Cushioning device and spring floor system incorporating same

Exercise devices – Gymnastic – Projector

Reexamination Certificate

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Details

C482S023000, C482S030000, C482S031000

Reexamination Certificate

active

07993244

ABSTRACT:
A floor system (20) includes a plurality of cushioning devices (22) attached to a lower side (40) of a wood floor (32). Each cushioning device (22) includes a spring (46) that may be attached at each of its ends to first and second caps (48, 50). The spring (46) includes longitudinally aligned regions (58, 60) interposed between the caps (48, 50). The region (58) exhibits a lower spring rate (64) than a spring rate (66) of the other region60. In response to an imposed force, the first region (58) of spring (46) first compresses. When the imposed force is great enough, due to a user's weight, the second region (60) of spring (46) will then compress.

REFERENCES:
patent: 71169 (1867-11-01), Hayward
patent: 176174 (1876-04-01), French
patent: 214328 (1879-04-01), Vose
patent: 274715 (1883-03-01), Buckley
patent: 1450686 (1923-04-01), Klaasse
patent: 2992443 (1961-07-01), Winikoff
patent: 4120489 (1978-10-01), Borlinghaus
patent: 4426076 (1984-01-01), Palmer
patent: 5277010 (1994-01-01), Stephenson et al.
patent: 5647183 (1997-07-01), Counihan
patent: 6044606 (2000-04-01), Hamar
patent: 6070381 (2000-06-01), Blumer
patent: 6158185 (2000-12-01), Counihan
patent: 6230460 (2001-05-01), Huyett
patent: 6488600 (2002-12-01), Gordon
patent: 6598365 (2003-07-01), Abraham et al.
patent: 6931808 (2005-08-01), Hamar
Spring Floors 101—The Basics of the Spring Floor, downloaded Jan. 7, 2008, 4 pages, www.theamericangym.com/Floorinfo.htm.
McNeal, Jeni R., et al., Muscle Activation Characteristics of Tumbling Take-offs, Sports Biomechanics, vol. 6(3), Sep. 1, 2007, pp. 375-390, http://dx.doi.org/10.1080/14763140701491393.
Coventry, et al., Hitting the Vault Board; Implications for Vaulting Take-off—a Preliminary Investigation, Sports Biomechanics, vol. 5(1), Jan. 2006, pp. 63-76, Sports Biomechanics and Engineering, US Olympic Committee, Colorado Springs, CO USA.

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