Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Endless ribbon cartridge










Image Number 2 for United States Patent #4053042.

An endless ribbon cartridge for supplying ribbon to an external printing station with relatively uniform tension and including an anti-fouling mechanism to prevent snarling of the ribbon as it re-enters the cartridge. The cartridge comprises a two-piece housing having a cover and a main body portion with separate exit and entrance slots and interior boundary walls partially defining a ribbon chamber having entrance and exit portions. An endless ribbon is partially received within the chamber in random folds, the remainder of the ribbon traversing a looped path from the chamber exit portion through the housing exit slot and the housing entrance slot to the chamber entrance portion. A capstan and pinch roller assembly is provided adjacent the entrance slot to translate the ribbon along the looped path. Tensioning is located at the chamber exit portion, and optional additional tensioning is located at the exit slot, providing a drag force for maintaining the ribbon tension at the external printing station substantially uniform. These tensioning devices are comprised of a simple spring member having a blade portion and an offset central hub, the spring member being mounted in a flexed position. The boundary wall adjacent the exit portion of the chamber is provided with a relieved channel which receives a mating boss depending downwardly from the inner surface of the cartridge cover member in order to limit motion of the exiting ribbon in the direction transverse to the desired translational direction.








 
 
  Recently Added Patents
LED driving circuit, LED illumination appliance, LED illuminator, and LED illumination system
Creating three dimensional graphics data
Circuits for prevention of reverse leakage in V.sub.th-cancellation charge pumps
Wine cellar alarm system
Plants and seeds of hybrid corn variety CH424126
Semiconductor pressure sensor
Media used in digital high speed inkjet web press printing
  Randomly Featured Patents
Initiator suspensions, their preparation and use
Independently controlled-brush motor for open-end spinning machine and method
Apparatus and method for mitigating toe strike in aircraft
Remote control unit for radio/television transmitter station
System and method for management of delegated real estate project reviews
Polyester carbonate containing divalent residue of polymerized, partially hydrogenated conjugated alkadiene monomer
Adaptive imaging telescope with nonlinear sensing and electro-optical phase shifting
Methods and systems for chemoautotrophic production of organic compounds
Method and system for voltage controlled oscillator impedance control to optimize performance, efficiency, and power consumption
Automated detection and notification of the need for service and/or supplies replenishment in a machine