Device for pneumatic conveying of bulk material, especially...

Details Device for pneumatic conveying of bulk material, especially... Device for pneumatic conveying of bulk material, especially...

2005-10-18

2005-10-18

Dillon, Jr., Joe (Department: 3651)

Conveyors: fluid current

With load braking or retarding means

C406S192000

Reexamination Certificate

active

06955506

ABSTRACT:
A device for pneumatically conveying bulk material has at least one flow limiter arranged in a conveying airstream. The flow limiter has a housing and at least one control member arranged in the housing. The control member controls a flow velocity of the conveying airstream as a function of a dynamic pressure differential. The position of the at least one control member in the housing is determined by an equilibrium between a restoring force acting on the at least one control member and an opposed force oriented in a direction opposite to the restoring force. The opposed force is caused by the dynamic pressure differential and acts on the at least one control member.

REFERENCES:
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patent: 1952859 (1934-03-01), Hampton et al.
patent: 3599832 (1971-08-01), Smith
patent: 4162784 (1979-07-01), Legille et al.
patent: 4171853 (1979-10-01), Cleaver et al.
patent: 4373838 (1983-02-01), Foreman et al.
patent: 4473326 (1984-09-01), Oetiker
patent: 5615701 (1997-04-01), Yamabe et al.

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