Apparatus and method for measuring pressure changes within press

Details Apparatus and method for measuring pressure changes within press Apparatus and method for measuring pressure changes within press

1991-02-01

1993-02-09

Cosimano, Edward R.

Boots, shoes, and leggings

73717, 36457105, 377 19, G06F 1520

Patent

active

051857090

ABSTRACT:
Apparatus and methods for detecting pressure changes within the chamber of a pressure vessel are disclosed. The apparatus includes a pressure transducer which is gauge-referenced to atmospheric pressure and has bi-directional capability of determining pressure changes above and below atmospheric pressure. The transducer is structured to provide frequency output and is therefore connected directly to a microprocessor. The microprocessor includes structure programmed to compensate for variations in existing ambient atmospheric pressure.

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patent: 4294804 (1981-10-01), Baran
patent: 4301685 (1981-11-01), Guillemot
patent: 4393713 (1983-07-01), Guillemot
patent: 4598381 (1986-07-01), Cucci
patent: 4957007 (1990-09-01), Gray

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