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Class 73/54.29 - Comparator


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the determination is made by comparing
No. of patents: 7
Last issue date: 02/25/2003


NumberTitleIssue Date
6523397Curing characteristics measuring apparatus and measuring method
A curing characteristics measuring apparatus in which a sample chamber having a fixed surface and a rotation-vibrating drive surface is charged with a sample having a viscoelasticity, a torsional vibration is applied to the sample through the drive surfac...
02/25/2003
5704382Method and apparatus for controlling the flow of a liquid, and viscosity measuring method therefor
Method and apparatus for controlling the flow of a liquid from a supply pipe to a receiving device, to assure that only a preselected liquid is permitted to flow to the receiving device, by: feeding a sample quantity of the liquid from the supply pipe to ...
01/06/1998
5627330Leverage insertion assembly
A leverage insertion assembly for inserting and removing an element from a main pipeline in which a fluid is flowing. The leverage device includes a hollow positioning pipe connected to the main pipeline with a gate valve attached to the positioning pipe....
05/06/1997
4559811Consistometer
An improved consistometer which continuously measures the consistency of a stream of material from apparatus manufacturing the material includes a resilient blade rotated in the stream of material and which is rotated about an axis that is parallel to the...
12/24/1985
4044602Consistometer with internal calibration means
A consistometer continuously measures the consistency of a stream of material flowing through it which is provided by apparatus manufacturing the material. The consistometer includes a resilient member located in the stream of material and a reference mem...
08/30/1977
4044603Consistometer with automatic shut-down
A consistometer continuously measures the consistency of a stream of material flowing through it which is provided by apparatus manufacturing the material. The consistometer includes a resilient member located in the stream of material and a reference mem...
08/30/1977
4043183Consistometer with sensors failure and sensors misalignment indicating means
A consistometer continuously measures the consistency of a stream of material flowing through it. The consistometer includes a resilient member located in the stream of material and a reference member located outside of the stream of material and both mem...
08/23/1977
 
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