Detector for over-pressure inside a pipe and a pump fitted with

Details Detector for over-pressure inside a pipe and a pump fitted with Detector for over-pressure inside a pipe and a pump fitted with

1991-07-02

1993-08-10

Ng, Jin F.

Communications: electrical

Condition responsive indicating system

Specific condition

340603, 200 81R, 200 82R, 137557, G08B 2100

Patent

active

052353249

ABSTRACT:
The invention concerns a simple, inexpensive and small detector, particularly for use in the medical pumps, for detecting over-pressure in a pipe (1) and setting off an alarm when an over-pressure is detected. The detector for detecting over-pressure in the pipe (1) along which a fluid (3) flows may comprise a T junction (5) for deriving a fraction of the flowing fluid (3) from the pipe (1); at least one tube (7) wherein there is fitted at least one obturating member (9); and an assembly for detecting the displacement of the obturating member (9) in the tube (7) and for generating a signal in response to detecting displacement of the obturating member (9).

REFERENCES:
patent: 3939316 (1976-02-01), Stropkay
patent: 4363020 (1982-12-01), Venena
International Publication No. WO 86/07266 corresponding to International Application No. PCT/GB86/00318 filed Jun. 5, 1986.

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