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. 03, 1986
Filed:
Nov. 18, 1983
Lawrence E Fink, Renton, WA (US);
Other;
Abstract
An LED (18) is spaced from and directed toward a photosensitive member such as a photoresistor (16). A shutter plate (38) positioned between the photoresistor (16) and the LED (18) varies the amount of light received by the photoresistor from the LED. The shutter plate (38) is connected to one end of a cantilever beam (20) which deflects in response to acceleration forces. The shutter plate (38) variably interferes with the amount of light the photoresistor (16) receives as the cantilever beam (20) deflects. The photoresistor (16) has a plurality of photosensitive grid lines (58) which change the resistance of the photoresistor in proportion to the number of grid lines which receive light from the LED (18). The photoresistor (16), LED (18), and cantilever beam (20) are connected to electrically conductive mounting pins (14) which are inserted in a base member (12) and extend downwardly therethrough.