Abstract: A secure coiled roll paper product package using a hang card of resilient, tear resistant substantially flat stock with a pair of slots and integral arbor slit substantially in its center portion to form two contiguous halves that may be deflected to mount the coiled roll, the slots being dimensioned in relation to the coil to enable mounting of the coiled roll but substantially preventing removal of the coiled roll without tearing or otherwise defacing the card.

Abstract: A safety medical device having a sharpened needle is provided. After use, the needle is retracted so that the contaminated needle is shielded to prevent inadvertent contact with the contaminated needle. In one embodiment, the device includes a barrel and a plunger that is slidable within the barrel. The sharpened needle is operable between a projecting position and a retracted position. In the projecting position, the needle projects forwardly from the front end of the barrel. In the retracted position, the needle is shielded to prevent inadvertent contact with the needle. When the plunger is displaced forwardly to expel fluid from the barrel, the plunger actuates retraction so that the needle is automatically retracted after use. The needle may be included as an element of a needle assembly that is connectable with the barrel. The needle assembly includes a spring for biasing the needle toward the retracted position and a connector for attaching the needle to the barrel.

Abstract: A pre-filled injection device having a retractable needle with a sharpened tip for penetrating the skin of a patient for administering medicinal fluids is provided. The pre-filled injection device of the present invention allows the needle to be manually retracted, thereby reducing the risk of transmission of various pathogens, most notably human immune virus (HIV), to infected personnel, due to an inadvertent needle stick. The present pre-filled injection device has a hollow housing which receives a pre-filled cartridge containing medicinal fluids. A needle retainer initially holds a needle projecting forwardly from the hollow housing. The rear end of the needle pierces the pre-filled cartridge when sufficient pressure is applied to the end of the pre-filled cartridge to advance it in the forward direction. A plunger is slidably displaceable within the housing. A latch member is operable in a latched position to prevent forward movement of the plunger.

Abstract: Needle retraction mechanism for a medical device comprising a spring housing at the forward end of the device having an aperture for aligning a needle therein such that the needle extends forwardly out of the device. A spring is positioned concentrically about the needle and compressed within the spring housing. The needle is held within the spring housing against the expansive force of the spring by a needle retainer. The needle retainer forms the rear of the spring housing and comprises a plurality of axially extending resilient fingers. An actuating member, comprising a cavity for receiving the needle, is slidably positioned within a barrel of the device. The actuating member further comprises a forward facing shoulder surface formed to mate with rearward facing angled surfaces on the fingers.

Abstract: A catheter insertion device is provided for inserting an over-the-needle catheter. The device includes an insertion needle that is retractable into the housing of the device after use to prevent exposure to the contaminated needle. A needle retainer releasably retains the needle in an extended position against the rearward bias of the biasing element. The needle retainer engages the hub of the catheter so that when the catheter is removed from the insertion device, the needle retainer automatically releases the needle. The biasing element then propels the needle rearwardly into the housing of the device.

Abstract: A needle-bearing device for injecting medicinal fluid from a pre-filled cartridge is provided. After use, the needle is retracted into the body of the device to prevent inadvertent contact with the sharpened end of the needle. In one embodiment, the invention provides a manually actuable button that effectuates retraction of the needle after use. In another embodiment, retraction is effectuated automatically after the injection is complete.

Abstract: An electron beam source provides beam focusing by placing magnets under the crucible. The location of the magnets, operating in conjunction with the remaining magnetic and electromagnetic structure, permits varying sizes of crucibles to be used without redesign of the remainder of the electron beam source.

Abstract: A needle retraction mechanism for a needle bearing medical device is provided. The needle retainer selectively retains the needle in a projecting configuration in which the sharpened tip of the needle projects outwardly from the device. The needle retaining mechanism has an axial projection configured to provide at least one finger, and preferably a plurality of separable fingers that are joined together to form a bore.

Abstract: A highly dynamic piezo-electric drive mechanism for use wherever stringent requirements are placed on resonant frequency, positioning time, actuation speed or acceleration, is provided and in which at least two piezo-electric double stack drives are rigidly mounted on their first base surfaces and act against a toggle lever on their second base surface on opposite sides of and equidistant from the pivot axis of the toggle lever, and a control applies a phased electrical voltage to the piezo-electric stacks in such manner that the double stack drives operate in a push-pull mode.

Abstract: A method and a device for particularly rapidly producing wells (18) in the surface of a rotating rotogravure cylinder (2) by a pulsed laser beam (13), which is deflected and directed via an optical lens (7) onto the surface of the rotogravure cylinder (2) to be processed. The power of a single laser beam pulse is adjusted in such a way that it is sufficient for removing the maximum volume needed for a well (18). Furthermore, the laser beam (13) is deflected by an optoacoustic modulator (8) by diffraction onto the optical axis of the lens (7), and the individual laser beam pulses are controlled in their pulse power by the same modulator (8) in accordance with the volumes of the wells to be formed.

Abstract: A device for engraving intaglio cylinders and similar printing forms having an engraving tool which, together with a sensing member sensing the surface of the printing form to be engraved, is mounted in a holder movable relative to the surface of the printing form. The sensing member is a distance measuring member which contactlessly measures the distance from the surface of the printing form. On the basis of the distance measured from the distance-measuring member, the holder is adjusted relative to the surface of the printing form by an adjusting element, for maintaining a predetermined tool distance between the engraving tool and the surface to be engraved.

Abstract: A medical device having an automatically retractable needle is provided with a safety latch for preventing premature or inadvertent retraction of the needle. In a preferred embodiment, the medical device comprises an intravenous catheter or guide wire insertion device having a nose portion that is axially adjustable during assembly to provide a uniform needle length projecting from the forward end of the device.

Abstract: A shaft bearing for mounting the shaft ends of a rotating workpiece to be machined, especially an intaglio printing cylinder, has a rotatably mounted clamping chuck clamping the shaft end and having a hollow clamping head. The clamping head has gripping parts mounted so as to be radially adjustable relative to the longitudinal axis of the clamping head. Each gripping part is mounted rotatably about a pivot axis extending parallel to the longitudinal axis, and is guided, in a region distant from the pivot axis, along an arcuate guide track extending around the longitudinal axis. Each gripping part is configured so as to extend at a decreasing distance from the longitudinal axis and being movable relative to the guide track for the purpose of clamping the shaft end.

Abstract: A device for transmitting intravenous fluids between a patient and an external reservoir is provided with a retractable needle for penetrating an intravenous fluid port or for directly penetrating the skin of the patient. The retractable needle renders the device safe for disposal after use. The device comprises a housing for holding the needle in a projecting configuration, a needle retainer for holding the needle in the projecting configuration against a rearward bias exerted by a spring, and an actuating member slidably positioned in the housing for releasing the needle retainer from the needle. An intravenous tubing connector is positioned to extend from the housing to provide a fluid connection between the needle and the external reservoir.

Abstract: A rotating all metal sealed fluid delivery system for supplying fluid to an apparatus, such as an electron beam source assembly, in an UHV environment includes a housing with fluid inlet and outlet ports therethrough, opposed fluid inlet and outlet lines, an inlet and outlet bellows within the housing, and a turntable mounted in an aperture in the housing for attachment to a rotatable spindle of the apparatus. A ultra high vacuum compression gasket forms an UHV seal between the spindle and the turntable. The bellows are attached at first ends to the inlet and outlet ports, and at opposite ends to the opposed inlet and outlet lines extending to the rotatable apparatus, through the spindle and the turntable into the housing. The bellows are coiled within the housing and separated by a non-abrasive plate. Following attachment to the ports and lines, the entire length of each bellows remains within a single plane during rotation along the same axis as the axis of rotation of the apparatus.

Abstract: An electron beam source assembly includes a water cooled crucible positioned substantially flush with the top of the block. A magnet is attached to each long sides of the rectangular block to establish parallel opposed pole magnets with the crucible therebetween. A smaller magnet is attached to each end of each longitudinal magnet to form a second and a third parallel magnet pair. The six magnets produce plano-convex magnetic field lines above the crucible, and additional plano-convex field lines of increased field strength extending outwardly from the end of the block having the four magnets. A magnetic base plate provides a low reluctance path to decrease magnetic flux at the crucible.

Abstract: A low vibration, high cycle, high vacuum gate valve structure comprises a high vacuum housing defining a passageway, a valve actuator for providing a rectilinear displacement force, a translatable and pivotable gate valve assembly actuated by the valve actuator for translating from a fully retraction position outside of the passageway to an initial closure position adjacent to a fixed seal surface provided within the housing thereby blocking off the passageway. The gate valve assembly defines an angled sealing surface relative to an oppositely facing angled sealing surface of the fixed seal but displaced by a predetermined angular displacement at the initial closure position.

Abstract: Formed in a basic body (13) connected to a drive spindle is a supporting surface (15a) which is at right angles to the rotational axis (10a) of the basic body (13) and on which one end face (16a) of a rotatable setting disk (16) rests. The other end face (16b) of the setting disk (16) is inclined relative to the first mentioned end face (16a). Resting on the setting disk (16) is a cutter holder (17) in which a cutter (18) is held. The cutting edge (19) of this cutter (18) runs approximately in the radial direction. The inclination of the cutting edge (19) of the cutter relative to a plane disposed at right angles to the rotational axis (10a) can now be changed by turning the setting disk (16), as a result of which the desired quality of the circumference of the machined gravure cylinder can be achieved without the cutting edge (19) of the cutter needing to be ground very accurately.

Abstract: A suction attachment for a hair grooming clipper includes a suction head having a vacuum relief port and a flexible sealing lid for covering the port. The relief port communicates between an internal air flow passage in the suction head and the exterior of the suction head. The sealing lid is movable by a user's finger to regulate the degree of relief of the vacuum provided by the port. The suction head has a flow constriction defined in the air flow passage midway between a front inlet and a rear outlet and proximate the location of the relief port such that regulation of vacuum relief occurs at the region of the passage where the air pressure is highest and air velocity is lowest. Also, a hollow tubular extension at one end can be inserted in the relief port when the port is completely open to prevent clogging of the open port by hair entering the port from the exterior of the suction head.

Abstract: A motion transmitting mechanism, for use as a sample manipulating device or wobble stick, is provided for transmitting manual movements through the wall of a vacuum vessel. The mechanism includes a central mounting flange for securing the mechanism in vacuum sealing arrangement with the vacuum vessel through a suitable orifice formed in the wall thereof. A spherical ball joint is moveably journalled within the mounting flange to enable the mechanism to be moved angularly relative to an axis perpendicular to the vacuum vessel wall throughout a predetermined range of limited angular displacement. A coaxial shaft assembly comprises an outer tube and a central shaft, the assembly being axially slideable through a central opening of the ball joint means to provide axial movements within the vacuum vessel throughout a predetermined range of limited axial displacement.