Patent Yard Sign in
Expired Canadian patentCanada

Harvesting header having adjustable width, draper belt discharge opening

CA 1289753 C · Owner: Schroeder, James W. · Inventors: Schmitt, Ray; Guinn, Ronald K.; Schroeder, James W.

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

Abstract of the Invention A harvester having hydraulically shiftable draper sections for left, right or center crop discharge has a pair of movement limiting tangs which are carried by the draper sections at either of one of two selected locations in order to enable the lateral dimension or width of the discharge opening to be varied in accordance with crop conditions. When the standing crop is relatively dense the tangs are positioned in an inboard location on the draper carriages so that the width of the discharge opening is maximized. Alternately the tangs, can be positioned in outward locations on the carriages for limiting lateral movement of the latter and reducing the width of the …

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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
  • 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 13, 1989
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289753 C
Classification (IPC)A01D57/20

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedApril 13, 1989Patent grantedOct 1, 1991Term endedOct 1, 2008

Sources & verification

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