Ejector pin
CA 1268612 C · Owner: Yamamoto, Yoshiaki · Inventors: Tozawa, Katsutoshi; Yamamoto, Yoshiaki; Nakamura, Motoyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molten metal sensor for detecting metal flow behavior in a casting metal mold is arranged within an axially extending bore formed in an ejector pin. It is unnecessary to additionally form bores for accommodating metal sensors in the metal mole. Number of traces remaining on the surface of a cast article is reduced. A tapered outer surface of the insulating member for insulating the electrode from the metal ejector pin is fitted to a tapered inner surface of the metal case for supporting the sensor within the ejector pin thereby, to prevent a fragment of insulating member from dropping into the mold cavity, thus improving the sensor reliability.
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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 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.