Shrink wrap mounting cup gasket
CA 1306347 C · Owner: Aptargroup, Inc. · Inventors: Knickerbocker, Michael G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making an improved aerosol assembly is disclosed for an aerosol container having a container sealing bead disposed about an upper opening in the aerosol container. The method includes heating a sheet of heat sensitive plastic material and covering the surface of a mounting cup with it. Suction is then applied to secure the plastic material to the whole of the underside of the mounting cup to act as a sealing gasket to provide a fluid tight seal between the mounting cup and container. The method has advantages in its speed in providing a seal, in the quality of seal in the protection given to the entire internal surface of the mounting cup. The resulting assembly is inexpensive …
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 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 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.