DE59102813D1 - Hydraulische Steuervorrichtung. - Google Patents

Hydraulische Steuervorrichtung.

Info

Publication number
DE59102813D1
DE59102813D1 DE59102813T DE59102813T DE59102813D1 DE 59102813 D1 DE59102813 D1 DE 59102813D1 DE 59102813 T DE59102813 T DE 59102813T DE 59102813 T DE59102813 T DE 59102813T DE 59102813 D1 DE59102813 D1 DE 59102813D1
Authority
DE
Germany
Prior art keywords
control
load
line
restrictor passage
control device
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 - Fee Related
Application number
DE59102813T
Other languages
English (en)
Inventor
Rudolf Ing Brunner
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.)
Hawe Hydraulik GmbH and Co KG
Original Assignee
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
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 Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG filed Critical Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Application granted granted Critical
Publication of DE59102813D1 publication Critical patent/DE59102813D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
DE59102813T 1990-07-05 1991-02-07 Hydraulische Steuervorrichtung. Expired - Fee Related DE59102813D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4021347A DE4021347A1 (de) 1990-07-05 1990-07-05 Hydraulische steuervorrichtung

Publications (1)

Publication Number Publication Date
DE59102813D1 true DE59102813D1 (de) 1994-10-13

Family

ID=6409672

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4021347A Granted DE4021347A1 (de) 1990-07-05 1990-07-05 Hydraulische steuervorrichtung
DE59102813T Expired - Fee Related DE59102813D1 (de) 1990-07-05 1991-02-07 Hydraulische Steuervorrichtung.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4021347A Granted DE4021347A1 (de) 1990-07-05 1990-07-05 Hydraulische steuervorrichtung

Country Status (6)

Country Link
US (1) US5191826A (de)
EP (1) EP0464305B1 (de)
AT (1) ATE111052T1 (de)
DE (2) DE4021347A1 (de)
DK (1) DK0464305T3 (de)
ES (1) ES2063386T3 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231399A1 (de) * 1992-08-20 1994-02-24 Rexroth Mannesmann Gmbh Hydraulische Steuereinrichtung
JP3382981B2 (ja) * 1992-11-12 2003-03-04 帝人製機株式会社 舵面の制御装置
DE4243973C1 (de) * 1992-12-23 1994-07-07 Heilmeier & Weinlein Hydraulische Steuervorrichtung
DE4416194A1 (de) * 1994-05-06 1995-11-09 Rexroth Mannesmann Gmbh Regelsystem für einen hydraulisch betätigten Verbraucher eines Nutzfahrzeugs
DE4416228A1 (de) * 1994-05-07 1995-11-09 Rexroth Mannesmann Gmbh Hydraulische Anlage für ein mobiles Arbeitsgerät, insbesondere für einen Radlader
DE9412530U1 (de) 1994-08-03 1994-11-10 Heilmeier & Weinlein Fabrik für Oel-Hydraulik GmbH & Co KG, 81673 München Hydraulische Dämpfungsvorrichtung
US5499503A (en) * 1994-09-22 1996-03-19 Iowa Mold Tooling Company, Inc. Hydraulic swing circuit
DE19528981C1 (de) * 1995-08-07 1996-10-02 Heilmeier & Weinlein Verfahren zum Steuern eines Hydroverbrauchers und hydraulische Steuervorrichtung zur Durchführung des Verfahrens
WO1997013072A2 (de) * 1995-09-29 1997-04-10 Beringer Hydraulik Ag Dämpfung von druckschwingungen in hydraulikanlagen
US6098647A (en) * 1996-02-28 2000-08-08 Beringer-Hydraulik Ag Load-holding brake valve
US6338247B1 (en) * 1998-11-20 2002-01-15 Sauer-Danfoss Inc. System for controlling a hydraulic vehicle drive
DE19925204B4 (de) * 1999-06-01 2008-04-10 Bosch Rexroth Aktiengesellschaft Entsperrbares Lasthalteventil
US6382148B1 (en) * 1999-06-10 2002-05-07 Unisia Jecs Corporation Oil pressure control apparatus for an internal combustion engine
DE10047632B4 (de) * 2000-09-26 2014-01-02 Linde Hydraulics Gmbh & Co. Kg Ventileinrichtung für einen doppelt wirkenden hydraulischen Verbraucher
DE10221276B4 (de) * 2002-05-14 2005-05-19 Eaton Fluid Power Gmbh Hydrauliksystem mit druckabhängiger Dämpfung
YU101104A (sh) * 2002-05-24 2006-01-16 Metso Lindemann Gmbh. Hidraulični upravljač u hidrauličnom sistemu, posebno za pogon makaza za otpad
NL1023583C2 (nl) * 2003-06-02 2004-12-03 Actuant Corp Hydraulische bedieningsinrichting.
DE10336684A1 (de) * 2003-08-09 2005-03-03 Deere & Company, Moline Hydraulische Steueranordnung für eine mobile Arbeitsmaschine
SE531754C2 (sv) * 2007-05-11 2009-07-28 Nordhydraulic Ab Hydraulisk lastkontrollventilanordning
CN101786577B (zh) * 2009-01-23 2013-05-15 柳州欧维姆机械股份有限公司 双机负重行走式液压数控跨缆吊机及控制***及控制方法
DE102009058371A1 (de) * 2009-12-15 2011-06-16 Hydac Filtertechnik Gmbh Ventilanordnung zur Ansteuerung eines Verbrauchers
EP2341253B8 (de) * 2010-01-05 2013-10-16 Nem S.R.L. Hydraulische Vorsteuereinrichtung
EP2696080B1 (de) * 2012-08-09 2016-12-14 HAWE Hydraulik SE Elektrohydrauliksteuerung
GB2514112C (en) * 2013-05-13 2016-11-30 Caterpillar Inc Valve Arrangement
US9810242B2 (en) 2013-05-31 2017-11-07 Eaton Corporation Hydraulic system and method for reducing boom bounce with counter-balance protection
CN103321975B (zh) * 2013-06-05 2016-08-10 天津航天瑞莱科技有限公司 一种低-高压软启动液压油源***
EP3039301B1 (de) 2013-08-30 2018-10-03 Eaton Corporation Verfahren und system zur verwendung eines unabhängigen hydraulischen dosierventilpaars zur verminderung der schwingungen eines auslegers
EP3069030B1 (de) * 2013-11-14 2020-12-30 Eaton Intelligent Power Limited Vorsteuerungsmechanismus zur auslegeraufprallreduktion
WO2015073330A1 (en) 2013-11-14 2015-05-21 Eaton Corporation Control strategy for reducing boom oscillation
EP3169858B1 (de) 2014-07-15 2021-02-17 Eaton Intelligent Power Limited Verfahren und vorrichtung zur ermöglichung der auslegerfederungsreduzierung und zur vorbeugung von selbstständiger bewegung in hydrauliksystemen
EP3615814A4 (de) 2017-04-28 2021-01-27 Eaton Intelligent Power Limited System zur dämpfung von masseninduzierten schwingungen in maschinen mit hydraulisch gesteuerten auslegern oder länglichen elementen
WO2018200689A1 (en) 2017-04-28 2018-11-01 Eaton Intelligent Power Limited System with motion sensors for damping mass-induced vibration in machines
IT201700062799A1 (it) * 2017-06-08 2018-12-08 Vbr S R L Dispositivo di controllo di un cilindro idraulico
FR3083578B1 (fr) * 2018-07-09 2021-01-22 Safran Landing Systems Circuit hydraulique d'alimentation d'un verin, notamment utilise pour manœuvrer une porte de soute d'aeronef

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256383B (de) * 1960-02-05 1967-12-14 Acme Alfred Dehle K G Hydraulisches Geraet zum Betaetigen von Be- und Entlueftungseinrichtungen
DE2036547C3 (de) * 1970-07-23 1973-10-31 Fried. Krupp Gmbh, 4300 Essen Brems und Sperreinrichtung fur em hydrostatisches Triebwerk
DE2314590A1 (de) * 1973-03-23 1974-09-26 Parker Hannifin Corp Ventilanordnung
US3792715A (en) * 1973-03-26 1974-02-19 Koehring Co Single seat holding valve
FR2268177A1 (en) * 1974-04-22 1975-11-14 Bennes Marrel Hydraulic lorry hoist ram control system - has circuit by-passing variable quantity from pump outlet back to tank
DE2526154A1 (de) * 1975-06-12 1976-12-16 Wessel Hydraulik Vorrichtung zum antrieb hydraulischer motoren und zylinder
DD129984B1 (de) * 1977-04-12 1981-02-25 Goetz Kamm Bremsventil hoher regelguete
DE2911891C2 (de) * 1979-03-26 1983-10-13 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zum Steuern eines Hydromotors
IT1207907B (it) * 1979-07-11 1989-06-01 Oil Control Spa Valvola perfezionata a sbloccaggiooleodinamico bilanciata in particolare per consentire comandi in serie ad elevata pressione a piu azionatori idraulici
JPS5614604A (en) * 1979-07-18 1981-02-12 Hitachi Constr Mach Co Ltd Hydraulic circuit
EP0063025A1 (de) * 1981-04-06 1982-10-20 Ruston-Bucyrus Limited Hydraulischer Steuerkreis für einen Hydraulikzylinder
DE3201546C2 (de) * 1982-01-20 1986-03-27 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zum Steuern eines Hydromotors
DE3237103C3 (de) * 1982-10-07 1997-01-23 Wessel Hydraulik Sicherheitsventil als Lasthalteventil in der Hebezeughydraulik
GB2163126B (en) * 1984-08-18 1987-07-22 Bamford Excavators Ltd A boom and method of operating it
DE3733740A1 (de) * 1987-10-06 1989-04-20 Danfoss As Daempfungsanordnung zur schwingungsdaempfung von mit druckfluessigkeit gesteuerten ventilen
JPH0662269B2 (ja) * 1989-04-21 1994-08-17 株式会社神戸製鋼所 移動式クレーンの変位抑制装置
JPH0662270B2 (ja) * 1989-05-10 1994-08-17 株式会社神戸製鋼所 移動式クレーンの変位抑制装置

Also Published As

Publication number Publication date
ES2063386T3 (es) 1995-01-01
DE4021347A1 (de) 1992-01-16
EP0464305A1 (de) 1992-01-08
DE4021347C2 (de) 1993-07-08
EP0464305B1 (de) 1994-09-07
US5191826A (en) 1993-03-09
ATE111052T1 (de) 1994-09-15
DK0464305T3 (da) 1994-11-07

Similar Documents

Publication Publication Date Title
DK0464305T3 (da) Hydraulisk styreindretning
ES2080221T3 (es) Dispositivo hidraulico de mando.
NO960183D0 (no) Anordning til innstilling av en kontorstol e.l.
DK0985629T3 (da) Kran
ES2070745A2 (es) Disposicion de accionamiento hidraulica para la capota de un vehiculo.
ATE169132T1 (de) Elektrohydraulische steuervorrichtung und druckminderventil
GR3024142T3 (en) Hydraulic valve spool control for actuators with uneven piston velocities
DE59306264D1 (de) Hydraulische Steuervorrichtung
DE59506556D1 (de) Hydraulisch betätigte Verriegelungsvorrichtung für Schnellwechsler an Bau- und Arbeitsmaschinen
DE59609587D1 (de) Elektrohydraulisches Hubmodul
ATE187228T1 (de) Hydraulische steuervorrichtung
AU5821396A (en) A method in a pneumatic oscillating device to observe an obs tacle and to continue oscillating and corresponding oscillat ing device
DE69229966D1 (de) Lastdruckkompensierte hydraulische Steuereinrichtung
DE69703170D1 (de) Hydrauliksystem
FR2710372B1 (fr) Dispositif de commande hydraulique d'un vérin à double effet.
ES2096809T3 (es) Dispositivo de mando hidraulico.
ATE220449T1 (de) Spannmodul
DE59409720D1 (de) Lastdruckunabhängige Steuerung der Geschwindigkeit von hydraulischen Stellelementen an Baumaschinen
ITMI922426A1 (it) Disposizione di valvole per il comando indipendente dal carico di piu' utilizzi idraulici
ATE181404T1 (de) Hydraulische dämpfungsvorrichtung
IT1238091B (it) Circuito idraulico di comando con compensatori di pressione del tipo "load sensing" per macchine movimento terra, trattori e simili
FR2681387B1 (fr) Valve de commande de pression de fluide.
FI944589A (fi) Laite hydraulisylinterin liikkeen ohjaamiseksi
DE59600416D1 (de) Elektrohydraulisches Hubmodul
SE9302069D0 (sv) Anordning foer att reglera den axiella roerelsehastigheten hos en staang

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HAWE HYDRAULIK GMBH & CO. KG, 81673 MUENCHEN, DE

8339 Ceased/non-payment of the annual fee