Fluid handling – Systems – With flow control means for branched passages
Patent
1991-08-19
1992-11-03
Fox, John C.
Fluid handling
Systems
With flow control means for branched passages
251248, 62201, B29C 4572
Patent
active
051599570
ABSTRACT:
The supply and return passages of the apparatus are defined by fittings, each of which defines also a valve passage, which contains a rotary valve for controlling the flow rate in a cooling circuit of the injection molding machine. A valve actuator is detachably mounted on each of said fittings and is operatively connected to said rotary valve. Each of said valve actuators is selectively constituted by a gearmotor housing, which contains a gearmotor for an automatic control of said rotary valve, or by an actuator housing of a manual drive. At least one of said fittings is provided with detachably mounted monitoring means, which comprise a temperature detector and/or a flow-sensing tube and communicate at one end through a tubular port of said fitting with said return passage section thereof and at the other end are provided with a hose coupling for connection to one of said cooling circuits.
REFERENCES:
patent: 3974857 (1976-08-01), Hehl
patent: 4768559 (1988-09-01), Hehl
patent: 4815693 (1989-03-01), James et al.
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