Toner image pressure-fixing device
CA 1106902 A · Owner: Hitachi Metals, Ltd. · Inventors: Sasaki, Yoshitaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toner image pressure-fixing device has a pair of pinch rolls arranged in rolling engagement with each other to provide a nip through which a carrier sheet with a deposit of toner particles thereon is passed to fix the deposit to the carrier sheet by pressure. One of the pinch rolls is of a diameter smaller than that of the other and is solid while the other pinch roll is hollow. The smalldiameter pinch roll is resiliently urged against the large-diameter pinch roll by leaf springs and is backed up by a single back-up roll which is disposed on the side of the small-diameter pinch roll substantially diametrically opposite to the largediameter pinch roll and is resiliently urged against the …
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 August 11, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1998.
- 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.