Abstract: A system for selectively opening and closing a ventilation opening in a window glass panel. The system includes a shield gasket and a ring-shaped fixing frame inserted into the opening, with the gasket interposed between the opening and the fixing frame. A cover is inserted into the fixing frame to open and close the ventilation opening. Fixing frame alternatives include wherein the fixing frame comprises a drain structure, an exterior gutter, a filter, and peripheral elastic support hooks. Shield gasket alternatives include wherein a body part transforms into a cylindrical shape during installation of the fixing frame, and wherein a wall part comprises a circumferential elastic protruding part forming an inner space part therein. Cover alternatives include wherein the cover includes ring shaped shielding walls and a hook to engage fixing frame insertion groove.

Abstract: A shutter device for covering windows; which incorporates two panels. Each panel has clear and printed areas which are digitized with an image. When the shutters are moved in the open position, the images merge and the images of the two shutters appear back to back. When the shutters are moved in the opposite direction closed, the image from both shutters is visible. In addition to providing aesthetic appeal of the merging image, the shutter provides and blocks vision though the shutter as one panel is moved with respect to the other. The shutter device is adaptable to semicircular, circular and rectangular windows. The shutter utilizes two panels mounted on the inside of a frame; one of the panels is moveable. The panels are of a clear material, such as glass or plastic, each panel has alternate clear and printed areas.

Abstract: A shutter device for covering windows provides two shutters, each shutter having clear and opaque areas to provide and block vision though the shutter as one panel is moved with respect to the other. The shutter device is adaptable to semicircular, circular and rectangular windows. The shutter utilizes two panel, one fixed panel mounted on widow and one moveable panel, of clear material, such as glass or plastic, each panel has alternate clear and opaque areas. When the two panels are aligned so that clear areas are adjacent (open position), there is viewing through the window. When an opaque area is aligned over a clear area, vision through the shutter (closed position) is blocked.

Abstract: A shutter device for converting windows provides a means for “opening” and “closing” the shutter to provide and block vision though the shuttter. The shutter device is adaptable to semicircular, circular and rectangular windows. The shutter utilizes two panels of clear material, such as glass and plastic, each panel has alternate clear and opaque areas. When the two panels are aligned so that clear areas are adjacent (open position), there is viewing through the window. When an opaque area is aligned over a clear area, vision through the shutter (closed position) is blocked.

Abstract: A method of manufacturing a sintered compact is disclosed herein. The method comprises the steps of: (1A) producing a green body containing metal powder, for example, by means of metal injection molding (MIM); (2A) compacting the green body by pressing it preferably by means of an isostatic pressing (2A); (3A) debinding the compacted green body; and (4A) sintering the debinded green body to obtain a sintered compact. The green body compacting step may be carried out during or after the debinding step or during the debinding step. Further, a step for performing machine working on the green body may be included.

Abstract: A shutter assembly for installation across an arched window includes a fixed shutter and a movable shutter coupled to the fixed shutter for rotation between open and closed positions. A permanent magnet is attached to the movable shutter for opposite-pole magnetic attraction coupling with a permanent magnet carried on a portable, hand-held actuator. The movable shutter is engaged magnetically and indirectly by placing the actuator end portion of the portable actuator in contact with the fixed shutter in an operative position proximate to the permanent magnet on the movable shutter. The movable shutter is then rotated either clockwise or counter-clockwise by sliding the actuator end portion along an arc across the face of the fixed shutter. The permanent magnet is concealed from view by the fixed shutter, thereby preserving its ornamental appearance.

Abstract: A half-circle window covering, consisting of two fan-shaped portions with perforations cut to allow for ventilation and/or light to enter a room. The innermost fan-shaped portion has a notch removed from one lower edge to allow for pivoting of the innermost fan-shaped portion when a rod is engaged to open or close the innermost portion. The entire unit may be installed either over the upper portion of an arched window to increase or decrease the amount of light entering a room or may be installed over a doorway in an interior wall to allow light and/or ventilation to enter an interior room.

Abstract: The invention is directed to a lock system for permitting objects to be ped from a contaminated chamber into a container which is disposed in a contamination-free chamber and docked to the lock system. The lock system of the invention includes a displaceable insert mounted on a partition wall separating the chambers. The insert is in the form of a round disc rotatable about its center point. The disc includes lock openings having different cross sections which are arranged on a circle concentric to the center of the disc. The lock system of the invention permits objects of different shape and size to be passed through the lock along only one removal path.

Abstract: A window, especially for an automobile body, which consists of two sliding glass sections pivoting about a common superior axis in such manner as to constitute a total glass surface, somewhere between a quarter circle and a semi-circle in form, limited above by the straight sides of the body. The sections are operated by means of a locking catch or by means of a toothed gear control mechanism.