Air recycling device for auxiliary respiration apparatus

a technology of air recycling device and respiration apparatus, which is applied in the direction of breathing filter, underwater equipment, breathing protection, etc., can solve the problems of waste of remaining oxygen gas, and low utility rate of oxygen gas, so as to prolong the available duration of the air tank

Inactive Publication Date: 2010-05-27
CHANG TA HSIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The main objective of the invention is to provide an air recycling device for auxiliary respiration apparatus that recycles expired air for user to inhale again so the available duration of the air tank will be extended.

Problems solved by technology

Because the diver requires the same quantity of oxygen gas, the remaining oxygen gas will be wasted and the utility rate of the oxygen gas is low.
Furthermore, firemen use the similar auxiliary respiration apparatus, and the utility rate of the oxygen gas is also low even though the percentage of air of the oxygen gas does not vary in the scene of a fire.

Method used

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  • Air recycling device for auxiliary respiration apparatus
  • Air recycling device for auxiliary respiration apparatus
  • Air recycling device for auxiliary respiration apparatus

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Embodiment Construction

[0026]With reference to FIG. 1, an air recycling device for auxiliary respiration apparatus in accordance with the present invention may be used to diver auxiliary respiration apparatus. The air recycling device comprises a casing (10), an air gather assembly, a valve assembly and a pressure switch unit.

[0027]With further reference to FIGS. 2 and 3, the casing (10) has a regulator connector (11), an air feeder (12) and an air exchange hole (13) and may comprise a transmission room (101), a valve room (102), two partitions (102a), a pressure detection room (103) and a drive room (104).

[0028]The regulator connector (11) is used to communicate with a second stage of a diving regulator.

[0029]The air feeder (12) provides air to a diver and can be held in the diver's mouth with a mouthpiece.

[0030]The valve room (102) is adjacent to the transmission room (101) and communicates with the regulator connector (11), the air feeder (12) and the air exchange hole (13).

[0031]The partitions (102a) ...

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PUM

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Abstract

An air recycling device for auxiliary respiration apparatus has a casing, an air gather assembly, a valve assembly and a pressure switch unit. The casing has a regulator connector and an air feeder. The air gather assembly communicates with the casing. The valve assembly selectively blocks the communication either between the air feeder and the air gather assembly or between the regulator connector and the air feeder. In the moment between inhaling and exhaling, the pressure switch unit drives the valve assembly to block the communication between the air feeder and the regulator connector to gather the air expired from the user into the air gather assembly. When the user inhales again, the user inhales the air in the air gather assembly. The subsequently expired air flows through the regulator connector to a diving regulator. The air expired by the diver is recycled.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an air recycling device for auxiliary respiration apparatus, and more particularly to an air recycling device that recycles expired air for user to inhale again so the air tank can be used longer.[0003]2. Description of Related Art[0004]Beach actions are popular with people in summer time, especially diving. Diving could be snorkeling or scuba diving. Snorkeling is an action of swimming at the surface of water so an air tank is not required. Scuba diving is an action of swimming underwater so divers must carry air tanks.[0005]The air tank stores high pressure air and supplies the air to the diver with a diving regulator. The diving regulator is used to regulate the pressure of the air in the air tank to allow the diver breathing as usual on land. A diving regulator comprises a first stage and a second stage. The first stage communicates with the air tank. The second stage connects to a m...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B63C11/24
CPCB63C11/24
Inventor CHANG, TA-HSIANG
Owner CHANG TA HSIANG
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