Non-invasive measurement system

Details Non-invasive measurement system Non-invasive measurement system

2007-10-09

2007-10-09

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Expansible chamber

Reexamination Certificate

active

11311583

ABSTRACT:
A non-invasive piston-cylinder measurement system of a cylinder and a piston mounted for axial movement within the cylinder. The cylinder comprises a non-magnetic cylinder wall. A magnet is mounted within the piston. A plurality of magnetically activated switches, such as read switches, is mounted outside of the non-magnetic cylinder wall so as to be activated by piston movement. The measurement system provides a non-invasive means for measuring fluid extruded from a piston-cylinder extruder.

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patent: 3131561 (1964-05-01), Romanowski
patent: 4351515 (1982-09-01), Yoshida
patent: 4641522 (1987-02-01), Lopresti
patent: 4815318 (1989-03-01), LoPresti
patent: 5392648 (1995-02-01), Robertson
patent: 6239708 (2001-05-01), Young
patent: 6333695 (2001-12-01), Young

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