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:
Sep. 24, 2013
Filed:
Apr. 02, 2012
Scott Jones, Boalsburg, PA (US);
James M. Lombino, Ashfield, MA (US);
Susan Yake Kenagy, Dix Hills, NY (US);
Sue Guan Lim, Flushing, NY (US);
Scott Jones, Boalsburg, PA (US);
James M. Lombino, Ashfield, MA (US);
Susan Yake Kenagy, Dix Hills, NY (US);
Sue Guan Lim, Flushing, NY (US);
Steinway Musical Instruments, Inc., Waltham, MA (US);
Abstract
A piano hammer stopper system includes a stopper rail set comprising at least first and second stopper rail members, each movable between respective first positions allowing unobstructed movement of associated piano hammers and respective second positions stopping at least one associated piano hammer from striking any corresponding string. At least one drive shaft is rotatably coupled to one or both of the stopper rail members. A drive arm is attached to the drive shaft and engages a drive fulcrum. A travel guide directs movement of the first and second stopper rail members between respective first and second positions. Rotation of the drive shaft rotates the drive arm to engage the drive fulcrum for moving one or both of the first and second stopper rail members between respective first and second positions.