Circuit arrangement for a buoyant alarm device
CA 1207402 A · Owner: Remington Products, Inc. · Inventors: Wegrzyn, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved circuit arrangement is described which is used with a buoyant device for indicating a disturbance to the quiescent level of a body of water. The circuit arrangement includes an encoder and transmitter which are supported by the device and which are adapted for transmitting encoded information in accordance with a predetermined pulse code to a remote receiver and alarm. Transmission of the encoded signal is terminated after a predetermined interval of time. The encoder and transmitter are coupled in the circuit for enhancing the turn off of a bistable switching circuit.
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 July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
- 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.