Apparatus for varying the air quantity in air distribution chambers

• US 3,254,830 A
• Filed: 03/18/1964
• Issued: 06/07/1966
• Est. Priority Date: 03/19/1963
• Status: Expired due to Term

• Current Assignee: Werner Wallin Sven
• Original Assignee: Werner Wallin Sven
• Inventors: WERNER WALLIN SVEN
• Application Number:
  US04/353,032
• Time in Patent Office: 811 Days
• US Class Current: 415/61
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 13/06 Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
• CPC Class Codes: F24F 13/1426 characterised by actuating means
• CPC Class Codes: F24F 2013/1473 with cams or levers
• CPC Class Codes: F24F 7/007 with forced flow using ducting systems F24F7/06
• CPC Class Codes: F24F 7/06 with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
• CPC Class Codes: F24F 7/065 fan combined with single duct; mounting arrangements of a fan in a duct
• CPC Class Codes: F26B 21/12 Velocity of flow; Quantity of flow , e.g. by varying fan speed, by modifying cross flow area F26B21/004 takes precedence; changing air flow pattern F26B21/022

Claims

1. APPARATUS FOR VARYING THE QUANTITY OF GASEOUS MEDIUM SUPPLIED INTO A DISTRIBUTION CHAMBER, SAID DISTRIBUTION CHAMBER INCLUDING A PLURALITY OF FANS OPERATING IN PARALLEL, SAID FANS ADAPTED FOR CONNECTION AND DISCONNECTION INDIVIDUALLY AND EACH HAVING AT LEAST A PAIR OF SUBSTANTIALLY VERTICALLY ORIENTED DAMPERS MOUNTED IN THE TERMINAL OPEN END OF SAID FAN, EACH OF SAID DAMPERS HAVING VERTICALLY ORIENTED SWINGING AXES, SAID AXES BEING OFFSET WHEREBY DISCONNECTION OF AT LEAST ONE OF SAID FANS CAUSES SAID DAMPSERS TO SUBSTANTIALLY CLOSE OFF THE OUTLET OF SAID ONE FAN AUTOMATICALLY, THEREBY IMPEDING REVERSE FLOW IN SAID FAN, SAID DAMPERS BEING OF A FLAP CONFIGURATION AND INTER-CONNECTED BY MEANS OF A COUPLING ROD SECURED TO SAID DAMPERS AT DIFFERING DISTANCES FROM SAID SWING AXES WHEREIN SAID DAMPERS IN THEIR OPEN POSITION DEFINE A FLOW PATH OF INCREASING CROSS-SECTIONAL AREA FROM THE SWINGING AXES OUTWARDLY, THEREBY CAUSING THE FLOW OF GASEOUS MEDIUM TO EXPAND AS IT TRAVERSES THROUGH THE DAMPERS.