Specimen grip with remote actuation

Details Specimen grip with remote actuation Specimen grip with remote actuation

1991-02-04

1992-03-17

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specimen clamp, holder, or support

G01N 304

Patent

active

050957570

ABSTRACT:
A specimen grip for a test specimen that has an actuator for operating the grip remotely mounted and coupled to the grip through a tubular housing which provides for temperature isolation between the grip and the actuator. The grip is specifically adapted to be used in environmental chambers where the grip must operate in either high or low temperatures which can have an effect on the hydraulic actuator used in the grip and connected devices, such as load sensors. By maintaining the actuator on the exterior of the environmental chamber by having a pair of modules that are connected by a sectional connector, a grip can be installed through small ports in the environmental chamber. Once installed, the assembly permits viable operation because the actuator is temperature isolated from the chamber.

REFERENCES:
patent: 3224259 (1965-12-01), DeNicola
patent: 4537080 (1985-08-01), Christiansen
Sketch of Instron grip with connecting sleeve having a flange.
Istron Corporation single page brochure, bearing number 15, on Modular Actuators, publication date is unknown.

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