WO2025254579 - A DUST EXTRACTOR WITH IMPROVED DUST HANDLING FUNCTION
National phase entry is expected:
Publication Number
WO/2025/254579
Publication Date
11.12.2025
International Application No.
PCT/SE2025/050503
International Filing Date
26.05.2025
Title **
[English]
A DUST EXTRACTOR WITH IMPROVED DUST HANDLING FUNCTION
[French]
EXTRACTEUR DE POUSSIÈRE À FONCTION DE TRAITEMENT DE POUSSIÈRE AMÉLIORÉE
Applicants **
HUSQVARNA AB
Inventors
SJÖBERG, Axel
KÜSEL, Robert
WENNBERG, Elon
SUBRAMANYA, Shreyasu
RASMUSSON, Torbjörn
NYBERG, Christian
Priority Data
2450605-7
05.06.2024
SE
2450607-3
05.06.2024
SE
2450608-1
05.06.2024
SE
2450609-9
05.06.2024
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 | * |
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| Number of Office Actions | * |
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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 |
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* 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 | 3219 | |
| EPO | Filing, Examination, Granting | 25104 | |
| Japan | Filing, Examination, Granting | 3079 | |
| South Korea | Filing, Examination, Granting | 4216 | |
| USA | Filing, Examination, Granting | 12140 |
Total:
47,758
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Abstract[English]
A dust extractor (100) comprising at least one cyclone tank (110), a prefilter arrangement (120), an essential filter arrangement (130), a blower system (140), and a control unit (150) arranged to control a solenoid arrangement configured to actuate a pressure release valve (220, 310, 320) of the dust extractor (100), where the pressure release valve (220) is arranged to connect an internal volume (V) of the cyclone tank (110) to an external volume (E) of the dust extractor (100), the solenoid arrangement comprising a solenoid device (340) and a remanence mitigation circuit (155) configured to generate a reverse current through a coil of the solenoid device (340) after actuation of the solenoid device (340) by a forward current through the coil.[French]
L'invention concerne un extracteur de poussière (100) comprenant au moins un réservoir à cyclone (110), un agencement de préfiltration (120), un agencement de filtre essentiel (130), un système de soufflerie (140), et une unité de commande (150) conçue pour commander un agencement de solénoïde configuré pour actionner une soupape régulatrice de pression (220, 310, 320) de l'extracteur de poussière (100), la soupape régulatrice de pression (220) étant conçue pour raccorder un volume interne (V) du réservoir à cyclone (110) à un volume externe (E) de l'extracteur de poussière (100), l'agencement de solénoïde comprenant un dispositif à solénoïde (340) et un circuit d'atténuation de rémanence (155) configuré pour générer un courant inverse à travers une bobine du dispositif à solénoïde (340) après actionnement du dispositif à solénoïde (340) par un courant direct à travers la bobine.