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:
Mar. 23, 1993
Filed:
Feb. 04, 1992
Chih-Kuo Sun, Taipei (10477), TW;
Other;
Abstract
A road sign includes: a rotor disk rotatably mounted on a frame having a retroreflective sheet formed on a first surface of the rotor disk capable of reflecting any incident light projecting onto the retroreflective sheet for forming a bright surface of said disk, and a light-absorptive surface formed on a second surface of the rotor disk opposite to the first surface capable of absorbing incoming lights projecting onto the light-absorptive surface for forming a dark surface of the disk, whereby upon a blowing of wind on the rotor disk, the disk will be rotated to subsequently orient the first bright surface frontwardly and then orient the second dark surface frontwardly, thereby causing a flashing operation for serving as an effective road sign.