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. 12, 1999
Filed:
Dec. 04, 1997
Paul Nicholas, Burbank, CA (US);
Rhonda Nicholas, Burbank, CA (US);
Other;
Abstract
A low-cost refractometer for determining whether or not a beverage has been sweetened with sugar. The refractometer has an elongated transparent body with a prism at one end and either an eye piece or a light source at the other end. A drop of the beverage to be tested is put on the face of the prism and a diffuser is closed over it to spread the liquid into a thin sheet and to diffuse the light entering the prism face. The user looks through the eye piece at the remote end and because of a light block, light only shows through at the eye piece if there is sugar in the drink. Alternatively, a light may be directed at the eye piece end and if light is visible through the diffuser, the sample has sugar and if there is no light showing at the diffuser, the sample is essentially sugar-free.