of the top cover to the impervious back member at portions adjacent thE ends of the fill member; (f) a nontoxic contact-type adhesive surface provided on the exposed surface of the impervious back cover, the adhesive providing sufficient tack to retain the mounted pad to the fabric surface of the crotch of the undergarment, the contact-type adhesive disposed to remain on the plastic cover as the used pad is peeled from the undergarment, and (g) a pullaway cover sized to cover the nontoxic adhesive surface of the back cover, the pullaway cover disposed for ready release from the adhesive.

Claim 3

Dependent Claim 46 words

A disposable panty pad as in claim 1, in which the cover member is a nonwoven fabric of single thickness and whose side portions are folded over the sides of the high-absorbency fill and are brought over and onto the sides of the impervious back member.

Claim 4

Dependent Claim 35 words

A disposable panty pad as in claim 2, in which the impervious back member is of plastic such as polyvinyl and whose width is not more than the widest part of the high-absorbency fill member.

Claim 5

Dependent Claim 59 words

A disposable panty pad as in claim 3, in which the means for retaining the ends of the top cover member to the impervious back member is an adhesive disposed between the cover and back members and adjacent the ends of the high-absorbency fill member, and with the cover member and back member pressed together in an assembled condition.

Claim 6

Dependent Claim 30 words

A disposable panty pad as in claim 3, in which the means for retaining the ends of the top cover member to the impervious back member is by heat sealing.

Claim 7

Dependent Claim 47 words

A disposable panty pad as in claim 1, in which the nontoxic adhesive providing the contact-type adhesive surface is a rubber-base adhesive, and in which the pullaway cover is paper and has one surface treated with silicone to provide the ready release from the contact-type adhesive surface.

Claim 8

Dependent Claim 26 words

A disposable panty pad as in claim 1, in which the high-absorbency fill member is of fiber and is about one-eighth of an inch in thickness.

Claim 9

Dependent Claim 150 words

A disposable body-contact pad adapted to be removably carried by self-adhesion to an inner surface of a garment, comprising (a) a layer of high-absorbency fill material, (b) a relatively thin top cover layer of flexible porous material, said top layer and said fill layer being continuously secured to each other about the periphery of said pad, (c) an impervious thin plastic back layer adhered to the underside of said fill layer, (d) a nontoxic contact-type adhesive surface on the exposed surface of said plastic back layer, the adhesive providing sufficient tack to retain the mounted pad to the inner fabric surface of a garment, said adhesive being disposed to remain on the plastic cover as the used pad is peeled from the garment, and (e) a pullaway cover sized to cover the nontoxic adhesive surface of the back layer, the pullaway cover being disposed for ready release from the adhesive.

Claim 10

Dependent Claim 150 words

A disposable body-contact pad adapted to be removably carried by self-adhesion to an inner surface of a garment, comprising (a) a layer of high-absorbency fill material, (b) a relatively thin top cover layer of flexible porous material, said top layer and said fill layer being continuously secured to each other about the periphery of said pad, (c) an impervious thin plastic back layer adhered to the underside of said fill layer, (d) a nontoxic contact-type adhesive surface on the exposed surface of said plastic back layer, the adhesive providing sufficient tack to retain the mounted pad to the inner fabric surface of a garment, said adhesive being disposed to remain on the plastic cover as the used pad is peeled from the garment, and (e) a pullaway cover sized to cover the nontoxic adhesive surface of the back layer, the pullaway cover being disposed for ready release from the adhesive.

Claim 11

Dependent Claim 38 words

A pad according to claim 8, in which one of said first two mentioned layers includes a thermoplastic material, said thermoplastic material being consolidated in a peripherally continuous margin of reduced thickness of said first two mentioned layers.

Claim 12

Dependent Claim 14 words

The pad of claim 8, in which said first-mentioned layer contains the thermoplastic material.

Claim 13

Dependent Claim 14 words

The pad of claim 10, in which said second layer is bleached cellulose wadding.

Claim 14

Dependent Claim 14 words

The pad of claim 10, in which said first-mentioned layer is a nonwoven fabric.

Claim 15

Dependent Claim 15 words

The pad of claim 10, in which said plastic back layer is a polyethylene sheet.

Claim 16

Dependent Claim 19 words

The pad of claim 13, in which said polyethylene sheet is of thickness in the order of one-half mil.

Claim 17

Dependent Claim 94 words

A disposable pad comprising registering multiple layers of essentially the same planform, namely: a. a cover of relatively thin flexible porous material; b. a wadding of absorbent material of substantially uniform thickness; c. a flexible plastic sheet having a tacky adhesive for self-sticking to a garment; and d. a protective sheet partably carried by said adhesive; said wadding being adhered to said plastic sheet, and said cover and wadding beinG secured continuously along the margin of said planform locally consolidated by bonding material permeating adjacent marginal regions of said cover and of said wadding.

Claim 18

Dependent Claim 94 words

A disposable pad comprising registering multiple layers of essentially the same planform, namely: a. a cover of relatively thin flexible porous material; b. a wadding of absorbent material of substantially uniform thickness; c. a flexible plastic sheet having a tacky adhesive for self-sticking to a garment; and d. a protective sheet partably carried by said adhesive; said wadding being adhered to said plastic sheet, and said cover and wadding beinG secured continuously along the margin of said planform locally consolidated by bonding material permeating adjacent marginal regions of said cover and of said wadding.

Claim 19

Dependent Claim 42 words

The pad of claim 15, in which the bonding material is thermally sensitive and is contained in said cover material and is locally released into the margin of said wadding by local marginal compression of said layers in the presence of heat.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-03-15	1974-09-14	1975-03-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-03-15	1978-09-14	1979-03-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-03-15	1982-09-14	1983-03-16	$7700.00	Window Closed / Lapsed

Disposable sanitary pad

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