# US 4,391,153 A · Segmented fiber sampler

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- Number: US 4,391,153 A
- Document ID: US4391153A
- Status: Granted
- Kind: A
- Application number: 06/337,044
- Filed: 1982-01-04
- Granted: 1983-07-05
- Earliest claimed: 1982-01-04
- Assignees: The United States of America as represented by the United States Department of Agriculture
- Inventors: Robert A. Taylor
- Web page: https://patentgrep.com/patent/US4391153A

## CPC

- G01N 1/04: in the solid state, e.g. by cutting
- G01N 3/04: Chucks
- G01N 33/362: {Material before processing, e.g. bulk cotton or wool}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

An apparatus for sampling staple fibers containing foreign matter is disclosed. A clamping device is provided comprising upper and lower jaws pivoted with respect to each other. The upper jaw is segmented on one end to allow for localized deflection of the individual segments when foreign material is present. On the other end a spring assembly is provided to insure proper clamping pressure during and after the taking of a sample.

## Claims

### Claim 1

An apparatus for sampling staple fibers comprising in combination:
(a) a rigid lower jaw;
(b) an upper jaw juxtaposed to said lower rigid jaw, one end of said upper jaw fabricated into a plurality of segments, said segments capable of deflecting in different amounts to accommodate local differences in fiber density and/or imbedded trash/foreign particles;
(c) means for pivoting said upper jaw in relation to said rigid lower jaw;
(d) a spring assembly located between said upper and lower jaws, said spring assembly also located on the opposite end from the segmented end of said upper jaw to provide clamping pressure during and after the taking of a sample.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein the segmented end of the upper jaw is divided into 10 equal segments.