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Publication numberUS3621191 A
Publication typeGrant
Publication dateNov 16, 1971
Filing dateApr 21, 1970
Priority dateApr 21, 1970
Publication numberUS 3621191 A, US 3621191A, US-A-3621191, US3621191 A, US3621191A
InventorsWoodrow D Cornwell
Original AssigneeWoodrow D Cornwell
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrically heated footwear and handwear
US 3621191 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

United States Patent [72] Inventor Woodrow D. Cornwell 2,210,618 8/1940 De St. Cry. 128/402 Middlelown, Va. 22645 2.243.506 5/1941 Mitchell 1. 18/18 [21] App 30,497 2,633,846 4/1953 Wray 128/256 1 Filed p 21,1970 2,985,860 5/1961 Morey 219/528 x [4 1 Patented ,19 3,292,628 12/1966 Maxwell et 111..v 219/21 1 x 3,360,633 12/1967 Weisberger 1. 219/211 3,417,229 12/1968 Shomphe et al. 219/528 54] ELECTRICALLY HEATED FOOTWEAR AND HANDWEAR Prunary Exammerc. L. Albntton 1 Claim, 7 Drawing Figs. Attorney-John B. D1ckman,l1l

[52] U.S.Cl 219/211,

7 36/2.6,128/381, 12 ABSTRACT: Electrically heated footwear and handwear is [51] [Ill- Cl H051) 1/00 disclosed in which an ionomer plastic insulating layer is fined [50] Fteld of Search 219/211, into a Shoe or other footwear and a mitten or other handwear 527, 529, 538, 549; 36/26; [28/379, 381383, f conventional construction. A long stranded heating wire is 402 embedded in a heat-conducting plastic member which is posi- Rae ences Cited tioned beneath the insole of the footwear and within the insulating plastic cover of the mitten. The wires are connected to a UNITED STATES PATENTS source of low-voltage electricity for resistance heating in 2,025,950 12/1935 Kurtz 219/211 X order to maintain the footwear and handwear at a comfortable 2,206,029 7/1940 Daniels 128/595 temperature.

L 1 l l2 1 l I I 1 1 l l l l 1 l ELECTRICALLY HEATED FOOTWEAR AND HANDWEAR BACKGROUND OF THE INVENTION l. Field of the Invention The present invention relates to heated footwear such as shoes and boots and heated handwear such as mittens and gloves.

2. Description of the Prior Art Prior art electrically heated footwear and handwear utilized solid short lengths of wire for low-voltage heating or used high voltage for heating longer lengths of stranded wire.

SUMMARY OF THE INVENTION The present invention is directed to the heating of mittens and shoes and like handwear and footwear by providing an insulating layer of ionomer plastic within which, in the case of the handwear, is a layer of heat-conducting plastic having a stranded heating wire embedded therein. In the case of the footwear the heating wire layer is provided on the sole only of the shoe.

The primary object of the invention is to provide electrically heated handwear and footwear which maintains a uniform temperature on the feet and hands of the user.

Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front elevation of a complete mitten constructed in accordance with the invention;

FIG. 2 is an enlarged fragmentary transverse cross section taken along the line 22 of FIG. 1 looking in the direction of the arrows;

FIG. 3 is a rear elevation of the heating insert for the mitten of FIG. 1;

FIG. 4 is a side elevation of a shoe constructed in accordance with the invention;

FIG. 5 is a top plan view of the heating insole of the shoe illustrated in FIG. 4;

FIG. 6 is an enlarged fragmentary transverse sectional view taken along the line 6-6 of FIG. 4 looking in the direction of the arrows; and

FIG. 7 is an enlarged fragmentary vertical sectional view of the heating insole.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings in detail wherein like reference characters indicate like parts throughout the several figures the reference numeral I0 indicates generally a mitten constructed in accordance with the invention.

The mitten 10 includes an outer covering 11 having a thumb portion 12 and a finger portion 13 both integrally joined to a wrist portion 14. The outer covering 11 is completely lined with a relatively thin layer of ionomer foam plastic 15 to serve as insulation for the mitten 10.

A heating insert 16 includes a finger portion I7 having a thumb portion 18 integrally connected thereto. The insert 16 has an inner surface 19 to contact the hand within the mitten I0 and a layer 20 of heat-conducting plastic within which stranded heating wires 21 are molded. The heating wires 2] extend throughout the insert 16 and terminate in a plug 22 which can be connected to a source of low-voltage electricity. The insert 16 is a hot pad which can be worn either in contact with the back or the front of the hand to suit the wearer.

Referring now to FIGS. 4 through 7 the reference numeral 30 indicates generally a shoe incorporating another embodiment of the invention.

The shoe 30 includes a sole 31, heel 32 and an upper 33, all formed of conventional material. The sole 31 and upper 33 are completely lined with an ionomer foam plastic layer 34 to insulate the shoe 30. An inner linin 35 protects the foam plastic layer 34 and provides a smoot inner surface for contact with the foot of the wearer.

A pad 36 formed of heat-conducting plastic is shaped to the sole of the shoe 30 and has a stranded heating wire 37 molded therein. The wire 37 is connected to a plug 38 mounted on the upper 33 for connection to a source of low-voltage electricity.

The pad 36 is fitted into the shoe 30 beneath the insole 38 as can be seen in FIG. 6. It should be understood however that the pad 36 can also be inserted in a shoe on top of the insole 38 should this be desired.

The mitten and shoes of the present invention maintain a uniform heat on the hands and feet of the wearer without undue electric power requirements.

Having thus described the preferred embodiments of the invention it should be understood that numerous structural modifications and adaptions may be resorted to without departing from the spirit of the invention.

What is claimed is:

l. A mitten comprising a hand-encompassing cover, an ionomer foam plastic liner for said cover, an electrically heated pad insert removably positioned within said cover for contact directly with the back or palm of the hand of the user. said pad including a stranded electric heating wire embedded in a relatively thin sheet of heat-conducting plastic.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2025950 *Jul 5, 1934Dec 31, 1935Andrew KurtzFoot warming device
US2206029 *Dec 24, 1935Jul 2, 1940Claude H DanielsDeformable foot support for shoes
US2210618 *Sep 15, 1939Aug 6, 1940St Cyr William H DeMethod and apparatus for treating the skin
US2243506 *Aug 12, 1939May 27, 1941Byron V MitchellUnitary vulcanizing element
US2633846 *Dec 18, 1950Apr 7, 1953Wray Carl ETherapeutic moist heat foot treatment apparatus
US2985860 *Dec 7, 1959May 23, 1961Templeton Coal Company IncElectric heating tape and method of manufacture
US3292628 *Dec 3, 1963Dec 20, 1966Maxwell Janey PearlElectric therapeutic glove
US3360633 *Apr 20, 1965Dec 26, 1967Weisberger DavidPortable electrical foot heating apparatus
US3417229 *Oct 14, 1965Dec 17, 1968Sanders Associates IncElectrical resistance heating articles
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3859496 *Nov 15, 1973Jan 7, 1975Comfort Prod IncHeated inner sole and battery case for use in boot construction
US3867611 *Oct 2, 1973Feb 18, 1975Raymond C RileyBoot and shoe drying device
US3906185 *Nov 7, 1974Sep 16, 1975Comfort Prod IncHeated insole construction
US3946193 *Aug 5, 1974Mar 23, 1976Giese Erik OHeated inner sole and battery case for use in boot construction
US4061898 *Aug 16, 1976Dec 6, 1977Redken Laboratories, Inc.Heat cap
US4080971 *Jul 30, 1976Mar 28, 1978Rory Ann LeeperBattery powered foot warming insole
US4343490 *Oct 17, 1980Aug 10, 1982Adamson Jerome ESafety ski pole grip
US4440421 *May 18, 1982Apr 3, 1984Adamson Jerome ESki pole grip with electrical heating
US4706764 *Aug 1, 1986Nov 17, 1987Ingersoll-Rand CompanyTwo piece down hole drill chuck
US5160828 *Mar 6, 1990Nov 3, 1992The United States Of America As Represented By The Secretary Of The NavyElectromagnetic warming of submerged extremities
US5476492 *Feb 23, 1994Dec 19, 1995Unrug; SophiaBody warmer for therapeutic purposes containing whole herb seed
US5620621 *Apr 19, 1994Apr 15, 1997Sontag; Richard L.Glove having heating element located in the palm region
US5935157 *Sep 18, 1997Aug 10, 1999Harmon; SusanTherapeutic cold pack for hand, wrist and forearm
US7002104Jan 20, 2004Feb 21, 2006Akadema, Inc.Heated baseball glove/mitt and method of heating a baseball bat handle
US7506927Dec 20, 2007Mar 24, 2009Angeline Kinlaw WilliamsAromatherapy chair for natural bodily relaxation, rejuvenation and healing
US8793815Sep 1, 2013Aug 5, 2014Lillie P. Kelley-MozsyDetachable reconfigurable modular pocket assemblage
US9314064 *Dec 12, 2014Apr 19, 2016Schawbel Technologies LlcHeated insole with removable heating assembly
US9538806Apr 9, 2014Jan 10, 2017Schawbel Technologies LlcShoe with a heated insole
US9538807Apr 9, 2014Jan 10, 2017Schawbel Technologies LlcAssembly for inclusion in a heated insole
US9548618Dec 27, 2012Jan 17, 2017Schawbel Technologies LlcHeated insoles
US9549586Apr 9, 2014Jan 24, 2017Schawbel Technologies LlcBattery for use with a heated insole
US9572397May 22, 2015Feb 21, 2017Schawbel Technologies LlcHeated insole with removable assembly
US20050028401 *Aug 4, 2004Feb 10, 2005Johnson John AnthonyApparel with optionally heated cavities
US20050155961 *Jan 20, 2004Jul 21, 2005Gilligan Lawrence J.Heated baseball glove/mitt and method of heating a baseball bat handle
US20070089323 *Oct 26, 2005Apr 26, 2007Ta Lai Sporting Goods Enterprise Co., Ltd.Electrothermal massage shoes
US20070095808 *Nov 2, 2005May 3, 2007Lacy Edward IiiElectrically heated clothing article
US20080189826 *Feb 13, 2008Aug 14, 2008George DilliHot mitts
US20090054959 *Aug 24, 2007Feb 26, 2009Felker Charles ETherapeutic foot and leg warmer
US20090242539 *Apr 1, 2008Oct 1, 2009Wassel Damian AHeating System
US20110162127 *Dec 6, 2010Jul 7, 2011Curtis Frederick AllenGolf glove hand warmer compartment
US20120179226 *Jan 6, 2011Jul 12, 2012Graham R WilliamTherapeutic and Safety Grip Device
US20150001199 *Aug 20, 2012Jan 1, 2015Dongmin JeonCustomized Shoe Insole and Customized Sandal
US20150150338 *Dec 12, 2014Jun 4, 2015Schawbel Technologies LlcHeated insole with removable heating assembly
USD772546Jun 8, 2015Nov 29, 2016Schawbel Technologies LlcInsole
Classifications
U.S. Classification219/211, 2/158, 36/2.6, 607/111
International ClassificationH05B3/34, A43B7/02
Cooperative ClassificationA43B7/025, H05B2203/003, H05B2203/014, H05B3/342, A41D19/01535, H05B2203/036
European ClassificationA41D19/015D2, A43B7/02B, H05B3/34B