Image production device vacuum cleaner
CA 1295654 C · Owner: International Business Machines Corporation · Inventors: Wilzbach, Bernard L.; Post, Alvin M.; Timmerman, Randy C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, An electrophotographic reproduction device includes an air blower having a vacuum pressure inlet and a positive pressure outlet. The inlet and/or outlet is connected to provide blower induced airflow at device stations, such as a sheet detack station that require blower induced airflow for proper operation thereof. The duct or conduit that connects to the blower inlet may be attached to a flexible vacuum cleaner hose by service personnel. The vacuum cleaner hose is then manually usable to clean the interior of the device of the buildup of toner, paper dust and debris, as the device is periodically serviced.
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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.