Apparatus for applying radiant beam with automatic shut-off means
CA 1183577 A · Owner: Baxter Travenol Laboratories, Inc. · Inventors: Cobean, Richard W.; Wicnienski, Michael F.; Feldman, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for applying a radiant beam against an opaque diaphragm (18) to melt an aperture in the diaphragm (18). Bracket means (12) are provided for positioning the diaphragm (18) at a predetermined position along with a, source of the radiant beam (20) and electric circuit means (21) for activating the source (20). Photocell means (52) may be positioned whereby a properly positioned diaphragm (18) initially shades the photocell (52) from the beam and, the beam strikes the photocell (52) when the aperture is formed. Means are provided to shut off the radiant beam responsive to the beam striking the photocell (52). The photocell (52) may be positioned in a pivotable switch arm (46), and the …
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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 March 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2002.
- 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.