US 1845432 A
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Description (OCR text may contain errors)
Feb. 16, 1932. W. L. McR g ErAL 1,845,432 DEVICE FOR VOLATILIZING 0R BURNING INCENSE, NEnIcANENTs, AND THE LIKE Filed Sept. 23. 1929 15 IT 4 I8 20 3 2"? 5 4. 21 5 ,1- 4 22 n 0 l4: J[||-] INVENTORJ faifer OGWZ EQZ duff jredirz'ck F. Coafe A TTORNEYS Patented Feb. 16, 1932' UNITED STATES PATENT OFFICE war/rm L. new AND FREDERICK 000KB, 0] EUCLID VILLAGE, OHIO; SAD) C0083 ABSIGNOB '10 I. nnomvow, OI CLEVELAND, OHIO DIVICI I'OB VOLA'I'EIZIHG OB BURNING LICENSE, HDICAIENTS, AND THE Lm Application fled September as, me. Serial 1;. seem.
This invention relates to devices for volatilizing or burning incense, medicinal substances, such as asthmatic inhalants, and other materials adaptable to usage insimilar manner; and it is among the objects of the invention to provide a construction which is convenient and readily ada table to various conditions of usage. Anot er ob'ect is the provision of a heatin element w ich is eflicient and compact. A urther object is the PIOVI- sion of a controlling means for the heating element, rendering the same automatic in usage. Other objects and advantages will appear as the description proceeds.
To the accomplishment of the foregoing and related ends, the invention, then, consists of the features hereinafter fully described,
' and particularly pointed out in the claims, the
followin description and the annexed drawings setting forth in detail certain structure embodying the invention, such being illustrative however of but one of the various ways in which the principle of the invention may be emplo ed.
Insai annexed drawin Fig. 1 is an isometric viewof an embodiment of the invention; Fig. 2 is a vertical section thereof,.on slightly arger scale; Fig. 3 is a similar fra entary section, showing the open or charging position of the device; 1*" 4 is an inverse lan view showing the un t ierneath construction of the top of the device; Fig. 5 is a plan view of a detail; and Fig. 6 is a wiring diagram.
Referring more particularly to the drawings, there 1s shown a casin 2, which may be of any convenient form an size, and which advanta eously carries electric contact elements a aptable to ready attachment to a suitable line connection. Such contacts may be of type as desired, prong-receiving or prong-projecting. Preferably, the contacts may take the form of prongs 3 analogous to the standardized plug prongs and such construction is then capable of being directly inserted into a portable plug connection or where a convenient outlet is available in the wall, the prongs 3 may be directly plugged therein, thus serving not only to provide the electric contact but to support the device as well. The prongs 3 are' mounted on suitable insulation blocks 4 secured to the casing, and binding posts or screws 5 afford means for attaching the interior connecting wires.
Mounted within the casing, and preferably also within a refractory housing or tube 6 is a heating element 7. Such heating element may advantageously be of the resistance ty comprising a coil of resistance wirecapa le of enduring the necessary temperature conditions, and desirably in the form of a grating or spiral or any convenient sha e such that material charged thereonto may e supported while being consumed. The refractory tube 6 may be supported in any convenient manner, for instance by a bracket 8 extending from the wall of the casin Underneath, a' slide or small tray 9, with andle 10, may be arranged on runways of desired extent, such that any ash dropping down from the heating or incinerating element may collect for convenient removal.
Preferably, the top of the casing is provided with a closure capable of easy manipulation for charging. In the form illustrated, this comprises a door or lid 11 with openings 12. ir access openings 13 are also provided in the lower part of the casing, for instance in the slide 9. A spring a may be applied such as to normally maintain the lid in closed position.
As a current control we may employ a switch of any suitable form, mounted on the casing or separate, so as to enable the operator to apply the current to the heatin element as and when required. Instead of such hand-operated switch, where desired the charging-closure or lid may also be employed to operate the switch to connect the heating element in circuit. As one advantageous arrangement for this, the lid being pivotally mounted or hinged as at 14 may have an extension 15 projecting down therebelow, and such extension may carry a contact arm 16 which may be in circuit by a wire connection 17 from the binding post 5. Mounted on the under side of the top of the casing is ,a stationary contact 18 having a resilient fingerprojection in the path of the movable contact arm 16 when the latter is carried forwardly by raising the lid, the alignment being such that the end 19 of the contact arm 16 will engage the stationary arm 18 when in the open or charging position. If desired, a post 20, conveniently in the form of an adetween contacts 18 and 19, such that the contact 19 on swinging forwardly may just strike against more or less of the post 20 andwith the yielding of the slightly resilient arm 16 in the further movement of the lid, be slightly retarded until it slips past the ppst 20 with a snap and engages the contact 18.
eversely, as the lid is closed, the post 20 again serves to retard and hold the contact 19 against stationary contact 18 until the lid has been turned down further than would otherwise have been the case. With such adjustment, the timing of the contact may be set closely within such limits as may be desired. The contact 18 may be mounted on an insulating block in anydesired manner.
Under most usages, the heating element 7 need not exceeda few turns of wire, and if the current supply is of a voltage to exceed the requirements for such, a ballasting resistance, for instance in the form of a windin 21 may be conveniently disposed on the re ractory tube 6, such resistance being in series with the heating coil 7 and serving to cut down the current to the heater requirements. Of course, where large capacity installations are involved, such ballasting may be omitted. With a connecting wire 22 on the binding post of the prong, the circuit through the ballast and heating coil is completed.
In use, a mass of the material to be volatilized or burned is charged into the device by opening the lid 11. The material drops upon the heating element 7, which has been quickly raised to red heat by the flow of the current, the contact 19 having been swung by the lid into engagement with the stationary contact 18, allowing the current to flow from the binding post of one of the prongs 3 to the connecting wire 17 and the contacts 19, 18, to the heating element, and ballast resistance if such be employed, the circuit being completed by wire 22 to the other binding post and prong. With a suitably proportioned heater element, the time interval occasioned by the movement of the lid 11 and the incidental I lag provided by the switching mechanism in conjunction therewith, suflices to heat the element to a temperature requisite to consume the material charged. The current being cutoff by the breaking of the contact on closure of the lid, only such current drain as is actually required has to be reckoned with, and the device is correspondingly exceedingly economical.
It will thus be seen that a device readily portable and convenient of usage under various circumstances encountered, is had, and
justable screw, may be interposed at a point whether employed for perfuming and deodorizing, or for asthmatic inhalants, or insect repellent usage, the device may be inserted into any available plug, either portable or in the nature 015 a fixed convenience outlet. The current requirements, as noted, can be held at the minimum requisite to consume the material operated upon, and thus the device is inexpensive in maintenance.
Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the means stated in any of the following claims, or the equivalent of such, be employed.
We therefore particularly point out and distinctly claim as our invent1on:
1. In a device of the character described, a casing, an electric heating element and material-receiving member therein, and contacts carried by the casing for co-acting with a wall fixture to support said casing and also provide the service connection for the circuit of said heating element.
2. In a device of the character described, a casing, an electric heating element, a refractory housin thereabout and presenting an air-inlet opening below, a closure over said heating element, and a switch actuated by movement of said closure.
3. In a device of the character described, a casing, an electric heating element, a closure affording access to said heating element, a switch controlling the current to said heating element, and regulable means for retarding the operation of said switch.
4. In a device of the character described, a casing, an electric heating element, a closure aifording access to said element, a contact carried by said closure and adapted to en- 105 gage a fixed contact in circuit with said heat ing element, means for retarding the engagement and disengagement of the movable contact with the fixed contact and means for regulating the amount of retardation.
5. In a device of the character described, a casing, an electric heating element in the form of a grating, a closure affording access to said heating element, prongs projecting from said casing, and an automatic switch actuated by said closure for connecting the heating element in circuit with the prongs.
6. In a device of the character described, a casing, an electric heating element, a refractory housing thereabout, and a ballasting resistance on said housing and in circuit with said heating element.
7 In a device of the character described, a casing, an electric heating element, a re- 125 fractory housing thereabout, a lid affording access to said heating element, prongs projecting from said casing, a contact movable with said lid and adapted to engage a fixed contact in circuit with said heating element, 130
and a ballasting resistance on said refractory I housing.
8. In a device of the character described, a casin ,an electric heating element in the form 0 a spiral gratin a refractory tube thereabout, a charging 1d afi'ording access to said heating element, a removable ash tray therebeneath, plug-in prongs projecting from said casing, a contact niovable' with said lid to engage a fixed contact, andsa ballasting resistance in series with said heating element.
9. In a device of the character described, a casing, a heating element in the form of a spiral grating, a'refractory tube thereabout, a charging lid afi'ordin access to said heating element, a remova le "ash tray therebeneath, plug-in prongs projecting from the back of said casing, acontact arm movable 'with said lid and adapted to engage a fixed contact in series with said heating element, an adjustable post in the path of said movable contact adapted to retard the engagement and disengagement thereof with the fixed contact, and a ballasting resistance on said refractory tube in series with said heating element and said contacts and prongs.
Signed by us this 21st day of September,
WALTER L. McRAE. a FREDERICK'R. COOKE.