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US 5,865,674 AGranted
Flush lighting system for cleanroom
AssigneeEnvirco Corporation
InventorJerry Starr
Life of this patent
Estimating the term…
Abstract
A flush lighting system for cleanroom environments encompassing a modular ceiling design includes a light well housing, filter packs above and adjacent to the light well housing, and a locking apparatus to seal the various light well housings and filter packs. By utilizing such a design, filtered air flows uniformly downward across the entire area of the ceiling without creating dead air channels underneath the light wells.
Claims25
A lighting fixture, comprising:
- a housing having a lower and an upper opening, said housing comprising a plurality of walls;
- the lower opening configured to receive a plate-like member positioned in said lower opening;
- the upper opening configured to receive an air filter to permit airflow exiting said air filter to flow through said upper opening;
- a first primary sealing member positioned along at least one of said plurality of walls and above said lower opening to interengage a first complementary sealing member of a proximate wall to effect a seal therebetween such that said lower opening and said proximate wall are substantially flush at a lowest point of said housing and said proximate wall;
- and
- a second primary sealing member positioned along at least one of said plurality of walls and above said first sealing member adapted to interengage a second complementary sealing member associated with said air filter to effect a seal therebetween.
3 more elements
A modular lighting fixture for cleanrooms, comprising:
- a housing having first and second openings, said housing comprising a plurality of walls, each of said plurality of walls having a first and second portion;
- the first opening configured to receive a plate-like member positioned in said first opening;
- the second opening configured to receive an air filter to permit airflow exiting said air filter to flow through said second opening;
- a first primary sealing member positioned along said first portion of at least one of said plurality of walls and above said first opening to interengage a first modular member adjacent at least one of said plurality of walls to effect a seal therebetween such that said first opening and said first modular member are positioned at a lowest vertical point of said fixture;
- and
- a second primary sealing member positioned along said second portion of at least one of said plurality of walls adapted to interengage a second modular member adjacent at least one of said plurality of walls to effect a seal therebetween.
3 more elements
A modular ceiling system for cleanrooms, comprising:
- a walled housing having an upper and a lower opening;
- the lower opening configured to receive a plate-like membrane positioned in said lower opening;
- a lighting fixture located within said walled housing between said lower opening and said upper opening;
- the upper opening configured to receive an air filter to permit airflow exiting said air filter to flow through said upper opening;
- and
- a primary sealing member positioned along at least a portion of said walled housing and above said lower opening to interengage a complementary sealing member of a modular member adjoining said walled housing to effect a seal therebetween such that said walled housing and said modular member are horizontally flush at a lowest point of said modular ceiling system.
3 more elements
A modular lighting fixture for insertion in a clean room ceiling, comprising:
- a first modular member having an upper and a lower opening, said first modular member comprising a plurality of walls, each of said walls having an upper and lower portion;
- the lower opening adapted to receive an air permeable membrane positioned in said lower opening;
- the upper opening adapted to receive an air filter to permit airflow exiting said air filter to flow through said upper opening;
- a first sealing member positioned along the lower portion of at least one of said plurality of walls and above said lower opening to engage an adjacent modular filter of a second modular member in sealing relation such that said lower opening and said second modular member are equally positioned at a lowest vertical point of said clean room ceiling;
- a second sealing member positioned along at least one of said plurality of walls and above said first sealing member adapted to engage said air filter in sealing relation;
- and
- at least one supporting member extending from at least one of said plurality of walls adapted to engage said adjacent modular filter in a position such that the bottom of the first modular member is substantially flush with the bottom of said second modular member.
4 more elements
A modular ceiling system, comprising:
- a walled housing having a lower and an upper opening, the lower opening configured to support an air-permeable membrane, the upper opening configured to receive a first air filter to permit airflow exiting said air filter to flow through said upper opening, a first sealing member positioned along each wall of the housing and above said lower opening to interengage a proximate walled housing to effect a seal therebetween, and a second sealing member positioned along each said wall and above said first sealing member to interengage said first air filter to effect a seal therebetween;
- said proximate walled housing enclosing a second air filter, said proximate walled housing sealed to the walled housing so that the housings are substantially vertically flush at a lowest vertical point of said modular ceiling system;
- and
- a frame adapted to surround said walled housing and said proximate walled housing and sealably engage said housings, thereby creating a modular unit.
1 more element
Dependencies are inferred from the claim text.