Controlled environment light fixture
OwnerGeorge B. Ryder, Agjah I. Libohovainventors
Life of this patent
Estimating the term…
Abstract
Controlled environment light fixture configurations include an LED light source. The light fixtures can be installed and removed from below the ceiling. The light fixture can be installed and removed without opening the lens frame of the light fixture. The light fixture includes a sealed housing and seals to the ceiling when installed. The light fixtures are provided in exterior dimension sizes that allow the fixtures to be installed in a variety of controlled environment ceilings in recessed configurations. The lower surface exposed to the controlled environment is free of welds and grinds in order to provide a corrosion resistant surface.
Claims42
A light fixture for a controlled environment ceiling application, the light fixture comprising:
- an enclosure that includes a housing and a lens frame;
- the housing having an upwardly-facing mounting surface adapted to be disposed below the ceiling when the light fixture is installed;
- an LED light source disposed within the enclosure;
- a gasket carried by the housing;
- the gasket having a first portion for sealing the housing to the ceiling when the light fixture is installed in the ceiling;
- the first portion of the gasket being disposed on the upwardly-facing mounting surface;
- the gasket having a second portion disposed between the lens frame and the housing to seal the lens frame to the housing;
- and
- the entire gasket being disposed above the lens frame such that the gasket is concealed by the lens frame.
A light fixture for a controlled environment ceiling application, the light fixture comprising:
- an enclosure that includes a housing and a lens frame;
- the housing having a flange that defines an upwardly-facing mounting surface adapted to be disposed below the ceiling when the light fixture is installed;
- an LED light source disposed within the enclosure;
- a gasket carried by the housing;
- the gasket having a first portion for sealing the housing to the ceiling when the light fixture is installed in the ceiling;
- the first portion of the gasket being disposed on the upwardly-facing mounting surface;
- the gasket having a second portion disposed between the lens frame and the housing to seal the lens frame to the housing;
- the gasket having first and second legs with the flange disposed between the first and second legs of the gasket;
- and
- wherein the housing includes a connector mounting member disposed below portions of the flange to define a channel which receives the second leg of the gasket.
A light fixture for a controlled environment ceiling application, the light fixture comprising:
- an enclosure that includes a housing and a lens frame;
- the housing having an upwardly-facing mounting surface adapted to be disposed below the ceiling when the light fixture is installed;
- an LED light source disposed within the enclosure;
- a gasket carried by the housing;
- the gasket having a first portion for sealing the housing to the ceiling when the light fixture is installed in the ceiling;
- the first portion of the gasket being disposed on the upwardly-facing mounting surface;
- the gasket having a second portion disposed between the lens frame and the housing to seal the lens frame to the housing;
- and
- connectors that connect the lens frame to the housing;
- the connectors being disposed directly under and aligned with the upwardly-facing mounting surface.
Dependencies are inferred from the claim text.