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:
Nov. 02, 2010
Filed:
Jan. 27, 2009
Scott Jones, Boalsburg, PA (US);
James M. Lombino, Ashfield, MA (US);
Susan Yake Kenagy, Dix Hills, NY (US);
Scott Jones, Boalsburg, PA (US);
James M. Lombino, Ashfield, MA (US);
Susan Yake Kenagy, Dix Hills, NY (US);
Steinway Musical Instruments, Inc., Waltham, MA (US);
Abstract
A piano, playable in an acoustic mode and a silent mode, includes a series of keys, a series of key actions, and a series of rotatable hammers. Each key action is actuated by depression of a corresponding key. Each hammer defines a forward throw direction and has a corresponding string. The hammers are driven by corresponding key actions transferring forces from corresponding keys. The piano includes a hammer stopper system that has a blocking rail slidably disposed forward of the hammers. A linear actuator moves the blocking rail along a substantially linear path between a first position, allowing unobstructed movement of the hammers, and a second position blocking at least one hammer from striking its corresponding string. The linear actuator moves the blocking rail to the first position for acoustic play and to the second position for silent play.