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US 12,092,486 B2Granted
Flow gauge and flow gauge scale assembly
AssigneeThe ESAB Group, Inc.
InventorRobert Boyer
Life of this patent
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Abstract
A flow gauge scale assembly includes a first scale and a second scale. The first scale is configured to be disposed in a first radial position on a generally cylindrical flow tube through which a ball can move to indicate a flow rate of a flow of gas. The second scale is configured to be disposed in a second radial position that will be at least partially optically misaligned from the first scale when the flow gauge scale assembly is installed in the generally cylindrical flow tube.
Claims18
A flow gauge comprising:
- a generally cylindrical flow tube that extends from a first end to a second end, the first end being fluidly coupled to a flow path through a regulator or flowmeter;
- a ball that is movable within the generally cylindrical flow tube in response to a flow of gas moving along the flow path;
- a first scale disposed on the generally cylindrical flow tube, wherein the first scale comprises first increments and first flow rate indicia;
- and
- a second scale disposed on the generally cylindrical flow tube, wherein the second scale comprises second increments and second flow rate indicia, the first scale and the second scale are offset with respect to a radial zone of the generally cylindrical flow tube such that a first axis extends through the first increments of the first scale, a centroid of a cross-section of the generally cylindrical flow tube taken along a plane defined by radii of the generally cylindrical flow tube, and the radial zone, the radial zone being devoid of any markings and being transparent, and the first scale and the second scale are positioned with respect to one another such that a second axis extends through the first flow rate indicia of the first scale, the centroid of the cross-section of the generally cylindrical flow tube, and the second flow rate indicia of the second scale,
- wherein the first flow rate indicia of the first scale are identical to the second flow rate indicia of the second scale.
3 more elements
A flow gauge scale assembly comprising:
- a first scale disposed in a first radial position on a generally cylindrical flow tube through which a ball can move to indicate a flow rate of a flow of gas, wherein the first scale comprises first increments and first flow rate indicia;
- and
- a second scale disposed in a second radial position that will be at least partially optically misaligned from the first scale in an installed configuration of the flow gauge scale assembly in the generally cylindrical flow tube, wherein the second scale comprises second increments and second flow rate indicia, the first scale and the second scale are offset with respect to a radial zone of the generally cylindrical flow tube such that a first axis extends through the first increments of the first scale, a center of a cross-section of the generally cylindrical flow tube taken along a plane defined by radii of the generally cylindrical flow tube, and the radial zone, wherein the radial zone lacks any markings and is transparent, and the first scale and the second scale are positioned with respect to one another such that a second axis extends between the first increments and the first flow rate indicia of the first scale, through the center of the cross-section of the generally cylindrical flow tube, and through the second flow rate indicia of the second scale.
A flow gauge comprising:
- a flow tube through which a gas can flow;
- a first scale disposed in a first radial position on the flow tube, wherein the first scale comprises first increments and first flow rate indicia to indicate a first gas flow rate;
- and
- a second scale disposed in a second radial position on the flow tube, wherein the second scale comprises second increments and second flow rate indicia to indicate a second gas flow rate, the first scale and the second scale are offset with respect to a radial zone of the flow tube such that a first axis extends through the first increments of the first scale, a center of a cross-section of the flow tube taken along a plane defined by radii of the flow tube, and the radial zone, the radial zone lacking any markings and being transparent, the first scale and the second scale are positioned with respect to one another such that a second axis extends through the first flow rate indicia of the first scale, the center of the cross-section of the flow tube, and the second flow rate indicia of the second scale, and the first scale and the second scale are positioned with respect to one another such that a third axis extends between the first increments and the first flow rate indicia of the first scale, through the center of the cross-section of the flow tube, and through the second flow rate indicia of the second scale.
1 more element
Dependencies are inferred from the claim text.