Protective circuit for the induction coil of a magnetically inductive flow meter
CA 1314308 C · Owner: Danfoss A/S · Inventors: Hansen, Henning Max; Pedersen, Allan Skovgaard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A protective circuit for the induction coil (1) of a magnetically inductive flow meter permits this coil to be disposed in an explosion risk zone. The induction coil (1) is firmly connected to a current receiving circuit (21; 121) which bridges same and has two Miller integrators. In the leads (3 4) there is a, two-part current limiting circuit (7; 107). Depending on the direction of the current, parts of the current receiving circuit and of the current limiting circuit are made inactive by bridging diodes (10, 11, 24, 25; 110, 111, 124, 125).
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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.