Patent Yard Sign in
Expired Canadian patentCanada

Copier exposure carriage drive system

CA 1092640 A · Owner: Rex-Rotary International Corporation A/S · Inventors: Zeuthen, Karl G.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The disclosure relates to a document copier in which forward and reverse travel of a scanning member. preferably a document-carrying carriage moving past a stationary scanning source, is driven in a forward direction by a first drive chain, and entrained for movement in a reverse direction by a second, more rapidly circulating drive chain. The second drive chain is effective also to drive the image-developer unit and the sheet feed system of the copier. In the preferred embodiment the first, drive member is synchronized to circulate at the same speed as the peripheral speed of rotation of the photoconductor drum.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 14, 1976
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092640 A
Classification (IPC)G03G15/22 +1 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedDec 14, 1976Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.