Abstract:
An electrical component including: a plurality of long fibers and a matrix, wherein at least one of the fibers is electrically conductive, wherein the plurality of long fibers includes a first fiber group extending in a manner generally parallel to a first axis, and a second fiber group extending in a manner generally parallel to a different second axis.
Abstract:
An electrical component including a plurality of electrically conductive fibers in a matrix, wherein the matrix is prepared from a composition including a methyl methacrylate monomer and a modified bisphenol monomer, wherein the electrical component has a region at least substantially free of the matrix to provide a plurality of electrical contact points.
Abstract:
A device for transferring electrical charge from an electrically conductive element to a rotating element is provided. The device has a body including a pultruded composite member having a multiplicity of electrically conductive fibers provided with a polymer matrix. The plurality of conductive fibers is oriented within the polymer matrix in a longitudinal direction of the pultruded composite member. The fibers each extend in a substantially parallel direction, parallel to a first axis. The body includes a first contact area. The body defines an aperture therein. The body has a second contact area on the periphery of the aperture spaced from the first contact area and a support. The support is secured to the body for supporting the body. The first contact area is for contact with the conductive element and the second contact area is for contact with the rotating element. The fibrillated portion is coincident with at least one of the first contact area or said second contact area.
Abstract:
A method of forming at least one electrically conductive path in a thermoplastic substrate having a melting point below 325.degree. C., by synchronously depositing on the substrate in the predetermined pattern of said conductive path from an atomized stream of a precursor of a catalyst for the electroless deposition of conductive metals and locally heating the deposited precursor in the pattern corresponding to the conductive path, the catalyst precursor having a decomposition temperature below the melting point of the thermoplastic and within the temperature range where the thermoplastic softens, heating the portion of the thermoplastic substrate corresponding to said conductive path to a temperature sufficient to decompose said catalyst precursor to the catalyst and soften the thermoplastic; said substrate, catalyst precursor and temperature being selected such that on heating to the temperature the precursor decomposes to the catalyst, the thermoplastic softens and at least partially melts without substantial decomposition to enable the catalyst to penetrate the surface of the thermoplastic and become anchored thereto to provide nucleation sites for the subsequent electroless deposition of conductive metal and depositing conductive metal by electroless deposition on the heated portion to form the conductive path.
Abstract:
An interconnect for electrically connecting two members having conductive wiring on respective surfaces thereof includes first and second hinge parts of electrically insulating material which are mutually pivotable when placed in a mating position. The hinge parts have mutually contacting electrically conducting portions when the first and second hinge parts are in their mating position, and the electrically conducting portions are in electrical contact with the conductive wiring on the respective surfaces of the two members. The conductive wiring is arranged on the two members such that when the members are secured, for instance, to assemblies to be interconnected, the conductive wiring aligns with and contacts the desired wires or traces on the interconnected assemblies. In one embodiment, the hinge assemblies are manufactured from a substrate of an electrically insulating polymer matrix which is doped with an electrically insulating fibrous filler capable of heat conversion to an electrically conductive fibrous filler to form a conductive trace. The conductive trace of one assembly is electrically connected to the conductive trace of the other assembly by mating portions of said hinge assemblies, each mating portion including a conductive layer on a surface thereof in direct electrical communication with a corresponding conductive layer on opposing mating portions of said other hinge assembly to provide electrical connection between the conductive traces of said hinge assemblies through a pivotal movement of said one hinge assembly relative to said other hinge assembly. The hinge assemblies may be pivotally interconnected by a hinge pin or by a snap fit relationship between male protrusions on one assembly and female sockets on the other assembly.
Abstract:
A high voltage connector is formed of a composite pultruded member that has an inner core including a plurality of high resistance electroconductive strands carried in a resin binder. The inner core is surrounded by an outer nonconductive shell, and extends from a laser cut end of the outer shell to a contact face. During formation of the contact using laser techniques, portions of the outer shell are removed to expose the inner core, the resin binder of the inner core may be removed, and the strands of the inner core may be fibrillated and patterned as desired. In one embodiment, the resistance of the strands of the inner core of the high voltage connector provide a load resistor for a circuit to which the connector may be connected.
Abstract:
A cylindrical fiber brush useful in electrostatic charging and cleaning in an electrostatographic imaging process comprises an elongated cylindrical core having bound thereto a spirally wound conductive pile fabric strip forming a spiral seam between adjacent windings of the fabric strip, the fiber fill density of said fabric strip at the strip edge being at least double the fiber fill density in the center portion of the fabric strip. The increased fiber fill density at the strip edges provides additional fibers to fill the seams between the adjacent windings and improves the charging and cleaning performance at low rotational speeds.
Abstract:
Cleaner apparatus for electrostatographic reproducing apparatus comprises a cleaning blade in cleaning engagement with the endless charge retentive surface and end seals at each end of the charge retentive surface comprising a dense fibrous brush of resiliently flexible fibers fixed to a backing with the fibers being oriented in compression interference sealing contact with the charge retentive surface and in sealing engagement with the ends of the cleaning blade to provide a physical containment wall for bulk toner in the cleaner housing and a seal between the wall and the charge retentive surface.
Abstract:
An improved fluid applicating wick for use in applying release fluids to a fuser member surface of a fusing system for fusing toner images is described. The wick comprises a working surface material which contacts the fuser member surface, and a backing material to which the working surface material is needled. A preferred fluid applicating wick comprises a layer of Teflon felt or fiber as a working surface material is needled to a fibrous or felted Nomex material.
Abstract:
In accordance with the invention, there are temperature sensing and temperature control devices and methods of making them. The temperature sensing and control devices can include a composite member, the composite member including a non-metallic binder material, and one or more non-metallic, electrically conductive fibers disposed in the non-metallic binder material. The temperature sensing and control devices can also include a plurality of contacts disposed on the one or more non-metallic, electrically conductive fibers, wherein the composite member has a substantially continuous decrease in electrical resistance with an increase in temperature.