Flow-thru troffer
AssigneeGuth Lighting Inc.
InventorRyan D. Jones
Life of this patent
Estimating the term…
Abstract
A light fixture for use with a high efficiency particulate air filter is disclosed which includes a peripheral frame, in which a high efficiency particulate air filter is mounted. A plurality of individual lighting elements are positioned in the frame directly beneath the filter in the direction of air flow. The individual lighting elements each include an elongated streamlined housing for receiving an elongated electric light bulb to direct laminar air flow from the filter in a non-turbulent flow pattern around the light bulbs in the housing.
Claims41
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an upper generally semi-cylindrical elongated shield positioned to be directly beneath an air filter/distribution device in the frame and arranged to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath the shield in the direction of air flow;
- and an elongated lens having a generally teardrop shape in transverse cross-section mounted on the shield for enclosing the bulb positioned beneath the shield, whereby air flowing from an air filter/distribution device in the frame flows over and around said shield and lens in a generally laminar flow.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an upper generally semi-cylindrical elongated shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath the shield in the direction of air flow;
- and an elongated cross-section mounted on the shield for enclosing the bulb positioned beneath the shield;
- and a reflector mounted within said shield above said bulb.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it. and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements being located directly below an air filter/distribution device in the frame and being laterally spaced from each other to permit air flow between them, said lighting elements each comprising a separate elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow and means for mounting an elongated light bulb beneath said shield in the direction of air flow whereby air flowing from an air filter/distribution device flows over and around the shield between the lighting elements in a generally laminar air flow.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction form the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath said shield in the direction of air flow, and a reflector mounted within each of said shields;
- each of said reflectors being located above the bulb in the direction of air flow and being generally V-shaped in transverse cross-section an defining an apex, said reflectors being positioned with the apex thereof closer to its associated bulb than the remainder of the reflector.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath said shield in the direction of air flow;
- said semi-cylindrical shields having elongated spaced leg portions which extend to a position partly encompassing the bulb;
- and said leg portions being inclined towards each other and terminate at positions adjacent the surface of a bulb beneath the shield.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath said shield in the direction of air flow and elongated lenses respectively removably mounted on said legs of the shields to encompass a bulb therein, said lenses having a generally teardrop peripheral shape in transverse cross-section;
- said legs of the shields and said lenses having cooperating means for releasably securing the lenses to the shields;
- and a reflector mounted within each of said shields;
- said reflectors being located above the bulbs in the direction of air flow and being generally V-shaped in transverse cross-section to define apices therein;
- said reflectors being positioned with the apices thereof closer to the bulbs than the remainder of the reflectors.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath said shield in the direction of air flow;
- said frame including an external substantially air tight peripheral wall and an internal removable wall having a reflective surface thereon facing said light fixtures, said walls defining a cavity therebetween;
- and elongated lenses respectively removably mounted on said legs of the shields to encompass a bulb therein, said lenses having a generally teardrop peripheral shape in transverse cross-section.
A light fixture comprising a frame, means in the frame for mounting an air filter/distribution device therein to direct air in a predetermined direction from the air filter/distribution device to a space below it, and a plurality of individual lighting elements in the frame beneath said mounting means in the direction of air flow, said individual lighting elements each comprising an elongated generally semi-cylindrical shield positioned to open downwardly in the direction of air flow, means for mounting an elongated light bulb beneath said shield in the direction of air flow;
- said frame including an external peripheral side wall, said side wall including an inset conduit box located within the perimeter of the frame;
- and an electrical junction box mounted on said inset conduit box;
- said junction box including an electrical connector mounted thereon located within said inset conduit box;
- said inset conduit box having a predetermined length sufficient to permit an electrical supply conduit extending vertically along the exterior of the frame to be bent in a first bend inwardly into the conduit box and then in a direction generally perpendicular to the first bend for receipt in said electrical connector whereby the electrical connections for the light fixture are made within the confines of the fixture.
A light fixture for use with a high efficiency particulate air filter comprising a peripheral frame, means in the frame for mounting a high efficiency particulate air filter therein to direct air in a predetermined direction from the filter to a space below it;
- and a plurality of individual lighting elements mounted in said frame in spaced relation to each other directly beneath the high efficiency particulate air filter in the direction of air flow whereby air flowing from the filter flows over and between the lighting elements;
- said individual lighting elements each including an elongated streamlined shield mounted in said frame and including beneath the shield means for mounting an elongated light bulb therein, whereby the streamlined shields direct air flowing from the filter in a non-turbulent flow around the light bulbs mounted therein.
A light fixture for use with a high efficiency particulate air filter comprising a peripheral frame, means in the frame for mounting a high efficiency particulate air filter therein to direct air in a predetermined direction from the filter to a space below it;
- and a plurality of individual lighting elements mounted in said frame directly beneath the high efficiency particulate air filter in the direction of air flow;
- said individual lighting elements each including an elongated streamlined shield mounted in said frame and including beneath the shield means for mounting an elongated light bulb therein, whereby the streamlined shields direct air flowing from the filter in a non-turbulent flow around the light bulbs mounted therein;
- and a reflector mounted within each of said shields;
- said reflectors being located above their associated bulbs in the direction of air flow and being generally V-shaped in transverse cross-section to define apices therein;
- said reflectors being positioned with the apices thereof closer to the bulbs than the remainder of the reflectors.
A light fixture for use with a high efficiency particulate air filter comprising a peripheral frame, means in the frame for mounting a high efficiency particulate air filter therein to direct air in a predetermined direction from the filter to a space below it;
- and a plurality of individual lighting elements mounted in said frame directly beneath the high efficiency particulate air filter in the direction of air flow;
- said individual lighting elements each including an elongated streamlined shield mounted in said frame and including beneath the shield means for mounting an elongated light bulb therein, whereby the streamlined shields direct air flowing from the filter in a non-turbulent flow around the light bulbs mounted therein;
- each of said shields comprising an elongated semi-cylindrical section between the filter and its associated bulb and a pair of elongated spaced leg portions extending therefrom to a position partly encompassing the bulb;
- said leg portions being inclined towards each other and terminate at positions adjacent the surface of a bulb mounted beneath the shield.
Dependencies are inferred from the claim text.