US4664663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable waterproof encasement and panty for sanitary pad
Assignee: HYGIENICS IND Inc
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Filing: 1985-02-05
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Granted: 1987-05-12
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Expires: 2005-02-05
Abstract
Abstract A disposable waterproof encasement for an absorbent sanitary pad may be releasably secured to an undergarment to convert an everyday undergarment into a sanitary panty or stress incontinence garment. Preferably, the encasement is secured to the panty with the Velcro-type fasteners. The encasement includes a waterproof back and a waterproof marginal front portion secured to the marginal portion of the back to form a water-tight fold. The marginal front portion forms an opening to expose the absorbent pad. The encasement may include an elongated strap bridging the central portion of the opening for retaining the absorbent pad within the encasement. One end portion of the strap may be releasably secured to the front marginal portion to facilitate insertion and removal of the absorbent pad. To ease removing the absorbent pad, the encasement may include an elasticized rubber pad.
Inventors
- 👤 Michael I. Brier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:34
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/66; A61F13/68; A61F13/72; A61F13/45; A61F13/47; A61F13/74; A61F13/76; A61F13/62; A61F13/622; A61F13/64; A61F13/49; A61F2013/49068; A61F2013/49076; A61F2013/5694
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A liquidproof encasement for an absorbent pad having an adhesive strip comprising a liquidproof back member, a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for an absorbent pad insertable, within said encasement, and means to reduce the adherence of said adhesive strip of such absorbent pad to the encasement comprising a layer of gum rubber between the front member and the back member having a size greater than the opening in the front member.
Claim 2
Dependent Claim
97 words
A liquidproof encasement for an absorbent pad having an adhesive strip comprising a liquidproof back member, a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for an absorbent pad insertable, within said encasement, and means to reduce the adherence of said adhesive strip of such absorbent pad to the encasement comprising a layer of gum rubber between the front member and the back member having a size greater than the opening in the front member.
Claim 3
Dependent Claim
24 words
The liquidproof encasement according to claim 1, wherein the adherence reducing layer is gum rubber coated on at least one side with a powder.
Claim 4
Dependent Claim
80 words
A liquidproof encasement for an absorbent pad having an adhesive strip comprising a liquidproof back member, a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for an absorbent pad insertable, within said encasement, and means to reduce the adherence of said adhesive strip of such absorbent pad to the encasement comprising a lubricant applied to the back member.
Claim 5
Dependent Claim
80 words
A liquidproof encasement for an absorbent pad having an adhesive strip comprising a liquidproof back member, a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for an absorbent pad insertable, within said encasement, and means to reduce the adherence of said adhesive strip of such absorbent pad to the encasement comprising a lubricant applied to the back member.
Claim 6
Dependent Claim
21 words
The liquidproof encasement according to claim 3, wherein the lubricant is a silicone spray, a powder, or silcone and mineral spirits.
Claim 7
Dependent Claim
124 words
A sanitary napkin kit comprising a plurality of absorbent pads; at least one disposable liquidproof encasement for said pad, said encasement including a liquidproof back member and a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for the insertion of one of the absorbent pads within the encasement, said absorbent pads having a strip of adhesive to aid in maintaining the pad within the encasement; and means for reducing the adherence of said absorbent pad adhesive strip comprising a layer of gum rubber between the front member and the back member having a size greater than the opening of the front member.
Claim 8
Dependent Claim
124 words
A sanitary napkin kit comprising a plurality of absorbent pads; at least one disposable liquidproof encasement for said pad, said encasement including a liquidproof back member and a liquidproof front member secured to the marginal portion of said back member to form a liquid-tight seam around the entire periphery of the encasement, said front member having an opening for the insertion of one of the absorbent pads within the encasement, said absorbent pads having a strip of adhesive to aid in maintaining the pad within the encasement; and means for reducing the adherence of said absorbent pad adhesive strip comprising a layer of gum rubber between the front member and the back member having a size greater than the opening of the front member.
Claim 9
Dependent Claim
20 words
The kit according to claim 5, wherein the gum rubber is coated on at least one side with a powder.
Claim 10
Dependent Claim
19 words
The kit according to claim 5, wherein the adherence reducing means is a lubricant applied to the back member.
Claim 11
Dependent Claim
20 words
The kit according to claim 7, wherein the lubricant is a silicone spray, a powder, or silicone and mineral spirits.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |