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:
Jun. 22, 1982
Filed:
Jun. 30, 1980
Sandro Arabian, Vaduz, LI;
Europtool Trust, Vaduz, LI;
Abstract
A soap solution dispenser for use in public and private lavatories, washrooms and so forth, has a refill cartridge for aqueous soap solution. This exchangeable refill or supply cartridge has a flexible connecting member mounted upon a hollow plug element of a solution level indicator. During use of the dispenser, first the cartridge is emptied, then the solution level indicator, and only then a reservoir within the dispenser. Thus, the contents of the cartridge can be used up completely, while the dispenser still remains operative because of the reservoir volume, until such time as the cartridge can be conveniently replaced. For higher contrast indication of the solution level, the indicator can contain an optical body or element which is immersed in the soap solution. The optical element only becomes totally internal reflecting when the refill cartridge is empty. Prisms can be provided so as to optimize the use of existing sources of light, and optical filters can be employed for an indication in color.