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. 02, 1990
Filed:
Jun. 08, 1989
Applicant:
Inventors:
Junzo Aisa, Shizuoka, JP;
Mituo Yamamoto, Shizuoka, JP;
Assignee:
Ishikawa Tekko Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
73308 ; 200 / ; 3404502 ; 335303 ;
Abstract
A magnetic float for a magnetic sensor wherein magnetized magnetic powder is dispersed into a foamed synthetic resin, and the magnetic flux thereof acts on a reed switch in the magnetic sensor to turn on or off the reed switch. The magnetic powder is substantially wholly coated with the synthetic resin.