US969849A

US969849A - Portable electric heater.

Info

Publication number: US969849A
Application number: US49835909A
Authority: US
Inventors: Frank L Dyer
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-05-25
Filing date: 1909-05-25
Publication date: 1910-09-13
Anticipated expiration: 1927-09-13

Description

P. L. DYER. PORTABLE ELECTRIC HEATER.

APPLIUATION FILED MAY 25, 190 9.

Patented Sept 13,1910.

IZZW: A

UNITED STATES OFFICE.

FRANK L. DYEB, or moNcrcLAm, NEW JERSEY.

PORTABLE ELECTRIC HEATER.

ee e...

- Specification of Letters Tateiit. f P atented Sept. 13, 1910- Application fli May 25, 1909. s 'r iii} m l. 498,859.

To'a'Z-Z whom it army-concern:

Bait known that 1,; Fanatic- L. DYER, a

citizen of the United-States," and .a resident of Montc'lair, in the county of Essex and 'able's'ource of electric current when it is de- State of NeW'Jersey have made a certain 11 and useful Invention in Portable Electr c'Heaters, of which the "following is a dese i tion.

y invention relates to electric heaters,.

and my objeojt-isto rovide a simple, compact and eflicient device which may be'easily carried abou'tin ones pocket or With ones' belongings, and easily connected to any suits'iie'd'to he'at Water or any desired substance. Other objects of my invention-'1 reside in the construction of; parts and: combinations o;f' elem en ts as" will be described in the-following specification and" more particularly pointed out in-the appended-claims. 1- eferr-ingto the accompanying drawings, 1'" hick-the TsameVreferenee*characters' are" ugTifl 'tl-iroughoutto denote corresponding parts,'-Figure lrepresents' a central vertical section through a form of my device, the ianip plug, connecting cord and heating 'coil {bei-I'i shown in; elevation; Fig. 2-represents a si" e elevation of'the' sameg'Fig. 3 repre-- -s ents==ahorizontal section on line 3 3 of F ig-.'- 1;-'Flg ..4: reptesents a cross section on 'lif e-4'' 1"o-i -Fi-g;- 2 looking downwardly in the dir ection of'the-arrow, andFig? 5 repre seats-a Embdi-ficat-ion, partly in verticalsec-g tion-andpartly-in elevation:

Referring to the drawings, the heater 1 is io'rmed with a convoluted or fluted surface. 2 for the purpose of providing as extensive smear-radi t ng surface as possible; EI-his heater 1-=is'-*" hollow 'and inthe process 'of' 'n'iafiilfiaot'ure, tli6 O0I6"2""llaVlI1g the heating coil Wrapped about the same is inserted thereinffThe-erids of the heating coil 3=extend -upwardly and are connected to the Whicliivr liot iiftjerfefe with the conduction .5

' a ree-e *9- t i y;

-ing posts-4 and 5. p

In assembling the device, thecoi l'3 mount ofthe heater .1. ET-hecoilfi isof such a. matGIlRIBHd SOLOQ IlStTHGtQ/d :as to have a high resistance and "rapidly generate aconsider able amount of heat on. the passage .of an electric current therethrough.

The" body 1 of the heater is preferably of metal and isa good-conductor of heat.

'The hollow tubular casing8 isv provided axially in line with the heater 1 for containing' the electric connection 9 and the' plug v10 attached to. theend thereof when the device is not in use. The-connection 9 is in the form of a flexible cord, which ma be coiled up within the tubular casing 8 w en not in use, and which may be extended therefrom to allow the plug 10 to be inserted-within a 'convenientlamp socket or similar source of current. The lower end of the cord ..9 is. at-

' may be provided with a. knurled edge, as

shown, for'convenience-in screwing or unserewingithe'same.

As shown, the heater body 1 and'casing- 8 are one integral structure, the heater 1, hows ever,. beinlg connected to. casing 8 at? several separated oints only, 'whereby theau gier surface of eater 1 is efiective'for the ra' -iation of heat as. well as the other surfaces of said heater; As shown, the connection-be 1- tween -the heater and-the. hollow icasing :8

may'take'the form of two metal conduits :12 and 13-at diametrically opposite points; the ends of the heating coil 3 extending through these conduits in their ed on ocre zis first inserted'throughthe'up er end'of'casing 8 and the electric insulatngmaterial 7 inserted in position betweenthe. same and the boreof the'heat'er-Q The 'e onduits.12 and 13" may then be formed with the upper ends of the coil extending upwardly thro'u h thesame. Inf-forming the blank for t e shell of. the device, the inetalmey be cut away to separate the heater drone the casing-=8, metal being left, however, for the necks 17 and 18 as shown'at opposite points, with additional metal on passage to the hind sesss iswfth s e n? This Miditional metal may be cut loose toform flaps,

and the latter bent inwardlyand brazed or otherwise secured together at the ends to.

' form the conduits .12 and 13, the inner sides and 18'.

of which are shown in the drawings as 17 Morev of the insulating material 7 is then placed above the coil 3 and the metal plate 14 placed in position above that and razed or otherwise secured in position to close-the upper end of the heater 3 and furnish' the upperheat radiating surface, the

.. said plate 14 fitting around the conduits 12 end, in which the. plug 10. maybe place and 13. These conduits 1-2 and 13 arethen filled with insulating material around the conducting wire extending therethrou h, and the insulating late 6 carrying binding posts 4 and'5 to w ich the ends of cord -9 are connected, lowered into position. The outer surface of tube 8 is provided-with an the plate dis adapted to rest. 1n assembling vinwardly directed shoulder 15 upon which the device .the p ate 16 which is similar in shape to i.

ate 14 is thenv secured in position toclose e' lower end of tube 8, insulating material bei first secured in position to fill the connection 9 extended-and the heater. I

placed in a vessel Of'WRtBI or any other substance which it is desired. to quickly heat. In the modificationshown in Figs. 5, the

hollow chamber 8 inwhi'chthe coil 9fhasbeen described as coiled is dispensed with,

thecoil in this'case being-wrapped for coni Yenience around the outside the device when not in use. As shown, the tube 8 is formedwith the hollow head 19 at its u per .convenienceswhen the .deyiceis out :ot use,

the fplu' being. illustrated as; inserted; into the hea with the end thereof which screws into a lamp socket directed T downwardly,

and: 'iven several turns in en agcment with that eaded bore of the hea 19 to secure it firmly in place. The connections 3' from the heating. coil 3r1are brought up through ithe-bore of the-tube 8, ends are attached to the .closed lower ends .of short tubes orsockets 20,- preferably of .copper, the :upper ends of which-o en into :the .head -19. The space surroun and at their upper ing the wiresB', or conduits in which they me be fsplaced, and the-copper sockets 20, is lled with, insulating:material.- The cable 9' carryingtherttvo necessary wire connections is connected at one end to plug 10 and is wrapped around. the outside of tube 8, the cable ending in jacks :21, to each of which one of the wires in the cable 9 is connected.

- havingl for When it is desired to use this apparatus, the plug 10 is unscrewedjrom its container 19 and screwed into a lamp socket, and the jacks 21 stuck into the sockets 20, thus completing the circuit for the heatm coil 3. In both forms of the heater, a 1 surfaces are preferably smooth and (polished, so that they ma be readily cleane and the device rendere sanitar when used broths, milk or t e like. It is obvious that various changes may be made in my devicewithout departing from the spirit of the invention.

Having now described my invention, what I claim and desire to protect by Letters Patent is as follows:

"1. In a portable. heater, the combination of a heater a heating coil within said heater, a plug and connections between and joined to the same and said coil, and a chamber for inclosing said plu and connections when not in. use integ'ra with said heater, substantially as described.

2. In a portable heater, the combination of a casing, a plug in closed within and electric connections therefrom coiled within said casing and adapted to be extended therefrom, a heater secured to said casing a heat radiatin extended surface and a eating coil secure within said heater and joined to said connections, substantially as described.

3. In a portable heater, the combination of a casing, electric connections coiled within said casing and adapted to be extended therefrom, a heater secured to said casing at several separated points only having. a curved heat radiatingextended surface almost entirely surrounding the same, anda heating coil secured within said heater and joined to said connections, substantially as described. v

.4. Ina portable heater, the.combination of a tubular casing, a plug and electric connections inclosed within said casing and "adapted to be extended therefrom, .a heater axially in line with said casing and secured thereto at several separated points only, and

having a curved heat radiating surface surrounding the same except at the points of attachment, and, a heating coil-secured within sai'dheater andqoined toisaid connections substantially as described.

-5. n .a ortable heater, the combination of a. close hollow, heater. body having a polished heat-radiating surface, coil within said body,

gained to said coil and extending, from said dy, and means for retaining; the conneca heating tion in com act-formwhemnm ii -use se-.

cured to sai body and axially in line therewith, substantially as described. y

6. In a portable heater, the combination for heating 1 20 a flexible connection of a heater, a heating coil withinthe same, I

, said coil, and mee'ns for retaining said plug this 24 day of May 1909.

a. plug and connections t herefroin joined to This specification signed end witnessed and connections in compact .form when not in use, comprising an elongated body and an inclosure for said plug, secured to and Witnesses: axially in line with said heater, substan- DYER SMITH, tially as described. JOHN M. OANFIELD.

FRANK L. DYER.