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Publication numberUS2840213 A
Publication typeGrant
Publication dateJun 24, 1958
Filing dateJun 23, 1954
Priority dateJun 23, 1954
Publication numberUS 2840213 A, US 2840213A, US-A-2840213, US2840213 A, US2840213A
InventorsAustin Gilmour
Original AssigneeAustin Gilmour
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rewarding and educational device for developing a child's habits
US 2840213 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



' A CHILD'S HABITS 2 Sheets-Sheet 2 Filed June 23, 1954 INVENTOR. Avg TIN GILMO UR erf 106/ Ml HTIORNEK ,creasehis savings.


Application June 23, 1954, Serial No. 438,806

9 Claims. (CI. 194-4) This invention relates to a rewarding and educational device for developing a childs habits, and more particularly to a device which encourages an orderly conduct and gives the child the incentive of areward to be earned by the performance of his daily tasks.

When a child reaches the age of doing things personally, such as cleaning his teeth, brushing his shoes, combing his hair and picking up. his toys, there often develops an antagonism towards these simple tasks and the parent has a problem in developing needed habits. A failure todo the small daily chores may develop a harmfulcomplex in the child. Also, if the parent satisfies the childs desire to buy ice cream" or candy by'merely handing him a coin for the purpose, this gives the child a wrong viewpoint of life; whereas he shouldbe taught that it is his duty to earn his rewards ratherthan; to be constantly the recipient of gifts. If there isthe incentive for earning something which he wants, the routine of the daily tasks may be sufiiciently instilled in the child so that it will become a habit.

In accordance with my invention, I propose to give the child the visual evidence of a coin. to be obtained as a future award upon his performing certain set tasks. This is accomplished. by a device which he may operate periodically to move the coin through increments towards a delivery point, but only as eachtask is performed, so

that upon the completion of the assigned duties, he will obtain the coin. This device may be so constructed that the coin is moved by special tokens correspondingwith the assigned tasks and delivered to the child after completion of all the tasks, or .the coin may be stored in a safety bank which may be opened only under the supervision of the parent. V

The primary objectofthis invention is to satisfy such requirements and to provide a device in which av coin is displayed on a movable member but is not accessible, and whereby the coin may be periodically moved toward a goal by means of tokens furnished separately for the completion of each of the several tasks. 1

A. further object isto provide a device of this type inv which the coin moving. mechanism can be operated only by means of a set of visible tokens which individually represent the completion of the several intended tasks.

A still further object is to provide a locking mechanism for a device of this type in which the coin award and the tokens inserted into the device for moving, the coin are held behind a lock which requires the parents operation before the tokens are restored for future use and the child may obtain the coin.

Another object is to 'providea device of this type in which the coin may be ultimately delivered to and held in a storage receptacle or bank upon the completion of the tasks, and so givethe child a' visual evidence of accumulated wealthand inculcate in him' adesire toin- A further object is to provide a device of this general 2,840,213 Patented June 24, 1958 held in locked positions;

Fig. 2 is a similar'view on a reduced scale showing the combination lock in an unlocking position;

Fig. 3 is a fragmentary detail of a different'form of lock for the coin and tokens; V

Fig. 4 is a fragmentary section on the line 4 -4. of Fig. 1.;

Fig. 5 is a fragmentary section on the lines-5 of Fig. 1.;

Fig. 6 is an enlarged fragmentary section on'the line 66 of Fig. l; and

Fig. 7 is a fragmentary perspective view of the locking slides of Fig. 3.

In accordance with my invention, I have provided a device in which a coin is stored in a movable holder and moved periodically through fixed increments toward a discharge position by means of tokens which are individually received by a child for each assigned task that has been performed. The coin is movable through a predetermined number of positions corresponding, with the number of tokens that are to be earned, so that when the last token has been applied for moving the coin, the latter will be released. In a simplified construction, the coin'may be released directly toth'e child, but-v in the form illustrated, the coin may be either released or deposited in a special bank where a plurality ofthe coins maybe accumulated and are preferably held in full sight. The

construction involves mechanism whereby the coinmay be moved through only a single increment'of space by each token, so that all of the tokens must be used; This requires the storage of. each token in a receptacle after its use, sothat it cannot ordinarily be reused'before the full. number of taskshave been satisfied. Hence, both the rewarding coin and the used tokens are held behind a lock and. are releasable only when the lock has been operated by theparent. V Referring primarily to Figs. 1 and 2, the device comprisesv a, rotary wheel 10 pivotally mounted on a pivot pin 11 which is carried by abottom board 12 and a top board 13 between which the wheel 10 is fitted for its rotation. .The wheel 10 has a circular hole 15 therethrough of a size adequate for carrying a coin 16 and sliding it around over. the closely positioned bottom 12 from the starting position shown by the location of the coin in the hole 15 of Fig. 1 to the finish position of Fig. 2 formed by the upper end of a shallow groove 17 in vthe bottom 12 which is deep. enough to permit the coin to slide out of the. hole 15. The top cover 13-is provided witha seriesv of evenly spaced circular openings 18 which are smaller thanthe coinbutare suthcient in size to permit the child to see the coin as it traverses through the several'positions indicated by these openings. The bottom 12 and the cover 13 are preferably made'of a plastic or paper board or other suitable strong material of light weight, and the wheel 16. is about as thick as the'coin or thinner. The bottom board 12 may. be cut away as indicated by the circular broken line in Fig. -l to provide a space within which the wheel may rotate. Opposite the. wheel, the boards or walls 12 and 13, are spaced only a little more than the thickness of, the wheel,

and must remain in its pocket 15' until it reaches the groove 17. A hole is provided in the upper board in the position of the pocket shown in Fig. 1, which permits the coin to be inserted only at this one place.

The wheel 10 is provided with a series of projecting teeth shaped to provide right angular notches 21 therebetween, There is one tooth and associate'd notch for each one of the circular openings 18. These'notches and teeth are so arranged that the wheel 10 may be rotated by means of tokens inserted through an opening 26 in the cover 13 and into the upper vertical end of a shallow groove 27 .having parallel side walls and a flat bottom cut in the bottom plate. 12. The token is preferably a square shaped plate of plastic or other suitable material having athickness and a width which permits it to slide freelyin the groove 27 beneath the cover 13. The upper vertical portion of the groove is so located that the token 25 may be inserted through opening 26 inthe top plate '13 and slid along the groove into engagement with a wheel tooth 20 and cause the wheel to be turned. The wheelis moved through the angular distance between two notches and the token travels from the starting position 'shown in Fig. 1 to a pointwhere the .coin 16 then shows in the next adjacent opening 18 in the cover 13. The tooth 20 cannot be moved any farther by that particular token, because the groove 27 has a horizontal portion 28 so located that the tooth movement stops when the token has reached the downwardly limited position defined thereby. The child must slide the token'away from the wheel and along the horizontal portion of the groove. From that point, the token may be then slid into the elongated vertical passage 29 to a lower' horizontal passage with inwhich the tokens are ultimately stored. Theopening 26 is a little larger than the token,and the cover 13 is provided with a slot 32 narrower than the token and located over the groove 27 throughout its length, sothat the child may insert'his finger therethrough and slide the token along without being able to remove the token.

Thus, when the child has performed a given task, such as brushinghis teeth, he is givena token shown in Figs. 1 and. 2' as having thereon the representation of a tooth brush. He inserts that token through the slot 26, and with his finger moves the token as far as it can go downwardly and thus rotates the wheel through a single notch, after which the token is moved across the horizontal' slideway 28 and into the vertical slideway 29. This device is customarily hung on the wall so that the passage 29 is vertical and the passages 28 and 30 are horizontal.

A special lock is provided which will prevent the child from moving the wheel by an outside implement; As indicated in Fig. l, the slot 32 in the cover 13 is narrow and the wheel is concealed between this cover portion.

The adjacent teeth, as above stated, have right angular surfaces. forming the notch 21. A'resilient locking plate '34. is so arranged that its two sides 35 and 36 form a right angle therebetwcen, which are parallel with the two. sides [of the adjacent tooth 20. As shown in Fig; 4, this'lock- :ing member 34may be formed as a lip projecting upwardly from a plate 37 suitably'secured in the bottom of the groove 27. The plate is made of a resilient metal or.

plastic shaped tohold the part 34 in a projecting position where its edge 36. would strike the radial edge of the tooth 20 and prevent backward movement of the wheel,

and its'edge. 35 wouldstrike the long edge portion 39 of the next" tooth and thus prevent a forward rotation of the wheel. The lock may be, however, quicklyreleased by the token. That is, when the token is. inserted through the slot 26, a downward pressure on the token as is necessary to getit beneath the overhanging cover plate. 13


' carrier wheel and thus slide down the slot.

20 and so again locks the wheel against rotation until 7 another token is inserted and is so manipulated as to push down thelocking 1ip-34 and again release the wheel.

ferent tasks and ultimately move the coin around to its discharge position. There is one token for each tooth on the wheel, such as 12, so that when the assigned 12 tasks have been performed, the coin will have been released into the vertical slot 17.

The slot 17 is cut deeply in the bottom board 12 so that the coin may fall laterally out of the hole 15 in its The lower end of the slot17 opens into a large space 40 which may be covered by a transparent plate so that the child may see the coin that has been earned by his performing the twelve necessary tasks. a A set of coins may accumulate in that space 40, or they may be either removed after releasing a special lock or stored in a batik 42 that is removably locked imposition. The bank 42 may be a semi-cylindrical body having a flat back wall resting against the bottom of a groove 43 in the bottom 12 and communicating through a side groove with the space 40. This bank may be made of transparent plastic so that the child may see the coins accumulated therein. The coin is readily inserted into the bank 42 by tipping the device to slide the coin from the space 40 into the upper end of the slot 43. 1

To hold the bank in position at its upper end and at the same time to provide a resilient locking member which prevents coins being shaken backwards out of the bank, the top 45 of the bank may have a slot at its rear portion (Fig. 5) which is shaped for the insertion therethrough of the resilient lip 47 that isa part of a plastic plate 48 which forms the bottom of the groove 43 at that point. This plate 48 may be a slotted plate mounted on the bottom 12 and cut to provide the desired grooves 27, 17 and 43 and the lip 34 of plate 37. As shown in Fig. 5, the coin 16 may slide through that slot and past the resilient lip 47 and into position in the bank. The coin cannot be reversed in that travel because of the lip 47 projecting forward into a position where any turning of the bank bottom side up would prevent passage of the coin.

The bank is lockedin that position and the coins and tokens are likewise prevented fromcscape or intentional removal by a locking system which ordinarily is under the control of the childs parent. Various forms of lock may be incorporated in the construction for this purpose, but in the drawings I have illustrated a combination lock formed of two slotted disks having a sufficient number of slots to prevent the child from obtaining the coin unless he knows the lock combination. In

the, construction shown in Figs. 1 and 6, a vhorizontal left hand end 54 of the slide is arranged to be slid intoa hQ ch in a second slide plate 56 which extends vertically a suitable groove in plate 12 or 48. That plate 56 (Fig. 1) has a notch 57 which may be brought into alignment with slide. 50 .by sliding the plate 56 within its groove. The slide 50'has a handle. 58 projecting upwardly through an elongated slot 59 in the The slide-'56 may be moved onlylwhen permitted by the. combination lock. This lock comprises twosuperimposed concentric rotary 'disk's 60 and 61, the upper one being transparent. The disks are pivotally mounted on a pivot 62, such 'as a telescoping double screw shown Thus the child may earn the individual tokens for his difin: Fig; 6 which has its two heads engagingthe outsides of thewalls 12 and 13. Eachdisk has aseries of radial notehesin its periphery, but only onenotch .63 in each disk is long enoughto accommodate a slide formed of a flange 64 (Figs. 1 and 6) projecting at right angles from the flat slide plate 56. The disks have sets of spaced numerals which will identify the unlocking positions of the disk notches. When the two locking-disks 60 and 61 are rotated into positions where, for example, the numeral on the lower'disk shows in the left hand opening 66 (Fig. 2) throughthe top cover, and the numeral 2 on the upper disk 60 shows in an opening atthe right (now shown), then the two special notches 63 of the two plates will be in alignment and the locking lug 64 may be shoved into those. aligned slots and the plate 56 moved over to a; position of alignment of notch 57 and slide 50, which provides for releasing the slide. The lug 64 projects upwardly through an elongated slot 65 in the cover plate. 13 where it may be -manipulated by ones finger. As indicated in the drawings, each of the two disks 60 and 61 is provided with various shapes and sizes of notches, which'are shown as eight in number on each disk, so that the total numberof position combinations of these notches is large and it is unlikely that a child would accidentally happen upon, the correct combination for releasing the slide'56. .;The left hand edge portions of the two disks 60 and 61 are exposed in a. cut away portion of the plate 13, as shown in Fig.

the bottom of the. groove 67. When the slide ,plate 56 is .in the locked position of Fig. 1, .it extends over the groove'67 and the. lug 68;projects' downwardly into the path of a coin 16-andthe latter cannot escape through the groove 67; as indicated by the dotted line position of the coin-in Fig. ,1. If, however, the slide plate56 is moved upwardly to position the'lug 68 at the top of the groove (Fig. 2,), then there is ample room below that lug 68, since the passage 67 is wider than the .coin. The slide. plate 56 may be a plastic-plate having an up- -curled side flange. 69 which gives strength. The plate is long enough to project half way across the passage 30 and present the flange in the path of any token 25, as shown-atthe bottom of Fig; 1,,- to prevent its release until the slide plate is moved to its uppermost position ,where thelplate ,does not project into the horizontal token-groove 30.. The flange 69 turnsupwardlyjand a thin transparent, plastic plate 72 has one edge located inthe groove 73'beneath the flange and so positions the upper end of the slide 56. This plastic plate 72 extends .overnthelocking disks 60, 61 but is transparent so that the numbers on the disk may be seen. This plate 72. is :provided with the notch 74which is always opposite the end of the slideway 52 so as not to interfere with the movement of the slide 50. Hence, the coin is released through passage 67 and thetokens may he, slid out-of the lower slideway 30, when the lockingyplate 56 is moved upwardly.

A,modification of the lock is shown in Figs. 3 and 7 in which the vertical groove 29, opens at the bottom into a wider grooved portion 75. The tokens 25 areheld in that vertical groove bymeans of a bent wire having a horizontal portion 76 riding in a suitable slot in" the plate 48 if used, is cut away to provide the recess 79 ;irr which the vertical portion 80 of the wire is slidab'ly po-. sitioned. This stepped shape of the" wire 76 iszfor the purpose of lockingly positioning a second vertically movable wire 82 which is arranged to lock the bank 42 in place. That is, the bank has a slot 83 in its bottom into whichflabanklocking wire 82 may be projected; This Wire 82 is U-shaped, as shown in Fig. 7, and rides 'in a deep groove in the bottom board 12 and beneath the Wire 76. It projects below the bottom board 12 for suitable manipulation. The upper portion v84 of the wire loop projects into the bottom of the bank, and its short end bears against the top horizontal part of the slide wire 76 when the parts are in the full line position of Fig. 3; but when the wire 76 has been moved toward the left to the dotted line position, then the vertical part 89 thereof is out of the path of the downward movement of the wire 82, and the latter may be drawn downwardly and out of locking engagement with the bank; The wires are suitably held in place, as by the top plate 13. The wire 76 also has 'ajvertically projecting portion 85 carrying'a short slidemember 86- thereon which is located in a groove-in the'lower plate and adapted to enter into the aligned slots 63 of the two disks 60 and 61. When the arm 85 is moved to the left and the plate 36 is thrust into the aligned combination lock slots, then the wire portion 85rlies in the dotted line position of Fig. 3 and the coin 16 may escapezpastvits upper end. However, the escape slot for the coin has a-downwardly projecting portion 88 which is so spaced relative to the end of the wire 85 in the full line position that the coin cannotget by it; but when the .wire

has been moved toward the left, then the coin may be moved past the projection 88.; A short slide plate.-90

bottom board 12. This wire is step-shaped and has a I horizontal portion 77 connecting with a downwardly projecting lug 78 which projects below the bottom of the'device so that it may be manipulated by hand. As

shown in Fig. 3, the portion 77 may be moved into a to the'd'otted line position and; allow the-tokens to escape. -iFor this purpose the bottom board 12, orgthe is shown in Fig. 6 as surrounding the lug 64 toflconceal the notched disks from observation through the open ing 65. a

The operation of this device will be apparent in view of the above disclosure. A coin or other suitable reward is mounted on the movable holder or carrier 10. The set of tokens preferably carry distinguishing marks so that the parent may know that the child has done each of the especially-assigned tasks. The child is given the right token for each completed task; 'and he inserts this token through the slot 26 and forces itbeneath the top 13 and over a resilient plate 37 (Fig. 4.). .This serves to press down on the spring .lug 34 and;thus releases it from looking engagement with thenotch faces of the lugs 26 on the carrier. The applied token can be moved manually only to the horizontal portion 28 of the trackway 27,- and; it must-= then be movedaway from the carrier sothat it can 'no longer operate the latter. Thus, separate tokens must be applied to move the rewarding coin from a starting position to .the finish position, where the coin will-fall through thegroove 19 and into the receptacle 40, or it may be shaken over into the bank or storage receptacle.- The; tokens are slid by the child down the trackway 29 into the lower horizontal trackway 30-where they are-held in locked position by means of the lug -69 on'the verticalslide 56. That slide 56 also has alug or flange 6j8 proj ecting into the coin exit path 67 and preventing its .releaseuntil the slide hasbeen removed to an unlocked position,

The slide 56 is held locked by a combination; lock comprisingthe rotary notched disks 60 and 61, eachz of which has a: single longslot 63 'which may be both positioned in alignmenttor receiving-the flange 64 0f the slide 56. This-permits a notch 57 in the slide to be moved vertically into alignment .with a; transverse slide 50 which has its end insertedin a slot 53 in the bank 42 to hold it locked in place beneatha lug-47M the top of the bank. This permits the slide 50;tobe 'moved toward' the left to. release the bank. In its'lowermost locked: position, the slide 56 has its twotflanges 68 and preventing.releaseoi the coins andltokens,

the lug on "the slide 56 is inserted inthe the tokens through the left hand end of the channel 30 and the coins through the .exit-67, if the coin has not been previously stored in the bank. Thus, a single coin is delivered to theehild', only when he has performed the-number of tasks which; corresponds withthe number of, notcheson the'rotary carrier. V

In the simplified modification of Figs. 3 and 7, the horizontal tokenpassage 30 is omitted and the tokens maybe released from thebottom end of the vertical trackway-29 when the portion 75 of the bent wire 76 has been pushed toward the left. This wire 76 has a vertical lug 85 standingin the path of the coin, as shown inEFig. 3, and the coin is released only when that lug has'been moved toward the left,-as shown in the dotted line position, This 'movement ofthe locking wire 76, 85 may-beetfected only .when the cross slide 86, which n has a notch carrying the vertical portion 85 of'the wire,

can. move' towarldthe lefti into the twoalighed notches 63 of the combination lo'ckingdisks. At the same time, when the coin and tokens are released, the bank 42' may also be] released because; the short downwardlyQ turned end 8410f the bank locking wire no longer engages the horizontal portion of the wire 76 and can be pulled downwardly to release the lower end of the bank.

ltwill be appreciated that various modifications may ,be made ing-tliis device and equivalent constructions employed .to providea suitable trackway for the tokens as wellias-a movablecarri'er for the reward, such as acoin',

wherein lugs on the movable carrier are so associated, with the trackway that the carrier may be moved to a limited" extent by the successive application of tokens to' the traekway into engagement with the lugs.- Various terms of lo'ck may be" employedto prevent any improper I movement of the carrier except by the application of a token and its use'in an authorized manner. Mechanical equivalents may beemployed in place of the com- -bination' lock for preventingac'cess to the coin and/or the 'tokens,' but the rotary slotted disks are preferred because of'theirsimplicity of operation and their coactionwith the various locking members that hold the 1; An'educational device comprising spaced walls forming a trackway exteridirigfr'o'm an entrance to an exit, a

of tokens shaped to bemanually moved on the trackwa'y, said 'walls' providing access for moving the tokens in the groove without permitting lateral rem'oval'thereof, a'movable carrier arranged to transport a coin,'said carrier having lugsprojecting intothe path of and movable by a tokenxin thegroove, means for limiting the distance through which the-carrier may be moved by a token engaging :1 lug thereonfthe number of lugs and tokens beinghrelatedso that the coin is moved b'y the carrier-ton delivery' point by the last token supplied for thepurpose; spaced walls providing a coin groove extendfingtrom thecarrier delivery point to an .exit which re- 'ceives'and stores the coin delivered'bythe carrier, and means including a releasable lock which prevents removal of the coinfrom the-groove exit. i p v 2. An educationaldevice comprising spaced walls forming'ay trackway therebetween extending from an entrance toa'n exit passage, a setbf tokens shaped to be manually "moved ,on-the trackway, said walls having a slot narrower than a token which provides for manual movement ofthe 'tokensmlong the trackwayand prevents lateral removal -.ther;eof, a movable'carrier having a pocket arranged to erins bnss coin, means providing an outlet passage for receiving the coin after it has been moved through-sue cessive positions by the-carrier, said carrier having lugs projecting into the path'of and movable intermittently by each of a-set of tokens in the'trackway, means for limitingthe distance through which the carrier maybe moved by" each token-engaging a lug thereon, the numher of lugs and tokens being related so that the coin is moved to the delivery passage only when the carrier is actuated by the total number of tokens, means providing a storage space communicating with the coin exit passage which-receives and stores the coin, a storage compartrnent for the used tokens and a releasable lock which provides for accessto both the coin and the tokens after the coin has been delivered to the coin outlet passage.

3. coin delivering device comprising a mount having a trackway groove extending from an entrance to a token receptacle, a set of tokens shaped to be manually moved in the groove, said mount providing for manual movementbut preventing lateral removal'of the tokens in the groove, a rotary: carrier arranged to transport a coin from an entrance to a delivery position, said car; rier having spaced peripheral lugs projecting into the path of a token in the trackway groove, a carrier lock releasable by a token for preventing movement of the carrier, said track having a portion so shaped that the token may move the carrier onlythrough' the angular'distance represented bythe spacing of two lugs thereon and a further portion which thereaftersdi'rects the token away from contact with the carrier, said parts being so arranged that the coin may be moved to the delivery point only by the use of a pre-determined number of tokens related to the number of said lugs, a receptacle arranged to receive eachtoken'after its operation of the carrier, and a releasable lock for providing access to the tokens and the coin after the latter'has reached the delivery point.

4. A device according to' claim 3 in which the carrier lock comprises aplate having a resilient movable lip normally standing up in; the path of movement of the carrier lug,'and the'trackway is so arranged that when the token isinserted into the entrance it must press the lip down to release it from the lug.

" 5. A device according to claim 3 comprising a removable coin bank mounted to receive a coin presented by the carrier at the delivery point, and a releasable lock for holding the bank in position. i

6, 'A coin delivering device comprising a mount having a trackway groove extending from an entrance to a storage receptacle, a predetermined number of tokens the carrier, said carrier having 'angularly'spaced peripheral lugs arranged to be projected successivelyinto the whichfprevents movement of the carrier except by a path of a token movable in the trackway groove, a lock token, said track being so shaped that a token may move the carrier through the distance of angular spacing of the lugs, and a releasable lock which prevents removal of both the-coin and the tokens.

7. A device according to claim 6 in which the releasable lock comprises a slide having parts which releasably interfere with the removal of the coin and tokens, and

means which provides for manual movement of the slide to a releasing position.

8. A deviceuaccording to claim 6 in which the lock comprises two rotary notched disks, each having a single long notch which may be aligned, the slide having a lug insertable into the aligned notches for movement to release the coin and tokens.

9. A coin delivering device comprising'ia mount having a trackwayextending from an entrance to an exit, a set of tokens movable on the trackway, arotary carrier -for moving a coin from an entrance to a delivery exit,

said-carrier 'having"angularly spaced lugs projecting sue- 9 10 cessively into the path of the tokens on the trackway, References Cited in the file of this patent means whereby each token may move the carrier only UNITED STATES PATENTS through a definite angular distance; a lock having two 7 454846 Burgess June 30 1891 movable members provided each with a slot and'movag' 'iiiiiiiii'lli y 1907 ble into alignment of the slots, and a locking slide which 5 1,287,025

, Huddle Dec. 10, 1918 releasably prevents egress of the com and tokens at said exits, said slide carrying a lug which is movable FOREIGN PATENTS into the aligned slots so that the slide may release the 2,061 Great Britain of 1887 coin and tokens. 5,058 Great Britain of 1891

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US454846 *Mar 2, 1891Jun 30, 1891 Cott burgess
US858378 *Nov 17, 1906Jul 2, 1907Isidor FluegelmanTicket-receiving box.
US1287025 *Sep 14, 1916Dec 10, 1918John B HuddleCoin-receptacle.
GB188702061A * Title not available
GB189105058A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4371071 *Apr 24, 1981Feb 1, 1983Abedor Allan JToken sensing photodetector actuated electronic control and timing device and method of use
US4838404 *Nov 28, 1986Jun 13, 1989West Virginia UniversityToken operating system for an electronic device
US5288233 *Apr 15, 1993Feb 22, 1994Green Janet ELearning device for attention deficit children
US5573407 *Oct 25, 1995Nov 12, 1996Dunford; BeverlyToilet training apparatus and method
U.S. Classification194/212, 434/238, 194/352, 194/248, 194/233, 194/226
International ClassificationG09B19/00
Cooperative ClassificationG09B19/00
European ClassificationG09B19/00