Abstract: A surface cleaning head may include a fluid distributor configured to distribute a cleaning fluid, an agitator configured to absorb at least a portion of the distributed cleaning fluid and to agitate debris on the surface to be cleaned, a fluid stripper configured to remove, from the agitator, at least a portion of the distributed cleaning fluid absorbed by the agitator, a debris container, and a removable cover. The debris container may include a solid debris chamber and a fluid debris chamber. The removable cover may include a fluid catch plate configured to transfer at least a portion of the cleaning fluid removed from the agitator by the fluid stripper to the fluid debris chamber, the fluid catch plate being configured to selectively transition between an in-use position and a cleaning position when the removable cover is removed from the surface cleaning head.

Abstract: The present disclosure is generally directed to vacuum tools. In one example, a first wet/dry crevice tool is provided that can be coupled to a vacuum source and a cleaning fluid source. The first tool includes a vacuum orifice and a cleaning fluid nozzle assembly coupled to a cleaning fluid actuation mechanism to controllably deliver cleaning fluid to a target area to be cleaned. The vacuum orifice and the cleaning fluid nozzle assembly are configured to sealingly interface with another cooperating tool. The first tool includes latching mechanisms and tolerance rails to enable secure coupling of the first tool to another cooperating tool, for example a liquid containment tool.

Abstract: A surface cleaning head may include a fluid distributor configured to distribute a cleaning fluid, an agitator configured to absorb at least a portion of the distributed cleaning fluid and to agitate debris on the surface to be cleaned, a fluid stripper configured to remove, from the agitator, at least a portion of the distributed cleaning fluid absorbed by the agitator, a debris container, and a removable cover. The debris container may include a solid debris chamber and a fluid debris chamber. The removable cover may include a fluid catch plate configured to transfer at least a portion of the cleaning fluid removed from the agitator by the fluid stripper to the fluid debris chamber, the fluid catch plate being configured to selectively transition between an in-use position and a cleaning position when the removable cover is removed from the surface cleaning head.

Abstract: A surface cleaning head may include a fluid distributor configured to distribute a cleaning fluid, an agitator configured to absorb at least a portion of the distributed cleaning fluid and to agitate debris on the surface to be cleaned, a fluid stripper configured to remove, from the agitator, at least a portion of the distributed cleaning fluid absorbed by the agitator, a debris container, and a removable cover. The debris container may include a solid debris chamber and a fluid debris chamber. The removable cover may include a fluid catch plate configured to transfer at least a portion of the cleaning fluid removed from the agitator by the fluid stripper to the fluid debris chamber, the fluid catch plate being configured to selectively transition between an in-use position and a cleaning position when the removable cover is removed from the surface cleaning head.

Abstract: An extraction cleaner may include a cleaner body including a pump and a suction motor, a supply tank configured to be removably coupled to the cleaner body and configured to receive a first cleaning fluid, an additive tank configured to receive a second cleaning fluid, a recovery tank configured to be removably coupled to the cleaner body, and a cleaning tool including a fluid applicator and a cleaning assembly, the fluid applicator is configured to deliver one of the first cleaning fluid or a mixture of the first cleaning fluid and the second cleaning fluid to a surface to be cleaned and the cleaning assembly is configured to extract at least a portion of the delivered first cleaning fluid or at least a portion of the delivered mixture.

Abstract: An extraction cleaner may include a cleaner body including a pump and a suction motor, a supply tank configured to be removably coupled to the cleaner body and configured to receive a first cleaning fluid, an additive tank configured to receive a second cleaning fluid, a recovery tank configured to be removably coupled to the cleaner body, and a cleaning tool including a fluid applicator and a cleaning assembly, the fluid applicator is configured to deliver one of the first cleaning fluid or a mixture of the first cleaning fluid and the second cleaning fluid to a surface to be cleaned and the cleaning assembly is configured to extract at least a portion of the delivered first cleaning fluid or at least a portion of the delivered mixture.

Abstract: An extraction cleaner may include a cleaner body including a pump and a suction motor, a supply tank configured to be removably coupled to the cleaner body and configured to receive a first cleaning fluid, an additive tank configured to receive a second cleaning fluid, a recovery tank configured to be removably coupled to the cleaner body, and a cleaning tool including a fluid applicator and a cleaning assembly, the fluid applicator is configured to deliver one of the first cleaning fluid or a mixture of the first cleaning fluid and the second cleaning fluid to a surface to be cleaned and the cleaning assembly is configured to extract at least a portion of the delivered first cleaning fluid or at least a portion of the delivered mixture.

Abstract: An extraction cleaner may include a cleaner body including a pump and a suction motor, a supply tank configured to be removably coupled to the cleaner body and configured to receive a first cleaning fluid, an additive tank configured to receive a second cleaning fluid, a recovery tank configured to be removably coupled to the cleaner body, and a cleaning tool including a fluid applicator and a cleaning assembly, the fluid applicator is configured to deliver one of the first cleaning fluid or a mixture of the first cleaning fluid and the second cleaning fluid to a surface to be cleaned and the cleaning assembly is configured to extract at least a portion of the delivered first cleaning fluid or at least a portion of the delivered mixture.

Abstract: An extraction cleaner may include a cleaner body including a pump and a suction motor, a supply tank configured to be removably coupled to the cleaner body and configured to receive a first cleaning fluid, an additive tank configured to receive a second cleaning fluid, a recovery tank configured to be removably coupled to the cleaner body, and a cleaning tool including a fluid applicator and a cleaning assembly, the fluid applicator is configured to deliver one of the first cleaning fluid or a mixture of the first cleaning fluid and the second cleaning fluid to a surface to be cleaned and the cleaning assembly is configured to extract at least a portion of the delivered first cleaning fluid or at least a portion of the delivered mixture.

Abstract: Disclosed herein is a system including a pulling strap having a distal end and a proximal end opposite the distal end, the pulling strap having an integral loop extending across a lateral width of the pulling strap at the proximal end; a slouch correction sheet including: a first end and a second end opposite the first end; a first tubular webbing integral with and extending across a first portion of the first end; a second tubular webbing integral with and extending across a second portion of the first end; wherein the first and second tubular webbings are in axial alignment and a gap between the first and second tubular webbings at about a midpoint of the first end is at least as great as the lateral width of the pulling strap at the proximal end; and a rigid connecting bar dimensioned to be simultaneously received within the first and second tubular webbings and the integral loop of the pulling strap while the integral loop is within the gap in axial alignment with the first and second tubular webbings, th

Abstract: The present invention provides a Diels-Alderase and use thereof, and belongs to the field of gene engineering technology. The Diels-Alderase is MaDA, and its amino acid sequence and gene sequence are represented by SEQ ID Nos. 1 and 2, respectively. The present invention also provides MaDA-1 and MaDA-2, both of which are homologous proteins of MaDA, and their amino acid sequences are represented by SEQ ID Nos. 10 and 12, respectively. The present invention has discovered that MaDA and its homologous proteins from Morus alba can stereospecifically synthesize natural products of endo configuration, and prepare D-A type natural products and their analogs in vitro using chalcones and dehydroprenyl-containing compounds as substrates, which helps to develop and utilize the medicinal value of such natural products, and also provides a possibility to synthesize other six-membered ring-containing important chemical precursors or natural products.

Abstract: The present invention provides a Diels-Alderase and use thereof, and belongs to the field of gene engineering technology. The Diels-Alderase is MaDA, and its amino acid sequence and gene sequence are represented by SEQ ID Nos. 1 and 2, respectively. The present invention also provides MaDA-1 and MaDA-2, both of which are homologous proteins of MaDA, and their amino acid sequences are represented by SEQ ID Nos. 10 and 12, respectively. The present invention has discovered that MaDA and its homologous proteins from Morus alba can stereospecifically synthesize natural products of endo configuration, and prepare D-A type natural products and their analogs in vitro using chalcones and dehydroprenyl-containing compounds as substrates, which helps to develop and utilize the medicinal value of such natural products, and also provides a possibility to synthesize other six-membered ring-containing important chemical precursors or natural products.

Abstract: Methods and materials for providing corrosion protection for atomically thin materials are described. In some embodiments, an atomically thin material may have a coating that includes one or more alkyl amine species. The coating may cover at least a portion of the atomically thin material, and the coating may form a corrosion protection layer. Depending on the particular materials, a coating may be ionically bonded to at least a portion of an atomically thin material. In some embodiments, a method of forming a corrosion protection layer on at least a portion of an atomically thin material may involve exposing at least a portion of an atomically thin material that corrodes under normal atmospheric conditions to an alkyl amine.

Abstract: A preliminary positioning method for a TPMS uses a receiver to receive a tire pressure signal, then obtains the ID code contained in the obtained tire pressure signal, then compares the ID code with the corresponding ID codes stored in the database, and defines the ID code as a known ID code, when the ID code is found to match with one of the corresponding ID codes prestored in the database. Repeating the above steps until the ID codes of all received tire pressure signals all have been compared. If the number of the known ID codes is equal to the number of the sensors, the known ID codes are designated as specific tires according to an indication of the respective tire pressure signals, so that the positioning function can be achieved in a short period of time.

Abstract: A preliminary positioning method for a TPMS uses a receiver to receive a tire pressure signal, then obtains the ID code contained in the obtained tire pressure signal, then compares the ID code with the corresponding ID codes stored in the database, and defines the ID code as a known ID code, when the ID code is found to match with one of the corresponding ID codes prestored in the database. Repeating the above steps until the ID codes of all received tire pressure signals all have been compared. If the number of the known ID codes is equal to the number of the sensors, the known ID codes are designated as specific tires according to an indication of the respective tire pressure signals, so that the positioning function can be achieved in a short period of time.