Abstract: A device may limit opening of a sash hingedly coupled to a master frame, and includes: a bracket attached to the sash; a first arm having a first end pivotally coupled to the bracket; a second arm having a first end pivotally coupled to the first arm's second end; means for biasing the second arm into a retracted position; and a release assembly. The release assembly is secured to the master frame and includes a hook pivotable between a first position and a second position, which, in the first position, may be releasably received in an opening in the second end of the second arm when the second arm is in the retracted position, as the sash is closed and received within the master window frame The second arm is disengaged from the hook, permitting full opening of the sash, when the hook is pivoted into the second position.

Abstract: An apparatus for controlling grille aperture ratios of a plurality of air transfer grilles which are installed in a room, includes a determining unit for determining target grille air volumes of air blowing to the racks, for determining simulation air volumes of air blowing from the air transfer grilles on the basis of the target grille air volumes so that each of air of the target grille air volumes are blown to the racks, and for determining grille aperture ratios for each of the air transfer grilles on the basis of the plurality of simulation air volumes so that each of the amounts of air blowing from the air transfer grilles is replaced by each of the simulation air volumes, and a controller for controlling each of the grille aperture ratios of the air transfer grilles on the basis of each of the determined grille aperture ratios.

Abstract: A bedroom window that detects predetermined levels of carbon monoxide and automatically open by itself to save the occupants lives without any external electrical supply, replaceable alkaline batteries or any human action; this lifesaver window is self-contained, pre-assembled, solar-powered, environmentally friendly and able to open the window sash by itself to allow the CO to escape, to reduce CO concentration, to let the outside clean air to enter the room, to sound it's alarm, and to trigger the Fire & Police Private Central Station Alarm; it can be installed as new or as a replacement window in homes, hotels, hospitals, dormers or wherever humans or animals live; can be manufactured in different sizes and styles to accommodate any architectural design and furthermore it installation requires the same skills & tools needed to install a regular window without the need of other trades.

Abstract: The invention comprises a ventilator for a glass block window that includes a window frame, a window sash pivotably mounted in the window frame and a screen also pivotably mounted in the window frame. The window sash is pivotable between a closed position and an open position such that when the window sash is in the open position, rain and snow and the like are resisted from passing through the ventilator and into the building which has the glass block window. The invention also encompasses providing a ventilator as described above without the screen. Finally, a screen for a window is also provided. The screen is pivotably mounted to the window frame of the window. This screen can be used not only for the ventilator but also for other types of windows.

Abstract: A transfer apparatus is to be used for a wafer loader of an electron beam drawing apparatus, and is constructed particularly in consideration of downsizing of the apparatus as a whole, high-speed transfer for coping with high throughput, and prevention of adhesion of foreign matters for the application to DRAM of 64 and 256 megabits. A transferring mechanism for positioning and fixing an object to be transferred due to combination of positioning projections which are formed on fixing tables on which an object to be transferred is set and transferring arm assemblies and groove portions which are formed in a lower surface of the transferred object. Positioning projections are formed on fixing tables on which an object to be transferred is set and on a transferring arm, and a transferring mechanism for positioning and fixing the object by means of the combination of the positioning projections and groove portions formed in a lower surface of the object is disposed in parallel with a main apparatus.