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:
May. 24, 1983
Filed:
Jan. 25, 1980
Keniti Okura, Tokorozawa, JP;
Shinji Yasuda, Tokorozawa, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An MC type phono cartridge which is simple in construction and easy to assemble and in which the stylus tip may be easily interchanged. The cartridge includes a pair of magnet units and an associated vibration unit. Included in the vibration unit is a cantilever with a stylus tip fixed to one end thereof with a disc-like member fixed to the other end of the cantilever. A string is attached at one end to the cantilever and at the other end to a string member holder which is in turn attached to the supporting member. A damper is disposed between a disc-like member and the supporting member. A pair of induction coils are disposed on the disc-like member. Each of the two magnet units includes a pair of adjacent magnets disposed with like magnetic poles confronting each other with the confronting portions of the magnets spaced from the induction coil at a preset gap. The vibration unit is detachable from the magnet unit for ease of stylus tip interchange.