Dana J Mazzaglia

US Patent:

8541671, Sep 24, 2013

Filed:

Mar 21, 2012

Appl. No.:

13/426583

Inventors:

Kirk Burgett - Sacramento CA, US
Jamie Marks - Haverhill MA, US
Dana Mazzaglia - Haverhill MA, US

Assignee:

Wessell, Nickel & Gross - Sacramento CA

International Classification:

G10C 3/18

US Classification:

84222

Abstract:

Lost motion compensation device is a mechanical device that rigidly and pivotally connects the rest rail of an upright piano to the front end of the whippen of an upright piano to cause the two member to rotate in unison as the rest rail is rotated by depressing and releasing the soft pedal on an upright piano.

US Patent:

8614382, Dec 24, 2013

Filed:

Mar 21, 2012

Appl. No.:

13/426353

Inventors:

Kirk Burgett - Sacramento CA, US
Jamie Marks - Haverhill MA, US
Dana Mazzaglia - Haverhill MA, US

Assignee:

Wessell, Nickel & Gross - Sacremento CA

International Classification:

G10C 3/18

US Classification:

84218, 84240, 84249

Abstract:

A damper action for an upright piano that comprises a springed tab on the damper lever that “ratchets” or gives way or folds away in one direction and does not in the other, to provide retention when the spring tab passes by the longitudinal ridge on the sostenuto rod in one direction and non-retention when the spring tab passes by the longitudinal ridge on the sostenuto rod the other direction. The ratchet aspect of the spring tab uses tension from the damper spring and does not require a separate spring to apply tension to yield the ratchet effect.

US Patent:

20130186250, Jul 25, 2013

Filed:

Jan 19, 2012

Appl. No.:

13/354245

Inventors:

Kirk Burgett - Sacramento CA, US
Jamie Marks - Haverhill MA, US
Dana Mazzaglia - Haverhill MA, US

International Classification:

G10C 3/16

US Classification:

84242

Abstract:

A piano action flange with an open-slotted rail attachment feature that is a slot-shaped void completely through the piano action flange, running in the longitudinal direction of the piano action flange, with width slightly larger than the outer diameter of the thread end the flange screw but smaller that the head diameter of the flange screw, where the slot-shaped void is open on one end, breaking through the end of said piano action flange, to leave the slot-shaped void open and accessible from the end of the piano action flange.

US Patent:

20130186251, Jul 25, 2013

Filed:

Jan 19, 2012

Appl. No.:

13/354251

Inventors:

Kirk Burgett - Sacramento CA, US
Jamie Marks - Haverhill MA, US
Dana Mazzaglia - Haverhill MA, US

International Classification:

G10C 3/16

US Classification:

84242

Abstract:

An upright piano main action rail with a thinner cross section and relocated lower front surface so that when the main action rail is installed an the upright piano, the lower front surface of upright piano main action rail resides in the same location as the lower rear surface of prior art upright piano main action rails. An upright piano main action rail also has all whippen mounting holes located on the lower front surface instead of the lower rear surface as is traditional.

US Patent:

20130186252, Jul 25, 2013

Filed:

Jan 19, 2012

Appl. No.:

13/354240

Inventors:

Kirk Burgett - Sacramento CA, US
Jamie Marks - Haverhill MA, US
Dana Mazzaglia - Haverhill MA, US

International Classification:

G10C 3/18

US Classification:

84254

Abstract:

A hammer butt for an upright piano with a half-conical hammer shank hole located on the top of said hammer butt which has a cylindrical-shaped cross section as viewed from the side of said hammer butt flange and a trapezoidal-shaped cross section as viewed from the front of said hammer butt, with the bottom of said half-conical hammer shank hole representing the short side of said trapezoidal-shaped front cross section.