Submersible lighting
AssigneeHella Australia PTY, Ltd.
InventorsRichard Oppenheimer, Mark David Pryor
Life of this patent
Estimating the term…
Abstract
A submersible light (10) comprising a lens (12) sealed to the front of the reflector (20), a replaceable light source (22) housed in an aperture (25) in the reflector, a pressure member (30) positioned behind the reflector to define an air chamber (32) open at the base of the light but in sealed communication with the aperture whereby, in use, as the light becomes submerged liquid enters the base of the pressure member to pressurise the air within the pressure member to in turn form a pocket of pressurised air in the space between the lens and the reflector and thus prevent entry of liquid into that space.
Claims12
A submersible light comprising a lens sealed to the front of a reflector, a replaceable light source housed in an aperture in the reflector, a pressure member positioned behind the reflector to define an air chamber open at the base of the light and a sealed sub-chamber with the exterior of the aperture, a conduit connecting the sub-chamber to an upper part of the air chamber whereby, in use, as the light becomes submerged liquid enters the base of the pressure member to pressurize the air within the pressure member to in turn form a pocket of pressurized air in the space between the lens and the reflector and thus prevent entry of liquid into that space.
A submersible light comprising a lens sealed to the front of a reflector, a replacement light source housed in an aperture in the reflector, a pressure member comprising a dome shaped housing is positioned behind the reflector to define an air chamber open at the base of the light and in sealed communication with the aperture whereby, in use, as the light becomes submerged liquid enters the base of the pressure member to pressurize the air within the pressure member to in turn form a pocket of pressurized air in the space between the lens and the reflector and thus prevent entry of liquid into that space.
Dependencies are inferred from the claim text.