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:
Feb. 18, 1992
Filed:
Oct. 09, 1990
Yatsuse Saijo, Tokyo, JP;
Fernandes Co., Ltd., , JP;
Abstract
A tremolo device for an electric guitar comprises a movable block, to which the strings are anchored, which is swingable about a swing axis perpendicular to the strings. The block has counter balance tensile springs for providing a tension on all of the strings, whereby an equilibrium is established between the tension imposed by the counter balance tensile springs and the tension imposed on all of the strings, whereby the block is kept at a neutral position. A tremolo handle is rotatably attached to the block, and is rotatable between an operative position at which the handle can be manually operated by a player, to produce a movement of the block about the swing axis and change the tension imposed on all of the strings, and an inoperative position at which the handle cannot be accidentally touched by the player. The device comprises a lock mechanism for locking the block at the neutral position at a middle location thereof, and the lock mechanism is actuated by rotating the handle from the operative position to the inoperative position.