Throttling device for pipe conduits

Details Throttling device for pipe conduits Throttling device for pipe conduits

1980-07-28

1982-06-01

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

251146, 251148, 251305, 251286, F16K 5100, F16L 5510

Patent

active

043322719

ABSTRACT:
A throttling device is located in a venting pipe or in a pipe section such as a flue gas pipe or conduit arranged between a boiler and a flue or chimney. The flap is held in a pipe section for removal out of the respective pipe either by tilting or by pulling the flap out. For this purpose the pipe section has a slot which is about semicircular and which, in operation, is covered by a ring section or sector. The throttle flap may be pulled out of the pipe section together with the ring section and with its adjustment drive whereby cleaning of the pipe or conduit is substantially facilitated. Heat losses through the flue are avoided when the throttle flap is closed.

REFERENCES:
patent: 1302891 (1919-05-01), Balthasar
patent: 2693975 (1954-11-01), Smith
patent: 3058483 (1962-10-01), Douglass et al.
patent: 3424430 (1969-01-01), Hoelsch
patent: 3436166 (1969-04-01), Erickson
patent: 3520333 (1979-07-01), De Young, Jr. et al.
patent: 3860038 (1975-01-01), Forni
patent: 3981482 (1976-09-01), Callahan, Jr. et al.
patent: 4079746 (1978-03-01), Killian

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