Respiratory protection device

• US 7,594,510 B2
• Filed: 03/31/2006
• Issued: 09/29/2009
• Est. Priority Date: 03/31/2006
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Larson, Scott A., Harmon, Brandon H., Betz, James R., Viner, Andrew S., Castiglione, David M.
• Primary Examiner(s): Douglas; Steven O
• Application Number:
  US11/278,265
• Publication Number:
  US 20070235032A1
• Time in Patent Office: 1,278 Days
• Field of Search: 128/200.28, 128/201.12, 128/201.14, 128/201.22, 128/201.23, 128/201.24, 128/202.27, 128/205.25, 128/857, 128/858, 128/206.24, 128/205.27, 128/206.12, 128/206.21, 241/0, 242/2, 242/4, 242/6, 242/7, 2/9, 220/6
• US Class Current: 128/205.27
• 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 respiratory device includes a face seal and a unitary body that forms an interface with the face seal and includes a lens and a chassis. The chassis includes at least one port for fluidic connection.

Claims

1. A respiratory device, comprising:

a face seal including a harness configured to secure the respiratory device to a head of a wearer; and

a unitary body configured to form an interface with the face seal and further configured to separate from the face seal, wherein the unitary body comprises;

a lens; and

a chassis that is affixed to the lens, wherein the chassis includes at least one port for fluidic connection.

2. The device of claim 1 wherein the lens is formed of a first material and the chassis is formed of a second material that is different from the first material.

3. The device of claim 2 wherein the first material is polycarbonate and the second material is a blend of polyester and polycarbonate.

4. The device of claim 1 and further comprising:

a frame adapted to provide a clamp between the face seal and the unitary body.

5. The device of claim 1 wherein the lens is transparent and the chassis is opaque.

6. The device of claim 1 and further comprising:

air treatment media operably coupled to the at least one port.

7. The device of claim 1 wherein the chassis further includes a speaking port.

8. The device of claim 1 wherein at least one of the chassis and the lens forms an interface with the face seal.

9. The device of claim 1, wherein the lens is one of clear, tinted, polarized and auto darkening.

10. A combination, comprising:

a face seal including a harness configured to secure the respiratory device to a head of a wearer;

a first unitary body adapted to interface with the face seal and further adapted to separate from the face seal, the first unitary body including a first lens and a first chassis, the first chassis being affixed to the first lens, wherein the first chassis includes at least one port for fluidic connection; and

a second unitary body adapted to interface with the face seal and further adapted to separate from the face seal, the second unitary body including a second lens and a second chassis, the second chassis being affixed to the second lens, wherein the second chassis includes at least one port for fluidic connection that is different from the at least one port for fluidic connection of the first chassis.

11. The combination of claim 10 and further comprising:

a frame adapted to clamp one of the first unitary body and the second unitary body to the face seal.

12. The combination of claim 10 wherein the lens from the first unitary body is made from a first material and the chassis from the first unitary body is made from a second material that is different from the first material.

13. The combination of claim 10 wherein the first unitary body is coupleable to an air supply.

14. A method of operating a respiratory device, comprising:

providing a face seal that includes a harness configured to secure the respiratory device to a head of a wearer;

providing a unitary body that is adapted to form an interface with the face seal, the unitary body including a lens and a chassis, the chassis being affixed to the lens, wherein the chassis includes at least one port for fluidic connection; and

separating the unitary body from the face seal.

15. The method of claim 14 and further comprising:

securing a second unitary body to the face seal such that the second unitary body forms an interface with the face seal.

16. The method of claim 14 wherein providing the unitary body comprises bonding the lens and the chassis together.

17. The method of claim 14 and further comprising:

providing air treatment media that is coupleable to the at least one port.

18. The method of claim 14 and further comprising:

providing a frame adapted to clamp the unitary body to the face seal.

19. The method of claim 14 wherein the chassis is formed of a first material and the lens is formed of a second material that is different from the first material.

20. The method of claim 14 wherein the lens is one of clear, tinted, polarized and auto darkening.