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:
Oct. 10, 1978
Filed:
Jul. 18, 1977
Applicant:
Inventor:
William P Reid, Long Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J / ;
U.S. Cl.
CPC ...
99306 ; 99317 ; 210481 ; 422266 ; 422277 ; 422 15 ;
Abstract
A funnel-shaped receptacle is temporarily positioned on the top of a coffee-making machine with its bottom outlet positioned to discharge into the heater tank of the machine. The interior of the receptacle is spanned by a disposable activated carbon filter and below the filter is a container of screen material filled with soluble phosphate granules. Replenishing water poured through the receptacle is first purified by the filter and is then treated with the dissolved phosphate to prevent calcium formation and corrosion in the heater tank.