Vertical injection molding machine
CA 1270107 C · Owner: Nakagawa, Tatsuzi · Inventors: Nakagawa, Tatsuzi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical injection molding machine having an upper die 26 and a lower die 27 which are adapted to be brought together in the vertical direction by the force produced by a die closing device. The injection molding machine has an injection unit 1 disposed below the lower die 27 and is hinged through a hinge shaft 36 to a truck 35 movable along rails 37, such that the injection unit 1 is swingable vertically about the axis of the hinge shaft 36. The vertical swinging motion of the injection unit 1 is effected by cylinders 38 connected to an injection head 2 of the injection unit 1. A compression forming cylinder device 70 is provided on the lower end of each of a plurality of tie-bars which …
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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
- 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.