Patent · US Expired

Pipe switch with externally arranged drive unit

US5207536A · kind A · utility

1Cited by

3References

11Claims

0Family size

Assignee

Waschle Maschinenfabrik GmbH · DE

Inventors

Walter Beirle · Ravensburg, DE
Martin Sindermann · Ravensburg, DE
Martin Frank · Hofheim, DE

Key dates

Filing date	Apr 13, 1992
Grant date	May 4, 1993
Priority date	—
Expiry date	Apr 13, 2012

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/1635
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A pipe switch for pneumatically conveying a material such as bulk material includes a housing provided with a first port, a second port extending coaxially with the first port and a third port having an axis extending at an angle of less than 90.degree. relative to the axis of the second port, with the housing accommodating a cock which extends between opposing side covers and by which the first port is selectively connectable with the second port and with the third port. In order to reduce a danger of accident and to allow easy access to the interior of the pipe switch, the entire drive unit for actuating the cock is connected to the pipe switch at one of the side covers, with all movable parts being housed within an external compartment defined by an outer wall mounted to the one side cover.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.