A process and apparatus for cleaning a wafer, the wafer having a front side and a back side, are provided. The process begins with placing the wafer on a platform, and a first gas stream delivering in a direction from a center to an edge of the front side of the wafer. The first gas stream prevents liquid drops entering a work piece region on the front side of the wafer and protects the integrity of the integrated circuits. A cleaning brush is rinsed by a first liquid stream and contacting the edge of the wafer for cleaning the wafer. The cleaning brush scrubs unwanted residual materials from the edge of the wafer, and the first liquid stream flushes the cleaning brush to recover the cleaning ability.

Methods of cleaning a surface with an assembly comprise (i) delivering cleaning fluid to a first portion of a cleaning fabric and/or a first region of the surface; (ii) engaging the first region with the first portion and moving the first portion in a predefined motion; (iii) disengaging the first portion from the first region; (iv) replacing the first portion with a second portion of the cleaning fabric; (v) engaging the first region with the second portion and moving the second portion in a predefined motion; (vi) disengaging the second portion from the first region; (vii) replacing the second portion with a third portion of the cleaning fabric; (viii) moving the assembly relative to the surface and/or moving the surface relative to the assembly; and (ix) repeating steps (i)-(viii) with respect to a second region of the surface and with the third portion and a fourth portion of the cleaning fabric.

A cleaning apparatus includes a fluid reservoir assembly and a removable cleaning pad cartridge assembly. The reservoir assembly includes a reservoir body defining a closed fluid reservoir, a pump device, and at least one outlet valve which allows fluid to exit the reservoir when the reservoir is pressurized by the pump device. The cartridge assembly includes a cleaning pad support body, a cleaning pad support base, and a cleaning pad defined by an outer edge area. The support body and base are immovably joined together. The support body includes a downward-projecting outer lip, and the support base includes an upward-projecting outer flange. The outer lip of the support body is inward of the outer flange of the support base, and the outer edge area of the cleaning pad is between the outer lip of the support body and the outer flange of the support base.

A stain removal device, a head portion having a beating surface; a vibration unit which is located on an extension line of an axis of the head portion orthogonal to the beating surface and vibrates the head portion in an axis direction through driving of a solenoid actuator; and a liquid supply unit which has a liquid accommodating portion capable of accommodating liquid and supplies the liquid in the liquid accommodating portion to the beating surface through vibration of the head portion generated by the vibration unit.

A handheld air compressor accessory tool for cleaning surfaces is disclosed. The handheld air compressor accessory tool can be connected to a source of pressurized air, such as an air compressor or air tank, and a source of cleaning liquid. The air flow of pressurized air and cleaning liquid can be separately controlled by a user when holding the tool in one hand, independent from each other. The handheld tool has interchangeable tool heads, thus enabling a user to quickly change the tool from one use to another.

Cleaning systems proposed in the art have technical construct limitations in the cleaning mechanisms used, which leads to a lower ratio of power consumed to area cleaned, directly affecting the cleaning efficiency. Thus, an Unmanned Aerial Vehicle (UAV) Propelled Autonomous Multiplane Cleaning System (UPAMCS) is disclosed. An UAV and Mopping Interface Mechanism (UAV-MIM) connects a UAV to one or more mopping systems comprising an epicyclic gear driven moppers with no additional power devices used. A maneuvering mechanism disclosed enables the UAV to propel the mopping systems to reach any geometric shape or inclination. The UPAMCS provides cost, time, and power efficient surface cleaning. The UPAMCS is also equipped with vision cameras and LiDAR for guidance during landing and crawling over surfaces along with additional surface defect detection by processing the captured images.

A cleaning robot (10) for cleaning solar collectors comprises a gantry-type frame (16) configured to span a row (14) of solar collectors (12) and to define a corresponding cleaning space (24); and wheels (28) that are fixed to the gantry frame in order to move the latter and are associated with drive means. A cleaning tool (30) extends across the width of the gantry and is able to move in the cleaning space in order to be positioned with respect to the upper surface of the solar collectors (12), the cleaning tool being guided by means of guide rails (40, 42) fixed to the frame. Actuating means (54, 56) are provided to move the cleaning tool along the guide rails. At least one distance sensor (64) is arranged to determine a distance between the cleaning tool and a respective solar panel. A control unit (70) is connected to the distance sensor(s) and is configured to, continuously, adjust the position of the cleaning tool with respect to the solar panels of a row. The frame (16) comprises two lateral uprights (18, 20) that are connected in their upper part by a transverse member (22), and one of the guide rails (40, 42) is fixed to each of the lateral uprights (18, 20). The cleaning tool (30) has, towards each of its ends, a respective guide element (44) which cooperates with an associated guide rail (40, 42). The two guide rails (40, 42) define a plane of movement for the cleaning tool (30) and one of the guide rails (42) is mounted in articulated manner on one of the lateral uprights (20) so as to be able to pivot in the plane of movement. The actuating means (54, 56) comprise, at the two ends of the cleaning tool, a respective linear actuator connected to the frame, an actuating rod (54.2, 56.2) of which is connected to the cleaning tool (30) and to the guide element (44), respectively.

A cleaning robot (10) for cleaning solar collectors comprises a gantry-type frame (16) configured to span a row (14) of solar collectors (12) and to define a corresponding cleaning space (24); and wheels (28) that are fixed to the gantry frame in order to move the latter and are associated with drive means. A cleaning tool (30) extends across the width of the gantry and is able to move in the cleaning space in order to be positioned with respect to the upper surface of the solar collectors (12), the cleaning tool being guided by means of guide rails (40, 42) fixed to the frame. Actuating means (54, 56) are provided to move the cleaning tool along the guide rails. At least one distance sensor (64) is arranged to determine a distance between the cleaning tool and a respective solar panel. A control unit (70) is connected to the distance sensor(s) and is configured to, continuously, adjust the position of the cleaning tool with respect to the solar panels of a row. The frame (16) comprises two lateral uprights (18, 20) that are connected in their upper part by a transverse member (22), and one of the guide rails (40, 42) is fixed to each of the lateral uprights (18, 20). The cleaning tool (30) has, towards each of its ends, a respective guide element (44) which cooperates with an associated guide rail (40, 42). The two guide rails (40, 42) define a plane of movement for the cleaning tool (30) and one of the guide rails (42) is mounted in articulated manner on one of the lateral uprights (20) so as to be able to pivot in the plane of movement. The actuating means (54, 56) comprise, at the two ends of the cleaning tool, a respective linear actuator connected to the frame, an actuating rod (54.2, 56.2) of which is connected to the cleaning tool (30) and to the guide element (44), respectively.

A washing system that includes a vessel for storing a cleaning solution, an inlet connection point for pressurizing the vessel, and an outlet connection point for dispensing the cleaning solution. In one embodiment, the washing system includes a regulator valve configured to remain open and allow the inside of the vessel to be filled with pressurized gas via the inlet connection point when pressure inside the vessel is below a predetermined value and automatically close when pressure inside the vessel exceeds the predetermined value. In another embodiment, the washing system includes a relief valve (e.g., at the top of the vessel) that is configured to remain closed when pressure inside the vessel is below a predetermined value and automatically open when pressure inside the vessel exceeds the predetermined value.

A new combination cleaning tool construction wherein the same can be utilized for cleaning surfaces, in particular, glass surfaces such as windshields. In particular the invention described herein provides a new combination cleaning tool construction wherein the same can be utilized for cleaning surfaces, in particular, glass surfaces such as windshields or the like, with corner portions.