Wavin B.v.

Other

Berend Jan Van Dijk

Marco Van Der Scheer

Bernhard Lodder

Albertus A Oostenbrink

Hans Boer

Roelof Koopman

Jan A Van Houten

Marcel Roelfsema

Adriaan Paulen

Willem Johan Elzink

Johannes Hendrikus Gerhardus Snijders

Hendrik Severiens

Günter Bernhard Brümmer

Harm Jantius Marcel Jager

Frede Madsen

Harm Jantinus Marcel Jager

Franciscus Johannes Maria Alferink

Alwin Huisjes

Marco Wilfred Goris

Richard Poppe

Jeannette Mulder-Grootoonk

Bastiaan Vos

There is provided a plastic infiltration unit comprising: a top deck, at least one pillar extending from the top deck, wherein the at least one pillar includes a plurality of compartments, wherein at least one of the compartments is laterally enclosed, and wherein the top deck and the at least one pillar are produced in one piece. There is further provided a plastic base plate for use with a plastic infiltration unit. There is further provided a plastic infiltration unit side plate. There is yet further provided a plastic in filtration system for deployment underground comprising a plastic infiltration unit and a plastic base plate, wherein the at least one pillar of the plastic infiltration unit is received at the receiving location of the plastic base plate.

Plastic infiltration unit and system

There is provided a plastic infiltration unit comprising: a top deck which extends in a plane, at least one pillar extending from the top deck for supporting the top deck, wherein the top deck is provided with at least one integrated connector arranged to connect the plastic infiltration unit with another at least one integrated connector, of another plastic infiltration unit in a side by side arrangement.

Plastic infiltration unit, a system comprising a plurality of plastic infiltration units

A pipe section provided with a socket end part for accommodating a spigot end part of a second pipe section, the spigot end part having a sealing ring and the socket end part configured with an obliquely tapered part having areas of varying dimension for deforming the sealing ring to differing extent along the circumference of the sealing ring when the socket end part engages the spigot end part.

Pipe section provided with a socket end part

Coupling sleeve for connection of a branch pipe to a main pipe

Process and apparatus perforating tubular plastic foil with a laser beam

Electroweldable pipe sockets and fittings by forming a first tube being internally sized and cooled and on the outer side provided with a groove, having preferably a raised edge part, winding an electrical conductor in the groove, and the outer side of the first tube with electrical conductor is coated with plastics thereby maintaining the internal size of the first tube by internal cooling and sizing. In this continuous process the speeds of the first tube and of the continuous tube leaving the coating extrusion stage are equal. In the coating extrusion stage a negative pressure is maintained between the first tube and the coating to be applied.

Method of locating an electrical conductor between a first extruded tube

Growing community of inventors

Slagharen, Netherlands

Berend Jan Van Dijk