Patent ID: 9404848
Filing Date: 2016-08-02
CPC Classification: G01M,G01N

Claim Text:
1. An apparatus for testing adhesion of a seal to a surface, the apparatus comprising: a first member that comprises a first end, a second end, and a cavity therein, wherein the first end of the first member comprises a first aperture therethrough and in communication with the cavity, wherein the second end of the first member includes a second aperture therethrough and in communication with the cavity, wherein the cavity comprises a narrow cavity portion toward the first end and a wide cavity portion toward the second end with a lip between the narrow and wide cavity portions; a second member movable relative to the first member, wherein the second member comprises a plunger that comprises a wide portion, a narrow portion arranged toward the first end of the first member relative to the wide portion of the plunger, and an indicator portion arranged toward the second end of the first member relative to the wide portion of the plunger, wherein the wide portion is arranged in the wide cavity portion of the cavity in the first member, and wherein the second member further comprises a seal-contact member extending from the second member through the first aperture in the first member; means for biasing the first member and the second member relative to each other with a biasing force; and an indicator on the indicator portion of the plunger, wherein the indicator extends out of the second aperture in the second end of the first member when the second member is displaced relative to the first member as the seal-contact member of the second member is urged against at least one of the seal or the surface, wherein different extensions of the indicator out of the second aperture correspond to different states of the indicator, which represent different levels of friction between the seal-contact member of the second member and the at least one of the seal or the surface.