Invention Grant
- Patent Title: Lifting device and a method of lifting a tubular pile
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Application No.: US17616119Application Date: 2020-07-02
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Publication No.: US11975947B2Publication Date: 2024-05-07
- Inventor: Jeroen Pieter Hendrik Van Leeuwen , Harm Daniël Van Der Laan
- Applicant: IHC HOLLAND IE B.V.
- Applicant Address: NL Sliedrecht
- Assignee: IQIP HOLDING B.V.
- Current Assignee: IQIP HOLDING B.V.
- Current Assignee Address: NL
- Agency: Mendelsohn Dunleavy P.C.
- Priority: NL 23436 2019.07.04
- International Application: PCT/NL2020/050435 2020.07.02
- International Announcement: WO2021/002750A 2021.01.07
- Date entered country: 2021-12-02
- Main IPC: B66C1/44
- IPC: B66C1/44 ; B66C1/56 ; E02D13/00

Abstract:
A lifting device for lifting a tubular pile comprises a hoisting member including a centreline, a plurality of engagement elements which are moveably mounted to the hoisting member at angular distance with respect to each other about the centreline and actuators for moving the respective engagement elements with respect to the hoisting member. The engagement elements are moveable in longitudinal direction of the centreline along respective guides of the hoisting member. The guides are inclined with respect to the centreline such that the engagement elements move in radial direction of the centreline when being moved in longitudinal direction of the centreline. The actuators are functionally interconnected such that under operating conditions the actuators move the engagements elements simultaneously until a first one of the actuators reaches a counterforce which is higher than a counterforce of a second one of the actuators, after which the second one of the actuators is moved further.
Public/Granted literature
- US20220242702A1 A LIFTING DEVICE AND A METHOD OF LIFTING A TUBULAR PILE Public/Granted day:2022-08-04
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