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
Sheet coil type resolver
Motorized home appliance door
Head shield
Electronic device package and fabrication method thereof
Multi-mode 3-dimensional image display apparatus
Light-source control device, light-source control method, image reading device, and image forming apparatus
Satellite fleet deployment
  Randomly Featured Patents
Methods compositions and compound assays for inhibiting amyloid-beta protein production
Printer
Trihydrocarbyl silyl substituted alkyl diaryl phosphine transition metal complexes and their use as homogeneous isomerization hydroformylation catalysts
Pharmacologically active compounds
Supplemental spine fixation device and method
Memory card and a method for making more reliable a request for access to an application
Video interlacing using object motion estimation
Layout solution for electromagnetic interference reduction
Automated apparatus for photometrically detecting immunological agglutinating reactions
Antihypercholesterolemic tri-yne carbonates