Tripart sectional helmet with planar springs
Document Type and Number:
United States Patent D839489

Thorpe, Keith (Baxter, TN, US)
Murphy, Harold L. (Cookeville, TN, US)
Application Number:
Publication Date:
Filing Date:
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Thorpe Keith
Murphy Harold L
Primary Class:
Other Classes:
International Classes:
(IPC1-7): 2902
Field of Search:
D29/102-107, D29/122, D29/108-111
US Patent References:
9578917Protective helmets2017-02-28Cohen
20170050593Protective Helmet2017-02-23Phipps et al.
9549582Protective helmet2017-01-24Lara
9408423Impact reducing sport equipment2016-08-09Guerra
9314063Football helmet with impact attenuation system2016-04-19Bologna et al.
9314062Shock absorbing layer with independent elements, and protective helmet including same2016-04-19Marz
9314061Protective helmet cap2016-04-19Hanson et al.
20160029730S.A.T. (Spring Absorption Technology)2016-02-04Day
20150135413FOOTBALL SAFETY HELMET2015-05-21Mayerovitch2/414
8881315Protective helmet2014-11-11Desjardins et al.
8572767Protective helmet2013-11-05Bryant2/171.1
D570055Protective helmet liner2008-05-27FerraraD29/122
D521191Helmet liner2006-05-16BergerD29/122
6378140Impact and energy absorbing product for helmets and protective gear2002-04-30Abraham2/411
5819318Head covering with adjustable sunshade visor and inside ventilation1998-10-13Tse2/10
5035009Protective helmet and liner1991-07-30Wingo, Jr.2/414
4370759Face guard mount for helmets1983-02-01Zide2/424
Primary Examiner:
Gholson, Randall H.
Attorney, Agent or Firm:
Ridgeline Venture Law
Christopher, Kevin

1. The ornamental design for a tripart sectional helmet with planar springs, as shown.


FIG. 1 is a perspective view of a first embodiment showing our new design for a tripart sectional helmet with planar springs;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is an underside view of the top elevation thereof.

The broken lines shown in the drawings depict unclaimed environment only and form no part of the claimed design.