A system includes a UV light source and an optical medium coupled to receive UV light from the UV light source. The optical medium is configured to emit UV light proximate to a surface from which biofouling is to be removed once the biofouling has adhered to the protected surface. A method corresponds to the system.

A dispensing method is disclosed that includes the following steps: a cleaning sleeve is provided to surround a spray member. A first fluid is previously dispensed from a first fluid outlet of the spray member. A second fluid is sprayed from a second fluid outlet of the cleaning sleeve to clean the spray member. The cleaning sleeve is opened or slid away from the spray member, such that the first fluid outlet of the spray member is exposed to a substrate. The first fluid is dispensed from the first fluid outlet of the spray member to the substrate.

An inspection lens, including a lens tube having a central longitudinal axis and a plurality of axially aligned optical elements, including an outermost element. A sheath surrounding the lens tube and defining there between an annular air flow channel. The sheath has a diversion nozzle at a distal end, terminating in a lens tip. The diversion nozzle is configured to divert the air flow in the annular channel inward toward the longitudinal axis and at a slight reverse angle of between 0-18 degrees relative to a plane normal to the axis and back toward the outermost element creating a reverse oblique impinging jet inside said lens tip that minimizes any recirculation zone in front of the outermost element.

An inspection lens, including a lens tube having a central longitudinal axis and a plurality of axially aligned optical elements, including an outermost element. A sheath surrounding the lens tube and defining there between an annular air flow channel. The sheath has a diversion nozzle at a distal end, terminating in a lens tip. The diversion nozzle is configured to divert the air flow in the annular channel inward toward the longitudinal axis and at a slight reverse angle of between 0-18 degrees relative to a plane normal to the axis and back toward the outermost element creating a reverse oblique impinging jet inside said lens tip that minimizes any recirculation zone in front of the outermost element.

The present invention relates to an antifouling coating composition, an antifouling coating film, a substrate with an antifouling coating film, a antifouling substrate, a method for producing substrate with an antifouling coating film, and a method for preventing substrate from fouling. The antifouling coating composition includes a hydrolyzable polymer (A) including at least one selected from the group consisting of a polymer (A1) having a structural unit represented by the formula (1) below and a polymer (A2) having a structural unit represented by the formula (2) below, a tertiary carboxylic acid component (B) including versatic acid, and an antifouling agent component (C).

##STR00001##

[In the formula (1), M is zinc or copper, and R.sup.1 independently at each occurrence is a hydrogen atom or a methyl group.]

—COO-M-O—COR.sup.2  (2)

[In the formula (2), M is zinc or copper, and R.sup.2 is an organic group.]

The present invention relates to an antifouling coating composition, an antifouling coating film, a substrate with an antifouling coating film, a antifouling substrate, a method for producing substrate with an antifouling coating film, and a method for preventing substrate from fouling. The antifouling coating composition includes a hydrolyzable polymer (A) including at least one selected from the group consisting of a polymer (A1) having a structural unit represented by the formula (1) below and a polymer (A2) having a structural unit represented by the formula (2) below, a tertiary carboxylic acid component (B) including versatic acid, and an antifouling agent component (C).

##STR00001##

[In the formula (1), M is zinc or copper, and R.sup.1 independently at each occurrence is a hydrogen atom or a methyl group.]

—COO-M-O—COR.sup.2  (2)

[In the formula (2), M is zinc or copper, and R.sup.2 is an organic group.]

A collection apparatus for collecting waste from cleaning operations performed on an aircraft turbine engine includes a frame structure, a support arm having a first end movably attached to the frame structure and an opposite second end, an actuator device adapted to enable raising and lowering the support arm, a waste storage tank, a duct having an inlet end and an opposite outlet end adapted to be removably connected to the waste storage tank, and a flexible duct portion having a flexible portion inlet end and a flexible portion outlet end. The inlet end of the duct is adjustably supported by the second end of the support arm. The flexible portion outlet end engages the inlet end of the duct in fluid communication, and is bendable both up/down and sideways and is expandable in length between the flexible portion inlet end and the flexible portion outlet end.

An internal ultraviolet-C light emitting diode antifouling system and method that include a waterproof, light transmissible potted enclosure; an object disposed within the waterproof, light transmissible potted enclosure; and at least one ultraviolet-C light emitting diode disposed within the waterproof, light transmissible enclosure, wherein the at least one ultraviolet-C light emitting diode is configured to emit light on the object, wherein the light is configured to prevent biofouling on the object.

An internal ultraviolet-C light emitting diode antifouling system and method that include a waterproof, light transmissible potted enclosure; an object disposed within the waterproof, light transmissible potted enclosure; and at least one ultraviolet-C light emitting diode disposed within the waterproof, light transmissible enclosure, wherein the at least one ultraviolet-C light emitting diode is configured to emit light on the object, wherein the light is configured to prevent biofouling on the object.

A portable, reusable concrete washout is provided. In a preferred embodiment, the washout is constructed from a series of blocks that can be removably interlocked together and can be easily transported so that the washout may be assembled and disassembled onsite. A plastic sheet or other containment member can be laid over and secured to the washout to hold and contain the mixture of water and concrete as it is washed from the equipment. The blocks are preferably poly-cuboidal in shape and design, whereby the blocks can be stacked and overlap with one another. The blocks further include at least one type of interlocking mechanism for the removable interlocking and attachment of one block to another.