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 Title: |
US3971369:
Folded cup-like surgical face mask and method of forming the same
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Aspelin, Gary B.; Bridgewater, NJ
Smith, James T.; Edison, NJ
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| Assignee: |
Johnson & Johnson, New Brunswick, NJ
other patents from JOHNSON + JOHNSON (296210) (approx. 768)
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| Published / Filed: |
1976-07-27
/ 1975-06-23
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| Application Number: |
US1975000589721
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| IPC Code: |
Advanced:
A41D 13/11;
Core:
A41D 13/05;
IPC-7:
A61M 16/00;
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| ECLA Code: |
A41D13/11B2;
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| U.S. Class: |
Current:
128/206.19;
128/206.24;
Original:
128/146.2;
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| Field of Search: |
128/141 R,140 R,139,132 D,146,146.2,146.3,146.6,146.7
002/206
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| Priority Number: |
| 1975-06-23 |
US1975000589721 |
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| Abstract: |
A generally cup-shaped surgical facemask and a method for folding the body portion thereof, said body portion comprising a filtration medium, the method comprising (1) providing a blank of said filtration medium; (2) establishing a longitudinal fold line on said blank; (3) establishing first, second, and third transverse lines of demarcation on said blank, said second and third lines being on opposite sides of said first line; (4) establishing first and second points on one side edge and third and fourth points on the other side edge of the blank; (5) establishing angularly disposed fold lines which connect said points with said longitudinal fold line; (6) creasing said blank along said longitudinal fold line; and (7) moving said first and second points on one of said side edges and said third and fourth points on the other side edge to new positions lying between said second and third transverse lines of demarcation.
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| Primary / Asst. Examiners: |
Michell, Robert W.; Recla, Henry J.
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| Family: |
None
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First Claim:
Show all 22 claims |
What is claimed is:
1. A method for forming the body portion of a generally cup-like facemask comprising a body portion and means for holding the mask over the nose and mouth of a wearer, said body portion comprising a filtration medium, said method comprising:
- 1. providing a blank of said filtration medium, said blank having top and bottom edges and a pair of opposed side edges;
- 2. establishing on said blank a longitudinal fold line running from top to bottom thereof;
- 3. establishing a first transverse line of demarcation on said blank, said first line being substantially parallel to the top and bottom edges of said blank and extending from side to side thereof;
- 4. establishing a second transverse line of demarcation on said blank, said second transverse line extending from side to side of said blank, said second line being between, and generally parallel to, said first transverse line and one of said top and bottom edges of the blank;
- 2.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 55 U.S. patent(s) that reference this one
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