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Expired Canadian patentCanada

Hypersonic scramjet engine fuel injector

CA 1329992 C · Owner: Lee, Ching-Pang · Inventors: Lee, Vincent H.; Lee, Ching-Pang; Lahti, Daniel John

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A fuel injector for a hypersonic scramjet engine is described. The fuel injector has a horizontal top wall with a fuel injection orifice an, inclined bottom wall, a vertical end wall with a plurality of spaced apart convergent-divergent fuel outlet nozzles and vertical side walls whereby the, injector housing defines a substantially right angled cross-section. A plurality of fuel injectors are connected to the top portion of the combustor of an scramjet engine and are particularly designed to provide sufficient cooling protection against the hypersonic-speed impingement of the compressed inlet air.

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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 June 7, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2011.
  • 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 1, 1989
GrantedJune 7, 1994
Term endedJune 7, 2011
Patent numberCA 1329992 C
Classification (IPC)F02K7/10 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJune 1, 1989Patent grantedJune 7, 1994Term endedJune 7, 2011

Sources & verification

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