Abstract: A telephone headset interface circuit is coupled to a telephone line to extract power for use by a headset amplifier and is particularly adapted for use with telephone handsets having dynamic or electret microphones. The telephone line connects a telephone to a service system, such as a Central Office, a PBX system, or a Key system. The interface circuit includes a power extraction circuit having a plurality of circuit portions, each one coupled to a corresponding one of the telephone line wires, so that substantially identical electrical impedance characteristics are introduced to each such wire. A ring suppress circuit, serially coupled between the power extraction circuit and the headset amplifier, senses the presence of a ringing voltage on the telephone line and decouples the power extraction circuit from the amplifier in response thereto.

Abstract: A sampler package containing a free flowing product having superimposed first and second flexible plies with confronting thermoplastic inner surfaces and oppositely facing outer surfaces. A thermoplastic wall surrounding an area between the confronting surfaces to physically separate and cooperating in a melt-bonded relationship with the wall to define a hermetically sealed chamber configured and dimensioned to contain the product.

Abstract: The invention concerns a method of manufacturing a measuring device of the Fabry-P erot resonator type. The invention likewise concerns a measuring device manufactured by means of the method. The measuring device is particularly intended for measurement of the pressures inside engine cylinders and comprises a cavity and a first part and a second part, said two parts sandwiching the cavity between them. At least the first part, which consists of silicon, supports a spacer layer of silicon dioxide formed through thermal oxidation. The spacer layer which is partially removed through etching, is joined to the second part using the technique known as direct bonding (SDB).

Abstract: A capillary membrane gas dehydrator. A gaseous stream having water vapor therein flows into the tube side of the capillaries. Water vapor permeates through the fibers to the shell side. A portion of the dehydrated stream is used as a purge stream for the shell side of the dehydrator. A pressure valve meter combination is used in the bypass stream to ensure that the pressure of the purge stream is maintained at a constant level independent of any variation in the pressure of the feed stream. This ensures that if there is an increase in pressure in the feed stream there is no increase in the purge rate and no corresponding increase in purge losses.

Abstract: A water-ejection toy comprising a body having a front end, a nozzle unit provided at the front end of the body, a reservoir provided inside the body for containing water, and a pump assembly supported by the body for delivering water from the reservoir to the nozzle unit for discharge through the nozzle unit. The nozzle unit has a housing including a tubular front end and an apertured cap fit co-axially over the tubular front end through screw-thread engagement. The nozzle unit is adapted to provide a dispersed discharge of water upon tightening of the cap and a concentrated discharge of water upon loosening of the cap.

Abstract: A multilayered cling signage sheet for use in conventional printers, including laser printers. The sheet includes a first layer to provide structural integrity to the sheet. A second print receptive layer is adhered to one side of the first layer. A third layer which is a low modulus cling elastomer is adhered to the other side of the first layer. The cling elastomer is characterized in that it will releasably adhere to a substantially flat surface.

Abstract: A periodic dielectric structure and method of fabricating same, the structure having a three-dimensional photonic bandgap. The structure includes a plurality of layers, at least one layer having a stratum of a first material having a first dielectric constant and a plurality of parallel regions along a first axis lying in the plane of the layer, the regions including a second material having a second dielectric constant; and a plurality of parallel channels formed through the plurality of layers in a second axis orthogonal to the plane of the layers, the channels being adapted to comprise a third material having a third dielectric constant, thereby resulting in the structure having three-dimensional periodicity. In preferred embodiments, the second and third materials include air.

Abstract: A fan assembly has a circular disc with a rotational axis and first and second sides. A cylindrical side wall extends around the periphery of the disc. The side wall has axially spaced first and second rims and is circumferentially subdivided into a plurality of wall segments, each wall segment has inner and outer surfaces, with the second rim of the wall protruding axially beyond the second side of the disc. Fan blades are carried on the outer surfaces of the side wall segments. Mounting members protrude from the first side of the disc at locations spaced circumferentially around the periphery thereof. Connecting members on the inner surfaces of the wall segments coact in separable interlocked engagement with the mounting members to fasten the wall segments to the disc. A first ring on the first side of the disc prevents the connecting members from separating from their interlocked engagement with the mounting members. A second ring on the second side of the disc interconnects the wall segments.

Abstract: A modular rolling mill has a plurality of rolling units arranged in succession on a mill pass line, each rolling unit having multiple pairs of mechanically interconnected work rolls. A plurality of gear reduction units is arranged in succession alongside the mill pass line, each gear reduction unit being driven by a drive motor. Couplings detachably connect at least some of the rolling units to two successive gear reduction units, with the remainder of the rolling units being connected to single gear reduction units.

Abstract: A card issue system includes a data terminal, a card issue apparatus, a common memory, interface, and a data bus. The data terminal receives card issue information including a card issue command. The card issue apparatus performs a card issue process on the basis of the card issue information from the data terminal. The common memory is arranged in the card issue apparatus and stores card issue process result information. The interface performs data interface between the data terminal and the card issue apparatus, and the card issue information from the data terminal is transmitted to the card issue apparatus through the interface. The data bus connects the common memory and the data terminal, and the card issue process result information stored in the common memory is transmitted to the data memory through the data bus.

Abstract: A device for producing an output voltage which is proportional to an applied magnetic field. The device includes a plurality charge injection regions, a corresponding plurality of charge exit regions, and a charge transfer region. The charge transfer region includes gate electrodes which serve to propagate at least one isolated charge packet across the charge transfer region in a predetermined direction from the charge input region to the charge output region. The charge packet is subject to the applied magnetic field which is perpendicular to the charge transfer region so as to induce a resultant potential that is orthogonal to both the applied magnetic field and the predetermined direction. Furthermore, the resultant potential effects a lateral redistribution of charge carriers in the packet. A recirculation configuration allows for a recycling of the packet from the output region back to the input region in order to accommodate a continuation of the redistribution of charge carriers.

Abstract: A rolling mill laying head as a quill supported for rotation about its longitudinal axis between axially spaced first and second bearing assemblies. A laying pipe is carried by the quill for rotation therewith. The laying pipe has an entry section lying on the quill axis between the first and second bearing assemblies, and a three dimensionally curved intermediate section extending through and beyond the second bearing assembly to terminate at a delivery end spaced radially from the quill axis to define a circular path of travel. The dimension by which the laying pipe extends beyond the second bearing assembly is less than the diameter of the circular path.

Abstract: An adjustable headpad assembly is disclosed for use in a headset of the type having a resilient headband with a bridge portion configured to overlie a user's head and leg portions depending from the bridge portion to stirrups carrying earcups configured and dimensioned to enclose a user's ears. The adjustable headpad assembly includes slide members carried on and moveable along the leg portions, a cushioning element extending between the leg portions and connected at opposite ends to the slide members, and a latch unit. The latch unit is releasable to accommodate movement of the slide members along the leg portions to selected positions of adjustment, and is engageable to fix the slide members at the selected positions.

Abstract: A tamper resistant label having a film to which non-adherent and visible indicia are applied. The film, with the non-adherent visible indicia is thereafter corona treated, and a layer of the same material or a material with the same index of refraction as the non-adherent visible indicia is applied, overlying the film. In this arrangement, any removal of the film does not affect the visible indicia, but the region in the vicinity of the visible indicia is destroyed. The non-adherent visible indicia may take the form of any predetermined pattern such as the term void to indicate to a viewer that the overlying protective film has been removed.

Abstract: A one-piece garment hanger including a hanger body and a hook member formed integrally with the hanger body. The hanger further includes an elongate member integrally formed with the hanger such that the elongate member partially delimits an opening in the hanger. The opening is sufficiently large to permit a cylindrical information marker to rotate about the elongate member when the marker is attached to the elongate member.

Abstract: Sphingolipids are involved in the structure of biological membranes. There is a link between sphingolipids and signal transduction. The invention relates to the stereospecific syntheses of dihidrosphingosines using certain chiral epoxides.

Abstract: A rolling mill reforming station has an annular chamber into which rings are dropped to accumulate in coil form. A guide member is rotated about a circular path surrounding the path of ring descent. The guide member has a three dimensionally .[.curved.]. .Iadd.shaped .Iaddend.guide surface configured in the general shape of a plow share which distributes the descending rings around the circumference of the accumulating coil.