Patents by Inventor Richard A. Rawson

Richard A. Rawson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Professional upright piano action
    Patent number: 8937235
    Abstract: A vertical or upright piano action includes a key bed, a key frame, a wippen, a damper action, a hammer action, a repetition lever, a sustain mechanism, sostenuto mechanism, and an una chorda or action shift mechanism. Butt directly engages damper, improving response to professional standard. Touch resistance is unchanged by sustain mechanism.
    Type: Grant
    Filed: April 20, 2013
    Date of Patent: January 20, 2015
    Inventor: Christopher Richard Rawson
  • Professional Upright Piano Action
    Publication number: 20140311314
    Abstract: A vertical or upright piano action includes a key bed, a key frame, a wippen, a damper action, a hammer action, a repetition lever, a sustain mechanism, sostenuto mechanism, and an una chorda or action shift mechanism. Butt directly engages damper, improving response to professional standard. Touch resistance is unchanged by sustain mechanism.
    Type: Application
    Filed: April 20, 2013
    Publication date: October 23, 2014
    Inventor: Christopher Richard Rawson
  • Piano key leveling device and method
    Patent number: 7683248
    Abstract: A keyboard musical instrument includes a key, a balance rail, and a key leveling tab. The key leveling tab is permanently mounted on the balance rail. The key leveling tab is non-resonating and has a varying thickness.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: March 23, 2010
    Inventor: Christopher Richard Rawson
  • Piano key leveling device and method
    Publication number: 20080121089
    Abstract: A keyboard musical instrument includes a key, a balance rail, and a key leveling tab. The key leveling tab is permanently mounted on the balance rail. The key leveling tab is non-resonating and has a a varying thickness.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 29, 2008
    Inventor: Christopher Richard Rawson
  • Bending tool
    Patent number: 4304117
    Abstract: A tool for bending rod-like articles such as bendable insulated electrical wire, said tool having a shaft with a sleeve rotatably mounted thereon; a center post of a three post bending combination at one end of said sleeve; a first, radial bar fixedly mounted on and projecting from said shaft; a first, outer post mounted on the radially outer portion of said bar in substantially parallel, substantially opposing relationship with said center post; a second, radial arm projecting from said sleeve; a second, outer post mounted on the radially outer portion of said second arm in substantially parallel, substantially opposing relationship with said center post; a manually grippable, first handle fixedly attached to said sleeve and projecting laterally from the rearward end thereof; and a manually grippable, second handle, mutually offset relative to the first handle, fixedly attached to said shaft and projecting laterally from the rearward end thereof whereby application of manually applied torque to said handles
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: December 8, 1981
    Inventor: Richard A. Rawson