# US 9,751,795 B2 · Vial and method for producing the same

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- Number: US 9,751,795 B2
- Document ID: US9751795B2
- Status: Granted
- Kind: B2
- Application number: 13/846,428
- Filed: 2013-03-18
- Published: 2013-09-12
- Granted: 2017-09-05
- Earliest claimed: 2005-05-16
- Assignees: Nipro Corporation
- Applicants: Nipro Corporation
- Inventors: Hideo Kuwabara; Hideki Yamauchi; Yoshitaka Ishimi; Shinichiro Senga
- Web page: https://patentgrep.com/patent/US9751795B2

## CPC

- C03B 23/09: Reshaping the ends, e.g. as grooves, threads or mouths
- C03B 23/0093: {Tools and machines specially adapted for re-forming shaped glass articles in general, e.g. chucks (C03B23/0086, C03B23/02, C03B23/04, C03B23/18 take precedence)}
- C03B 23/099: {by fusing, e.g. flame sealing}
- C03B 29/02: in a discontinuous way
- C03C 23/007: {by thermal treatment}
- A61J 1/14: Details; Accessories therefor (A61J7/00 takes precedence; openers B65D, B67B7/00)
- C03B 23/006: {by fusing, e.g. for flame sealing (C03B9/42, C03B21/06, C03B23/02, C03B23/04, C03B23/18, C03B33/08 take precedence)}
- C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE

## Abstract

A method for producing a vial with low alkali elution by removing a deteriorated region caused by processing on an internal surface of a vial is disclosed. The method involves forming vials from borosilicate glass tubes including a first step of forming a borosilicate glass tube into a cup-shaped body by formation of a bottom of a vial, and a second step of forming the cup-shaped body into the vial by formation of a mouth of the cup-shaped body.

## Claims

### Claim 1

A method for producing a vial with low alkali elution by forming the vial from a borosilicate glass tube, said method comprising:
forming the borosilicate glass tube into a cup-shaped body to form a bottom of the vial as a first step,
fire-blasting an internal surface of the cup-shaped body with a flame is carried out as a second step to remove a deteriorated region caused by processing, and
then forming a mouth of the vial is carried out as a third step.

### Claim 2 (depends on 1)

The method according to claim 1, wherein said fire-blasting is carried out from the bottom of the cup-shaped body toward an opening of the cup-shaped body by a certain length with the flame.

### Claim 3 (depends on 2)

The method according to claim 2, wherein said flame is a gas-and-oxygen flame produced by a point burner.

### Claim 4 (depends on 2)

The method according to claim 2 wherein said fire-blasting is carried out while rotating the vial.

### Claim 5 (depends on 1)

The method according to claim 1, wherein said flame is a gas-and-oxygen flame produced by a point burner.

### Claim 6 (depends on 5)

The method according to claim 5 wherein said fire-blasting is carried out while rotating the vial.

### Claim 7 (depends on 1)

The method according to claim 1 wherein said fire-blasting is carried out while rotating the vial.