The present invention provides a device for cleaning gutters. The design and configuration of the device's angular side walls and the angles of the sloped upper edges of the angular sides result in a more effective and efficient removal of accumulated gutter debris. The present invention comprising a rectangular bottom, first and second angular side walls, a vertical trapezoidal rear wall, and an elongated tubular handle, wherein such features defining a scoop-like device designed and adapted to receive and remove accumulated debris from a gutter. Each of the angular side walls comprising respective top edges with each top edge comprising a plurality of respective sloped upper edges and respective horizontal edges.

The present invention provides a device for cleaning gutters. The design and configuration of the device's angular side walls and the angles of the sloped upper edges of the angular sides result in a more effective and efficient removal of accumulated gutter debris. The present invention comprising a rectangular bottom, first and second angular side walls, a vertical trapezoidal rear wall, and an elongated tubular handle, wherein such features defining a scoop-like device designed and adapted to receive and remove accumulated debris from a gutter. Each of the angular side walls comprising respective top edges with each top edge comprising a plurality of respective sloped upper edges and respective horizontal edges.

A cleaning tool includes a tool body and an extension part that extends from the tool body and that includes: a head that presses a cleaning element onto a cleaning target on a pressing surface; an inner guide part through which the head is inserted; and an outer guide part through which the inner guide part is inserted. When cleaning a first optical connector, an outer peripheral portion of the outer guide part guides the head with respect to a ferrule endface of the first optical connector. When cleaning a second optical connector that includes a housing having a different shape from a shape of a housing of the first optical connector, the outer guide part retracts and the inner guide part is exposed toward the second optical connector.

A cleaning tool includes a tool body and an extension part that extends from the tool body and that includes: a head that presses a cleaning element onto a cleaning target on a pressing surface; an inner guide part through which the head is inserted; and an outer guide part through which the inner guide part is inserted. When cleaning a first optical connector, an outer peripheral portion of the outer guide part guides the head with respect to a ferrule endface of the first optical connector. When cleaning a second optical connector that includes a housing having a different shape from a shape of a housing of the first optical connector, the outer guide part retracts and the inner guide part is exposed toward the second optical connector.

A method for detaching elastomer particles that adhere on microvalves (3) disposed on the internal surface of a vehicle tire mold (2) comprises vibrating the microvalve (3) at a constant amplitude ranging between approximately 0.05 and 0.2 mm and at a frequency ranging between 20,000 and 30,000 Hz during the detachment of the particles from the microvalve (3).

A method for detaching elastomer particles that adhere on microvalves (3) disposed on the internal surface of a vehicle tire mold (2) comprises vibrating the microvalve (3) at a constant amplitude ranging between approximately 0.05 and 0.2 mm and at a frequency ranging between 20,000 and 30,000 Hz during the detachment of the particles from the microvalve (3).

An onboard washing system provides the ability to wash specific areas at the rear of a concrete truck, without requiring an operator to climb a ladder or climb on the truck. Certain specified areas which are traditionally difficult to wash, including the inside of the charge hopper, the interior portions of the discharge chute, and rear portions of the mixing drum structure, can now be washed in an automated and efficient manner. The truck-mounted washing system has components which are specifically positioned to cause washing fluid (water) to be sprayed or directed toward predetermined areas in an efficient and effective manner. The system also includes hand-held washing wands or washing mechanisms, which allow an operator to easily reach additional zones or additional areas at the rear of the truck, which are lower. Most significantly, the truck-mounted wash systems and the hand-held nozzle systems (wand) are all operable while an operator remains on the ground.

An onboard washing system provides the ability to wash specific areas at the rear of a concrete truck, without requiring an operator to climb a ladder or climb on the truck. Certain specified areas which are traditionally difficult to wash, including the inside of the charge hopper, the interior portions of the discharge chute, and rear portions of the mixing drum structure, can now be washed in an automated and efficient manner. The truck-mounted washing system has components which are specifically positioned to cause washing fluid (water) to be sprayed or directed toward predetermined areas in an efficient and effective manner. The system also includes hand-held washing wands or washing mechanisms, which allow an operator to easily reach additional zones or additional areas at the rear of the truck, which are lower. Most significantly, the truck-mounted wash systems and the hand-held nozzle systems (wand) are all operable while an operator remains on the ground.

A cleaning composition, which is suitable for cleaning fuel delivery systems, air-intake systems, intake valves, and combustion chambers, includes at least 3 wt. % of a polyether component, at least 5 wt. % of a polar solvent, and at least 5 wt. % a non-polar solvent. The polyether component is selected from polyethers, polyetheramines, and mixtures thereof.

A cleaning composition, which is suitable for cleaning fuel delivery systems, air-intake systems, intake valves, and combustion chambers, includes at least 3 wt. % of a polyether component, at least 5 wt. % of a polar solvent, and at least 5 wt. % a non-polar solvent. The polyether component is selected from polyethers, polyetheramines, and mixtures thereof.