Apparatus and method of assembling an inner tube into an outer tube
CA 2122941 A1 · Owner: Sengstock, Robert Henry · Inventors: Sengstock, Robert Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method of assembling an inner tube into a hollow outer tube is disclosed for forming a tampon applicator. The apparatus includes a first member configured to mate with the outer tube and a second member configured to mate with the inner tube. A vacuum is intermittently supplied to the first and second members to hold the inner and outer tubes in coaxial alignment. The apparatus also includes a push rod which is designed to contact and move the inner tube off of the second member and into the outer tube. The movement of the push rod is activated by a control mechanism which can reciprocally move the push rod a predetermined distance at a set time to permit the inner tube to …
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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
- Filed May 5, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2016.
- 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.