Transfer cartridge with light seal
CA 1290185 C · Owner: White, Daniel P. · Inventors: Brookmire, Michael A.; White, Daniel P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transfer cartridge for photosensitive material includes an enclosure with an entry slot in one of its walls, and end caps to seal the opposite ends of the enclosure. A pair of rollers is disposed in aligned parallel relationship within the enclosure and a flexible, opaque belt extends between the rollers preferably in, figure 8-fashion. One roller is rigidly mounted upon an elongated shaft, while the second roller is elastically mounted upon a second elongated shaft through the use of a torsion spring. Drive gears on the exterior of the cartridge impart rotational movement to the rollers and the nip between the rollers grasps the leading edge of a length of photosensitive material and …
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 October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.