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Expired Canadian patentCanada

Adjustable float assembly for pumps

CA 1304804 C · Owner: General Signal Corporation · Inventors: Harbison, Joe A.; La Grange, Nyle D.; Nielsen, Darryl M.

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

A float assembly for use in tanks sumps, or other liquid-containing vessels includes an elongated, upright, extruded support which maintains individual float switches at preselected heights. The support includes upright elongated, recess-, defining walls with a pair of flat spaced, parallel, sidewall portions that are configured to grippingly engage an outer, deformable insulative covering of a cord connected to the float switch. The cord may be grasped and pulled to an appropriate height and is, thereafter secured by the sidewall portions without the use of tools, fasteners or other components. In preferred forms, the recess-defining walls have a transverse, generally U-shaped …

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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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 1987
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304804 C
Classification (IPC)H01H35/18

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedApril 7, 1987Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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