Method and apparatus for balancing an HVAC system

Details Method and apparatus for balancing an HVAC system Method and apparatus for balancing an HVAC system

2007-06-29

2011-12-13

McAllister, Steve (Department: 3749)

Ventilation

Having inlet airway

Including specific air distributor

C454S310000

Reexamination Certificate

active

08075375

ABSTRACT:
A method and apparatus for balancing an HVAC system. The method involves using a plate which is circular in shape and has four inner cut-out portions which are capable of being manually removed by an operating engineer. To reduce flow to a minimum, all four rings are left on the plate. To allow a progressively greater amount of air flow, more rings are removed from the circular plate. Such enables the equalization of the various rooms in an HVAC system without the addition of costly upstream dampers. The circular plate is attached to a duct via four small protruding ear elements.

REFERENCES:
patent: 3063356 (1962-11-01), Fitt
patent: 3087407 (1963-04-01), Averill et al.
patent: 5207615 (1993-05-01), Edmisten

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