Abstract: Structures for V-bank electrostatic air filters are described. The V-bank air filters are assembled from two side panels, perforated top and bottom plates, a narrow end wall and an open wide end for the intake of air to be filtered. A pair of enclosure plates are pivotally mounted to the side panels in a parallel relationship to the respective top and bottom plates to form a pair of rectangular enclosures for respectively supporting electrostatic filter pads. The enclosure plates pivot open for removal and replacement of the filter pads. The side panels, top and bottom plates and rear wall are made from sheet metal blanks using cutting, bending and stamping processes. The enclosure plates are made from sheet metal blanks or welded wire structures. The advantage is that the structures are manufactured using simple automated processes and are quickly assembled without sub-assembly, thus time and labour are saved and costs are reduced.

Abstract: Excessive capacitive coupling in a wireless disk drive suspension having minimum dielectric film thickness for better mechanical properties is reduced by removing a portion of the wireless conductor immediately opposite the suspension conductors only to obtain reduced capacitive coupling and thus better electrical properties without sacrifice of mechanical properties.

Abstract: A disk drive suspension reduces or blocks capacitive coupling between a flexible circuit electrical connector and the steel load beam by interposing a second dielectric layer not part of the flexible circuit between the flexible circuit and the load beam. The change in capacitive coupling is realized without changing the mechanical properties of the flexible circuit, which can still be used to form the suspension flexure.

Abstract: A disk drive suspension has improved fixing of the load beam to the actuator arm by positively interlocking the actuator arm and the mount plate carrying the load beam with cooperating locking structure on the plate and arm.

Abstract: Assembly of wireless conductors onto load beams by putting up the wireless conductors in a pattern that is a multiple of the number of load beams on a fret, and indexing the pattern of wireless conductors corresponding multiple times for a succession of load beam frets in a laser welding station and welding after each indexing.

Abstract: A disk drive suspension has a noncantilevered flexure adapted to rotate about a dimple, the flexure comprising an open frame fastened by opposed tabs to a load beam, the flexure having a gimbal panel carrying the slider and connected fore and aft to the open frame for gimbaling response to slider movement providing the ease of manufacturing of an integrated flexure with the responsiveness of a dimple-type suspension.

Abstract: A chemiluminescent analytical method which comprises using a suitable catalyst in a reaction with luminol or a substituted luminol and a perborate in an aqueous solvent and detecting and measuring luminescence produced by the reaction is described. In the method, the aqueous solvent comprises a non-luminescent chelating agent for chelation of an electron-deficient boron atom in the perborate.

Abstract: A lightweight portable germicidal air filter for home and personal use is disclosed. The air filter includes a cabinet which houses an electrostatic air filter, an ultraviolet lamp and a parabolic reflector or a convex lens for focusing the ultraviolet radiation emitted by the lamp on an upstream side of the air filter. The reflector or the lens are constantly oscillated to systematically sweep the upstream side of the filter with germicidal levels of radiation. A fan located adjacent the downstream side of the filter draws air through the filter and impels it out through areas for air outlet in the sidewalls of the cabinet. The advantage is a simple, lightweight germicidal air filter with few moving parts which is inexpensive to manufacture.

Abstract: A composition and method for providing temporary masking of electrical and electronic components compatible with a high speed production operation. The composition is a radiation curable viscous liquid composition which provides minimal adhesion properties and substantial cohesive properties so that when cured, it can be readily removed in the manner of an adhesive tape. In particular, the radiation curable composition is characterized by cured properties a) of positive adhesion to the substrate to which the composition is applied, but insufficient adhesion to resist peeling forces applied by hand; and b) of sufficient cohesive strength to allow substantially all of the cured composition to be stripped mechanically or by hand in a single piece. Suitably the adhesion of the cured composition (22) to the substrate (16) as measured in the tensile shear mode, is between about 5 and 55 psi.

Abstract: A directory frame for receiving a directory card or the like for use on a shopping cart. A pair of frame members are mounted back-to-back on a shopping cart and are adapted to receive a store directory or product advertisement placard. A raised rim portion extends around the periphery of the frame members to position the directory cards, while tab sections in the directories align with and are inserted into slots in the frame members to affix the directory cards. There are apertures in each corner of the frame member for receiving the corners of a directory card. Insertion and removal of directory cards can be accomplished without the aid of hand tools.

Abstract: A collision detection mechanism includes a transmission protocol which locates a gap in a station's transmission, of fixed duration and position, relative to start of transmission. Collision detection is enhanced since random timing of collisions normally results in filling in the gap. This condition is more readily detectable than detecting the simultaneous presence of energy from two transmitters. The transmission protocol is followed unless the transmitting station detects a collision, in which event gap creation is inhibited. The gap detecting equipment may be located at a network head end.