Abstract:
A phase matched thin film waveguide supportive of electromagnetic wave energy having angular frequencies is disclosed. In one embodiment, the waveguide includes a sequence of strips each of length A/2 in the direction of wave energy propagation and spaced apart from one another a distance A/2, A 2 pi / Delta Beta , where Delta Beta is the phase constant difference required to satisfy the relationship Beta 1 + Beta 2 Beta 3 + Delta Beta , Beta 1, Beta 2 and Beta 3 being, to a first order of approximation, the phase constants respectively of the wave energy. In other embodiments, the spaces between the strips are filled with materials whose nonlinear optical coefficient is either zero or different from the nonlinear optical coefficient of the spaced apart strips. The filling material''s index of refraction is substantially equal to that of the spaced apart strips.
Abstract:
A COMBINED HYDROGEN GAS SEPARATOR AND GENERATOR DEVICE COMPRISING A PAIR OF THIS PALLADIUM FILM MEMBRANCE ELECTRODES SEPARATED BY AN AQUEOUS HYDROXIDE ELECTRLYTE. ON APPLICATION OF AN ELECTROLYTIC CURRENT TO THE FILMS HEATED TO A TEMPERATURE OF AT LEAST 150*C., HYDROGEN IS SELECTIVELY TRANSFERRED THROUGH THE FIRST FILM. ACROSS THE BODY OF ELECTRLYTE AS PROTONIC HYDROGEN AND IS REGENER-
ATED AS DIATOMIC HYDROGEN ON THE OUTSIDE SURFACE OF THE SECOND FILM. THE IMPURITIES IN THE HYDROGE INLET STREAM COLLECT AT THE OUTSIDE SURFACE OF THE FIRST FIL,. THE CONCENTRATED IMPURITIES CAN BE SENT TO A DETECTOR FOR ANALYSIS. THE REGENERATED HYDROGEN CAN BE RECYCLED TO OPERATE A SEPARATOR UNIT SUCH AS A GAS CHROMATOGRAPHIC COLUMN.
Abstract:
A filter for removing particulate impurities from a fluid comprising a hollow, generally cylindrical housing having axial fluid channels along the inner surface and open opposite ends forming an inlet and an outlet for the filter. A plurality of annular, generally disc-shaped filter elements are tightly stacked within the housing. Outer edges of the filter elements bear on the inner surface of the housing and combine to form the axial fluid channels while inner edges of the filter elements combine to form a hollow inner core communicating with one of the open ends of the housing. Each filter element includes a plurality of radial channels between the axial channels and the hollow inner core and each channel includes means defining a lowvelocity pocket for trapping particulate impurities in a fluid flowing therealong. One end of the hollow inner core is blocked such that the path for fluid flowing between the inlet and outlet is through the axial and radial channels and the hollow inner core.
Abstract:
Apparatus for welding a continuous insulated wire to numerous terminal pins of a circuit board, including a solid central electrode which presses the wire against the terminal pin to rupture the insulation and then weld the wire to the pin. A concentric second electrode has a pair of openings on diametrically opposite sides of the center electrode for closely guiding the wire across the face of the central electrode, one of the openings being a hole that completely surrounds the wire and the opposite opening being a slot which is open at its bottom end. After each point of the wire is welded to a terminal pin, the electrodes are lifted and then initially moved parallel to the axis of the wire portion that is welded to the previous terminal pin, and only then is the direction of electrode movement changed to carry it to the next terminal pin.
Abstract:
QUATERNIZED, COSS-LINKAGE, INSOLUBLE COPOLYMERS OF UNSUBSUBSTITUTED AND SBSTITUTED VINYL PYRIDINES AND A DIHALO ORGAINC COMPOUNDS ARE SPONTANEOUSLY FORMED AT AMBIENT TEMPERATURE ON MIXING THE TWO MONOMERS IN BULK, IN SOLUTION OR IN SUSPENSION. THE AMOUNT OF CROSS-LINKING MAY BE VARIED ACCORDING TO THE COMPOSITION AND REACTION CNDITIONS. THE POLYMER PRODUCT EXHIBITS ION EXCHAGE CAPACITY AND UNDERGOES A REVERSIBLE COLOR CHANGE FROM BLACK AT A PH ABOVE 7 TO YELLOW AT A PH BELOW 7. THE POLYMER MAY BE FORMED IN THE PRESENCE OF PERFORMED POLYMERS, SUBSTRATES SUCH AS POROUS OR IMPERIOUS PARTICLES OR FILMS TO DEPOSIT AN ION EXCHANGE FILM IN SITU OR ON THE SURFACE OF THESUBSTRATE. THE COATED OR RESIN IMPREGNATED SUBSTRATE MAY BE UTILIZED FOR SEPARATION OF ANIONIC SPECIES FROM AQUEOUS SOLUTION.
Abstract:
An electromagnetic transducer head is provided which exhibits a wide band recording response characteristic, and which comprises a plurality of separate magnetic head structures operating over different, overlapping frequency bands, and formed into an integral assembly. Each separate head structure of the assembly includes a magnetic core, and each core is provided with a gap. The cores are positioned adjacent one another so that the gaps are aligned to define a common gap, and the recording medium is drawn across the common gap. The common gap is tapered, with the gap width of each aligned gap section being different from its adjacent section. Separate windings are wound about the cores, each having different numbers of turns so as to cover overlapping frequency ranges.
Abstract:
A COMBINED HYDROGEN GAS SEPARATOR AND GENERATOR DEVICE COMPRISING A PAIR OF THIN PALLADIUM FILM MEMBRANE ELECTRODES SEPARATED BY AN AQUEOUS HYDROXIDE ELECTROLYTE. ON APPLICATION OF AN ELECTROLYTIC CURRENT TO THE FILMS HEATED TO A TEMPERATURE OF AT LEAST 150*C., HYDROGEN IS SELECTIVELY TRANSFERRED THROUGH THE FIRST FILM, ACROSS THE BODY OF ELECTROLYTE AS PROTONIC HYDROGEN AND IS REGENERATED AS DIATOMIC HYDROGEN ON THE OUTSIDE SURFACE OF THE SECOND FILM. THE IMPURITIES IN THE HYDROGEN INLET STREAM COLLECT AT THE OUTSIDE SURFACE OF THE FIRST FILM. THE CONCENTRATED IMPURITIES CAN BE SENT TO DETECTOR FOR ANALYSIS. THE REGENERATED HYDROGEN CAN BE RECYCLED TO OPERATE A SEPARATOR UNIT SUCH AS A GAS CHROMATOGRAPHIC COLUMN.
Abstract:
A VISCOELASTIC CATIONIC POLYMER HAVING A REPEATING UNIT OF THE FORMULA:
-(>N(+)-R1-Z-R2)N-
WHERE Z IS A LINKING CONDENSATION RESIDUE, PREFERABLY URETHANE AND N IS AN INTEGER PREPARED BY LINKING REACTIONS BETWEEN MONOMERIC STARTING METARIALS INCLUDING QUATERNARY NITROGEN FORMING COREACTANTS AND CONDENSATION RESIDUE FORMING COREACTANTS.
Abstract:
A high-intensity xenon arc lamp having a plurality of separate anodes axially disposed in a symmetrical pattern spaced a discharge gap from a common cathode.
Abstract:
A magnetic recording and magneto-optic playback system is disclosed wherein thermomagnetic recording is employed. A transparent isotropic film is heated along a continuous path by a focused laser beam. As each successive area of the path is heated locally to the vicinity of its Curie point in the presence of an applied magnetic field, a magneto-optic density is established proportional to the magnetic field and fixed in place as the area cools once the laser beam moves on to an adjacent area. The magnetic field is varied by an input signal so that the magnetooptic density established in a given area of the film is proportional to the amplitude of the input signal being applied. To play back the recorded data, the intensity of the laser beam is reduced to avoid reaching the vicinity of the Curie point of the film as it is scanned by the laser beam in the same manner as for recording. A Faraday effect analyzer and photo detector are employed as a transducer for producing an output signal.