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1. WO2009005818 - LANDING GEAR JACK AND METHODS OF USE

Publication Number WO/2009/005818
Publication Date 08.01.2009
International Application No. PCT/US2008/008243
International Filing Date 03.07.2008
IPC
B60S 9/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
9Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
02for only lifting or supporting
10by fluid pressure
B62D 53/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
53Tractor-trailer combinations; Road trains
04comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
06Semi-trailers
CPC
B60S 9/06
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
9Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
02for only lifting or supporting
04mechanically
06of screw-and-nut type
Applicants
  • BUTLER PRODUCTS, INCORPORATED [US]/[US] (AllExceptUS)
  • DANIEL, Jeffrey, K. [US]/[US] (UsOnly)
Inventors
  • DANIEL, Jeffrey, K.
Agents
  • TIDWELL, Mark A.
Priority Data
11/824,82103.07.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LANDING GEAR JACK AND METHODS OF USE
(FR) VÉRIN DE LEVAGE DE BÉQUILLE ET PROCÉDÉS D'UTILISATION
Abstract
(EN)
A lifting device is provided for raising and lowering of heavy objects, including trailer landing gear and outriggers. The lifting devices may comprise one or more jacks where each jack is comprised of telescoping legs. In each jack, an expandable hydraulic cylinder may be expanded or extended by a pneumatically actuated pump or pumps that pump hydraulic fluid from a hydraulic fluid source mounted on the jack to the expandable hydraulic cylinder so as to motivate extension of each telescoping jack. A control mechanism may be provided to actuate one or more pneumatically actuated pumps to introduce hydraulic fluid into the hydraulic cylinders. Methods of use and operation are also provided.
(FR)
L'invention concerne un dispositif de levage permettant de soulever et d'abaisser des objets lourds, comprenant une béquille de remorque et des stabilisateurs de remorque. Les dispositifs de levage peuvent comprendre un ou plusieurs vérins de levage, chaque vérin de levage étant constitué de pieds télescopiques. Dans chaque vérin de levage, un vérin hydraulique extensible peut être agrandi ou étendu par une ou plusieurs pompes actionnées pneumatiquement, qui pompent un fluide hydraulique depuis une source de fluide hydraulique montée sur le vérin de levage vers le vérin hydraulique extensible, de façon à provoquer l'extension de chaque vérin de levage télescopique. Un mécanisme de commande peut être disposé pour actionner une ou plusieurs pompes actionnées pneumatiquement pour introduire du fluide hydraulique dans les vérins hydrauliques. L'invention concerne également des procédés d'utilisation et de fonctionnement.
Also published as
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