Patents by Inventor Steven T. Murray

Steven T. Murray 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).

  • Drumhead with extended collar
    Patent number: 8859869
    Abstract: A drumhead comprising a circular membrane having a flat central play region, a collar extending outwardly and downwardly from the play region, and an outer edge region extending from the collar. A hoop defines a circular channel in which the outer edge region of the membrane is retained. The collar has a convexly curved region having upper and lower ends spanning an included angle, with the upper end transitioning tangentially into the play region and a frustoconical skirt region flaring outwardly from the lower end of the curved region and transitioning into the outer edge area. The included angle of the convexly curved region is about 90 deg., and the skirt and outer edge region of the membrane frustoconically extend from the lower end of the curved region to the channel of the hoop, at a substantially uniform angle in the range of about 10 to 30 deg.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 14, 2014
    Assignee: D'Addario & Company, Inc.
    Inventors: Steven T. Murray, Richard K. Drumm
  • DRUMHEAD WITH EXTENDED COLLAR
    Publication number: 20140260893
    Abstract: A drumhead comprising a circular membrane having a flat central play region, a collar extending outwardly and downwardly from the play region, and an outer edge region extending from the collar. A hoop defines a circular channel in which the outer edge region of the membrane is retained. The collar has a convexly curved region having upper and lower ends spanning an included angle, with the upper end transitioning tangentially into the play region and a frustoconical skirt region flaring outwardly from the lower end of the curved region and transitioning into the outer edge area. The included angle of the convexly curved region is about 90 deg., and the skirt and outer edge region of the membrane frustoconically extend from the lower end of the curved region to the channel of the hoop, at a substantially uniform angle in the range of about 10 to 30 deg.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: D'ADDARIO & COMPANY, INC.
    Inventors: Steven T. MURRAY, Richard K. DRUMM
  • Mold and process for producing drumhead membranes
    Patent number: 6696007
    Abstract: A drumhead mold and process for making a plastic drumhead. The mold is structured to heat the drumhead collar area and maintain the battering surface cool to provide a drumhead with improved performance characteristics.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: February 24, 2004
    Assignee: Innovative Automation, Inc.
    Inventors: James D'Addario, Steven T. Murray
  • Automatic tube filling device and process
    Patent number: 5209044
    Abstract: An automated tube filling machine and process having a plurality of work stations, a rotating disc to deliver the tubes to the work stations and a central processing unit to control implementation of the work stations and rotation of the disc.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: May 11, 1993
    Assignee: Innovative Automation Inc.
    Inventors: James D'Addario, Steven T. Murray