Rolling ball tack measuring apparatus

Details Rolling ball tack measuring apparatus Rolling ball tack measuring apparatus

2009-11-19

2011-12-06

Caputo, Lisa (Department: 2855)

Measuring and testing

Frictional resistance, coefficient or characteristics

C073S15000R

Reexamination Certificate

active

08069702

ABSTRACT:
A measuring apparatus to measure adhesion of a tape includes a supporting plate slanting related to horizon, and a ball. The tape is attached to the supporting plate with an adhesive surface opposite to the supporting plate. The ball rolls on the tape along the supporting plate. The ball would be held by the tape according to the weight of the ball and the adhesion of the tape, thereby assessing the adhesion. The measuring apparatus further includes a base, a positioning mechanism mounted to the supporting plate, and an angle-adjusting mechanism engaging with the base and the supporting plate and capable of rotating related to the base to adjust a slanting angle of the supporting plate. The positioning mechanism includes a frame to releasably hold and position the ball.

REFERENCES:
patent: 5635623 (1997-06-01), Simon
patent: 974164 (1982-11-01), None
Author: R. A. Roberts, Title: Review of Methods for the Measurement of Tack, Publisher: Pira International-National Physical Laboratory, Edition: Project PAJ1: Failure criteria and their application to Visco-Elastic/Visco-Plastic materials, Report 5, Date: Sep. 1997, pp. 1-11.

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