GB2045472B - Header height valve - Google Patents

Header height valve

Info

Publication number
GB2045472B
GB2045472B GB8005976A GB8005976A GB2045472B GB 2045472 B GB2045472 B GB 2045472B GB 8005976 A GB8005976 A GB 8005976A GB 8005976 A GB8005976 A GB 8005976A GB 2045472 B GB2045472 B GB 2045472B
Authority
GB
United Kingdom
Prior art keywords
header height
height valve
valve
header
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8005976A
Other languages
English (en)
Other versions
GB2045472A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessna Aircraft Co
Original Assignee
Cessna Aircraft Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cessna Aircraft Co filed Critical Cessna Aircraft Co
Publication of GB2045472A publication Critical patent/GB2045472A/en
Application granted granted Critical
Publication of GB2045472B publication Critical patent/GB2045472B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/14—Mowing tables
    • A01D41/145—Header lifting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
GB8005976A 1979-03-12 1980-02-22 Header height valve Expired GB2045472B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/019,815 US4283996A (en) 1979-03-12 1979-03-12 Header height valve

Publications (2)

Publication Number Publication Date
GB2045472A GB2045472A (en) 1980-10-29
GB2045472B true GB2045472B (en) 1983-02-23

Family

ID=21795178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005976A Expired GB2045472B (en) 1979-03-12 1980-02-22 Header height valve

Country Status (5)

Country Link
US (1) US4283996A (enExample)
BR (1) BR7907811A (enExample)
CA (1) CA1122881A (enExample)
FR (1) FR2451484A1 (enExample)
GB (1) GB2045472B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733679A1 (de) * 1987-10-05 1989-04-13 Rexroth Mannesmann Gmbh Steuerschaltung fuer einen mit einer verstellpumpe betriebenen hydraulischen kraftheber
DE3733677A1 (de) * 1987-10-05 1989-04-13 Rexroth Mannesmann Gmbh Lastunabhaengige steuereinrichtung fuer hydraulische verbraucher
US5454223A (en) * 1993-05-28 1995-10-03 Dana Corporation Hydraulic load sensing system with poppet valve having an orifice therein
JP4276491B2 (ja) * 2003-08-04 2009-06-10 日立建機株式会社 方向切換弁ブロック
DE102005062350A1 (de) * 2005-12-23 2007-07-05 Abb Technology Ag Hydraulikventil
US10487474B2 (en) 2017-06-23 2019-11-26 Deere & Company System and method for hydraulic actuator lock valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049101A (en) * 1961-04-03 1962-08-14 New York Air Brake Co Hydraulic mechanism
US3198088A (en) * 1963-08-13 1965-08-03 Caterpillar Tractor Co Fluid motor control system
US3272085A (en) * 1963-11-19 1966-09-13 Parker Hannifin Corp Fluid system and valve assembly therefor
US3410306A (en) * 1966-10-27 1968-11-12 Gen Signal Corp Control valve with lockout element
US3508847A (en) * 1968-09-11 1970-04-28 Cessna Aircraft Co Pump control system
JPS5226311B2 (enExample) * 1973-08-24 1977-07-13
US4040438A (en) * 1974-04-18 1977-08-09 Koehring Control valve with flow control means
NL7800061A (nl) * 1977-02-14 1978-08-16 Beermann Kg Martor Argentax Handbediende snijinrichting.

Also Published As

Publication number Publication date
FR2451484A1 (fr) 1980-10-10
BR7907811A (pt) 1980-10-14
CA1122881A (en) 1982-05-04
FR2451484B1 (enExample) 1984-04-27
GB2045472A (en) 1980-10-29
US4283996A (en) 1981-08-18

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930222