초록 ▼

A filter element of sintered-together plastics particles having substantially the shape of a narrow, hollow box with two large, zigzag or corrugated first side walls, two narrow second side walls interconnecting the first side walls, a closed bottom side and an opposite open side, with the peaks and

A filter element of sintered-together plastics particles having substantially the shape of a narrow, hollow box with two large, zigzag or corrugated first side walls, two narrow second side walls interconnecting the first side walls, a closed bottom side and an opposite open side, with the peaks and valleys of the first side walls extending in the bottom side to the open side and the filter element, at the open side, having a head for attachment which is elongated and constitutes at least one flow passage, characterized in that the filter element comprises two unified halves each containing one of the first side walls that a foot of synthetic resin is cast on the bottom side, and that the head consists of synthetic resin and is cast on the first and second side walls such that it surrounds with a first part of its heights the first and second side walls on the outside and the projects with a second part of its heights beyond the first and second side walls so as to cover the same at the ends thereof, and in that the head forms in the second part of its height, in the at least one flow passage an, in terms of flow, advantageous transition from the zigzag or corrugated space confined between the two first side walls to a substantially rectangular cross-section of flow.

대표청구항 ▼

[ What is claimed is:] [1.]1. A filter element of sintered-together plastics particles having substantially the shape of a narrow, hollow box with two large, zigzag or corrugated first side walls, two narrow second side walls interconnecting the first side walls, a closed bottom side and an opposite

[ What is claimed is:] [1.]1. A filter element of sintered-together plastics particles having substantially the shape of a narrow, hollow box with two large, zigzag or corrugated first side walls, two narrow second side walls interconnecting the first side walls, a closed bottom side and an opposite open side, with the peaks and valleys of the first side walls extending in the direction from the bottom side to the open side and the bottom side being further provided with a foot, and the filter element, at the open side, having a head for attachment which is elongate and constitutes at least one flow passage, wherein:the filter element comprises two unified halves each containing one of the first side walls,the head and the foot are cast on of synthetic resin, with the head being cast on the first and second side walls such that the head surrounds with a first part of its height the first and second side walls on the outside and projects with a second part of its height beyond the first and second side walls so as to cover the ends thereof, andthe head forms in the second part of its height, in the at least one flow passage, a transition from the zigzag or corrugated space confined between the two first side walls to a substantially rectangular cross-section.