Flow cell
First Claim
1. A flow cell for location intermediate a light source and a photosensitive device for light measurement of a fluid therein in a light path, comprising:
- a body member having an open-ended bore therethrough constituting a sight passageway to lie along a portion of the length of the light path of a colorimeter;
p1 fluid inlet means transversely connected to said open-ended bore intermediate its ends;
fluid outlet means transversely connected to said open-ended bore intermediate its ends;
said fluid inlet means and said fluid outlet means being longitudinal spaced a predetermined distance along the axis of the open-ended bore of said body member;
a pair of fluid seals in the respective open ends of said bores and closing them, each of said seals being constituted by a light transmitting rod;
said fluid inlet means and said fluid outlet means opening into said bore adjacent the respective internal ends of said light transmitting rods to define the path for fluid flowing through said sight passageway;
the internal end surface of said light transmitting rods have a central portion that is flat and substantially perpendicular to the axis of the bore of said tubular member to provide optimal transmission of light and a curved surface adjacent their perimeter that blends with the interior surface of said bore where said respective surfaces meet much in the manner of the meniscus curved surface that is formed by a liquid in a vessel due to surface tension of the liquid with the side walls of the vessel, the internal ends of said light transmitting rods being fused to the interior walls of said bore; and
debubbler means comprising a tubular portion having a first aperture in its bottom surface, a tubular neck having its top end connected to said first aperture and its bottom end connected to said fluid inlet means.
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Accused Products
Abstract
A flow cell for location intermediate a light source and a photosensitive device for light measurement of a fluid therein in a light path. The flow cell has an elongated tubular body member, a debubbler unit, and a tubular fluid outlet tower. The body member has an open-ended bore therethrough constituting a sight passageway. A pair of light transmitting quartz rods are positioned in the respective open ends of the bore to close them. One end of the debubbler unit functions as a fluid inlet conduit and a tubular neck portion extends from the bottom of the debubbler unit and is transversely connected to the open-ended bore of the body member intermediate its ends. A tubular fluid outlet tower has its bottom end transversely connected to the open-ended bore of the body member intermediate its ends. The bottom ends of the debubbler unit and the fluid outlet tower connect to the bore of the body member adjacent the respective internal ends of the light transmitting rods to define the path for fluid flowing through the sight passageway. The internal end surface of the light transmitting rods are flat in the central portion and form a curved surface adjacent their perimeter with the interior surface of the bore of the body member.
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Citations
6 Claims
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1. A flow cell for location intermediate a light source and a photosensitive device for light measurement of a fluid therein in a light path, comprising:
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a body member having an open-ended bore therethrough constituting a sight passageway to lie along a portion of the length of the light path of a colorimeter;
p1 fluid inlet means transversely connected to said open-ended bore intermediate its ends;fluid outlet means transversely connected to said open-ended bore intermediate its ends; said fluid inlet means and said fluid outlet means being longitudinal spaced a predetermined distance along the axis of the open-ended bore of said body member; a pair of fluid seals in the respective open ends of said bores and closing them, each of said seals being constituted by a light transmitting rod; said fluid inlet means and said fluid outlet means opening into said bore adjacent the respective internal ends of said light transmitting rods to define the path for fluid flowing through said sight passageway; the internal end surface of said light transmitting rods have a central portion that is flat and substantially perpendicular to the axis of the bore of said tubular member to provide optimal transmission of light and a curved surface adjacent their perimeter that blends with the interior surface of said bore where said respective surfaces meet much in the manner of the meniscus curved surface that is formed by a liquid in a vessel due to surface tension of the liquid with the side walls of the vessel, the internal ends of said light transmitting rods being fused to the interior walls of said bore; and
debubbler means comprising a tubular portion having a first aperture in its bottom surface, a tubular neck having its top end connected to said first aperture and its bottom end connected to said fluid inlet means. - View Dependent Claims (2, 3, 5, 6)
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4. A flow cell as recited in claim 4 wherein said debubbler means is formed integrally with said body member.
Specification