The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 1988
Filed:
Apr. 27, 1984
Robert Dernedde, Frankenthal, DE;
Hans-Joachim Franke, Grunstadt, DE;
Peter Havekost, Bobenheim-Roxheim, DE;
Christian Klepp, Frankenthal, DE;
Klein, Schanzlin & Becker Aktiengesellschaft, Frankenthal, DE;
Abstract
A thermal barrier which is interposed between the casing of a pump and the housing of a motor has a first section which resembles a spool and includes a first flange sealingly connected to the casing, a second flange sealingly connected to the housing and a hollow cylindrical core spacedly surrounding the pump shaft between the two flanges. The first section serves primarily or exclusively to establish a seal between the pump casing and the motor housing, and the thermal barrier has a second section which takes up stresses and further serves as a heat insulating and/or heat dissipating device. The second section is removably installed in the space between the two flanges of the first section and spacedly surrounds the core. The second section may be constituted by hollow cylindrical walls, one or more stacks of washers or rings, one or more annuli of parallel tubes, bars, rods, ribs or a combination of such elements. The original second section can be replaced with another second section exhibiting different heat-insulating properties and/or a different resistance to mechanical stresses when the conditions under which the pump and motor assembly is used change sufficiently to warrant replacement of the second section.