The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 1998
Filed:
Mar. 24, 1997
Masahito Ueda, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
An automatic injector is used for introducing a specimen into a specimen analyzing device, such as a gas chromatograph or a liquid chromatograph. The automatic injector is formed of a syringe having a needle at one end and a plunger slidably operationally situated inside the syringe for sucking and injecting the specimen through the needle, a syringe supporting member fixed to the syringe for supporting the same and having a sliding guide, and a needle guide. The needle guide includes a vertical plate portion having a groove for slidably engaging the sliding guide, and a horizontal plate portion fixed to the vertical plate portion and having a needle protection with a hole. A tip of the needle is positioned in the hole to prevent the needle from being bent when the needle is moved downwardly. The automatic injector is driven with a small torque.