Air diffuser

Details Air diffuser Air diffuser

2005-08-30

2005-08-30

Tapolcai, William E. (Department: 3744)

Automatic temperature and humidity regulation

Ventilator type

Mechanical linkage actuated

C236S09100C, C454S258000

Reexamination Certificate

active

06935571

ABSTRACT:
A diffuser comprising a casing (10), a first temperature sensitive element (32) for sensing room temperature variations and including a body and a piston which move relatively to one another in response to temperature variations, a second temperature sensitive element (38), an airflow control structure including a damper blade (72) having a first position in which airflow is restricted and a second position in which a greater air flow is permitted, and an actuator (18) for displacing the blade (72) between said first and second positions in response to room temperature variations, the actuator (18) including a cam follower (56) which is displaced by the first element (32) as the piston and body of the first element (32) move relatively to one another with room temperature variations, and a spindle (36) connecting the cam (56) to the second element (38).

REFERENCES:
patent: 5647532 (1997-07-01), De Villiers et al.
patent: 5860592 (1999-01-01), Dozier et al.
patent: 6176435 (2001-01-01), Nielsen
patent: 6254010 (2001-07-01), De Villiers
patent: 6702187 (2004-03-01), van der Merwe
patent: 2003/0146291 (2003-08-01), Hunka

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