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:
Nov. 13, 1990
Filed:
Sep. 14, 1989
Gotthard Chr Mahlick, Kronberg, DE;
Michael Borgmann, Solingen, DE;
Robert Krups Stifting & Co. KG, Solingen, DE;
Abstract
An electric steam iron, tea making machine of coffee making machine contains a supply of water softening agent which is contacted by tap water issuing from a container whereby the volume of the supply of softening agent increases when its water softening capacity is reduced or exhausted. A monitoring device generates signals when the supply of softening agent expands to indicate that a fresh supply must be inserted into the appliance. The supply can be confined in a bellows, and the monitoring device can be designed to generate visible signals in response to detected expansion of the bellows as a result of a reduction or exhaustion of the water softening capacity of the confined supply of softening agent.