Abstract: A tower closing apparatus is provided that is configured to simplify the closing of a multi-piece, hinged hydroponic tower. The hydroponic tower closing apparatus utilizes a collection of static and continuously moving components (e.g., motor driven drive rollers, alignment rollers, tower body alignment rollers, face plate manipulation rollers, face closing rollers, etc.) to close a hydroponic tower as it passes through the apparatus. In particular, as the tower is driven through the closing apparatus, a series of face plate manipulation rollers gradually rotate the face plate(s) relative to the tower body, moving the face plate(s) from a fully open position to a partially closed position. Next a series of face closing rollers continue to rotate the face plate(s) from the partially closed position to the fully closed position, forcing the fasteners to latch the face plate(s) into position.

Abstract: A tower opening apparatus is provided that is configured to simplify the opening of a multi-piece, hinged, hydroponic tower. The hydroponic tower opening apparatus utilizes a collection of static and continuously moving components (e.g., motor driven drive rollers, alignment rollers, stationary wedges, longitudinal ramps, etc.) to open a hydroponic tower as it passes through the apparatus. In particular, as the tower is driven through the opening apparatus, the fastener(s) holding the face plate(s) to the tower body is released by a wedge(s). After the fastener(s) is released, the face plate(s) is partially rotated about the tower body, thereby partially opening the tower cavity(s). Next a longitudinal ramp(s) continues to rotate the face plate(s) relative to the tower body, moving the face plate(s) to a fully open position.

Abstract: A method includes receiving, at one or more server computers, an assignment creation request from a leader user account. The assignment creation request identifies a document that is stored at a storage system, identifies a plurality of participant user accounts, and causes creation of an assignment at the one or more server computers. The method also includes storing, at the storage system, a respective copy of the document for each participant user account, wherein an ownership parameter for each respective copy of the document references a respective participant user account from the plurality of participant user accounts.