Abstract: A thermal transfer donor element is provided which comprises a support, a light-to-heat conversion layer, an interlayer, and a thermal transfer layer. When the above donor element is brought into contact with a receptor and imagewise irradiated, an image is obtained which is free from contamination by the light-to-heat conversion layer. The construction and process of this invention is useful in making colored images including applications such as color proofs and color filter elements.

Abstract: A detachable housing structure of a computer, including a main base board and a detachable base board. The main base board includes a front section and a rear section. The rear section serves to bear a computer main circuit board, a power supply and other components. The detachable base board is detachably assembled with the front section. The detachable base board has an L-shaped structure, having a front vertical panel serving as the face panel of the computer and a horizontal panel on which the hard disc drive, floppy disc drive and CD ROM device are mounted. When assembling the detachable base board with the main base board, the detachable base board is locked and located by engaging structure and locking mechanism. The detachable base board can be easily drawn out of the main base board for maintenance, replacement and expansion.

Abstract: A ratchet driving mechanism includes a gear rotatably engaged in a housing. A pair of pawls are disposed in the opening and biased to engage with the gear by a U-shaped spring member. A pair of partitions are engaged with the gear and the spring member and the pawls for retaining the elements in place. A control ferrule is rotatably secured to the housing and includes a plate having an actuator extended between the pawls for acting on the pawls and for controlling the driving directions of the gear. The U-shaped spring member may be easily engaged into the housing.

Abstract: An integrated micro thermister type flow control module in which, when a fluid enters the integrated module past a fluid channel and a suspended microstructure into a thermally-driven microvalve zone, the latter utilizes heat actuation to drive a silicon microbridge with mesa to open a linear proportional flow microvalve. A thermister type flow sensing unit is disposed in the fluid channel to sense the flow amount. The sensing unit is synchronously made with the microvalve and the silicon microbridge structure in an integration process so as to reduce manufacturing steps and minimize the size of the module.

Abstract: A method and a system are provided for managing fixed size memory blocks in a graphic imaging system. A system memory includes at least one queue containing a linked list of fixed size memory blocks and a page pool of variable size memory blocks. A system memory manager allocates memory blocks from the system memory in response to requests. Upon a request for a memory block of a particular fixed size, the system memory manager allocates a memory block of the fixed size from a queue containing memory blocks of the fixed size if the queue has memory blocks available. If the queue does not have memory blocks available, the system memory manager creates an extension to the queue containing memory blocks of the fixed size. The extension is created from a page pool. The extension is linked to the queue, and a memory block of the fixed size is then allocated from the queue.

Abstract: An improved wall covering track system includes an elongate track for vertically supporting a series of carriers and enabling the carriers to horizontally translate along the track, the raceway surfaces of the track are inclined downwardly from the horizontal, the carriers have frusto-conical wheels, which may be mounted on straight or frusto conical axles. A drapery and a vertical blind system includes spacers, and a variety of track extrusions are illustrated.

Abstract: A modular receptacle jack assembly with a visual indication function provides a visual indication when the receptacle jack is connected with a mating plug jack. The modular receptacle jack assembly comprises a modular receptacle jack and an indicator mounted to the jack. The jack includes a housing having a bottom wall for connection to a printed circuit board, a top wall opposite the bottom wall, a front face defining a cavity for receiving the mating plug jack and a rear face opposite the front face, and a number of contacts securely fixed to the bottom wall of the housing and having contact portions extending into the cavity. The indicator includes a base having a first wall attached to the top wall of the housing and a second wall attached to the rear face of the housing and defining holes extending lengthwise therethrough. Diodes are mounted on the base and have leads extending through the holes.

Abstract: The present invention uses a glass to act as a substrate. A stencil layer is patterned on the top surface of the substrate. Successively, a copper layer is deposited over the substrate. Next step is to remove the stencil layer. A negative photoresist layer is formed on the copper layer. A negative photoresist layer is processed using a backside exposure of the resist through the transparent substrate. The backside exposure technique uses the self-aligning, conductive copper layer as a mask. A plurality of trenches are then created in the photoresist layer and a second copper layer is electroplated in the trenches to form the planar coils.

Abstract: A circuit breaker handle is provided with a curved bearing surface at its pivot point. The handle bearing surface has a substantially constant radius and is connected to the body of the handle with a necked down handle extension. The handle extension has a width that is less than the width of the curved bearing surface at the point of connection between the bearing surface and the necked down region. The handle pivot mates with a corresponding bearing surface on a notch in the side plate that it pivots within. The arc of the curved bearing surface in the side plate is greater than that of the corresponding bearing surface on the handle and captures the handle pivot within the notch in the sideplate, so the handle cannot lift off the bearing surface on the notch as it is moved.

Abstract: A method of fabricating an air-gap spacer of a metal-oxide-semiconductor device includes the following steps. First, a substrate having a gate oxide layer and a polysilicon layer successively formed is provided. The polysilicon layer and the gate oxide layer are patterned to form a gate electrode region. A silicon nitride layer and an oxide layer are successively formed on the surface of the substrate and the surface of the gate electrode region. The oxide layer and the silicon nitride layer are anisotropically etched to form a cross-sectional L-shaped silicon nitride layer and a first spacer at the sidewall of the gate electrode region. After the first spacer is removed, an ion implantation is performed to form an extended lightly doped region below the L-shaped silicon nitride layer in the substrate and a lightly doped region in the substrate surrounding the extended lightly doped region.

Abstract: A one-piece injection molded arm and blade unit for a ceiling fan, or the like, in which a blade forms an extension of an arm. At least one web formed on the arm, and at least one other web is formed on the arm and extends at an angle to the first web. The webs serve to add strength to the unit to counteract the various stresses placed on the unit during operation.

Abstract: A etchant recipe including a mixed gas of one of a CH.sub.x F.sub.y group and CO gas is used to etch a silicon nitride layer by plasma etching so as to form a thin polymer layer to protect a silicon layer under the silicon nitride layer from over-etching. Then a soft etching is performed to remove the thin polymer. The etchant recipe is, for example, used in forming a contact opening on a gate of a MOS transistor, on which a silicon nitride layer is formed.

Abstract: A ratchet screw driver includes a handle having a tube and having a number of ratchet teeth and a driving stem rotatably engaged in the tube. A follower is slidably engaged on the driving stem and includes a number of ratchet teeth for engaging with the ratchet teeth of the handle. A spring may bias the ratchet teeth of the follower to engage with the ratchet teeth of the handle for allowing the driving stem to be rotated in an active direction by the handle and to be rotated freely relative to the handle when the handle is rotated in the reverse direction.

Abstract: A two-part field emission structure, and a method for making such a structure, is described. A substrate is provided having a first conductive layer thereon, a first insulating layer over the first conductive layer, a second conductive layer over the first insulating layer, and an opening formed in the first insulating and second conductive layers. A sacrificial layer is formed over the second conductive layer. A bottom portion of the field emitter structure is formed in the opening, by vertical deposition of a conductive material, whereby a third conductive layer, having a collimated channel over the bottom portion, is formed over the sacrificial layer. The formation of the field emitter structure is completed by vertical deposition of a tip material on to the top of the bottom portion of the field emitter structure, whereby a top conductive layer is formed over the third conductive layer. Lastly, the sacrificial layer, the third conductive layer, and the top conductive layer are removed.

Abstract: An apparatus for pressing a pair of trousers includes a steam supply manifold with an inlet and an outlet end and right and left leg steam ducts which are in communication with the outlet end of the main steam supply manifold. The right and left leg steam ducts are adapted to introduce steam into the right and left legs, respectively, of a pair of trousers. An expandable waist clamp assembly is secured to the right and left leg ducts and is expandable between a first position which allows the trousers to be easily introduced over the assembly, and a second expanded position which securely retains and helps to shape the trousers during the pressing operation.

Abstract: A pipe cleaning device has a handle, a center rod, a center rod sealing plate, and a scraper assembly. The center rod has a central hollow space having one end connected to the handle and the scraper assembly mounted on the other end. The center rod sealing plate is a three-plate structure for sealing off the pipe opening. The center rod sealing plate has a central hole for the insertion of the center rod. The three-plate structure of the center rod sealing plate serves to increase the ease of disassembling and maintenance. The scraper assembly includes an upper scraper and a lower scraper, wherein the lower scraper has additional scraping knives on its blades to facilitate the scraping of blocking material inside the pipe. Moreover, the scrapers do not block off gas flow inside the pipe completely, so the pump can still pump exhaust gases out even when the scraper assembly is in use.

Abstract: A lock includes a case having a shield, a locking member housing contained in a first chamber of the case and protected by the shield, a locking member contained in the locking member housing, a locking rod also contained in the first chamber of the case and moved by the locking member in locking and unlocking, and a deadbolt having a press portion and a rod portion with an annular groove for the end of the locking rod to engage in for locking. The locking member has a single or a double pin tumbler locking mechanism, or a disc tumbler locking mechanism.