Abstract: The invention relates to a fiducial marker having a marking grid that is used to correlate and view images produced by different imaging modalities or different imaging and viewing modalities. More specifically, the invention relates to the fiducial marking grid that has a grid pattern for producing either a viewing image and/or a first analytical image that can be overlaid with at least one other second analytical image in order to view a light path or to image different imaging modalities. Depending on the analysis, the grid pattern has a single layer of a certain thickness or at least two layers of certain thicknesses. In either case, the grid pattern is imageable by each imaging or viewing modality used in the analysis. Further, when viewing a light path, the light path of the analytical modality cannot be visualized by viewing modality (e.g., a light microscope objective).

Abstract: The invention relates to a fiducial marker having a marking grid that is used to correlate and view images produced by different imaging modalities or different imaging and viewing modalities. More specifically, the invention relates to the fiducial marking grid that has a grid pattern for producing either a viewing image and/or a first analytical image that can be overlaid with at least one other second analytical image in order to view a light path or to image different imaging modalities. Depending on the analysis, the grid pattern has a single layer of a certain thickness or at least two layers of certain thicknesses. In either case, the grid pattern is imageable by each imaging or viewing modality used in the analysis. Further, when viewing a light path, the light path of the analytical modality cannot be visualized by viewing modality (e.g., a light microscope objective).

Abstract: The present invention is for a method of fabricating a high aspect ratio, freestanding microstructure. The fabrication method modifies the exposure process for SU-8, an negative-acting, ultraviolet-sensitive photoresist used for microfabrication whereby a UV-absorbent glass substrate, chosen for complete absorption of UV radiation at 380 nanometers or less, is coated with a negative photoresist, exposed and developed according to standard practice. This UV absorbent glass enables the fabrication of cylindrical cavities in a negative photoresist microstructures that have aspect ratios of 8:1.

Abstract: The present invention is for a method of fabricating a high aspect ratio, freestanding microstructure. The fabrication method modifies the exposure process for SU-8, an negative-acting, ultraviolet-sensitive photoresist used for microfabrication whereby a UV-absorbent glass substrate, chosen for complete absorption of UV radiation at 380 nanometers or less, is coated with SU-8, exposed and developed according to standard practice. This UV absorbent glass enables the fabrication of cylindrical cavities in SU-8 microstructures that have aspect ratios of 8:1.

Abstract: A tubeless cased telescoped ammunition is disclosed. The ammunition is ignited and a sequenced ignition is achieved. The ammunition includes a sealing coating for delaying ignition of the main propellant. A sealing ring may also be used to sequence and delay the ignition.

Abstract: A cased telescoped ammunition with a perforated forward control tube in which the main propellant gas and flame front ignites a propellant surrounding the tube through the perforations. Seals form annular segments of consolidated propellant surrounding the tube separated from each other and the main propellant charge. These seals prevent gas and flame front propagation from the main or rearmost charge of propellant, except through the control tube perforations or ports which have been passed by the obturator.

Abstract: This invention comprises a puller sabot characterized by a forward stabilizing disk, a rear stabilizing disk and a mid section. The obturator is located on the forward stabilizing disk. The rear stabilizing disk has a plurality of openings extending longitudinally through the rear stabilizing disk such that propellant may be located forward of the rear disk and ignited and vented. The sabot surrounds the peripheral mid section of a long rod fin stabilized projectile and guides the sub-projectile through a rifled barrel.

Abstract: A low dispersion discarding sabot projectile comprising: a full caliber cylindrically shaped pusher having a cup-like forward facing recess concentric with the external surface of said pusher, a circumferential groove for receiving a rotation ring, said groove being positioned in approximate radial register with a rear surface of said recess, and a concave recess in the rear end face of said pusher; a cylindrically shaped subcaliber projectile having: (i) a rear portion adapted to be inserted into said forward facing recess of said pusher, (ii) a main body portion projecting forward from said pusher, and (iii) a nose portion; and a discarding sabot of lightweight frangible material disposed around said main body portion, the forward portion of said sabot being spaced radially away from the external surface of said nose portion.

Abstract: A photopolymerisable composition particularly useful as a solder resist composition able to withstand molten solder without loss of adhesion, pitmarks or shrinkage and for forming durable coatings on substrates generally is obtained by a combination of a photoinitiator, a polythiol acting as a chain modifier, and a polymer having hydroxy terminated chains capped by acrylate groups connected to the chains via the residue of a polyisocyanate.

Abstract: Composite electron microscope grids for support of specimens and suitable for energy dispersive X-ray analysis are fabricated from an etched surfaced mold which is sacrificed after the grid casting. Preferably, the mold is made from a material with a different solubility or chemical resistance than the composite material forming the grid so that the mold can simply be dissolved after use. The mold itself is preferably etched using a photoresistive process for precisely etching the desired grid structure into the mold material. The mold process for making the grid can be utilized for molding other types of micro-components.

Abstract: A percussion type projectile nose fuse includes a generally conical fuse body having a cavity open only to the base thereof. Disposed within the cavity is a firing pin, a sleeve and a ball igniter. A fuse tip portion is defined by a weakened region, open to the fuse body exterior surface, which ruptures upon tip impact with a target, thereby causing at least partial rearward penetration of the tip into the cavity. Upon such tip penetration, the tip severs a flange on the firing pin by driving it against the sleeve, and propells the firing pin rearwardly along the sleeve and into engagement with the ball igniter. By forming the sleeve substantially longer than the length of the firing pin, a time delay before ignition, equal to the firing pin transit time, is provided. A forward opening recess formed in the apex of the tip, with a thin deformable wall thereabout, provides shock absorption so that accidental rupture of the weakened region does not occur during normal handling and loading of the projectile.

Abstract: A composite electron microscope grid for support of specimens and suitable for energy dispersive X-ray analysis is fabricated from a low atomic number composite material comprising a polymer formed from a combination of some or all of carbon, hydrogen, oxygen and nitrogen, to which carbon, preferably in the form of carbon fibers is blended. The dispersed carbon in the polymer strengthens the grid and greatly increases the electrical and thermal conductivity of the resultant grid so as to minimize the otherwise present electron charge buildup in the vicinity of the grid during the electron bombardment associated with the X-ray analysis. The high thermal conductivity of the grid minimizes the temperature rise in the grid and specimen under analysis; thereby ensuring a stable specimen image.The composite grids according to the present invention are fabricated from an etched surfaced mold which is sacrificed after the grid casting.