WO2026095848 - A HYDRAULIC SYSTEM AND METHOD ARRANGED TO PREVENT UNINTENDED MOVEMENT BY CONSTRUCTION EQUIPMENT
National phase entry is expected:
Publication Number
WO/2026/095848
Publication Date
07.05.2026
International Application No.
PCT/SE2025/010017
International Filing Date
27.10.2025
Title **
[English]
A HYDRAULIC SYSTEM AND METHOD ARRANGED TO PREVENT UNINTENDED MOVEMENT BY CONSTRUCTION EQUIPMENT
[French]
SYSTÈME HYDRAULIQUE ET PROCÉDÉ CONÇU POUR EMPÊCHER UN MOUVEMENT INVOLONTAIRE PAR UN ÉQUIPEMENT DE CONSTRUCTION
Applicants **
HUSQVARNA AB
Inventors
VARSHOSAZ, Masoud
Priority Data
2451084-4
04.11.2024
SE
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
SPRO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2382 | |
| EPO | Filing, Examination, Granting | 14172 | |
| Japan | Filing, Examination, Granting | 2459 | |
| South Korea | Filing, Examination, Granting | 2691 | |
| USA | Filing, Examination, Granting | 6740 |
Total:
28,444
Contact Us
Abstract[English]
A hydraulic system (170, 300, 400, 500) for controlling one or more hydraulic actuators (330, 330a, 330b) of movable members (110, 120, 130) on construction equipment (100), the hydraulic system comprising a control unit (150), a hydraulic tank (310), a hydraulic pump (320) arranged to generate hydraulic flow to hydraulic control valves (340, 340a, 340b) of the one or more hydraulic actuators (330, 330a, 330b), and an unintended movement prevention system (350, 410, 420, 510, 520, 540), where the control unit (150) is arranged to generate an electric pressure enable signal (360) in response to detecting an activated state of a remote-control device (200) associated with the construction equipment (100), where the unintended movement prevention system (350) is arranged to divert at least part of the hydraulic flow from the hydraulic pump (320) at a location upstream from the hydraulic control valves (340, 340a, 340b) to the hydraulic tank (310) in response to loss of the electric pressure enable signal (360).[French]
L'invention concerne un système hydraulique (170, 300, 400, 500) pour commander un ou plusieurs actionneurs hydrauliques (330, 330a, 330b) d'éléments mobiles (110, 120, 130) sur un équipement de construction (100), le système hydraulique comprenant une unité de commande (150), un réservoir hydraulique (310), une pompe hydraulique (320) disposée pour générer un écoulement hydraulique vers des soupapes de commande hydraulique (340, 340a, 340b) du ou des actionneurs hydrauliques (330, 330a, 330b), et un système de prévention de mouvement involontaire (350, 410, 420, 510, 520, 540), l'unité de commande (150) étant disposée pour générer un signal d'activation de pression électrique (360) en réponse à la détection d'un état activé d'un dispositif de commande à distance (200) associé à l'équipement de construction (100), le système de prévention de mouvement involontaire (350) étant disposé pour dévier au moins une partie de l'écoulement hydraulique de la pompe hydraulique (320) à un emplacement en amont des soupapes de commande hydraulique (340, 340a, 340b) vers le réservoir hydraulique (310) en réponse à la perte du signal d'activation de pression électrique (360).