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특허 상세정보

Slave cylinder stabilizer for harvester header

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A01D-047/00    A01D-075/28   
미국특허분류(USC) 56/010.2E ; 56/DIG.15 ; 60/472
출원번호 US-0896178 (1997-07-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Hovey, Williams, Timmons & Collins
인용정보 피인용 횟수 : 13  인용 특허 : 2

The windrower or other harvester has a hydraulic lift circuit for its header that includes a pair of double-acting cylinders which operate in concert to raise the header and provide a solid, lower limit for downward swinging of the header. The two cylinders are connected to one another in a master-slave relationship, and the slave cylinder has its return line normally blocked by a one-way check valve so that a body of fluid is trapped against the piston of the slave cylinder during field operations. This stabilizes the two cylinders to reduce header boun...


[ We claim:] [1.] In a farm implement having a mobile frame to which a crop header may be attached, height control apparatus for the header comprising:a charging circuit containing hydraulic fluid under pressure;a lifting circuit including a master cylinder and a slave cylinder for exerting a pair of lifting forces at spaced locations on the header; anda control system between the charging circuit and the lifting circuit and selectively placeable in alternative lift, hold, or lower modes for either communicating the charging circuit with the lifting circ...

이 특허를 인용한 특허 피인용횟수: 13

  1. Hoffman,Charles H.; Fackler,Robert L.. Drop rate control for agricultural header. USP2007017168229.
  2. Bomleny,Duane M.; Hulscher,Jay T.; Bunde,Travis L.. Floating header with integrated float system for use with an agricultural windrower or combine. USP2008107430846.
  3. Ehrhart, Philip J.; Otto, Douglas R.. Header height control system and apparatus. USP2011087987656.
  4. Bomleny,Duane Michael. Header hydraulic float suspension. USP2007047207164.
  5. Bomleny,Duane Michael; Hulscher,Jay Tyler; Bunde,Travis L.. Header hydraulic float system. USP2007057222475.
  6. Otto, Douglas R.; McLean, Kenneth W.. Header lift system with hydraulic counterweight. USP2005066901729.
  7. McLean,Kenneth W.; Otto,Douglas R.; DeChristopher,David M.; Fackler,Robert L.; Hoffman,Charles H.; Osborne,Donald L.; Paulin,Stephen V.. Independent hydraulic header lift and flotation system. USP2007017168226.
  8. Verhaeghe, Didier O. M.; Missotten, Bart M. A.. Lifting system for a harvester with a pivotable cylinder. USP2016109474209.
  9. Otto, Douglas R.; Kopp, Sean P.; Fackler, Robert L.. Method and apparatus to put a windrower header in the transport mode under specified conditions. USP2011017869922.
  10. Fackler, Robert L.; Otto, Douglas R.; Hoffman, Charles H.. Method for managing the electrical control system of a windrower header flotation and lift system. USP2010047703266.
  11. Fackler, Robert L.; Otto, Douglas R.; Hoffman, Charles H.. System and method for managing the electrical control system of a windrower header flotation and lift system. USP2009077555883.
  12. Hatcher Andrew ; Quinn Patrick. Variable rate ride control. USP2001016167701.
  13. Vuk, Carl T.. Work machine with drive train coupled turbo compounding. USP2012118302398.