FULL FACE RESPIRATORY PROTECTION DEVICE

• US 20070235031A1
• Filed: 03/31/2006
• Published: 10/11/2007
• Est. Priority Date: 03/31/2006
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Betz, James
• Application Number:
  US11/278,277
• Publication Number:
  US 20070235031A1
• Time in Patent Office: Days
• US Class Current: 128/206.210
• CPC Class Codes: A62B 18/02 Masks gas-masks for animals A62B18/06; masks for welders A61F9/06
• CPC Class Codes: A62B 18/082 Assembling eyepieces, lenses or vision-correction means in or on gas-masks

Abstract

A full face respiratory protection device that comprises a face seal; one or more parts for supplying clean air to the interior gas space; a harness for supporting the mask on a wearer'"'"'s face; and a lens that is coupled to the face seal and that assists in establishing an effective field of view greater than 95% and a peripheral field of view greater than 60%.

Claims

1. A full face respiratory protection device that comprises:

(a) a face seal;

(b) one or more parts for supplying clean air to the interior gas space;

(c) a harness for supporting the mask on a wearer'"'"'s face; and

(d) a lens that is coupled to the face seal and that assists in establishing an effective field of view greater than 95% and a peripheral field of view greater than 60%.

2. The respiratory device of claim 1, wherein the peripheral field of view is greater than 70%.

3. The respiratory device of claim 1, wherein the peripheral field of view is greater than 80%.

4. The respiratory device of claim 1, wherein the effective field of view is greater than 98%.

5. The respiratory device of claim 1, wherein the effective field of view is greater than 99%.

6. The respiratory device of claim 1, wherein the effective field of view is greater 98% and the peripheral field of view is greater than 80%.

7. The respiratory device of claim 1, wherein the lens includes a cylindrical cross-section about a vertical axis.

8. The respiratory device of claim 1, wherein the harness is coupled to the face seal.

9. The respiratory device of claim 1, wherein the face seal extends behind eyes of the wearer when viewing the wearer'"'"'s profile from the side.

10. The respiratory device of claim 1, wherein the lens extends behind the eyes of the wearer when viewing the wearer'"'"'s profile from the side.