Abstract: A window stop device is adapted for limiting sliding movement of a window sash along a rail, and includes a restraining unit and a lever unit pivoting on the restraining unit between a locked position and an unlocked position. The restraining unit includes a pair of clamping members for flanking the rail. In the locked position, pressing arms of the lever unit press the clamping members, respectively, so that the clamping members clamp tightly the rail therebetween. In the unlocked position, the pressing arms are away from the clamping members so as to release the clamping members and permit sliding movement of the restraining unit along the rail.

Abstract: A safety window grid assembly includes a hollow housing, a rotating shaft rotatably disposed in the housing, a cord and a locking mechanism. The cord is retractable and extendable relative to the rotating shaft between a retracted state and an extended state. The locking mechanism is disposed on the housing, and includes an operating member rotatable relative to the housing, a driving member connected co-rotatably to the operating member, and a locking member. The locking member is movable between a locking position where a portion of the cord is clamped between the rotating shaft and the locking member such that the cord is not movable, and an unlocking position where the locking member is spaced apart from the cord such that the cord is movable.

Abstract: A safety window grid assembly includes a window frame unit and a grid-forming unit. The grid-forming unit includes: a rotatable shaft supported rotatably on the window frame unit; a plurality of cords, each of which has a first connecting end secured to the rotatable shaft and each of which is extendably wound on the rotatable shaft, each of the cords being retractable and extendable between a retracted state and an extended state, the cords being helical in shape and being distributed in series along the length of the rotatable shaft when the cords are disposed at the retracted state; and a connecting mechanism for interconnecting a second connecting end of each cord of the grid structure and the window frame unit.

Abstract: A window stop device is adapted for limiting sliding movement of a window sash along a rail, and includes a restraining unit and a lever unit pivoting on the restraining unit between a locked position and an unlocked position. The restraining unit includes a pair of clamping members for flanking the rail. In the locked pos it ion, pressing arms of the lever unit press the clamping members, respectively, so that the clamping members clamp tightly the rail therebetween. In the unlocked position, the pressing arms are away from the clamping members so as to release the clamping members and permit sliding movement of the restraining unit along the rail.

Abstract: A brewing device includes a supporting ring having a ring body adapted to be disposed on an inner surface of a container, and an inner magnetic member fixed in the ring body. A filter is disposed on and supported by the ring body and is movable along with the ring body. An operator includes an operator body adapted to be disposed on an outer surface of the container and is adapted to be movable relative to the container, and an outer magnetic member fixed in the operator body and magnetically engaging the inner magnetic member. The operator is operable to move the supporting ring and the filter upwardly and downwardly relative to the container.