US 12,503,164 B2Granted

Trailer stroke extender and hydraulic trailer system

AssigneeMammoet Holding B.V.

InventorsRonald Adrianus Cornelis Hoefmans, Quintin De Jager

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Abstract

The present disclosure pertains to a trailer stroke extender for use in a hydraulic trailer system, adapted to be arranged between a first hydraulic trailer and a second hydraulic trailer. The system comprises a cradle frame and first and second hydraulic cylinders. The cradle frame has a first cradle-to-beam connector adapted to be connected to the first hydraulic trailer and has a second cradle-to-beam connector adapted to be connected to the second hydraulic trailer. The first and the second cradle-to-beam connectors are spaced apart from each other in a longitudinal direction of the trailer stroke extender. The first and second hydraulic cylinders are adapted to move a trailer load in a vertical direction relative to the cradle frame over a single stroke length. The hydraulic cylinders are arranged in the cradle frame at a distance from each other in a lateral direction of the trailer stroke extender.

Claims16

Dependent claims

A trailer stroke extender for use in a hydraulic trailer system, wherein the trailer stroke extender is adapted to be arranged between a spine beam connector of a first hydraulic trailer and a spine beam connector of a second hydraulic trailer, the trailer stroke extender comprising:

a cradle frame comprising a first cradle-to-beam connector and a second cradle-to-beam connector, wherein the first cradle-to-beam connector is adapted to be connected to the spine beam connector of the first hydraulic trailer and the second cradle-to-beam connector is adapted to be connected to the spine beam connector of the second hydraulic trailer, the first and the second cradle-to-beam connectors being spaced apart from each other in a longitudinal direction of the trailer stroke extender;
and
a first hydraulic cylinder and a second hydraulic cylinder being adapted to move a trailer load in a vertical direction relative to the cradle frame over a single stroke length, wherein the first hydraulic cylinder and the second hydraulic cylinder are arranged in the cradle frame at a distance from each other in a lateral direction of the trailer stroke extender.

Dependencies are inferred from the claim text.

Facts

Application: 18/230,948Filed 7 Aug 2023
Priority: NL 20329777 Sep 2022
Published: US 2024/0075985 A17 Mar 2024
Granted: 23 Dec 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B60P 3/40
Vehicles adapted to transport, to carry or to comprise special loads or objects: for carrying long loads, e.g. with separate wheeled load…
B62D 21/14
Understructures, i.e. chassis frame on which a vehicle body may be mounted: of adjustable length or width
B60P 1/02
Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading: with parallel up-and-down…
B66F 3/26
Constructional features: adaptations or arrangements of pistons