Patents by Inventor Richard A. Sikra

Richard A. Sikra 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: 7507890
    Abstract: A drum lug assembly, comprising, in combination first and second lugs attachable to the outer side of the drum shell, the lugs interconnected and defining aligned bores, and a receiver for a tensioning rod floatably coupling to at least one of the lugs.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: March 24, 2009
    Assignee: Drum Workshop, Inc.
    Inventor: Richard A. Sikra
  • Patent number: 7468480
    Abstract: Bongo drum apparatus that includes a stand, an integrating interconnection between the bongo drums, and a clamp for clamping the stand to the integrating interconnection.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: December 23, 2008
    Assignee: Drum Workshop, Inc.
    Inventor: Richard A. Sikra
  • Patent number: 7395994
    Abstract: A percussion instrument arm adapter, comprising in combination, a support at one end of an arm, the support including rod clamping elements positioned for relative adjustment to clamp a rod, structure for effecting the relative adjustment, one of the elements swingable relatively away from the other element when at least part of the structure is moved out of element adjusting position, and against a shoulder or shoulders resisting such movement.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: July 8, 2008
    Assignee: Drum Workshop, Inc.
    Inventor: Richard A. Sikra
  • Patent number: 7351902
    Abstract: For use in actuating a cymbal, there being an upright support stand and an upright rod associated with the stand and operatively attached to a cymbal to move it substantially vertically as the rod is moved substantially vertically, in response to operation of a foot activated pedal unit, the combination comprising an enclosure associated with the stand and being openable, the rod projecting downwardly to a rod end connection in the enclosure, the rod end connection movable longitudinally up and down relative to the enclosure, an endwise movable cable projecting upwardly to a cable end connection in the enclosure, the cable end connection having releasable coupling to the rod end connection to be longitudinally movable up and down therewith, thereby moving the rod up and down, and a cable guide carried by the enclosure to enable longitudinal release of said coupling and lateral removal of the cable end connection from the enclosure upon opening thereof.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: April 1, 2008
    Assignee: Drum Workshop, Inc.
    Inventor: Richard A. Sikra
  • Patent number: 7268283
    Abstract: Apparatus for clamping two drums to an upright support, the drums each having a projecting bracket or brackets, defining at least one through opening, comprising a carrier body connectable to the upright support, posts on the carrier body receivable in bracket openings, and adjustable mechanism on the carrier body for displacing at least one of the posts relative to at least one bracket opening to clamp at least two posts against the brackets. Certain posts may be carried by structure connected to the drums; and certain post receiving openings may be carried by the upright support.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: September 11, 2007
    Assignee: Drum Workshop, Inc.
    Inventor: Richard A. Sikra
  • Patent number: 6559368
    Abstract: The cushioned percussion device, comprising in combination, a projecting support for the device; a pivot for said support, and spring structure located to yieldably resist pivoting of the support.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Drum Workshop, Inc.
    Inventors: Richard A. Sikra, Donald G. Lombardi
  • Patent number: 6307136
    Abstract: In a percussion instrument actuating assembly, the combination comprising a carrier structure; first and second pedals carried to extend in generally side-by-side relation and to independently pivot; first rotary axle structure operatively connected to the first pedal to be rotated thereby, and having rotary motion output locations spaced apart along the axle structure and via which rotary motion is transmissible to actuate different percussion instruments in response to selected pivoting of the first pedal; and a second axle structure operatively connected to the second pedal to transmit motion for actuating an additional percussion instrument, in response to selected pivoting of the second pedal.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: October 23, 2001
    Assignee: Drum Workshop, Inc.
    Inventors: Richard A. Sikra, Donald G. Lombardi
  • Patent number: 6278046
    Abstract: Percussion instrument drive apparatus, comprising in combination first and second drives associated with first and second percussion instruments, respectively, and a foot actuated pedal and a pedal driven driver selectively movable to drive one or the other of the first and second drives, as the pedal is actuated, the driver being carried independently of the pedal.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: August 21, 2001
    Assignee: Drum Workshop, Inc.
    Inventors: Richard A. Sikra, Donald G. Lombardi
  • Patent number: D580477
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 11, 2008
    Assignee: Drum Workshop, Inc.
    Inventors: Richard A. Sikra, Scott J. Donnell