IP Library › Granted Patent US 6,849,775
Granted Patent B2
US 6,849,775 · App. 10/434,644 · Granted Feb 1, 2005

Method of forming absorbent pad using precut overlay

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,849,775
App. No.
10/434,644
Granted
Feb 1, 2005
Kind
B2
Abstract

A method of forming a generally leak-proof peripherally sealed absorbent pad and a pad formed by such method are disclosed herein. Non-sealed layered pads are formed by assembling the following layers: (1) a sheet of liquid-impermeable material; (2) bibulous pads disposed on the sheet of liquid-impermeable material, the bibulous pads disposed relative to each other based on a predetermined spacing; (3) a liquid-permeable sheet disposed on top of the bibulous pads; and (4) a sheet of liquid-impermeable material having precut apertures disposed on the liquid-permeable sheet, the apertures sized and shaped to be framed by the pads and spaced relative to each other based on the predetermined spacing. The non-sealed layered pads are then sealed along a periphery of the precut apertures to the sheet of liquid-impermeable material to form a sheet of absorbent pads. The sheet of absorbent pads are then cut proximate sealed edges of the precut apertures to form a plurality of generally leak-proof peripherally sealed absorbent pads.

Claims (26)

1. A method of forming a generally leak-proof peripherally sealed absorbent pad, the method comprising:

forming a plurality of non-sealed layered pads by assembling layers comprising:

a sheet of liquid-impermeable material;

a plurality of bibulous pads disposed on the sheet of liquid-impermeable material, the bibulous pads disposed relative to each other based on a predetermined spacing;

a liquid-permeable sheet disposed on top of the plurality of absorption pads; and

a sheet of liquid-impermeable material having a plurality of precut apertures disposed on the liquid-permeable sheet, the apertures sized and shaped to be framed by the bibulous pads and spaced relative to each other based on the predetermined spacing;

sealing the plurality of non-sealed layered pads along a periphery of the precut apertures to the sheet of liquid-impermeable material to form a sheet of absorbent pads; and

cutting the sheet of absorbent pads proximate sealed edges of the precut apertures forming a plurality of generally leak-proof peripherally sealed absorbent pads.

2. The method of claim 1 , wherein a conveyor belt is used for assembling the layers of the non-sealed layered pads.

3. The method of claim 1 , wherein sealing the plurality of non-sealed layered pads comprises heat sealing the plurality of non-sealed layered pads.

4. The method of claim 1 , wherein sealing the plurality of non-sealed layered pads comprises sonic welding the plurality of non-sealed layered pads.

5. The method of claim 1 , wherein sealing the plurality of non-sealed layered pads comprises adhesively bonding the plurality of non-sealed layered pads.

6. The method of claim 1 , wherein the outer layer is made of a plastic film material.

7. The method of claim 6 , wherein the precut frame is made of a plastic film material.

8. The method of claim 1 , wherein the precut frame is made of a plastic film material.

9. The method of claim 1 , wherein the liquid-permeable sheet is made of an absorbent paper.

10. The method of claim 9 , wherein the liquid-permeable sheet is made of an air laid material.

11. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used for wound care.

12. The method of claim 11 , wherein the respective generally leak-proof peripherally sealed absorbent pad is used for patient recovery from a tumescent liposuction procedure.

13. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used as a surgery table drip pad.

14. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used to topically apply chemicals.

15. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used as a pre-moistener.

16. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used for burn care.

17. The method of claim 16 , wherein the respective generally leak-proof peripherally sealed absorbent pad is used to apply an anti-microbial.

18. The method of claim 1 , wherein a respective generally leak-proof peripherally sealed absorbent pad is used to absorb poultry juice.

19. A sealed absorbent pad produced according to the process of claim 1 .

Continuity (1)
Related Publication 20040225248A1 · Nov 11, 2004