Technisch Ontwikkelingsbureau Van Elten B.v.

Other

Elten Nederland B.v.

Elten Systems B.v.

Hugo V De Vries

Antonius Hurkmans

Gerrit Jan Van Elten

Pieter Rook

The invention relates to a method for laying a playable surface such as playing field, comprising the steps of forming a hard substrate, arranging on the hard substrate a layer of resilient and/or damping material, and arranging a top layer on the resilient and/or damping layer, wherein during or after arranging of the hard substrate and/or the reliant and/or damping layer air chambers are formed therein. The behavior of the playing field becomes more natural due to these air chambers, and excessive resilience and energy restitution are avoided. The air chambers can be formed for instance by creating recesses in the relevant layer from the top, or by removing material from the layer at different location after arranging thereof, for instance by melting or biological decomposition of inclusions. The invention also relates to playing field obtain by application of this method.

Method for laying a playable surface, for instance a playing field, and surface thus formed

The invention relates to an artificial turf with a backing and a large number of artificial grass blades which are fixed thereto, protrude substantially transversely thereof and are manufactured from plastic, and a fibrous, inherently damping material arranged between the artificial grass blades and connected to the backing or the blades. The fibrous, inherently damping material can herein be arranged in the form of a large number of blades which are connected to the backing and which likewise extend transversely of the backing, but less far than the artificial grass blades. The fibrous, inherently damping material can also take the form of a knit through which the artificial grass blades protrude and which can be formed integrally with the backing.

Artificial turf including damping material

A walking beam conveyor is described, comprising a static support for the objects to be conveyed, a back and forth drivable conveyor beam which may cooperate with a lifting and lowering device consisting of a plurality of separate mechanisms, and a support for the lifting and lowering mechanisms. According to the invention each lifting and lowering mechanism (3) consists of a free rotatable roller (26), which is continuously in contact with the conveyor beam (2) having at least one support member (28), and of a roller support (9) which is provided with at least one inclined running surface (18) for the free rotatable roller and with at least one bearing surface (19, 20) for the support member at both ends of the inclined running surface.

Walking beam conveyor

A conveyor system is described, adapted for application in a storage rack, consisting of a plurality of stories with a plurality of storage tracks (0) side by side in each story, each storage track (0) containing a conveyor device. The conveyor system is characterized in that each conveyor device consists of two or more and independently and separate working conveyors (2).

Conveyor device

Method of storing and afterwards collecting orders

A storage system for products using supporting units, consisting of a staging containing a number of storeys, on one side of the staging at least one supply-conveyor and at least one entry elevating device, which is movable in a longitudinal direction along the staging, as well as a device for placing the supporting units into the staging and on the other side of the staging at least one exit elevating device, which also is movable in a longitudinal direction along the staging and at least one exit conveyor. According to the invention, in each storey (4) of the staging (2) one or more conveyors (5) are mounted which are connectable to both sides of the staging with one driving device (11), which is movable vertically on the entry elevating device (9) and the exit elevating device respectively.

Storage system for products using supporting units

Storage system for products using supporting units, comprising a staging containing a number of storeys, on one side of the staging at least one supply-conveyor and at least one entry elevating device, which is movable in a longitudinal direction along the staging, as well as a device for the input of the supporting units into the staging and on the other side of the staging at least one exit elevating device, which also is movable in a longitudinal direction along the staging and at least one exit conveyor. In each storey of the staging one or more step conveyors are mounted, which at both sides of the staging are connectable with a single driving device, which is movable vertically on the entry elevating device and the exit elevating device respectively.

Growing community of inventors

Ermelo, Netherlands

Hugo V De Vries