摘要:
A novel flexible laminated beam contractor interface package for applications between chips and the like and test equipment therefor, containing a flexible core beam contractor laminated within outer ground shield beam coverings and provided with an exposed contact tip for connecting with test equipment externally to the package; and with contacts adapted flexibly to engage the chip terminals when the chip is temporarily applied to the package for testing; the laminated beam contactor preferably being shaped as bent flexible cantilever or curved beams.
摘要:
A bar of soap or soap dispensing container "bar", whereby teeth or ridges are formed into the product such that as it is rubbed on the body, the contact pressure causes the teeth to lightly bend the skin at a number of points creating a series of waves in the skin which move along the surface of the skin as the soap is moved, thereby creating a traveling wave which acts to help remove dirt and dead skin particles and create a pleasant massaging effect, wherein the teeth forms are shaped to provide transverse and lateral strength in the product so it will not easily break, and so that it can be stacked for more dense shipping and better handling.
摘要:
A novel means for providing an internal damping mechanism for a system with structural load supporting members that may be subject to time-varying loads, where the structure's structural members have rough holes formed in them, either by casting, drilling, or welding pipe, where the holes can be any shape, but the ideal shape and location maximizes the product of the perimeter of the shape and the distance from the neutral axes to the neutral axis of the structure, so a smooth surfaced shear member, with a diameter several millimeters smaller than the hole and a surface finish on the order of 0.5 micron R.sub.a, with its surfaced covered with a very viscous fluid, can be inserted into the hole so a replicant, such as epoxy or rubber, can be injected around the shear member, such that when the structure bends, shear strains occur between the structure and the shear members and this strain occurs across the viscous fluid interface which is very thin because of the use of the replicant, so therefore the energy dissipation rate will be high and bending and axial vibrations will be damped, said damping system being referred to as a replicated-in-place shear damper.
摘要:
A debris cleaning device is equipped with a compound auger which has a rigid inner auger portion with auger fighting and a plurality of compliant combing attachments connected to the edge of the fighting. Instead of the compound auger, a helical rotary brush with a dense inner region of shorter stiffer bristles and a less populous outer region of longer bristles may be used. The cleaning device also has a suction mechanism with a nozzle located about at the midway point of the length of the auger (or rotary brush). The auger (or rotary brush) is positioned horizontally with its rotational axis co-linear with, or parallel to, an axle of supporting wheels so that the auger (or rotary brush) follows the contour of the surface being cleaned as do the wheels, thereby preventing the auger (or rotary brush) from digging into uneven terrain. The auger (or rotary brush) is positioned at a height above the surface which allows the outer edges of the compliant combing attachments (or longer bristles) to contact the surface. As the attachments (or longer bristles) engage the surface, they dislodge material and help convey it along the axis of the auger (or rotary brush) to a central collection area in front of the auger (or rotary brush) where the nozzle is located. The material is then drawn in through the nozzle by the suction mechanism. The pneumatically conveyed material is then shredded by a fan and exhausted to a collection hopper.
摘要:
A modular system and a method of creating a modular system comprising a substantially rigid frame and a plurality of modules mounted at predetermined locations on the frame by means of kinematic couplings. The frame includes a main beam in the form of a spine, and a plurality of transversely extending bulkheads. The method includes creating a model of the system using rigid bodies and thereafter providing the frame and modules and securing them kinematically. The kinematic couplings comprise three pairs of aligning elements, each in the form of a male element and a contact element. The contact elements may take the form of grooves, tetrahedral depressions, or flat surfaces.
摘要:
A wafer gripper assembly comprises first and second gripping members movably supported relative to each other. A motor propels the gripping members linearly towards and away from each other. Preferably both gripping members are movably supported, and a rotary-to-linear translator produces equal and opposite linear movement of the gripping members. Typically, at least six contactor elements are defined on the pair of gripping members. The contactor elements include a vertically extending portion having an inwardly facing convex surface for contacting an edge of a wafer, and an inwardly extending flange for supporting a lower surface of the wafer.
摘要:
A novel means for the design of a spindle having a shaft provided with a hydrostatic bearing end surface for resisting axial thrust force upon the end surface, the hydrostatic bearing being a self-compensating beating mounted circumferentially about the shaft near the end surface and having a fluid pressure supply groove providing fluid for the self-compensating bearing, the bearing being mounted upon an axially extending member one end of which serves as part of the end surface of the shaft and the other end of which serves as a reverse thrust surface, along with means for flowing fluid from the pressure supply groove radially across said reverse thrust end surface and through an opening extending axially between the reverse thrust end surface, and the end surface of the shaft, opposing the thrust force with pressure proportional to the axial position of the shaft and related to the degree of fluid compensation in the bearing.
摘要:
A system for moving an object to a desired position quickly, but while minimizing oscillations, using an actuator and a flexural transmission. The system measures to positions of the object and the actutator, and then determines the differences between these positions and the desired final positions. This information is used to determine when and how much the actuator should jerk back on the object. The flexural transmission can include a tensioned wire that is oriented in the direction of movement of the item.
摘要:
A linear recirculating roller bearing is disclosed where the rollers traveln an inclined groove where the non-loading rolling groove is parallel to the loading roller groove. In the preferred embodiment four sets of rollers are provided which are able to bear loads from any direction. The angle of the rollers with respect to the bearing is dependent on the materials used and the overall dimensions of the system so that the bearing gap expands, due to temperature changes, at the same rate as the rollers.
摘要:
A double-handed, robot end effector or gripper which can be used for movingnd positioning machine parts. The gripper is elongate and symmetric about its longitudinal axis, having a first and a second set of hands extending in each of the two transverse directions. Each hand has a removable finger and is positioned about an accurately repeatable midpoint. The hands are mounted on and are moved about the longitudinal plane by a ball screw which is rotated by either an electric motor or an air driven motor through gears located at one end.