Automated sample tester

• US 6,536,289 B2
• Filed: 08/17/2001
• Issued: 03/25/2003
• Est. Priority Date: 08/17/2001
• Status: Expired due to Fees

• Current Assignee: Goodyear Tire & Rubber Company
• Original Assignee: Goodyear Tire & Rubber Company
• Inventors: Gschnell, Cristina Marie, Borowczak, Marc
• Primary Examiner(s): Williams, Hezron
• Assistant Examiner(s): GARBER, CHARLES D
• Application Number:
  US09/932,179
• Publication Number:
  US 20030033896A1
• Time in Patent Office: 585 Days
• Field of Search: 738/66, 738/09, 738/19, 738/56, 738/55
• US Class Current: 73/809
• CPC Class Codes: G01N 2203/0066 Propagation of crack
• CPC Class Codes: G01N 2203/0222 Temperature
• CPC Class Codes: G01N 2203/0476 in parallel
• CPC Class Codes: G01N 3/32 by applying repeated or pulsating forces
• CPC Class Codes: G01N 33/445 Rubber
• CPC Class Codes: G01N 35/025 having a carousel or turntable for reaction cells or cuvettes

Abstract

An apparatus for testing a plurality of samples comprises a carousel, means for indexing the movement of the carousel, an environmental chamber, and means for positioning the sample for viewing and measuring the results of the testing. The environmental chamber makes possible testing at elevated or reduced temperatures, and testing in a variety of atmospheres. The sample positioning means and the viewing means are automated.

Claims

1. An apparatus for automatically testing multiple samples comprising:

(a) a carousel having a plurality of stations for holding samples to be tested;

(b) sample holding means associated with said carousel, said sample holding mean being adapted to retain samples during static or dynamic testing of the samples and to release said samples when measurements are made;

(c) a vacuum device associated with said carousel for removing a sample from sample holding means;

(d) a measuring device associated with said carousel for evaluating a sample when a sample is withdrawn from the sample holding means by said vacuum device.

2. The apparatus of claim 1 wherein at least the carousel, the sample holding means and vacuum device are contained within an environmental chamber.

3. The apparatus of claim 2 wherein the measuring device is an imaging device outside the environmental chamber.

4. The apparatus of claim 1 wherein the carousel has an upper part and a lower part and the sample holding means has a first portion associated with the upper part of said carousel and a second portion associated with the lower part of said carousel, and the lower part and upper part of said carousel are moveable relative to one another.

5. The apparatus of claim 4 wherein the upper portion and the lower portion of the carousel are mounted on a spindle and have actuating means for advancing the carousel in increments corresponding to sample holding means in said carousel.

6. The apparatus of claim 4 wherein the upper portion and the lower portion of the carousel are actuated to move back and forth relative to each other while sample holding means in the upper portion and lower portion remain aligned.

7. The apparatus of claim 6 which is actuated ten times per second to provide dynamic flexing of rubber samples.

8. The apparatus of claim 2 in which said environmental chamber has means for controlling atmosphere and temperature.

9. The apparatus of claim 1 in which the measuring means is a digital imaging device.

10. A method for automatic testing of a sample comprising the steps of:

(a) providing a carousel with multiple stations for holding samples to be tested;

(b) retaining the samples within the carousel during static or dynamic testing of the samples;

(c) releasing the samples when measurements are made;

(d) withdrawing a sample from the carousel when measurements are made; and

(e) measuring and evaluating the withdrawn sample by means of a measuring device.

11. The method of claim 10, wherein the sample is withdrawn from the carousel by means of a vacuum device associated with the carousel.

12. The method of claim 10, wherein the measuring device comprises an imaging device.

13. The method of claim 10 comprising the further step of enclosing the carousel in an environmental chamber.

14. The method of claim 13 comprising the further step of providing means for controlling the atmosphere within the environmental chamber.

15. The method of claim 10, wherein the retention of the samples within the carousel during static or dynamic testing of the samples and release of the samples when measurements are made is by means of sample holding means contained with the carousel within an environmental chamber.