Automatic damper assembly

Patent · Tue Apr 15 04:00:00 EST 1986

OSTI ID:5605011

Kolt, S

An automatic temperature responsive damper assembly is described for use within the conduit of a ventilating system designed to exhaust air from a defined space into the atmosphere. The assembly consists of: (a) mounting means for mounting the damper assembly within the conduit; (b) at least one vane rotatably mounted on the mounting means, the vane being rotatable between a normally closed position wherein the vane substantially reduces the passage of air flow through the conduit and open position wherein the vane increases the air flow through the conduit, the vane having; (i) a pivotal axis disposed transverse to the axis of the conduit, (ii) a surface area including a larger first portion and a smaller second portion, the larger first portion extending beyond one side of the pivotal axis for biasing the vane to a closed position, the second portion extending beyond the other side of the pivotal axis, the second portion being adapted to cooperate with a first portion of a complementary vane to substantially reduce the air flow through the conduit, and (iii) an air flow path provided in the first vane portion for permitting a prescribed amount of the air to flow through the conduit when the vane is in the normally closed position, and (c) means for rotating the vane towards the open position when the temperature of the air in the defined space reached a predetermined level.

• Assignee: NOV; EDB-86-108847
• Patent Number(s): US 4582250
• OSTI ID: 5605011
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
AIR FLOW
BUILDINGS
CONTROL EQUIPMENT
DRAFT CONTROL SYSTEMS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
MACHINE PARTS
MECHANICAL TRANSMISSIONS
MOTION
POSITIONING
ROTATION
SURFACE AREA
SURFACE PROPERTIES
TEMPERATURE EFFECTS
VANES
VENTILATION SYSTEMS