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
Anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode
Field of view matching in a visual prosthesis
Probe for ultrasound diagnostic apparatus
Image stabilization apparatus and image pickup apparatus
Modified and stabilized GDF propeptides and uses thereof
DMAPN having a low DGN content and a process for preparing DMAPA having a low DGN content
Address generation unit for accessing a multi-dimensional data structure in a desired pattern
  Randomly Featured Patents
Pouch for surgical drain tubes
Motorcycle gear shift control
Synthesis of 2-piperazinones and 1,4-diaza-2-keto-cycloheptanes
Nasal respiratory mask system and connection/disconnection means used therein
Anti-theft device applicable to containers of articles
Cushioning for athletic shoe
GaInAsP/AIGaInP laser diodes with AIGaAs type II carrier blocking layer in the waveguide
Air conduits and process therefor
Method and device for generating an uniformalized laser beam profile by applying the multi-dimensional double bendings of an optical fiber
Spring-actuated needleless injector