Automatic temperature and humidity regulation – Ventilator type – Mechanical linkage actuated
Patent
1997-09-18
1999-11-16
Tapoicai, William E.
Automatic temperature and humidity regulation
Ventilator type
Mechanical linkage actuated
454258, 454335, G05D 2308
Patent
active
059841966
ABSTRACT:
An air vent that automatically opens and closes in response to changes in the ambient air temperature. The air vent includes a housing, a louver frame mounted to the housing and a series of vent louvers pivotally mounted to the frame. The louver frame includes a cam member for automatically pivoting the louvers between an open position and a closed position in response to ambient air temperature changes. The cam member includes a spring fixedly mounted at one end to the housing and mounted at the other end to a camming bar, which is mounted to the louvers. This spring is formed of two different types of metals which react to changes in the ambient air temperature. More specifically, the metals are chosen so that the spring expands as the temperature increases to rotate the cam bar in one direction and incrementally open the louvers, and contracts as the temperature decreases to rotate the cam bar in the reverse direction and incrementally close the louvers. The camming bar is mounted to end bars which are pivotally attached along opposing ends of the louvers.
REFERENCES:
patent: 2187767 (1940-01-01), Akers
patent: 3436016 (1969-04-01), Edwards
patent: 3528606 (1970-09-01), Witten
patent: 3715967 (1973-02-01), Field
patent: 3732800 (1973-05-01), Goettel
patent: 3996952 (1976-12-01), Root
patent: 4175480 (1979-11-01), Beam, Jr. et al.
patent: 4208010 (1980-06-01), Beam, Jr. et al.
patent: 4231514 (1980-11-01), McSwain
patent: 4243175 (1981-01-01), McSwain
patent: 4251024 (1981-02-01), Feinberg
patent: 4290554 (1981-09-01), Hensley
patent: 4328927 (1982-05-01), McSwain
patent: 4493456 (1985-01-01), Sarazen, Jr. et al.
patent: 4497362 (1985-02-01), Teague, Jr.
patent: 4699045 (1987-10-01), Hensley
patent: 4738191 (1988-04-01), Porter
patent: 4829882 (1989-05-01), Jackson
patent: 4915023 (1990-04-01), Porter
patent: 4962882 (1990-10-01), Sarazen, Jr. et al.
patent: 5158260 (1992-10-01), LeBlanc et al.
patent: 5441451 (1995-08-01), Jeung
patent: 5449143 (1995-09-01), Hur
patent: 5575703 (1996-11-01), Stearns
Franks James
Godsey Edward L.
LandOfFree
Thermal rotary vent does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal rotary vent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal rotary vent will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1313049