Abstract: LED lights including a metal core printed circuit board (MCPCB) having a rear side and a front side are disclosed. At least one LED may be mounted to the front side of the MCPCB. A transparent window may be mounted and sealed to the front side of the MCPCB to enclose the LED. A portion of the MCPCB may extend from the transparent window so that it can be in heat exchange contact with water when the window of the lighting fixture is submerged in water or other fluids.

Abstract: An underwater light or submersible luminaire may include a housing and a transparent pressure bearing window positioned at a forward end of the housing. Window supporting structure may be mounted in the housing behind the transparent window. A water-tight seal may be located between the window and the housing. A circuit element may be configured and positioned within the housing behind the window supporting structure to bear at least some of the pressure applied to the transparent window. At least one solid state light source may be mounted on the circuit element behind the transparent window.

Abstract: Lighting apparatus or luminaires for use in wet, humid, or underwater environments are disclosed. The luminaire may include a plastic housing block, port assembly including a copper or copper alloy fitting and transparent port window disposed within the housing block, and a compound LED light-engine unit.

Abstract: A light for use in high ambient pressure environments having a hollow housing comprising a front and rear section and at least one LED is disclosed. A transparent window may extend across an aperture in the housing and a seal may be positioned between the front and rear sections.

Abstract: A deep submersible light may include a body defining a hollow interior and a solid state light source such as a plurality of high brightness LEDs mounted in the interior of the body. A transparent window may be mounted over the LEDs. The space between the transparent window and the LEDs may be filled with an optically transparent fluid, gel, or grease, which allows light to pass through and ambient water pressure to pass in, thus pressure compensating the LEDs by allowing them to see ambient water pressure. The transparent window may be mounted in the body for reciprocation in both a forward direction and a rearward direction to accommodate volumetric changes in the compensating fluid, gel, or grease caused by changes in temperature and water pressure as the manned or remotely piloted submarine travels from the sea surface to deep ocean depths.

Abstract: A deep submersible light fixture includes a substantially spherical exterior housing made of metal. The housing has a hollow interior and a first aperture extending through a front side of the housing. The first aperture communicates with the hollow interior of the housing. At least one LED is mounted inside the first aperture adjacent to the hollow interior of the housing. A transparent window extends across the first aperture. A seal is situated between a periphery of the window and the housing adjacent the first aperture for providing resistance to the entry of water into the hollow interior of the housing. An electrical connector extends through a second aperture in a rear side of the housing.

Abstract: A deep submersible light may include a body defining a hollow interior and a solid state light source such as a plurality of high brightness LEDs mounted in the interior of the body. A transparent window may be mounted over the LEDs. The space between the transparent window and the LEDs may be filled with an optically transparent fluid, gel, or grease, which allows light to pass through and ambient water pressure to pass in, thus pressure compensating the LEDs by allowing them to see ambient water pressure. The transparent window may be mounted in the body for reciprocation in both a forward direction and a rearward direction to accommodate volumetric changes in the compensating fluid, gel, or grease caused by changes in temperature and water pressure as the manned or remotely piloted submarine travels from the sea surface to deep ocean depths.

Abstract: A deep submersible light fixture includes a substantially spherical exterior housing made of metal. The housing has a hollow interior and a first aperture extending through a front side of the housing. The first aperture communicates with the hollow interior of the housing. At least one LED is mounted inside the first aperture adjacent to the hollow interior of the housing. A transparent window extends across the first aperture. A seal is situated between a periphery of the window and the housing adjacent the first aperture for providing resistance to the entry of water into the hollow interior of the housing. An electrical connector extends through a second aperture in a rear side of the housing.

Abstract: A deep submersible light includes a body defining a hollow interior and a solid state light source such as a plurality of high brightness LEDs mounted in the interior of the body. A transparent window is mounted over the LEDs. The space between the transparent window and the LEDs is filled with an optically transparent fluid, gel, or grease, which allows light to pass through and ambient water pressure to pass in, thus pressure compensating the LEDs by allowing them to see ambient water pressure. The transparent window is mounted in the body for reciprocation in both a forward direction and a rearward direction to accommodate volumetric changes in the compensating fluid, gel, or grease caused by changes in temperature and water pressure as the manned or remotely piloted submarine travels from the sea surface to deep ocean depths.

Abstract: An outer support body for a drawer-type dishwasher includes first and second U-shaped brackets. The first U-shaped bracket includes first and second leg members that are joined by a first cross member. Likewise, the second U-shaped bracket includes third and fourth leg members that are joined by a second cross member. The outer support body also includes side wall members that are secured to the first and third and second and fourth leg members respectively. A rear brace extends between and interconnects the side wall members at a position spaced from the second cross member. In addition, a drip pan is provided at a bottom portion of the outer support body between the side wall members.

Abstract: A support frame for a drawer-type dishwasher includes a top section and opposing side sections formed from a plurality of support members which define an open lattice work and establish a cavity for a slidable dishwasher drawer. The support frame also includes first and second rail supports that are provided on respective ones of the opposing side sections. The first and second rail supports are designed to support corresponding first and second extensible rails which, in turn, support the wash tub for movement relative to the frame. In addition, the support frame includes lid support elements for a mechanism that provides shifting of a lid member relative to the wash tub.

Abstract: A support frame for a drawer-type dishwasher includes a top section and opposing side sections formed from a plurality of support members which define an open lattice work and establish a cavity for a slidable dishwasher drawer. The support frame also includes first and second rail supports that are provided on respective ones of the opposing side sections. The first and second rail supports are designed to support corresponding first and second extensible rails which, in turn, support the wash tub for movement relative to the frame. In addition, the support frame includes lid support elements for a mechanism that provides shifting of a lid member relative to the wash tub.

Abstract: An outer support body for a drawer-type dishwasher includes first and second U-shaped brackets. The first U-shaped bracket includes first and second leg members that are joined by a first cross member. Likewise, the second U-shaped bracket includes third and fourth leg members that are joined by a second cross member. The outer support body also includes side wall members that are secured to the first and third and second and fourth leg members respectively. A rear brace extends between and interconnects the side wall members at a position spaced from the second cross member. In addition, a drip pan is provided at a bottom portion of the outer support body between the side wall members.

Abstract: This invention concerns a process for removing carbonyl-containing impurities from impure extractive distillation solvent such as a glycol, comprising: contacting the impure extractive distillation solvent with an acidic ion exchange resin. The purified extractive distillation solvent can be recycled for use as a solvent in an extractive distillation process that removes impurities from alkylene oxide. The extractive distillation solvent can be ethylene glycol monomethyl ether (EGME) used to purify propylene oxide.

Abstract: A process for purifying propylene oxide containing an unacceptable quantity of a poly (propylene oxide) polymer contaminant having a number average molecular weight of at least 50,000 and precursors having a number average molecular weight below 50,000. The process comprises contacting the propylene oxide with a sorbent selected from activated carbon, charcoal, and attapulgite for a time and under conditions sufficient to reduce the amount of the contaminant to acceptable levels, and thereafter recovering the purified propylene oxide product, wherein the propylene oxide is contacted with the sorbent at a temperature below 10° C.

Abstract: This invention concerns a process for removing carbonyl-containing impurities from impure extractive distillation solvent such as a glycol, comprising: contacting the impure extractive distillation solvent with an acidic ion exchange resin. The purified extractive distillation solvent can be recycled for use as a solvent in an extractive distillation process that removes impurities from alkylene oxide. The extractive distillation solvent can be ethylene glycol monomethyl ether (EGME) used to purify propylene oxide.

Abstract: A process for purifying propylene oxide containing an unacceptable quantity of a poly (propylene oxide) polymer contaminant having a number average molecular weight of at least 50,000 and precursors having a number average molecular weight below 50,000. The process comprises contacting the propylene oxide with a sorbent selected from activated carbon, charcoal, and attapulgite for a time and under conditions sufficient to reduce the amount of the contaminant to acceptable levels, and thereafter recovering the purified propylene oxide product, wherein the propylene oxide is contacted with the sorbent at a temperature below 10° C.

Abstract: A process for producing substantially pure isobutylene containing relatively small amounts of higher oligomer byproducts. The process may employ a Y-zeolite catalyst having a silica to alumina ratio of less than or equal to about ten.

Abstract: Provided herein is a process for producing alkylene carbonates of ultra-high purity. According to the present invention, certain stages of traditional distillation of alkylene carbonate distillation are replaced by carbon treatment. Alkylene carbonates produced according to the invention have a color of less than 25 (Pt-Co), and are suitable for uses requiring ultra-pure alkylene carbonates.

Abstract: This invention concerns a process to provide high purity alkylene carbonate though use of multiple distillations wherein the unused fractions are recycled to the reactor. The high purity alkylene carbonate may be further purified by use of carbon to produce electrochromic or photochromic grade alkylene carbonate by reducing its UV absorbance.