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Expired Canadian patentCanada

Power device housing with lubricant anti-wicking facility

CA 1253347 A · Owner: Black & Decker Inc. · Inventors: Overy, Colin

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

In a housing (22) for a right-angle grinder (20) a pair, of clamshell sections (24) and (26) are joined along a midplane (28). The interior of the housing (22) is formed with a motor case (34) and a gear case (36). Clamshell section (26) is formed with a rib (76) in a peripheral edge (72) thereof and is nested in a groove (58) formed in a peripheral edge (56) of clamshell section (24) to form an interlock for the housing (22). slots (78) and (80) are formed transversely through the rib (76) along two spaced paths of the interlock to preclude a flowable lubricating substance from creeping from gear case (36), along the two spaced paths of the interlock to the motor case (34).

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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 May 2, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 2, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 1986
GrantedMay 2, 1989
Term endedMay 2, 2006
Patent numberCA 1253347 A
Classification (IPC)B65D25/54 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedFeb 3, 1986Patent grantedMay 2, 1989Term endedMay 2, 2006

Sources & verification

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