Abstract: A dust or chip collection and diversion system is provided for a device having a cutting tool for performing a working operation on a workpiece. The position and orientation of the dust-receiving or dust-collecting opening remains constant with respect to the cutting tool regardless of the position or configuration of the device, the device having a movable blade or other cutting tool, thus greatly enhancing the dust collection effectiveness in any of a number of operational configurations. Such position and orientation of the dust-receiving opening is also independent of the movement or position of any adjustable or movable guard or workpiece-supporting fence.

Abstract: The invention relates to a method of manufacturing a replication master tooling article suitable for manufacturing replicated articles by machining a substrate surface with laser energy to produce a plurality of geometric structures in the substrate, the geometric structures having side surfaces extending from the surface of the substrate into the substrate.

Abstract: The present invention relates to a precompression pump with a feature to evacuate air trapped in the pump chamber to thereby assist in priming the pump. In particular, the present invention relates to a precompression pump which uses mechanisms to create gaps of very small size to bridge two seals on a pump piston, in a way that the small size of the gaps allows the passage of trapped air, but because of the viscosity of any liquid in the pump chamber does not allow the passage of liquid past the seals on the pump piston. Flats which define a chord of the inner circumference of the cylinder wall can be used to create the appropriate gaps. In addition, the core creating the inner circumference can be photochemically etched to provide a roughened surface with asperities which create the appropriate gaps. The priming mechanisms preferably create air gaps around both seals of the pump piston.

Abstract: A mushroom-type hook strip that can be used in a hook-and-loop mechanical fastener. The hook strip includes a homogeneous backing of thermoplastic resin and, integral with the backing, a high density array of hooks including stems projecting from the backing and circular disc shaped heads at the ends of the stems opposite the backing. The large number, small size, and shape of the heads on the hooks allow them to engage the fibers in conventional types of fabrics and non-woven materials that are not normally used as the loop portions of hook and loop fasteners.

Abstract: The apparatus for testing electrical switch matrices includes a potential selector (30) for receiving and applying a voltage (28) to a predetermined input (101-106) of each of the plurality of electrical switches (12), a controller (15) for receiving and applying signals to the plurality of electrical switches (12), and a combiner (36) responsive to an output (22) of each of the plurality of electrical switches (12). The controller (15) selects electrical paths (16) associated with each of the switches (12) which are in communication with the predetermined inputs (101-106) of each of the switches. The output (38) of the combiner (36) indicates whether at least one of the selected electrical paths (16) failed.

Abstract: The present invention relates to an abrasive article comprising:(a) a flexible substrate having a front side and a back side;(b) at least one layer of abrasive grains bonded to said front side of said substrate by means of a make coat;(c) optionally one or more additional coats selected from the group consisting of a size coat, a supersize coat, a saturant coat, a presize coat, and a backsize coat;wherein at least one of said make, size supersize, saturant, presize, and backsize coats comprises a maleimide binder. The invention also relates to a method of making the abrasive articles.

Abstract: The electrophoresis method of the present invention employs a media which contains uniformly dispersed liposomes of phospholipid, or combinations of phospholipid and neutral lipid, which contain chromogenic materials or dye precursers. After electrophoresis of a test sample, the liposomes are lysed and the chromogen or dye material released. The chromogen or dye can be any signal producing substance including a chromogenic agent, and enzyme, a fluorogenic agent, or a chemiluminescent agent, but a detectable signal occurs only where the staining material is in close proximity to specific enzymes, effectors, analytes, or other color-inducing agents which have migrated through the gel during electrophoresis.

Abstract: Disclosed is an improved water-based hydraulic fluid composition which comprises an aqueous composition having a viscosity of at least 5 centistokes at 40.degree. C. which contains up to about 95 percent by weight of water, at least 0.1 percent by weight of a carboxylic acid lubricity agent, and an effective amount of an anti-wear additive; wherein the improvement comprises:said anti-wear agent comprising the combination of:(a) mono-, di-, and trihydroxy-substituted aromatic non-carboxylic acid compounds; with(b) substituted aromatic compounds, wherein the substituents comprise mono-, di-, and trinitro groups.

Abstract: A rectilinear scanner for detecting radiation in a plurality of channels utilizing a collimator. Each of the channels receives information from a different portion of the collimator. Information separately received is separately massaged and later collated to present a common image. The information is processed by apparatus in a data processing system. This system has means for massaging analog signals corresponding to gamma radiation counts. This system has means for converting such analog signals to digital signals. This system has means interfacing the digital signals into an address register that communicates directly via data busses to core memory of a central processing unit by cycle stealing. This system has means deriving clinically significant information by computation on the resultant digital data. This system has means storing, retrieving, and displaying the resultant digital data and the resultant derivations therefrom collectively.