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US 12,130,266 B2Granted
Versatile tube-free jet for gas chromatography detector having a conical inlet skirt
AssigneeAgilent Technologies, Inc.
InventorsEdward D. Mroz, Heng He
Life of this patent
Estimating the term…
Abstract
A jet injector for a GC that includes a body, a skirt extending away from the body; and a bore that extends through the skirt and the body to create an inlet and an outlet for the jet injector.
Claims19
A jet injector for gas chromatography (GC) comprising:
- a body including an outlet of the jet injector;
- a skirt extending away from the body and including a conical area that starts from the body and ends at an inlet of the jet injector, wherein the skirt includes a conical outer profile that is tapered outwardly towards the inlet;
- and
- a bore that extends through the skirt and the body to:
- create the inlet and the outlet for the jet injector;
- and
- receive a capillary that passes through the inlet into the body,
- wherein the jet injector includes a single inlet and a single outlet,
- wherein an outer surface of at least one of the body or the skirt includes threads for a specified axial distance relative to a central axis of the jet injector,
- wherein a portion of the bore corresponding to the skirt substantially includes a variable diameter and a remaining portion of the bore corresponding to the body substantially includes a constant diameter,
- wherein a transition from the constant diameter to the variable diameter occurs within the specified axial distance relative to the central axis, and
- wherein a wall that forms the skirt tapers from a larger thickness generally adjacent the transition to a smaller thickness generally adjacent the inlet of the jet injector.
9 more elements
A jet injector for gas chromatography (GC) comprising:
- a body having an orifice and including an outlet of the jet injector, wherein the orifice includes a predetermined size;
- a skirt extending away from the body and including a conical area that starts from the body and ends at an inlet of the jet injector, wherein the skirt includes a conical outer profile that is tapered outwardly towards the inlet;
- and
- a bore that extends through the skirt and the body to:
- create the inlet and the outlet for the jet injector;
- and
- receive a capillary that passes through the inlet into the body,
- wherein the jet injector includes a single inlet and a single outlet,
- wherein an outer surface of at least one of the body or the skirt includes threads for a specified axial distance relative to a central axis of the jet injector,
- wherein a portion of the bore corresponding to the skirt substantially includes a variable diameter and a remaining portion of the bore corresponding to the body substantially includes a constant diameter,
- wherein a transition from the constant diameter to the variable diameter occurs within the specified axial distance relative to the central axis, and
- wherein a wall that forms the skirt tapers from a larger thickness generally adjacent the transition to a smaller thickness generally adjacent the inlet of the jet injector.
9 more elements
A jet injector for gas chromatography (GC) comprising:
- a body;
- a skirt extending away from the body and including a conical area that starts from the body and ends at an inlet of the jet injector, wherein the skirt includes a conical outer profile that is tapered outwardly towards the inlet of the jet injector;
- and
- a bore that extends through the skirt and the body to:
- create the inlet and an outlet for the jet injector;
- and
- receive a capillary that passes through the inlet into the body,
- wherein the jet injector includes a single inlet and a single outlet,
- wherein an outer surface of at least one of the body or the skirt includes threads for a specified axial distance relative to a central axis of the jet injector,
- wherein a portion of the bore corresponding to the skirt substantially includes a variable diameter and a remaining portion of the bore corresponding to the body substantially includes a constant diameter,
- wherein a transition from the constant diameter to the variable diameter occurs within the specified axial distance relative to the central axis,
- wherein an outer wall of the skirt includes a first portion having a constant slope relative to the central axis and a second portion having a different slope relative to the first portion, and
- wherein an angle formed between the second portion and the central axis is smaller than the angle formed between the first portion and the central axis.
10 more elements
Dependencies are inferred from the claim text.