Smoke extraction system

• US 6,776,708 B1
• Filed: 01/27/2003
• Issued: 08/17/2004
• Est. Priority Date: 01/27/2003
• Status: Expired due to Fees

• Current Assignee: Bill Nicks, Rick Daoutis
• Original Assignee: Bill Nicks, Rick Daoutis
• Inventors: Daoutis, Rick, Nicks, Bill
• Primary Examiner(s): Joyce, Harold
• Application Number:
  US10/351,865
• Time in Patent Office: 568 Days
• Field of Search: 454/228, 454/229, 454/236, 454/342
• US Class Current: 454/229
• CPC Class Codes: F24F 11/34 by opening air passages
• CPC Class Codes: F24F 7/06 with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Abstract

The invention discloses a smoke extraction system 10 provided with an infrared smoke detector 16, infrared thermostat 18, A/C sensor 38 and transition door 20. When the smoke detector 16 detects smoke 32 it sends a signal to the thermostat 18 changing the setting to exhaust mode, at the same time the signal is received by the A/C sensor 38 electronics of the transition door 20, which opens the transition door allowing smoke to be vented to the outside. When the air conditioning unit engages the vent mode, the air is vented through the transition door 20 thereby creating a draft that will remove the smoke 32 and vent it outside. The extraction system can be adapted to a central air conditioning system 12.

Claims

1. An air conditioning system for providing a smoke extraction system, the air conditioning system being connected to a duct system of a building, the duct system having an air supply duct and an air return duct, comprising:

a) a smoke detector for detecting the presence of smoke and transmitting a smoke signal;

b) a thermostat for receiving said smoke signal from said smoke detector and responsively engaging a venting system of said air conditioning system;

c) said venting system including a motorized vent door which is thereby triggered to open upon receiving a signal from said thermostat, said motorized vent door being a louvered door movable in a track between a first position closing off an air supply duct opening to the outside and second position at right angles to the first position unblocking said air supply duct opening to the outside; and

,

d) said motorized vent door being disposed in an enclosure of an air conditioning unit in said air conditioning system whereby air from the air conditioning system is vented to the outside thereby creating a draft in an air return duct so that smoke is removed from an interior of the building.

2. The apparatus of claim 1, further comprising a microprocessor to permit the operation of a plurality of room air vents to be coordinated with the operation of a plurality of smoke detectors whereby the room air vents near a smoke source are opened while the room vents removed from a smoke source are closed in order to accelerate the removal of smoke from the interior of a building.

3. An apparatus for a smoke extraction system for attachment to an existing air conditioning system of a building, the air conditioning system having an air supply duct and an air return duct, comprising:

a) a smoke detector whereby the presence of smoke can be detected and a signal can be thereafter transmitted to a thermostat;

b) said thermostat receiving said signal and thereafter transmitting another signal to an air conditioning sensor; and

c) said air conditioning sensor thereupon triggering the opening of a motorized vent door in an enclosure between an air conditioner in said air conditioning system and said air supply duct upon receiving a signal from said thermostat, thereby creating a draft in the return duct so that smoke is removed from an interior of the building.

4. The apparatus of claim 3, comprising a microprocessor to permit the operation of a plurality of room air vents to be coordinated with the operation of a plurality of smoke detectors whereby the room air vents near a smoke source are opened while the room vents removed from a smoke source are closed in order to accelerate the removal of smoke from the interior of a building.