Portable breathing apparatus

• US 20060130834A1
• Filed: 12/20/2004
• Published: 06/22/2006
• Est. Priority Date: 12/20/2004
• Status: Active Grant

• Current Assignee: Yu-Hu Chen
• Original Assignee: Yu-Hu Chen
• Inventors: Chen, Yu-Hu
• Granted Patent: US 7,409,952 B2
• Time in Patent Office: Days
• US Class Current: 128/204.210
• CPC Class Codes: A62B 18/006 with pumps for forced ventilation A62B18/045 takes precedence
• CPC Class Codes: A62B 23/02 for respirators

Abstract

A portable breathing apparatus has a respirator and a filter. The filter has a multifunctional strainer, a photocatalyst element, an exhauster, a high-pressure generator and an active carbon net in the interior thereof. Via the exhauster, external air can be filtered by the multifunctional strainer and mixed with ozone and negative ions generated from the photocatalyst element and the high- pressure generator thereby filtering and sterilizing the external air. Furthermore, the external air passes through a tube via the active carbon net to the respirator. Hence, it is easy for people wearing the portable breathing apparatus to breathe and experience the functions of air sterilization and filtration.

Claims

1. A portable breathing apparatus comprising:

a respirator (10) and a filter (20);

the filter (20) having a hollow shell;

a hole (21) defined in a front end of the hollow shell;

a switch (22) provided below the hole (21);

an opening (27) defined in a rear end of the hollow shell;

a tube (11) inserted in the opening (27) and connected to the respirator (10);

a multifunctional strainer (23), a photocatalyst element (24) and an exhauster (25) provided in the hollow shell in turn;

a circuit card (28) and a battery unit (29) respectively mounted on a lower end of the hollow shell; and

the multifunctional strainer (23) mounted adjacent the hole (21) and the exhauster (25) mounted adjacent the opening (27).

2. The portable breathing apparatus as claimed in claim 1, wherein the photocatalyst element (24) has two photocatalyst pieces (241, 243) and an ultraviolet light (242) which is provided between the two photocatalyst pieces (241, 243).

3. The portable breathing apparatus as claimed in claim 1, wherein a high-pressure generator (26) and an active carbon net (30) are provided between the opening (27) and the exhauster (25).

4. The portable breathing apparatus as claimed in claim 1, wherein the battery unit (29) is received into a lower opening end of the hollow shell, and the battery unit is covered with a battery cap (201).

5. The portable breathing apparatus as claimed in claim 3, wherein the multifunctional strainer (23) and the active carbon net (30) have replaceable filtering materials.

6. The portable breathing apparatus as claimed in claim 5, wherein a vane cap (211) is inserted in the hole (21), multiple rods (212) are provided adjacent the vane cap (211) and the multifunctional strainer (23) is provided between the vane cap (211) and the multiple rods (212).

7. The portable breathing apparatus as claimed in claim 6, wherein the exhauster (25) is a fan.

8. The portable breathing apparatus as claimed in claim 6, wherein the exhauster (25) is a compressor.