Abstract: A personal verification system comprising a user device which is adapted to generate a time varying, multi-character, nonpredictable code; a verification device; a mechanism for permitting the user to communicate the nonpredictable code generated by the user device at a given time to the verification device in a manner such that a biocharacteristic of the user is communicated with each code character; the verification device including a mechanism for generating the same nonpredictable code as is appearing at the user device at the given time, a mechanism for converting each character of the generated nonpredictable code to an indication of the character which includes the biocharacteristic; and, a mechanism for comparing the communicated characters including biocharacteristics with the character indications including biocharacteristic, and a mechanism for indicating verification if the compared characters, including the biocharacteristic, match in a predetermined way.

Abstract: A method of using a single self-supporting, resilient, expandable, contoured tube to form either of two possible hat configurations; the tube having a honeycombed expandable configured encircling wall defining first and second head receiving openings toward respective first and second ends of the wall and spaced along a defined length of the wall; the wall being configured along its length so as to define a first configuration towards the first opening different than a second configuration toward the second opening; the method comprising: selecting one of the first and second openings to be pulled over the head of a user; and pulling the selected opening over the head of the user for a portion of the length of the tube while expanding the portion to form a first hat configuration an appearance different from an appearance and configuration formed when the second opening is pulled over the head of the user and expanded.

Abstract: Apparatus for preventing fluid flow upon decoupling of first and second fluid delivery tubes, wherein the first fluid delivery tube includes a reception outlet and the second fluid delivery tube includes an insertion outlet for insertion and coupling within the reception outlet, the reception outlet including a pair of arms pivotable outwardly from the reception outlet for decoupling the outlets and pivotable inwardly for coupling the outlets, one of the fluid delivery tubes including a valve for opening and closing the one tube to fluid flow, the apparatus comprising a pair of ears mounted to the one tube including the valve, the valve including a handle pivotable between valve open and valve closed positions, the ears being pivotably mounted to the one tube including the valve for pivotable movement between a position interfering with pivoting of the arms and a position of noninterference with pivoting of the arms, the ears being connected to the handle of the valve such that when the ears are pivoted to th

Abstract: A flatware separating apparatus comprising a track having a top surface for receiving and delivering different items of flatware along a selected path; a mechanism for contacting selected items of the flatware at a selected point along the path of the track and pushing the selected items off the surface of the track and allowing other selected items of the flatware to remain on the surface; and a mechanism for further separating the selected items of flatware pushed off the surface of the track.

Abstract: A conveyor apparatus for trays or the like comprising a framework for supporting a conveyor path along which the trays are to be conveyed; the framework having side rails for aligning the trays in a uniform orientation along the path of the apparatus; a plurality of freely rotating rollers mounted on the framework between the side rails; the rollers being mounted on the framework in serial spaced relationship such that the uppermost tangential surfaces of successive rollers lie in a continuous plane defining a support surface for the trays; a plurality of wheels mounted to the framework between the rails, the wheels having whiskers protruding from the circumference thereof; the whiskers being bendable from a position in which the whiskers normally protrude from the wheels and resiliently reformable back to the position in which the whiskers normally protrude; the wheels being mounted serially along the length of the conveyor path and between the rollers such that the whiskers extend above the continuous plane

Abstract: An improved safety control mechanism for a pulley apparatus of the type comprising main support bars having at least two wheels mounted at their centers a spaced distance apart between the bars and a swing arm assembly pivotally connected to the bars at a point between the centers of the wheels, the swing arm assembly comprising a pair of arms straddling opposing surfaces of the bars and pivotally connected to the bars by a main pivot mechanism extending through complementary aligned apertures in the arms and the bars, the improvement comprising a second bolt mechanism extending through a second complementary aperture disposed in either the bars or the arms and a slot disposed in the other of the bars or the arms; the second aperture or the slot provided in the bars being disposed in the second distance between the center mountings of the wheels; the second aperture or the slot provided in the arms being aligned with the other of the second aperture or the slot provided in the bars with the arms and the bars

Abstract: Apparatus for converting a swimming pool into a skating rink and preserving the structural integrity of the pool, the pool comprising a water basin having a rim extending around the top edge of the basin, the basin being filled with water up to a predetermined level below the rim, the apparatus comprising a plurality of impact resistant cornices overlying the rim and extending around the circumference of the pool in sequential array; each cornice comprising a top plate overlying the top edge of the pool and a flange plate attached to and extending the length of the forward edge of the top plate, the flange plate extending downwardly into the basin a predetermined level below the surface of the water within the basin; the cornices being sequentially arranged around the rim of the pool such that the left side of the flange plate of each cornice is aligned substantially parallel to and closely adjacent to the right side of the flange plate of each immediately adjacent cornice.

Abstract: An apparatus and method for synchronizing the time definition of the dynamic variables by (a) calculating a first non-predictable code according to a secret predetermined algorithm, the algorithm generating the first non-predictable code on the basis of a first dynamic variable and a unique static variable; (b) automatically defining the first dynamic according to a first interval in which the static variable is input into the algorithm, the first interval of time having a predetermined duration; (c) calculating two or more second non-predictable codes according to the predetermined algorithm, the algorithm generating the second non-predictable codes on the basis of the two or more second dynamic variables and the unique static variable, (d) automatically defining the two or more second dynamic variables according to two or more cells of a second interval of time in which the static variable is input into the algorithm of the second computer, the second interval of time comprising a central cell of time havin

Abstract: Apparatus and method for use in conjunction with an X-ray apparatus, for filtering scattered irradiation and enhancing recordation of unscattered irradiation transmitted through a subject exposed to an X-ray analysis beam. The apparatus includes a grid mechanism including filtration strips which filter scattered irradiation and obstruct unscattered irradiation from detection, a mechanism for recording an analog image of the subject from the detector, a mechanism for converting the analog image to an equivalent digital image, and a mechanism for reconstructing the image as if the unscattered irradiation absorbed by the grid were not obstructed from detection.

Abstract: A device for clamping the edge of a diagnostic table top comprising a clamping block mechanism having an inside face for abutting the side edge of the table top; a first jaw mechanism connected to the clamping block mechanism having an inner face for abutting one of the top or the bottom surfaces of the table top; a second jaw mechanism pivotably connected to the clamping block mechanism having an inner face for abutting the other of the top or bottom surfaces of the table top; the second jaw mechanism being connected to the clamping block mechanism by a link mechanism and a shaft mechanism, wherein the link mechanism is pivotably connected to the clamping block mechanism and pivotably connected to the second jaw mechanism and wherein the shaft mechanism is movably mounted in the clamping block mechanism such that when the shaft mechanism is moved, the second jaw mechanism articulates between a clamping position and an open position.

Abstract: A portable hand held computing and indicating device for use in a verification system of the type wherein a first non-predictable code is generated at a first mechanism in accordance with a predetermined algorithm in response to both a unique static variable and a dynamic variable and a second non-predictable code is generated at a second mechanism in accordance with the predetermined algorithm in response to both the unique static variable and a second dynamic variable which corresponds to the first variable. The non-predictable codes are compared at the second mechanism to effect verification. The device forms the first mechanism and includes a processor having the algorithm preprogrammed therein and a means for storing a static variable which is unique for each device. The device also includes a means for generating a time varying dynamic variable which is substantially the same as that generated at the second mechanism at a given instant of time.

Abstract: A device for clamping the edge of a diagnostic table top includes a C-shaped clamping block which engages the side, top and bottom surfaces at the edge of a table. A fixed jaw engages one of the top and bottom surfaces and an articulatable jaw engages the opposite table surface. The articulatable jaw includes an outer fixed plate and an inner movable plate connected by a pair of dual pivot links at opposite ends of the plates and an activating mechanism including an axially-rotatable vertical shaft with an offset pin. Rotation of the shaft by a lever arm attached thereto causes the pin to push horizontally on the inner plate. The dual pivot links transform the horizontal motion from the pin to a combined horizontal and vertical motion of the inner plate with respect to the outer plate about a circular arc.

Abstract: An apparatus for tilting a patient supported on a diagnostic table and simultaneously maintaining a selected isocenter of the patient at a selected fixed point in space comprising a table for supporting the patient within an examination zone of a diagnostic apparatus; a vertical carriage mechanism connected to an end of the table for raising and lowering the end of the table through a predetermined range of vertical travel; a tilt pivot connecting the end of the table and the vertical carriage mechanism, for supporting the table and tilting through an arc of at least about 10 degrees; a horizontal leg mechanism movably mounted to the vertical carriage mechanism for moving the vertical carriage mechanism and the table through a predetermined range of horizontal travel; the vertical carriage mechanism being movably mounted on the horizontal leg mechanism; the horizontal leg means being movably mounted on an overhead arm mechanism; wherein the vertical carriage mechanism is movable along a vertical travel and th

Abstract: A high sensitivity fluorescence and absorption detector comprising an elongated substantially cylindrical flow cell connected to and receiving the outflow of a fluid chromatography column; a mechanism for projecting a fluorescence generating beam of electromagnetic energy along on an axis substantially coincident with the axis of the flow cell; the flow cell including an elongated substantially cylindrical midsection housed by a tubular capillary transparent to the fluorescent radiation generated by the beam; a fluorescence integrating sphere completely surrounding the midsection of the capillary, the integrating sphere collecting at least about 3 pi steradian of the fluorescent radiation emanating through the capillary tube and into the sphere; the beam being projected to enter one end of the cylindrical flow cell, focus at about the center point of the axis of the cylindrical midsection, emanate through the other end of the flow cell and impinge upon a photodetector for detecting the portion of the beam whi

Abstract: Apparatus and method for use in conjunction with an X-ray apparatus, for filtering scattered irradiation and enhancing recordation of unscattered irradiation transmitted through a subject exposed to an X-ray analysis beam. The apparatus includes a grid mechanism including filtration strips which filter scattered irradiation and obstruct unscattered irradiation from detection, a mechanism for recording an analog image of the subject from the detector, a mechanism for converting the analog image to an equivalent digital image, and a mechanism for reconstructing the image as if the unscattered irradiation absorbed by the grid were not obstructed from detection.

Abstract: An x-ray tube contains a plurality of filaments each with an associated focus cup control to allow it to change rapidly between discrete emission intensities. The cathode structure of the x-ray tube is constructed so that each filament is located in a separate focus cup structure. However, the focus cup structures are electrically isolated so that a separate bias potential can be applied to each focus cup structure. By separately biasing each focus cup structure, the emission from each of the filaments can be controlled independently.

Abstract: An apparatus for converting a swimming pool into a skating rink and preserving the structural integrity of the pool, the pool comprising a water basin and a ledge extending around the top edge of the basin, the ledge protruding inwardly over the edge of the basin, the basin being filled with water up to a predetermined level below the ledge, the apparatus comprising a sheet completely overlying the ledge and the open top of the basin and extending downwardly into the basin to at least the predetermined level of the water in the basin such that the bottom of the sheet contacts essentially the entire surface of the water in the basin below and inside the ledge; the sheet extending downwardly into the basin and being filled above its top surface with water up to a predetermined level below the ledge; a plurality of impact resistant cornices overlying the sheet and the ledge and extending around the circumference of the pool in sequential array; each cornice comprising a trapezoidal plate overlying the ledge and

Abstract: A high voltage power supply for an x-ray tube operating from a single phase alternating current source and including a phase shifter and/or solid state switch for providing first and second phase signals. Each of these signals or one of them are half-wave rectified. An output combining circuit provides for transformation to a high voltage while at the same time providing for additive combination of the signals from the half-wave rectifiers.