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
Aisle barrier
Gemstone
Therapeutic vitamin D sun-protecting formulations and methods for their use
Decoding and presentation time stamps for MPEG-4 advanced video coding
Network based JIT on a priori knowledge of a set of disparate clients
Method for carrying out a chemical reaction
Grid computing accounting and statistics management system
  Randomly Featured Patents
Assays for compounds which extend life span
Control system for roll-up doors
Applicator device
Charger
Direct conversion delta-sigma receiver
Deflection yoke and CRT device
Use of MDA-7 to inhibit pathogenic infectious organisms
Production of crystalline zeolites
Simulated masonry wall panel with improved interlock system
Turbomachine with removable stator vane