Structure of a diaper

• US 6,090,994 A
• Filed: 10/26/1998
• Issued: 07/18/2000
• Est. Priority Date: 10/26/1998
• Status: Expired due to Fees

• Current Assignee: Chuan-Mei Chen
• Original Assignee: Chuan-Mei Chen
• Inventors: Chen, Chuan-Mei
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): RUHL, DENNIS WILLIAM
• Application Number:
  US09/178,560
• Time in Patent Office: 631 Days
• Field of Search: 604/385.01, 604/385.03, 604/385.04, 604/385.12, 604/385.201, 604/385.21, 604/385.23, 604/385.101
• US Class Current: 604/378
• CPC Class Codes: A61F 13/49 Absorbent articles specially adapted to be worn around the waist, e.g. diapers
• CPC Class Codes: A61F 13/514 Backsheet, i.e. the impermeable cover or layer furthest from the skin A61F13/15211, A61F13/15252 take precedence
• CPC Class Codes: A61F 13/51476 being three-dimensional, e.g. embossed, textured, pleated, or with three-dimensional features, like gathers or loops
• CPC Class Codes: A61F 2013/51492 having specially shaped gas or air bubbles or bag-like structure

Abstract

A diaper includes an outer layer, a ventilating layer made of resilient material and mounted on an inner side of the otuer layer, the ventilating layer having an outer frame, a plurality of convex cross-shaped ribs each enclosed with a circular edge, and a plurality of elongated ribs joining adjacent circular edges of the convex cross-shaped ribs and the outer frame together, absorbent layer arranged on the ventilating layer, and a permeable layer made of non-woven fabric and disposed on the absorbent layer, whereby the diaper is of good ventilation and can prevent liquid discharge from leaking out thereof.

Claims

1. A diaper comprising:

an outer layer;

a ventilating layer made of resilient material and mounted on an inner side of said outer layer, said ventilating layer having an outer frame, a plurality of convex cross-shaped ribs each enclosed with a circular edge, and a plurality of elongated ribs joining adjacent circular edges of said convex cross-shaped ribs and said outer frame together;

absorbent layer arranged on said ventilating layer; and

a permeable layer made of non-woven fabric and disposed on said absorbent layer;

whereby said diaper is formed with a plurality of raised circular convex portions.

2. The diaper as claimed in claim 1, further comprising two leak-proof flaps each having a longitudinal outer side portion secured to a longitudinal outer side portion of said outer layer and a longitudinal inner portion secured to a longitudinal side portion of said permeable layer thereby forming a groove extending into said absorbent layer.

3. The diaper as claimed in claim 1, further comprising two sponges each fitted between a transverse outer side portion of said outer layer and a transverse side portion of said permeable layer.