Abstract: A self-feeding feeder for use with printers having rotatably driven friction feed rollers. The feeder includes mounting plates conforming to the shape of the printer print station for removably mounting the feeder. A gear is attached to the friction feed rollers and supplies rotary motion to a pair of drive rollers via an intermediate drive train. A pair of spring loaded guides having integral sides formed therein urge individual cut sheets of media out of an input media support tray and into the printer. The drive mechanism includes a pin and key drive assembly to maintain media spacing. Deflector means and an output tray are provided which automatically collect and collate the sheets of media emerging from the printer.
Abstract: An improved print medium driving mechanism for a line or serial printer adapted for advancing either individual cut sheets or a continuous web having regularly spaced perforations preformed along its edges. The driving mechanism operates in either a friction drive mode or a spur drive mode. In friction drive mode, print medium inserted into the mechanism, is guided to a driven friction feed roller. The medium is then clamped between the feed roller and a plurality of pressure rollers. Driven by the feed roller, the medium is advanced and guided around that roller and then between immediately adjacent surfaces of a printhead and a platen. If cut sheets are being driven, they are inserted between lateral guides adjusted to the width of the sheet. Such sheets, after being advanced past the platen, contact a deflector surface of a cover which guides them into a second clamping, driven engagement in a friction feed assembly.
April 7, 1983
Date of Patent:
November 29, 1983
Durango Systems, Inc.
James E. Cushman, Mario G. Plaza, Helmut K. Waibel
Abstract: An improved, U-shaped printing ribbon cartridge adapted for use with either film or woven printing ribbons of widely varying thicknesses. The printing ribbon feeds from one terminal end of the cartridge, across the open mouth of the "U" wherein it may be contacted for printing and into the other terminal end of the cartridge. Within the base of the U-shaped cartridge, located to one side thereof, the ribbon passes between a toothed driving wheel and a meshing, toothed pinch wheel for advancing the ribbon under tension. The pinch wheel is pivotably mounted and spring loaded against the driving wheel. Bearings located about both terminal ends of the toothed segment of the driving wheel are received by apertures formed in opposite walls of the cartridge. The driving wheel may be rotated from outside the cartridge by a splined shaft inserted thereinto or turned manually by a conically-shaped terminal end thereof.
Abstract: A telephone call diverting and answering system. The system includes a telephone call concentrator for diverting a telephone call placed at a telephone set at one of a number of calling stations, from a telephone line connected to the intended telephone set, at one of a large number of called stations, to one of a small number of telephone trunks leading to sets at a number of answering stations. The system further includes an operator console at each answering station, and a traffic director for assigning the call to a particular station by causing the identity of the called station and the number of the diverting trunk to be displayed on the operator console of the assigned answering station.
September 28, 1979
Date of Patent:
March 17, 1981
Durango Systems, Inc.
Ronald A. Lesea, Barrie Luttge, Austin H. Lesea
Abstract: A web drive mechanism to advance the print medium of a line or serial printer apparatus including a first stationary guide track for guiding the print medium along a defined path intermediate a medium supply position and a printing position, a platen about the printing position for receiving the medium, at least one rotor drive member having a rotor positioned adjacent to the guide track along the defined path intermediate the supply position and the platen with the outer peripheral surface of the rotor being adjacent to at least a portion of the arcuate path of the guide track to permit the print medium to travel intermediate the guide track and the rotor, the rotor drive member including a first medium gate for urging the print medium in engagement with the peripheral surface of the rotor as the medium advances intermediate the supply position and the platen, and a second medium gate for holding the print medium as it advances intermediate the platen and a medium take-up position, and a drive means engaging
Abstract: A print head carriage assembly for a serial printer apparatus, the carriage including a platform having two parallel channels extending laterally through the frame member for receiving self-aligning bearings and carriage guide rails; a central seat within the platform for seating the housing of a matrix print head with the longitudinal dimension of the print head oriented normal to the longitudinal axes of the channels, locking means for securing the matrix print head in place about said central seat with the neck of the head extending substantially normal to the axes of the channels, manifold adjustment means for adjusting the position of the head within the seat relative to the axes of the channels; and means for engaging the platform to a drive means for driving said platform laterally along said guide rails.
Abstract: A fastener assembly for mounting and securing two structural members in abutting relationship with each other. The assembly includes a planar unitary anchor member of a substantially "P" shape and wherein one of the structural members to be assembled has a notch comprising a pair of intersecting perpendicular slots to form a substantial T-shaped pattern about an edge of said structural member with the anchor member pressfit into one of said slots with the planar surface of the anchor member normal to the planar surfaces of the structure member and normal to said other slot of said notch; and a locking pin member for engaging a second structure member and including locking means for locking the pin to the anchor member.
Abstract: A read only memory character generator system for generating dot print characters of a given font within a nine-column-by-nine-row dot matrix comprising a read only memory having a storage capacity of one byte per row of memory, the memory having a first memory means, a second memory means and a third memory means with the first memory means having nine memory row locations of memory storage devices for each character of the font to be printed, the memory storage devices at each successive row for each character being burned in pursuant to the dot matrix pattern for successive columns of dots of not more than eight rows for that given column of that given character, the second memory means having one memory row location of memory storage devices for each character of the font to be printed with the storage devices at each location being burned in pursuant to the dot matrix pattern of the remaining columns of the ninth row dot matrix pattern for not more than six columns of dots for the ninth row of one of sai