Hot melt adhesive spray dispenser
CA 2120112 C · Owner: Dexter Corporation (The) · Inventors: Sweeney, Stephen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hot melt adhesive dispensing apparatus comprises a housing including a supply chamber for receiving and holding a solid adhesive an electrically , powered, heater, and a spray nozzle assembly. A pneumatically actuated plunger pushes solid, adhesive towards the melt chamber wherein the solid adhesive is progressively melted for passage into the spray nozzle assembly which includes a plurality of air, jets which impinge upon the stream of melted adhesive exiting a nozzle to create an, adhesive spray.
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
- Filed March 28, 1994 and granted June 13, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.