Abstract: The door stopper is adhered to the front wing of the door that has been completely opened and the door is prevented to move from this point on. When the door is desired to be closed, the door is pulled gently by hand, the force applied by the door to the stopper tensions the pressure spring and the pressure spring forces the moveable head down to the floor, thereby enabling the door to pass over the stopper.

Abstract: An apparatus includes a transfer ball, a rod, a first bracket, a second bracket, a lock nut, an elastic element, and a threaded collar. The rod is coupled to the transfer ball and extends vertically from the transfer ball. The second bracket is positioned above the first bracket. The rod extends vertically through the first bracket and the second bracket. The lock nut engages to the rod and is positioned above the first bracket and below the second bracket. The elastic element is positioned above the lock nut and below the second bracket. The rod extends vertically through the elastic element. The threaded collar is positioned above the elastic element and below the second bracket. The threaded collar is engaged to the rod. The rod extends through the threaded collar.

Abstract: A wafer container with a latch mechanism that provides sealing for large wafer containers, such as for 450 mm wafers, accomplishes secure door closing and latching with reduced torque requirements for rotating the central rotatable cam plate. In various embodiments, a camming slot formed in the rotatable cammed plate is arcuate and defined by opposing cam surfaces which are selectively engaged by a cam follower, such as a roller, attached to a proximal end of a latch arm. The roller can include unitary axle portions that snap into the proximal end of the latch arm and is supported at both axial ends of the roller. The proximal end of the latch arm can include parallel extensions separated by a gap, and have guide in surfaces to deflect the extensions as the axle portions of the roller are forced into position thereby seating the roller at both axial ends.

Abstract: A locking member for locking a rod in a path for the rod to pass through, wherein the path is formed to have a substantially heart shape, wherein the locking member includes a speed regulation path portion for regulating entrance speed by causing the rod that enters the path to fluctuate, and a locking portion for locking the rod whose entering speed is regulated, wherein the speed regulation path portion extends in a vertical direction that is perpendicular to a width direction of the locking member, and the speed regulation path portion includes rod receiving portions that are disposed at a start edge and an end edge, wherein the rod receiving portions are for regulating the entering speed by receiving the fluctuation in a forward and backward direction of the rod that enters the speed regulation path portion.

Abstract: Disclosed is a door catch that can help to prevent door sag, especially for heavy or tall residential or commercial doors, and provides for post-installation catch tension adjustment without removal or adjustment of mounting members. In one aspect, the door catch can include a ball catch base, a threaded ball plunger assembly, a catch bumper, and a bumper base. In another aspect, the catch bumper and the bumper base can optionally be combined into a single catch bar bracket. The ball plunger assembly is adjustably mounted within a threaded aperture of ball catch base. A ball captive in one end of the ball plunger assembly engages a detent in the catch bumper, or catch bar bracket, providing friction to hold the door open. The position of the ball plunger assembly can be adjusted vertically to increase or decrease the tension between the detent and the ball plunger assembly.

Abstract: A shelf device comprises an enclosed frame that includes a plurality of members, a concealed compartment within the frame, and a locking system that includes a locking mechanism comprising a slide bolt and magnetic lift positioned perpendicularly within the slide bolt, a ledge that is engaged with the slide bolt when the locking system is locked, and a magnet. The magnetic lift moves in one direction to cause the slide bolt to move perpendicularly to the magnetic lift's direction as the slide bolt disengages or engages with the ledge to unlock or lock the shelf, respectively. In one embodiment, a rare earth magnet is aligned with the magnetic lift to pull the magnetic lift vertically upward causing the slide bolt to move horizontally backward to disengage the slide bolt from the ledge. Consequently, the shelf is opened as one or more frame members are released to expose the concealed compartment.

Abstract: A fastening device for a fitting or housing of plastic such as a swivel lever control, socket wrench control, or sash closure which can be fixed in at least one preferably rectangular opening in a thin wall such as a sheet metal cabinet door and with tongues which project from the fitting or housing so as to be integral therewith, the free ends of the tongues being supported on the rear rim area or the edge of the opening. A supporting spring which is made of spring metal and which is bent to form a profile that is U-shaped in cross section encloses the free end of the tongue.

Abstract: An adaptor for a window locking mechanism wherein the locking mechanism includes a keeper on a window sash and a cam roller on a window frame, the adaptor comprising a body portion having first and second sides with a recess being formed in the body portion, the recess being sized to receive a portion of the cam roller, the body portion further having at least one ramped portion extending from an edge of the recess to the first side. The adaptor can be used with conventional cam roller windows and provides an improved surface engagement and a greater displacement span.

Abstract: A compression latch with a folding handle for selectively holding a door closed, includes. The latch includes a housing with a cup portion for receiving the handle in the folded down position such that the projection of the latch handle above the exterior surface of the door is minimized in the folded-down position. The handle functions to move a pawl in a combination of rotational and rectilinear movements as the pawl is moved between latched and unlatched positions.

Abstract: A safety structure for a cover device includes a base assembly and a cover assembly. The base assembly has a concave portion. The cover assembly is hinged to the base assembly and may cover the base assembly. The cover assembly has a cover body and a projection, which may elastically protrude out of and retract into the cover body, and may be fit into the concave portion for positioning. The projection is configured such that it may retract into the cover body to prevent an object from being hurt when the cover assembly is placed down and touches the object.

Abstract: A method and apparatus for counteracting the effects of warpage, distortion and/or tilting of a support track in a sliding closure assembly, such that a door in the sliding closure may be freely moved along the support track, but, when desired, may be secured in one or more locations such that an external force is required to move the sliding fixture from its desired position.

Abstract: A device for unloading a container used for bulk materials is such that a container floor is made up at least in part of flaps which can be tilted or swung out away from the interior. To this end at least two flaps are connected via a ridging beam or axle which runs through the interior of the container above a rotatable shaft. The rotational movement of the shaft is transmitted to the flaps to actuate same. The shaft features on opposite sides and transverse to its longitudinal axis first and second flange pairs, the former accommodating an elbow lever with the help of a push-fit bolt, and the latter a lever with the help of a bolt. The elbow lever and the lever are hinged to the flaps respectively. Further, connected to the flaps is a lock which joins up via bolts with the elbow lever or the lever, and in the closed position engages on a latching device.

Abstract: A reciprocatory device in the form of a roller door catch has a reciprocatory plunger slidable in a fixed tubular housing and retained therein by an adjustment member. The plunger is urged to a normal resting position by a compression return spring. At its outer end the plunger rotatably supports a catch roller engageable with a recessed keeper mounted on the door frame. The adjustment member has a stem portion which projects into a blind bore at the inner end of the plunger, and this stem has radial stub projections which engage with a helical rib providing a screw thread within said bore, with a clearance in the axial direction approximating to the normal range of plunger reciprocation on door opening and closure. The adjustment member has a head portion with a frusto-conical clutch face which frictionally engages a mating clutch face at the inner end of the housing.

Abstract: A door keeper for double swing doors that retains the doors against partially opening due to wind forces. The keeper includes a permanent magnet that is mountable to a door frame. The magnet includes a flat surface that may be positioned flush with the adjacent surface of the door frame. A roller formed of magnetic material is mounted on brackets to the door in close proximity to the magnet when the door is in a closed position. Brackets mount the roller for free rotational movement about its axis and limited transverse movement toward and away from the permanent magnet surface. Therefore, when the door is in a closed position, the roller is engaged with the magnet by magnetic attraction, which retains the door in a closed condition against reasonable wind force. However, the roller is capable of rolling over the magnet surfaces when the door is subsequently moved by someone wishing to leave or enter the associated building.