Julius P Averette

51475510, Sep 15, 1992

Apr 20, 1990

7/512194

Julius P. Averette - Baker LA

Dynatech Precision Sampling Corporation - Baton Rouge LA

B01D 1500

210640

Apparatus for processing solids and semi-solids specimens for the extraction therefrom of non-solids or fluid components for analysis. As a sub-assembly, the solids preparation and extraction device can be employed in combination with other sub-assemblies of an automated fluid injector which includes, or further includes, (B) a syringe, (C) an injector feed for introducing a fluid specimen into the syringe, and (D) a feed tray, magazine or carrousel for transporting fluid-specimen containing bottles, or vials for pick up of fluid therefrom by the injector feed assembly for delivery to the syringe. The apparatus embodiment also includes compartmented bottles, or vials, transportable via said feed tray to the solids preparation and extraction sub-assembly, within which a weighed amount of a solids or semi-solids specimen can be placed, crushed and the non-solids components thereof extracted, and removed; and also the process for extracting said non-solids component.

40106489, Mar 8, 1977

Oct 1, 1975

5/618373

Rano J. Harris - Baton Rouge LA
Julius P. Averette - Baton Rouge LA

G01N 114

73423R

An adapter unit, or apparatus for the receipt and containment of a fluid specimen sample under sub-atmospheric or supra-atmospheric pressure. The device is useful in facilitating the transfer of the fluid specimen to a fluid injector device, or needle syringe. In one form, the device is comprised of a valved, closed container the wall of which is fitted with oppositely disposed tubular seals within which is contained a reciprocable plunger. In another form, the device is constituted as an adapter unit which can be adjoined with a valved container for taking a sample therefrom, and subsequently separated therefrom, as desired. In either form, a yoke-like member or C-shaped frame is provided as an overall and necessary part of the combination. One end of the C-shaped frame is secured to a side of the reciprocable plunger, and the other end thereof is provided with a guide or holder. The fluid injector device or syringe can be placed within the holder, and held, such that the needle portion thereof can, in an initial positioning, be partially inserted into the axial opening of a seal adjacent to an end of the reciprocable plunger of the closed container which also lies therein, such that movement of the C-frame will shift the plunger and holder in unison.

41214650, Oct 24, 1978

Jul 21, 1977

5/817818

Rano J. Harris - Baton Rouge LA
Julius P. Averette - Baton Rouge LA

Precision Sampling Corporation - Baton Rouge LA

G01N 114

73422GC

A new and improved magazine for use in automatic fluid injectors, and novel fluid injector for use in accurately measuring and injecting preselected quantitites of fluid specimens, or samples, into various media, e. g. , a receptacle or septum inlet of a modern analytical instrument. In its preferred aspects, the invention is comprised of a new and novel magazine-injector combination. The combination is comprised of (a) a fluid injector sub-assembly, inclusive of a barrel on one end of which is mounted a hollow needle providing an opening from the dispensing end of said needle through said needle and barrel, and on the other end valve means for opening the barrel to permit the ingress of fluid specimen into said barrel and needle and for closure of said barrel to interrupt the flow of fluid specimen through said barrel and needle, (b) an injector feed sub-assembly, inclusive of a probe assembly comprising a gas supply conduit with gas inlet and gas outlet means, a fluid specimen supply conduit with fluid specimen inlet means, and outlet means connected to the barrel and operatively associated with the valve means of said fluid injector sub-assembly, and means for puncturing the septum of the fluid specimen containing vial so that the gas supply and fluid specimen supply conduits can enter into and be within the vial, and (c) said magazine. The magazine is comprised of a closed loop, flexible roller chain upon which fluid vials are carried or transported, in seriatim, past a station for pick-up by the probe assembly of (a) the fluid injector sub-assembly for transfer to the barrel of (b) the injector feed sub-assembly.

48965456, Jan 30, 1990

Apr 22, 1988

7/184797

Julius P. Averette - Baker LA

Dynatech Precision Sampling Corporation - Baton Rouge LA

G01N 3506

7386301

An automated fluid injector which includes, in combination, (A) a syringe, (B) an injector feed assembly for introducing a fluid specimen into the syringe, (C) a magazine for transporting fluid specimens for pick up by the injector feed assembly, and (D) an automatic drop counter. The automatic drop counter counts drops of a fluid specimen overflowed from the barrel, and is responsive to a preselected drop count to cut off the flow of fluid specimen transported from a vial by the probe sub-assembly, and trap a calibrated amount of the fluid specimen for injection. The automatic drop counter can also be used as a safety mechanism to shut down the operation of the instrument when no flow occurs over a preselected interval of time. By virtue of this combination, a wide range of highly volatile and highly viscous fluid specimens can be handled.

47366397, Apr 12, 1988

Jan 7, 1987

7/001198

Julius P. Averette - Baker LA

Dynatch Precision Sampling Corporation - Baton Rouge LA

G01N 3506

7386424

An improved automatic fluid injector is described which includes generally (A) a syringe, or syringe assembly, inclusive of a barrel of relatively large diameter into which a fluid specimen can be loaded, and fluid specimen displaced from the barrel into the inlet of an analytical instrument, (B) an injector feed assembly for the pick up and of a fluid specimen for delivery to the barrel of the syringe, and (C) a magazine for transporting fluid specimen-containing vials for pick up by the injector feed assembly. The combination is one wherein the syringe assembly is integral with a carriage upon which it is mounted, the carriage providing a mechanism for loading a fluid specimen delivered from a vial via the injector feed assembly into the large diameter barrel without the formation of bubbles, or foam.

40446166, Aug 30, 1977

Dec 13, 1976

5/749804

Rano J. Harris - Baton Rouge LA
Julius P. Averette - Baton Rouge LA

G01N 112

73422GC

An automatic fluid injector for accurately injecting preselected quantities of fluid specimens into an inlet of analytical instrument. The overall combination includes (a) the fluid injector sub-assembly, (b) an injector feed assembly for automatically continuously purging, cleaning and filling the barrel of said fluid injector sub-assembly and (c) a magazine, or feed tray, for transporting one or a plurality of vials of fluid specimens to the injector feed assembly for pick-up of the fluid specimen, and delivery to the barrel of said fluid injector sub-assembly. A feature of the invention is that fluid specimen can be passed from the extreme rearward end of the barrel of the fluid injector sub-assembly, entirely through the barrel and needle to purge, clean and remove contaminants as from previous specimens. Another feature is that the fluid specimen is ejected from the fluid injector sub-assembly, on closure of the valve thereof, by the forward movement of the barrel relative to the needle such that the needle moves rearwardly into the barrel to displace and eject fluid specimen through the dispensing end of the needle. An accurately measured fluid specimen is trapped on closure of the valve, after adequate flow through to remove contaminants, the amount of fluid specimen to be injected being predetermined by the preset volume to be displaced from the barrel by the extent of its forward movement which moves the rearward end of the needle into the barrel.

46241485, Nov 25, 1986

Sep 20, 1985

6/778194

Julius P. Averette - Baker LA

Dynatech Precision Sampling Corporation - Baton Rouge LA

G01N 3506

7386421

An apparatus, viz. an automatic fluid injector, useful for the injection of very small, accurately measured quantities of fluid specimens into various media, e. g. , the inlets of modern analytical instruments. The improved apparatus combination embodies an injector feed assembly wherein the probe sub-assembly comprises the combination of (i) an outer rigid tubular needle of relatively large inside diameter, and (ii) an inner flexible tubular needle, one terminal end of which is concentrically contained within said outer rigid tubular needle and of sufficiently small outside diameter to form an annulus between the external surface of said inner flexible tubular needle and the internal surface of said outer rigid tubular needle, while the opposite end of said inner flexible tubular needle is communicated with the barrel of said syringe. The outer rigid tubular needle protects the inner flexible needle on thrust of the probe sub-assembly through the septum of a fluid specimen-containing vial. Thereafter, a terminal end of the inner flexible tubular needle can be moved, or thrust from within the protective interior to the outside of said outer rigid tubular needle, and extended to the very bottom of a fluid specimen-containing vial carried by the magazine such that essentially all of the fluid specimen can be removed from the vial, picked up by the probe sub-assembly, and delivered to the barrel of the syringe for injection.

48153257, Mar 28, 1989

Apr 22, 1988

7/184763

Julius P. Averette - Baker LA

Dynatech Precision Sampling Corporation - Baton Rouge LA

G01N 3506

7386421

A capillary fluid injector, particularly an automated capillary fluid injector, for dispensing very small accurately measured quantities of a fluid into a medium. A capillary opening of adjustable volume is located on the dispensing end of the fluid injector assembly. The capillary opening of (A) an automated fluid injector, or fluid injector assembly can be loaded with a fluid specimen for subsequent injection via the combination of (B) an injector feed assembly comprised of a probe sub-assembly inclusive of a pair of hollow needles which provide a conduit for the pick up of said fluid specimen from a vial and transport of the fluid specimen to the fluid injector, and (C) a magazine for transporting one or more fluid specimen-containing septum sealed vials for pick up by the pair of hollow needles of the probe sub-assembly for delivery to the fluid injector via thrust of the probe through the septum of a vial, pressuring the contents of the vial by delivery of gas from a source through a first of the hollow needles of the probe sub-assembly to produce flow of fluid specimen from the vial into the second of the set of hollow needles for transport through the probe sub-assembly to the fluid injector.