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 Title: |
US5054481:
Infusion apparatus to supply compressed air into an industrial mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Shin, Hae-Ryun; Seoul, Republic of Korea
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| Assignee: |
None
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| Published / Filed: |
1991-10-08
/ 1990-08-29
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| Application Number: |
US1990000574343
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| IPC Code: |
Advanced:
A62B 7/02;
Core:
A62B 7/00;
IPC-7:
A62B 7/02;
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| U.S. Class: |
Current:
128/205.12;
128/204.18;
128/205.25;
128/205.27;
128/205.29;
128/206.12;
128/206.15;
128/206.28;
Original:
128/205.12;
128/204.18;
128/205.25;
128/205.27;
128/205.29;
128/206.12;
128/206.15;
128/206.28;
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| Field of Search: |
128/204.18,205.12,205.27,205.25,205.29,206.12,206.15,206.28,207.12,207.16
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| Priority Number: |
| 1990-08-29 |
US1990000574343 |
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| Abstract: |
An infusion apparatus to supply compressed air into an industrial mask having a "T"-shape decompressing regulator at a first end of which is provided a conventional coupling device while at a second end, inner screw threads are formed into which a pressure reducing bolt is inserted to regulate the opening of an air supply channel below of which there is provided a purification receptacle filled with carbon filter which is linked by a hose to another purification receptacle filled with carbon filter. Inside of the conventional dustproof mask there is provided an air exhaust hose in a circular form the end of which is penetrating out of the mask and connected to said purification receptacle. Another drill coupling adapter is provided between the oiler and compressed air hose of a rock drill. On the sides of the drill coupling adapter three grooves are formed so as to fixedly insert another coupling device into one of the grooves and one of the remaining two grooves is blocked with a plug and the other inserted with an elbow. Where there is no rock drill being in use, the apparatus of the present invention may be connected to a compressed air hose brought into a work site.
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| Attorney, Agent or Firm: |
Finnegan, Henderson, Farabow, Garrett & Dunner ;
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| Primary / Asst. Examiners: |
Burr, Edgar S.; Raciti, Eric P.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 5 claims |
What is claimed is:
1. An infusion apparatus for supplying compressed air into an industrial mask, comprising:
- a T-shaped decompressing regulator having a first coupling device at a first end and an inner threaded portion at a second end;
- an air supply channel formed in said regulator;
- a pressure bolt inserted into said threaded portion to regulate the opening of said air supply channel;
- a first purification receptacle, having a carbon filter disposed therein, provided immediately below said air supply channel;
- a second purification receptacle, having a carbon filter disposed therein, fixedly attached to the industrial mask;
- a hose linking said first and second purification receptacles; and
- an air exhaust hose arranged in a substantially circular loop having an end portion extending out of said mask and connected to said second purification receptacle.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 4 U.S. patent(s) that reference this one
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