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. 12, 1976
Filed:
Dec. 02, 1974
Applicant:
Inventors:
Assignee:
K. Oras Oy, Rauma, SF;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; E03C / ; A61L / ;
U.S. Cl.
CPC ...
219201 ; 4206 ; 21-2 ; 134 19 ; 138 33 ; 219301 ; 219535 ;
Abstract
The connecting pipe portion between the outlet pipe and the drain pipe of a wash basin is surrounded by an electric heater for heating the interior of the connecting pipe portion to a temperature of about 80.degree. to 100.degree.C to prevent microbes from rising from the drain pipe into the outlet pipe. The connecting pipe portion comprises a metal ring having a heating coil wound thereon and being thermally insulated from the outlet pipe and drain pipe by insulating rings. The outlet pipe may include a conical stub pipe projecting into the ring and spaced therefro by an air gap.