Abstract: Aa liquid animal attractant dispensing system for dispensing liquid animal attractants into the air that included a mechanism for providing a steady replenishment of attractant to the dispersing element, such as a wick, and which further included an assembly which allowed the dispersing element to be retracted into a storage container even while saturated with liquid attractant in a manner such that the liquid attract is recovered for later use.

Abstract: 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.

Abstract: An automatic fluid injector, useful for the injection of preselected small, accurately measured quantities of fluid specimens into, e.g., an analytical instrument, particularly a purge and trap analyzer. The injector includes generally a syringe, or syringe assembly, inclusive of a barrel into which a fluid specimen can be loaded, a plunger for the displacement of the fluid specimen from said barrel via the dispensing end thereof into the analyzer, and a probe integral therewith for the pick up of the fluid specimen for filling the barrel of the syringe. The combination further includes a magazine for transporting one or more fluid specimen-containing septum sealed vials for pick up of a fluid specimen therefrom by the probe portion of the syringe assembly for delivery to the barrel of the syringe.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An apparatus for sampling and injecting measured liquid samples into the septum inlet of an analytical instrument or the like.

Abstract: 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.

Abstract: 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.