Patent Yard Sign in
Expired Canadian patentCanada

High side scotch yoke compressor with motor cooled by discharge gas

CA 1330977 C · Owner: Tecumseh Products Company · Inventors: Gannaway, Edwin L.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A compressor assembly is disclosed including a compressor mechanism mounted within a hermetically sealed housing. The compressor mechanism includes a crankcase having a suction inlet opening providing direct communication into a suction cavity within the crankcase. The compressor mechanism is located in an upper chamber of the housing and a motor is located in a lower chamber the, entire interior of the housing being at discharge pressure. Suction gas is isolated from the motor so that heat from the motor does not increase the temperature of the suction gas. The discharge tube is positioned in the lower chamber so that discharge gas flows over the motor to cool it thereby, improving …

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 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 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.
FiledOctober 12, 1988
GrantedJuly 26, 1994
Term endedJuly 26, 2011
Patent numberCA 1330977 C
Classification (IPC)F04B35/04 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 12, 1988Patent grantedJuly 26, 1994Term endedJuly 26, 2011

Sources & verification

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