Automatic servo-controlled valve with high-speed opening

Details Automatic servo-controlled valve with high-speed opening Automatic servo-controlled valve with high-speed opening

1987-07-09

1988-12-06

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

137467, 137521, 137587, 220315, 220324, 220326, 220335, B65D 5116

Patent

active

047889993

ABSTRACT:
The object of the invention is an automatic servo-controlled valve with high speed opening wherein the shutter is a hinged cover (20). Suitable locking means (30, 50) keep the cover (20) in a locked position up to the time when the pressure difference on the two faces of the cover exceeds a pre-determined minimum level. After the said locking means have moved to an open position, an actuator (40) operates the opening of the said cover at high speed (FIG. 1).

REFERENCES:
patent: 1233028 (1917-07-01), Clifton et al.
patent: 1346887 (1920-07-01), Heald
patent: 2045518 (1936-06-01), Chatfield
patent: 2745627 (1956-05-01), Winfree
patent: 3113172 (1963-12-01), Barr
patent: 4109819 (1978-08-01), Kushman et al.
patent: 4263935 (1981-04-01), Regnier
patent: 4585139 (1986-04-01), Bronson et al.

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