摘要:
Joining device according to the invention having a generally H-section, the central portion (6), forming the central bar of the H, being extended through two opposite pairs of flanges (2', 2'', 2''', 2'''') forming the legs of the H. Said flanges extend over a length several times the largest dimension of the central portion (6) of the H-section the device seen in cross section. The central portion (6) and the flanges (2', 2'', 2''', 2'''') are made of a flexible and resilient matieral, the flexibility and elasticity of the material being akin to the flexiblity and elasticity of the material of the conveyor belt for which the joining device is designed. The material of the joining devices according to the invention can include a reinforcement (4).
摘要:
A heddle frame (10) has a pair of laterally extending slats (12) and a pair of end braces (14) connected to the slats to form a rectangular heddle frame. Each of the connections between the slats and the end braces includes an elongated opening (16) defined within the end of the slat. The end brace includes an inwardly directed extension foot (18) configured on and extending essentially perpendicular from the end brace and having a width so as to be slidable within the elongated opening of the slat. A releasable locking member (24) is configured to lock the extension foot within the slat in a locked position and to release the end brace from the slat in a released position, the locking member is disposed through the extreme outward edge (22) of the slat and extends into the elongated opening of the slat. In one embodiment, the end brace is secured directly to the slat by a threaded bolt (24) extending through the extreme outward edge of the slat. In an alternative embodiment, the end brace is indirectly secured to the slat by a threaded bolt and clamp block which is received within the slat. The clamp block defines a recess for receiving the inwardly directed extension foot of the end brace.
摘要:
A time domain communications system (10, 96) wherein time modulated (220), impulse derived signals are multiplied (226) by a template signal (234), integrated (248), and then demodulated (254, 258, 260). By this process, usable signals (262) are obtained which would be otherwise obscured by noise.
摘要:
A fastening device (80) for flexible sheeting members (26, 30) that alternately are reliably joined and easily disengaged, and a method for using same is provided for a patient support system that includes a pressurizable chamber (22). A male member has two sections formed of relatively softer material. A female member includes a pair of opposed wing members configured so that external pressure exerted against each wing member toward the other wing member, leverages the wing members to positively lock the fastening device. A cord closure (88) has a manually operable release mechanism (89), which engages a cord member (82) anchored at opposite ends to a flexible sheet (26, 83, 85) secured to the fastening device. The operator selects where along the length of the cord member the cord closure is to be engaged to shorten the length of the flexible sheet (26) and pull the fastening device down below the patient support surface.
摘要:
A process of removing at least a portion of a film from a substrate, such as a wafer of silicon or other similar materials, the film on the substrate typically being an oxide film, maintaining the atmosphere embracing the substrate at near room temperature and at near normal atmospheric pressure, flowing dry inert diluent gas over the substrate, pretreating the film by flowing vapor over the substrate and film flowing an anhydrous reactive gas from a source separate from the source of vapour, over the substrate and film and particularly flowing anhydrous hydrogen halide gas, namely anhydrous hydrogen fluoride gas over the substrate and film to cause the removal of portions of the film, continuing the flow of the reactive gas over the substrate film for typically 5 to 30 seconds, until a controlled amount of film has been removed, terminating the flow of reactive gas and continuing the flow of dry inert diluent gas to stop the removal of film. In the case of non-hydroscopic film on the substrate, the flow of vapor continues during the flow of the reactive gas and is terminated shortly after the termination of the flow of reactive gas.
摘要:
Système de mesure de tension de batteries, stable par rapport à la température, et servant à mesurer des tensions séparées de modules de batteries connectés en série et constituant une alimentation en courant (10) par batteries. Selon ce système, une borne d'un interrupteur sensible à la tension (SW1-SW17) et à deux niveaux est connectée à chaque jonction entre les éléments, et l'autre borne de chaque interrupteur est connectée à une borne commune (16). Les interrupteurs sont identiques, et chacun se referme lorsqu'une première tension le traverse, et s'ouvre lorsqu'une deuxième tension légèrement plus élevée le traverse. Une tension en dents de scie est générée et connectée entre la borne commune (16) et la borne négative (12) de l'alimentation en courant par batteries. La tension en dents de scie et le courant traversant chaque circuit d'interrupteur sont simultanément mesurés et affichés, de sorte que la différence de tension entre l'apparition de n'importe quel couple d'impulsions de courant à travers n'importe quel couple d'interrupteurs est représentative de la tension du module de batterie connecté entre les deux interrupteurs.
摘要:
A moldable plastic, distortion and warp resistant wafer carrier (10) having an open top (11) for insertion and removal of wafers (5) with opposed upright end walls. Side walls (13) with inner opposed ribs for spacing axially aligned wafers (5) in the carrier (10) are provided wherein one upright end wall (40) is H-shaped with a horizontal indexing bar (44) extending thereacross intermediate the height of the carrier (10) while the other upright end wall (50) is comprised of a center panel (54) and two side panels (52) each oriented at an oblique angle relative to the center panel (54). The center panel (54) has a planar outer surface (58) with an upright center line (56) and two planar inner surfaces (60, 62) being oriented obliquely to each other at the center line (56) so that the center panel (54) is thinner adjacent the center line (56) than at outer edge portions (59) of the center panel (54). A transverse outwardly extending upper flange (28) is on each side wall (13). Each flange (28) has at least two antiwarp indentations (32) adjacent its respective ends to permit the mold to hold the wafer carrier (10) in its originally molded shape as a wafer carrier (10) cools in the mold thereby minimizing the warp of the wafer carrier (10) within the mold.
摘要:
An apparatus for performing Trendelenburg therapy and reverse Trendelenburg therapy (22) includes an intermediate frame (52) carried above a base frame (25) by an inner cross-riser (64) pivotally connected to an outer cross-riser (80). One end of the outer cross-riser (80) is pivotally connected to the base frame (24), and the opposite end of the outer cross-riser (80) is rotatably and translatably connected to the intermediate frame (52) via a cam (56) and cam follower (118) arrangement in which the cam follower (118) rides on a wear plate (58). One end of the inner cross-riser (64) is pivotally connected to the intermediate frame (52), and the opposite end of the inner cross-riser (64) is both rotatably and translatably connected to the base frame (24) via a cam (44) and cam follower (78) arrangement in which the follower (78) rolls against a lower wear plate (46). A pivotable Trendelenburg linkage (86) is carried on the end of the inner cross-riser (64) connected to the intermediate frame (52), and a pivotable reverse Trendelenburg linkage (102) is carried on the end of the outer cross-riser (80) rotatably and translatably connected to the intermediate frame (52).
摘要:
L'invention a trait au domaine des revêtements de protection dans le bâtiment. La composition pare-vapeur selon l'invention, comportant un bitume modifié renfermant au moins un copolymère d'oléfine et d'ester aliphnatique insaturé ainsi que d'acide aliphatique insaturé, est caractérisée par le fait qu'elle comprend en poids de 35 à 45% environ de bitume modifié, contenant lui-même de 10 à 12% en poids environ dudit copolymère, et de 50 à 65% environ d'une poudre d'asphalte à haute teneur en fines passant à 0,08 mm et dont la granulométrie n'excède pas 0, 315 mm, moyennant quoi la composition présente une température d'essai bille-anneau de l'ordre de 80°C et une déformabilité à -20°C de l'ordre de 15%. Application notamment à la réalisation de revêtements d'étanchéité.