Abstract: Presented is an end-effector for grasping integrated circuit wafers with a talon-like device that effectively grips an arcuate peripheral “free zone” of the wafer-without effecting contact of the wafer in a manner to contaminate it.

Abstract: Apparatus and a method for detecting imbalance and for identifying rotors in centrifuges is disclosed. An accelerometer measures the vibration of a rotating drive system as it accelerates from rest to a predetermined speed, and a signal processing system monitors changes in the magnitude of measured vibration energy. The processing system determines the power spectrum density of the measured values and from this the frequency spectrum and the total energy spectrum of the measured vibration are determined. These values may be used to provide an identifying profile which can be used as a reference for later identification of drive systems and rotors in operating systems, and for monitoring and controlling such operating systems.

Abstract: Presented is an integral assembly (2) of hollow tubes and seal caps (16) therefor arranged in an elongated aligned and integral assembly in which multiple tubes (1) each symmetrical about a longitudinal axis (3) and having a closed end (12) and an open end (6) are formed in side-by-side spaced relationship in a linear series in which adjacent tubes are integrally interconnected by a tether (13) to form an elongated strip (2). A multiplicity of seal caps (16) corresponding in number to the aligned series of tubes are independently, angularly and integrally flexibly connected to associated tubes. The seal caps, when in tube-open condition, are each symmetrical about an axis (17) parallel to the axes of the tubes and correspond in spacing and in number to the tubes. A hinge strap (14) is provided integrally interposed between each tube and the associated seal cap.

Abstract: Presented is a segmented spherical display device including at least four embodiments. The segmented spherical body of the display device may be, but need not be, transparent, is segmented in specific ways unique to different segment configurations to provide multiple flat surface portions or facets, each defined by at least two straight edges or lines of demarcation and one arcuate edge subtending the angle defined by the two straight edges, and to which or on which facets may be detachably mounted selected visual indicia or images for visual display. In two of the embodiments, the segmented spherical bodies are each segmented to provide two bodies that are halves of a sphere, that are mirror-images of one another and interengageable to form a segmented sphere. In the other two embodiments, the respective spherical bodies are each segmented to provide four quarter-sphere segment portions or bodies that are mirror-images of one another.

Abstract: Presented is an integral assembly (2) of hollow tubes and seal caps (4) therefor arranged in an elongated aligned and integral assembly in which multiple tubes (1) each symmetrical about a longitudinal axis (3) and having a closed (32) end and an open end (6) are formed in side-by-side spaced relationship in a linear series in which adjacent tubes are integrally interconnected by a tether (36) to form an elongated strip (2). One end of the strip (2) of open-ended tubes is integrally connected to an elongated seal cap strip (43) that forms an integral extension of the tube strip and which includes a linear series of integral, spaced seal caps (42) each symmetrical about an axis (44) parallel to the axes of the tubes and corresponding in spacing and in number to the tubes. The tube (1) on one end of the tube strip (2) is integrally connected to its corresponding seal cap (42) on the seal cap strip (43).

Abstract: One of the most popular ways of gaining access to a locked premise is through forced entry of a door assembly. Presented is a door assembly incorporating a system of components cooperating with a door assembly to increase resistance to forced entry through such door assembly. Forced entry is generally defined as being an unauthorized entry accomplished by the use of force upon the physical components of the premises. Such forced entry usually takes the form of battering on the door adjacent to the door lock assembly, or adjacent to the center hinge of the door. Presented is a door assembly incorporating a reinforcement plate for the door lock assembly, a strike plate of novel design cooperating with the door assembly to strengthen the union between the door lock assembly and the lock jamb of the door frame, and a reinforcement plate associated with one or all of the hinges to reinforce the union between the hinges and the hinge jamb.

Abstract: Presented is an intraocular lens structure fabricated from a material that is hydrophilic, which is sufficiently flexible when hydrated to be rolled or bent into a compact formation for insertion into the eye through a much smaller than usual incision or opening, and which may be implanted either in the capsular bag from which the natural lens has been aspirated, or which may be supported in the posterior chamber sulcus, or in the anterior chamber angle. The lens structure, in one aspect of the invention, is specially packed in a tubular container that retains the hydrated lens structure conformed into a minimum diameter configuration for ease of delivery into the eye, and which, in another aspect of the invention, embodies a package that includes means for delivering the hydrated lens into the eye.

Abstract: This invention provides an improved electronic air filter comprising fibrous material such as glass fibers which are polarized by insulated screens. The screens are charged with high voltage provided by a power supply which is an integral part of the filter unit. This arrangement provides a filter with extremely low ozone emission.