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Expired Canadian patentCanada

Disc-shaped m.h.d. generator

CA 1180743 A · Owner: B O Development Enterprises Ltd. · Inventors: Last, Anthony J.; Chato, John D.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is provided a magneto-hydrodynamic generator which utilizes pulsating combustion. The generator has a central combustion chamber and a radial expansion chamber annularly surrounding the combustion chamber and communicating with it. The expansion chamber is defined between two opposing walls. A combustible fuel mixture is introduced into the combustion chamber and pulsating combustion is initiated in the combustion chamber so that gas flow, in the expansion chamber fluctuates with time. Means are provided for ionizing gas in the expansion chamber and, further means are provided for applying an external magnetic field to the expansion chamber. Finally electrically, conductive means are …

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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 January 8, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 14, 1982
GrantedJanuary 8, 1985
Term endedJanuary 8, 2002
Patent numberCA 1180743 A
Classification (IPC)H02K44/12 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJune 14, 1982Patent grantedJan 8, 1985Term endedJan 8, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.