Patents by Inventor Richard Douglas Stillwell

Richard Douglas Stillwell 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).

  • Patent number: 10360880
    Abstract: A percussive instrument mallet includes a molded head, a shaft having an optionally threaded nose, and a rigid insert fixed completely within the head. The insert has an inner profile including threads or other protrusions that mate with the nose of the shaft, and an outer profile that is embedded in the mold material. An outer portion of the insert includes a weighting ring that is also embedded in the mold material. The method includes selecting a tool with an optionally threaded nose and a central bore, threading or otherwise securing an insert onto the nose of the tool, supporting a weight ring on the insert; placing the threaded insert and weight ring in a mold, molding the head while over-molding the weight ring and insert, drawing air out of the head through the central bore, disengaging the tool from the insert, and attaching a mallet shaft into the insert.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: July 23, 2019
    Assignee: D'Addario & Company, Inc.
    Inventors: Elijah Navarro, Esteban Rodriguez, Richard Douglas Stillwell
  • Publication number: 20180322852
    Abstract: A percussive instrument mallet includes a molded head, a shaft having an optionally threaded nose, and a rigid insert fixed completely within the head. The insert has an inner profile including threads or other protrusions that mate with the nose of the shaft, and an outer profile that is embedded in the mold material. An outer portion of the insert includes a weighting ring that is also embedded in the mold material. The method includes selecting a tool with an optionally threaded nose and a central bore, threading or otherwise securing an insert onto the nose of the tool, supporting a weight ring on the insert; placing the threaded insert and weight ring in a mold, molding the head while over-molding the weight ring and insert, drawing air out of the head through the central bore, disengaging the tool from the insert, and attaching a mallet shaft into the insert.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 8, 2018
    Inventors: Elijah Navarro, Esteban Ynoa, Richard Douglas Stillwell