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:
Jan. 04, 1977
Filed:
Oct. 01, 1975
Rano J Harris, Jr, Baton Rouge, LA (US);
Other;
Abstract
An improved automatic fluid injector, or syringe, for accurately measuring and injecting quantities of fluid specimens, or samples, into various media, e.g., a receptacle or inlet of a modern analytical instrument. The apparatus includes the general combination of (a) an injector, or syringe sub-assembly, inclusive of a needle syringe provided with a forward mounted needle and rearwardly mounted reciprocable plunger, (b) an injector feed sub-assembly provided with a reciprocable hollow probe, or probes, for pick-up of a fluid specimen for use in purging, cleaning and filling said syringe, and (c) a magazine, or feed tray, for transporting fluid specimen containing vials and positioning same relative to the injector feed assembly for pick-up of the fluid specimen, and delivery to the syringe. Sub-assembly (a), inclusive of a plunger actuation means, is mounted upon a plate slidable upon a base plate, and means are also mounted upon said base plate for actuation and reciprocation of said slide plate for thrust of the dispensing end of the needle of the syringe into a tubular member, provided with a sealed entry feature, adjacent the inlet to the analytical instrument. Sub-assemblies (b) and (c) are also mounted upon the base plate, sub-assembly (b) picking up a fluid specimen from (c) for delivery to said tubular member at which location fluid specimen is transferred to the syringe of sub-assembly (a).