U-joint for double pedal

Details U-joint for double pedal U-joint for double pedal

2007-09-05

2009-12-15

Enad, Elvin G (Department: 2832)

Music

Instruments

Drum and cymbal beaters

C464S136000

Reexamination Certificate

active

07633000

ABSTRACT:
A drum pedal assembly for connecting a first pedal to a support holding a beater arm may include a telescoping transmission shaft having yokes attached to shaft ends, yokes having bosses, universal joints rotatably attached to bosses and using trunnions, second yokes having bosses attached to universal joints using additional trunnions. The second yokes may rotatably attach a drive assembly rotatably attached to first pedal and an attachment arbor attached to beater arm to facilitate rotation of beater arm when first pedal is depressed. Configuration of assembly, including that of universal joints, may help reduce backlash or vibration in assembly.

REFERENCES:
patent: 5574237 (1996-11-01), Yanagisawa
patent: 6137040 (2000-10-01), Hoshino
patent: 6166312 (2000-12-01), Brewster et al.
patent: 6570076 (2003-05-01), Kjellgren
patent: 6590147 (2003-07-01), Kassabian
patent: 6881151 (2005-04-01), Jantz
patent: 2003/0226442 (2003-12-01), Dennis et al.
patent: 2004/0060421 (2004-04-01), Yun
patent: 2004/0144198 (2004-07-01), Gatzen
patent: 2004/0157668 (2004-08-01), Bigelow et al.
Stock Drive Products/Sterling Instrument, E-Product Manager website, available at https://sdp-si.com/eStore/, last viewed Sep. 11, 2007.
Stock Drive Products/Sterling Instrument, Universal Joint Product Finder, p. 7-5, available at http://www.sdp-si.com/D790/HTML2/D790C07004—2.html, last viewed Sep. 11, 2007.
Pearl Drum double pedal, available at http://www.pearldrum.com/p2000-2-bc.htm & http://www.pearldrum.com/p2000-2-bc—Irg.htm. last viewed Sep. 11, 2007.
Yamaha double pedal, available at http://www.yamaha.com/drums/drumproductdetail.html?CNTID=544626&CTID=5040585&AFLG=N, last viewed Sep. 11, 2007.
Belden Universal Joints, Needle Bearing Universal Joints, available at http://www.beldenuniversal.com/pdf/Needle—Bearing—Universal—Joints.pdf, last viewed Sep. 20, 2007.
Image of Belden universal joints, received Sep. 14, 2007.

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