04291832 is referenced by 10 patents and cites 8 patents.

A variable air flow volume conditioned air distribution system of the kind having an air flow duct for supplying conditioned air to a room and a valve in the duct for regulating the volume of air flowing through the duct has a controller which senses the flow velocity in the duct and the room temperature in the room.

The controller combines a temperature signal with a flow velocity signal through a velocity spring. A temperature change resets the flow velocity set point and produces a corresponding change in the volume flow through the duct.

The controller includes an adjustable bias for the velocity spring for varying the rate of the velocity spring from a low spring rate for control at a low maximum permitted flow velocity in the duct to a higher spring rate for control at a higher permitted maximum flow velocity flow in the duct and vice versa.

Title
System powered reset velocity controller
Application Number
6/36823
Publication Number
4291832
Application Date
May 7, 1979
Publication Date
September 29, 1981
Inventor
Dalny Travaglio
Kensington
CA, US
John C Morris
Castro Valley
CA, US
Le Royce S Ginn
San Leandro
CA, US
Le Roy D Ginn
San Leandro
CA, US
Agent
Donald C Feix
Assignee
Universal Pneumatic Controls
CA, US
IPC
F24F 7/06
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