Positive stirring consistometer cup and method of using the same
First Claim
1. A positive stirring consistometer cup, comprising:
- a container having an interior surface bounding a hollow region defined in said container;
a wall blade member having a support web and a plurality of spaced first protuberances extending from said web, said member removably disposed in said container so that a surface of said web lies adjacent said interior surface of said container;
a split sleeve assembly removably retained within said container adjacent said interior surface, said split sleeve assembly having two end surfaces engaging opposite sides of said web;
a paddle having a plurality of spaced second protuberances extending therefrom so that said second protuberances pass through the spaces between said first protuberances of said wall blade member when said wall blade member rotates relative to said paddle; and
retainer means for releasably retaining said paddle, said wall blade member and said split sleeve assembly in said container.
2 Assignments
0 Petitions
Accused Products
Abstract
A positive stirring consistometer cup includes a pair of wall blade members having radially inwardly extending blades which cooperate with radially outwardly extending blades of a paddle to uniformly apply shear throughout a substance to be tested. A split sleeve assembly eliminates an outer dead space, and an enlarged spacer member mounted on the shaft of the paddle eliminates an inner dead space, thereby enhancing the uniformity of the shear throughout the substance. A centralizing assembly centers the stationary paddle while causing a minimum of friction and wear to occur on the shaft of the paddle. In a method of using the positive stirring consistometer cup, the blades of the wall blade members and of the paddle stop in substantially aligned, coplanar relationship to facilitate cleaning of the elements after a test is concluded.
57 Citations
17 Claims
-
1. A positive stirring consistometer cup, comprising:
-
a container having an interior surface bounding a hollow region defined in said container; a wall blade member having a support web and a plurality of spaced first protuberances extending from said web, said member removably disposed in said container so that a surface of said web lies adjacent said interior surface of said container; a split sleeve assembly removably retained within said container adjacent said interior surface, said split sleeve assembly having two end surfaces engaging opposite sides of said web; a paddle having a plurality of spaced second protuberances extending therefrom so that said second protuberances pass through the spaces between said first protuberances of said wall blade member when said wall blade member rotates relative to said paddle; and retainer means for releasably retaining said paddle, said wall blade member and said split sleeve assembly in said container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A positive stirring consistometer cup, comprising:
-
a container; stirring means, disposed in said container, for applying a shear force to a substance received in said container, said stirring means including a paddle having a shaft and further including a pair of vertical wall blade members disposed in said container in cooperating relationship with said paddle so that a shear force is applied uniformly across the substance received in said container; retainer means for retaining said stirring means in said container; and a pair of sleeve members disposed circumferentially around the interior of said container on opposite sides of said wall blade members. - View Dependent Claims (12)
-
-
13. A method of handling a substance which hardens in a consistometer, comprising:
-
assembling a positive stirring consistometer cup so that blades of a paddle therein interact with a pair of wall blade members therein to apply shear across the substance; flowing the substance into the assembled cup; testing the substance, including rotating said wall blade members relative to said paddle; stopping the relative rotation of the wall blade members and the paddle so that the wall blade members and the paddle are substantially aligned in response to at least a portion of the substance hardening; withdrawing the hardened substance from the cup simultaneously with the substantially aligned wall blade members and paddle; and removing the hardened substance from the substantially aligned wall blade members and paddle. - View Dependent Claims (14, 15, 16, 17)
-
Specification