Abstract: A device comprising a flow channel having an inlet for introducing a flow of a first material, an outlet for exiting a flow of a second material; a plunger disposed and slidably movable coaxially within the flow channel; a first cooling device disposed adjacent to and substantially surrounding the flow channel comprising a housing having an internal sealable chamber for containing a first cooling fluid, an inlet having a first seal, and an outlet having a second seal, wherein the first cooling fluid is sealable within the sealable chamber; a second cooling device disposed adjacent to and substantially surrounding the first cooling device comprising a housing having an internal channel for a flow of a second cooling fluid, an inlet in fluid communication with the internal channel, an outlet in fluid communication with the channel, and a device for controlling the flow of second cooling fluid.

Abstract: A photoreceptor includes a supporting substrate and an outer layer on the photoreceptor, the outer layer including silicone oil uniformly dispersed as vesicles in a continuous film forming polymer matrix. This photoreceptor is used in a xerographic copier/printer machine and contributes to a longer operating life of the machine by providing continuous lubrication, decreased friction and decreased wear of the interaction of the photoreceptor and other machine parts. This photoreceptor is prepared by incorporating silicone oil and at least one film forming polymer in at least one solvent, removing the solvent and forming a dried outer layer in which the silicone oil is phase separated from the other components of the top layer forming small vesicles which are uniformly dispersed in the continuous film forming polymer matrix.

Abstract: A mandrel for transporting hollow cylinders including an elongated arm having a first end and a second end, an expandable disk supported at the first end and means supported at the second end to expand the expandable disk, the mandrel arm comprising an elongated body having an imaginary axis and at least three fins extending substantially radially from the arm, each of the fins having an alignment shoulder adjacent the first end adapted to receive an end of a hollow cylinder and to coaxially align the cylinder with the elongated arm. This mandrel is used in a process for coating hollow cylinders.

Abstract: A mandrel including an elongated arm having a first end and a second end, a reciprocatable shaft coaxially aligned with and extending through the arm, a first end of the shaft extending beyond the first end of the arm and a second end of the shaft extending beyond the second end of the arm, a presser means mounted at the first end of the shaft, an expandable disk shaped member coaxially aligned with and slidably mounted on the shaft between the presser means and the first end of the arm, a compression means mounted on the second end of the shaft, and a resilient helical spring coaxially aligned with and slidably mounted on the shaft between the presser means and the compression means, the compression means adopted to apply compression pressure to the disk shaped member and to the helical spring. This mandrel is used in a process for coating hollow cylinders.

Abstract: An apparatus and method for processing cylindrical and belt-like substrates includes a carousel rotatable to any one of a plurality of planetary stations surrounding the carousel, the carousel having a support structure defining a central horizontal axis and at least one support arm mounted on the support structure for supporting a substrate thereon along a horizontal axis parallel to and radially offset from the central horizontal axis. The support structure reciprocates relative to any one of the plurality of stations to insert the substrate into and withdraw the substrate from any one of the plurality of stations, and the at least one support arm is rotatable about its offset horizontal axis to rotate the substrate thereon.

Abstract: An apparatus and method for processing cylindrical and belt-like substrates includes a carousel rotatable to any one of a plurality of planetary stations surrounding the carousel, the carousel having a support structure defining a central horizontal axis and at least one support arm mounted on the support structure for supporting a substrate thereon along a horizonal axis parallel to and radially offset from the central horizontal axis. The support structure reciprocates relative to any one of the plurality of stations to insert the substrate into and withdraw the substrate from any one of the plurality of stations, and the at least one support arm is rotatable about its offset horizontal axis to rotate the substrate thereon.

Abstract: A method and apparatus for coating cylindrical and belt-like photoreceptor substrates includes a coating chamber for receiving a planetary array of substrates surrounding a central horizontal axis. An applicator is located within the coating chamber along the central horizontal axis for directing a spray radially outward toward the substrates which rotate about their own axes during the coating operation.

Abstract: A process for preparing a multilayered belt comprises heating a substrate formed of a polymeric material, the substrate having a predetermined inner circumference, to at least about the glass transition temperature of the polymeric material and then placing the sleeve on a cylindrical mandrel. The mandrel has an outer circumference slightly greater than the predetermined inner circumference of the seamless tube. The substrate on the mandrel is subsequently coated to form a multilayered composite belt. The composite belt is then heated to a temperature of at least about the glass transition temperature of the substrate and the composite structure is removed from one end of the mandrel. Removal of the composite belt from the mandrel may be facilitated by any suitable means such as small driven elastomeric rollers, vacuum cups, gravity with vacuum assist and the like. Upon cooling, the composite structure has the predetermined inner circumference.