Resources Contact Us Home
Preset counter apparatus for copying machines and the like

Image Number 3 for United States Patent #4491827.

The present invention provides a preset counter apparatus for a copying machine wherein input keys are capable of independently controlling the numerical value of the number of copies to be made and displayed. Thus, an operator can activate one key to change the digit positions of units and another key to change the digit position of tens. The control of the number of copies to be made is specifically designed to facilitate operator use and to avoid operator errors. Simultaneous activation of more than one key prevents any change in any values in both the units and tens positions.

  Recently Added Patents
Portable computer display structures
Engineered nucleic acids encoding a modified erythropoietin and their expression
Head shield
Side portion of a circular saw blade
Agents for preventing and treating disorders involving modulation of the ryanodine receptors
Device for producing a connection grid with an integrated fuse
Optical module for a microlithography objective including holding and supporting devices
  Randomly Featured Patents
Mobile clinical workstation
Counteracting geometric distortions in watermarking
Enclosure for inground swimming pool
Method for reducing the linear dimension necessary for high resolution electrophoretic separation
System and method for steering Fresnel region data using cylindrical coordinates to access data locations in a holographic memory
Apparatus having an image sensor that is variable in spatial resolution and bit resolution and associated method
Method for producing oxirane
Acoustic sensor
Method and apparatus for driving plasma display panel using selective writing and erasing
Quinazolinones substituted with phenoxyphenylacetic acid derivatives