Richard E Conti

US Patent:

62473565, Jun 19, 2001

Filed:

Mar 30, 1999

Appl. No.:

9/281449

Inventors:

John J. Merck - Medfield MA
Richard Conti - Foxboro MA
Joerg Meissner - Medfield MA
Patrick Micozzi - Acton MA

Assignee:

Instron Corporation - Canton MA

International Classification:

G01N 342

US Classification:

73 82

Abstract:

A hardness tester having a frame and a rotatable turret movably supported on the frame is provided. A plurality of load cells are fixedly mountable on the turret, and a plurality of indenters are fixedly attachable to the load cells, respectively. A user interface selectively provides signals to a motor to move the turret into contact with a test specimen via one of the indenters to thereby apply a load on the test specimen. The indenters are fixed with respect to the turret and do not move in relation to the turret when the turret is brought down to bear on the test specimen. The load cells measure the load applied to the test specimen. A closed loop control system receives load measurement signals from the load cells and controls movement of the turret, preventing the motor from applying load in excess of a predetermined selectable load amount input by a user via the user interface. The invention preferably includes a plurality of indenter adapters, each attached to respective undersides of the load cells. Each indenter adapter includes a slot into which the indenter is fittable, and least one set screw for adjusting a horizontal location of the indenter.

US Patent:

20210247281, Aug 12, 2021

Filed:

Feb 8, 2021

Appl. No.:

17/170170

Inventors:

- Glenview IL, US
Richard Conti - North Attleboro MA, US

International Classification:

G01N 3/10

Abstract:

An example material testing system includes: a pneumatic grip configured to grip a specimen under test based on a supplied pressure; and a processor configured to control the pressure supplied to the pneumatic grip by repeatedly: controlling a fill valve to increase the supplied pressure; allowing the supplied pressure to stabilize after each increase; and adjusting a pressurization time based on comparing an expected pressure increase to an actual pressure increase during the pressurization.