Патент USA US2406241код для вставки
Aug. 20, 1946. _ 2,406,241 w. L. MORRISON REFRIGERATED TRUCK Filed néc. 15, .1941 29 2,3 '25 zifxf ," / 26 2.- 5- 1 5 Sheets-Sheet]. , ; 1' - Fig.1. ' 68‘ 20» - . 1 Q > as“ 32 2 0M 4. ' '_ fnlvxenfér; ' I Mallard Z .Jiarrwm Attorzzgp 7'. 3 Aug. 20, 1946. ‘ . Q w. L. MORRISON 2,406,241 REFRIGERATED TRUCK ‘ Filed Dec. 15,‘ 1941 5 Sheets-Shee‘t 5 26 ‘20 Inventor WiZZardL. Jwmgm Aug. 20,1946. ‘w. LimoRRlsoN 2,406,241 - REFRIGERATED TRUCK Filed Dec. 15, 1941 . 5 sheets-sheet 4 ' 112116722907" ' - Willa rdl . Morrzsan Aug. 20, 1946. > w.“ L. MORRISON } REFRIGYERATED TRUCK Filed Dec. '15, 1941 2,406,241 5 Sheets-Sheet 5. . 2,406,241 Patented Aug. 20, 1946 UNITED STATES PATENT OFFICE’ 2,406,241 ‘ REFRIGERATED TRUCK Willard L. Morrison, Lake Forest, Ill. ’ Application December 15, 1941, Serial No. 423,024 5 Claims. (Cl. 62-.-117) n e 1 This invention relates to refrigerated trucks and has for its object to provide a new and im proved device of this description particularly adapted to deliver frozen foods. The invention has as a further object to pro vide a refrigerated truck for delivering foods of different kinds in a refrigerated condition. The invention has as a further object to pro~ vide a refrigerated truck having a plurality of separated insulated containers and one or more refrigerating machines, preferably gasoline op erated and located forward of the insulated con tainers, and arranged so that the current of air 2 a ‘refrigerated truck with two sets of separate refrigerated containers, separated by a space, the bottom of the space containing the pipes and connections for the refrigerant used in connec tion with the containers. The invention has as a further object to pro vide a refrigerated truck having a plurality of independent refrigerated containers open at the top and having a radiant heat shield over them, arranged so that the heat due to the sun will pass out from under them and upward and not act to warm the material in the refrigerated con tainers. . The invention has other objects which aremore produced by the motion of the truck contacts particularly pointed out in the accompanying the condenser and other parts of the refriger 15 description. ‘ ating apparatus so as to cool'them. I have illustrated in the drawings one formof The invention has as a further object to provide truck embodying the invention wherein a refrigerated truck having a plurality of sep arate cooling containers into which different ma terials, such as meat, berries, fruit, vegetables, 20 and the like, may be placed for delivery. Fig. 1 is a perspective view of a refrigerated truck; Fig. 2 is a diagrammatic plan view showing the containers, freezing units and piping; The invention has as a further object to pro Fig. 3 is a sectional view taken on line vide a refrigerated truck which is free of any Fig. 4 with the cover or radiant shield raised; cold chamber into which the customer or de Fig. 4 is a sectional view taken on line 4-4 of livery man must enter in removing or inspecting 25 Fig. 3 ; the refrigerated materials. The invention has as a further object to pro ' Fig. 5 is a cross-section of the truck body taken ‘ on the line 5-5 of Fig. 3; vide a refrigerated truck arranged so that the Fig. 6 is a detailed sectional view taken on line refrigerated material can be removed without 30 6—6 of Fig. 5; the cold air dropping out or being lost. Fig. 7 is a detailed sectional view taken on line The invention has as a further object to‘ pro; 1-—1 of Fig. 6; vide a refrigerated truck for delivering refriger Fig. 8 is a view showing the development of the ated materials, arranged so that the driver has outer shell of‘the container. 7 Like numerals refer to like parts throughout a clear rear view. The invention has as a further object to pro the several ?gures. vide a refrigerated truck for delivering refriger In the construction shown the truck is pro ated materials that may be called an open refrig vided with any suitable ‘motor, preferably the erated truck. The invention has as a further object to pro vide a refrigerated truck provided with a plu rality of wholly independent containers in which the refrigerated materials are carried. The invention has as a further object to pro usual gasoline engine, located under the hood l and a cab 2 for the driver. Back of the cab and mounted upon the chassis 3 (Figs. 3, 4 and 5) are a plurality of containers 4. Each of these containers comprises an inner metal cylinder 5 into which the refrigerated material is received (Figs. 6 and 7). Surrounding the inner cylinder pendent heat insulated containers separated by 45 5 is an outer cylinder 6. There is a space 1 be— a space, by means of which access is secured tween the two cylinders into which the refriger vide a refrigerated truck with two sets of inde to any one of the independent heat insulated ant is received. Means is provided for causing the refrigerant containers. The invention has as a further object to pro to travel back and forth longitudinally along vide a refrigerated truck with two sets of heat 5.0 the space between the cylinders. ' As herein insulated containers into which the material is shown, this is secured by providing a series of received, said containers separated by a space which acts as a walk for parties seeking access to the containers. ‘ The invention has as a further object to provide passage-forming members located between the cylinders 5 and 6 and in the space ‘I; These pas sage forming members are divided into two‘sets, i I , 2,406,241 ‘the passage forming members 8 and the passage forming members 9. The passage forming mem Since the truck is used in the sun, I prefer bers 8 extend from the bottom of the space to a point near the top thereof (see Fig. 8). The passage forming members 9 extend from the top - to provide at the top of each set of containers a radiant heat interceptor 23 which is hinged at 24 and which is provided at one side, prefer ably the inside, with openings 25. Heated air, of the space‘ to a point near the bottom thereof. The ends of the space ‘I are closed by the mem bers i0 and H at the top and bottom. This therefore, which tends to accumulate in the space 26 between this interceptor and the top of the container, being light, will pass out the open ings25 and escape and will not pass down into forms a continuous passagewayextending ‘back and forth longitudinally of the cylinders and in 10 the container asthe warm air always rises and the'space between them along which the refrig never fails. Some suitable means is preferably erant material passes.‘ These members are shown in Fig. 8 with relation to the outer cy1in-' ~ der 6. The refrigerant material preferably en provided for holding these interceptors in an ' open position when access to the containers is desired. For this purpose I have shown the ters the space 7 near the top thereof at the point 15 members 2'! pivoted to the interceptors and the I 2 (Fig. 8) where it divides, a portion of it pass members 28 pivoted to the member 22, the two ing back and forth along the sectionsforrned- by being pivoted together. the passage forming members in one direction, One set of containers is placed at one side of as to the left, and a portion of it passing backv the truck and the other set at the other side so and forth along the sections formed by the pas that there is a space 29 between them, This space is provided with a floor 30, upon which the driver of the truck or the customers can stand insecur between the cylinders 5 and 6 through the open ing access to the containers on either side. In ing it. It will be seen that all of the carrying the space 29 beneath the floor 30 is located cer space'in the containers and, therefore,.for the 25 tain pipes and ?ttings for. the refrigerating appa entire truck, is surrounded by‘ a primary cool ratus. ing surface, and by means of this arrangement I have shown two differentrefrigerating ele the refrigerant material divides into two portions,‘ ments, each comprising a compressor 3| and a each of which passes only half way around the, motor 32, which is here shown as an internal cylinders; . 3,0 combustion engine, and a condenser 33. I also The‘ truck is provided with a plurality of re prefer to provide a fan 33a for the condenser, frigerated containers, preferably divided into two which is driven vfrom the motor 32, the motor sets, one set being on one side and the other set driving the compressor 31 by means of thebelt being on the other side. with a space between 3la. , ~ ‘ .' them.‘ In the construction shown, there are four The truck body has at each side the project containers in each set, although of course more ing parts 34 which project laterally out beyond or less of these containers may be used as the the front or cab portion of the truck. The front conditions require. ' portion of these projecting parts are provided The containers 4 ‘of each set are preferably with means for permitting air to pass there connected together in some suitable manner. 40 through when the truck is in motion, such as the In the construction shown, they are connected grids 35. One refrigerating apparatus is located together by'the connecting members M, one on in each of these projecting portions. It will be each side of each set and preferably'nea'r the seen that when the truck is in motion, air passes top'of the containers. Theseconnected mem through the grids and in contact with the con bers may be connected I sage forming rmembersgas for example to the ' right. These two portions are discharged from to the outer cylinder in- ' any desired manner. As herein shown, the outer cylinder has welded thereto the‘angle members 15 and these angle members are connected to' the ‘ connecting members My by fastening members l6. These connecting members. are shown_as 1 angle wirons. passing out to the rear of the truck. " I have shown two sets of refrigerating appara tus as a matter of safety,‘ for either one alone is suf?cient to properly refrigerate all of the con : tainers. The several containers of each set are embedded ‘ in insulated material densers and the remaining portions ofthe'r'efrigi erating apparatus so as to cool the same, the heat The refrigerant from the refrigerating appara ~if! which "surrounds the tus on the left (Fig. 2) passes from the condenser j cylinders and fills the space between them_ (see Fig. 6). There is an insulating member l'la 55 into the pipe 36 and the refrigerant from the. re frigerating apparatus on the right passes from extending along the bottom of each set of con Thercontainers are closed at the bot 1 tom and there area plurality of supports I8 ex , the condenser into the pipe 31. These pipes are tainers. provided with valves 3% and 31a. Both of these pipes are connected to the receiver 38 by the pipe 39 so that refrigerant from either or both of I tending through the insulation i'ia and rest ing upon a base 65 attached to the chassis of the 60 them passes into this receiver. The refrigerant truck. This base is provided with locating mem passes out of the receiver through pipe 40 into bers ltlarwhichv project into the insulation Fla the pipes El and 42, these pipes being provided ‘ so as to assist in holding ‘it in proper position. with the valves 133 and 44.‘ These pipes pass along i There is an’ outer casing 20, preferably of metal, at the sides of the containers under the floor 30. 1which extends around each set of containers. 65 There is 'a pipe’ 65 for each container which con gThis casing is provided nects with the pipe 4! or the pipe 42. In each with a portion 2i which of these pipes is an expansion valve 46 and lead‘ extends down to the bottom of the truck on the foutside. .There is preferably a cover member 22 ing from each expansion valve is a pipe 4‘! which connects with the space 1 between each of the ‘which extends along the top of each set of con Itainers and which is provided with vopenings for 70 cylinders 5 and 6, the connection "being'made through the opening l2 (Fig. 8); ' The refrigerant the upper ends of the containersi There area material, after passing back ‘and forth through ‘ series of covers 4a, preferably, one for each con the space 1 of each container, passes out of ‘said ;tainer, by means ‘of which access is secured space 7 through the opening l3 (Fig. 8'), and thereto; 75 through the ‘ pipe: 48' . and passes. into "the pipes , 2,406,241 '5 49 and 58 provided with the valves 5| and 52 and thence it passes by the pipe 53 into the pipe 54 and thence to the compressor 3|. 6 they support the heat interceptors in their open position and the handle 13 is attached to one of these, being shown attached to the member 21. Some means is preferably provided for holding There is an opening in each cover member 22 the container covers 4a in their closed position. above each expansion valve 46 provided with a This is done by means of the member 14 (Figs. 3 removable closure device 55 so that access can and 5) attached to the members 28 and which be readily secured to the expansion valves when are provided with projections 15 which engage this becomes desirable for any purpose. projections 16 on the container covers. It will A fuel tank 55 is provided for the truck engine be seen’ that when the heat interceptors 23 are 10 and the refrigerating apparatus engines. This in their down position the projections 15 engage tank is provided with the cap 51 covering the the projections ‘I6 so as to hold the covers closed. opening through ‘which the fuel is inserted. Fuel When theheat interceptors are raised, the covers is inserted into the tank by lifting up the floor are released. ‘ '30. The tank is connected by pipes 58, 59‘ with It will be seen that there is here provided a 15 the engines 32. refrigerated truck having a body formed of re Means is provided for removing oil that may frigerated containers for the food, the containers be carried over from the compressor into the being separated by a non-refrigerated space, by space 1 between the cylinders 5 and 6. As herein means of which access is secured to such refrig shown, this is accomplished by means of a pipe erated containers, there‘ being means for prevent 69' (Fig. '7) which is connected to the space 1 ing the escape of cold air from such refrigerated near the bottom and with the pipe 43 leading containers into the non-refrigerated space while back to the compressor so that suction of the the food is being removed from such containers. compressor will draw this oil back and ‘return it The bottoms of the containers are below the to the compressor. . driver’s seat and the tops of the containers are Each of the outer cylinders 6 is provided with at armpit height for the average person stand a projection 6a which projects into the insulat ing on the floor 30 so that articles on the interior ing member Ila and which assists in maintain of the bottom portion may be easily reached by ing the cylinders in their proper position. the average person. A step 6| (Fig. 3) is provided for providing The use ‘and operation of my invention are as easy access to the ?oor 30. The rear end of the follows: ?oor 3E1 rests upon a support 62 a short distance In the use of frozen foods, for example, such from the rear end of the truck and there is a step foods vmust be delivered to the user in a proper member 63 extending from this support and pro frozen condition. By means of my invention the jecting slightly beyond the end of the truck. The frozen foods or other materials to be delivered in step 6! is hinged at 64 to the step member 63. a cold condition are placed in the containers. When the step is down in its operative position They are preferably frozen at a central plant, ‘ it engages the bumper (55, there being preferably although they may, of course, be frozen in‘ the rubber members 56 interposed between it and the truck, if desired, but this would limit the use of bumper. When the step is not being used, it is the truck as it takes time to freeze the food. moved up so that the part 61 meets the floor 38 . The party who puts the frozen food or other and becomes a part of the floor, as shown in material into the containers passes with the food dotted lines in Fig. 3. into the non-refrigerated passageway between The cab is provided with a rear view mirror the sets of containers, lifts the heat interceptor 68, by means of which the driver can have an 23 and removes the covers M from the containers, unobstructed view to the rear without turning and deposits the food or other material in the his head to look through the rear window 69. The covers are then placed on the . containers. This is possible because of the open space be containers and the heat interceptors moved to tween the refrigerated containers. their closed position. The base is acts as the bottom of the recep tacle into which the pipes for the refrigerating apparatus are received. The ?oor 30 acts as the top of this receptacle and as a removable cover 50 The truck may then be driven to the various points of delivery, the driver being able to see through the space between the sets of contain ers so that he has a clear view of whatever is therefor. Some means is provided for securing easy ac at the rear of the truck, making it easy for him to drive and to back the truck into delivery or cess to the refrigerating apparatus used‘ to re frigerate the food containers. In the construc other positions. tion shown this is secured by mounting the com- ' the sun rays and. the heat due to the sun rays escapes through the openings 25 so as not to heat The heat interceptors 23 intercept the heat of pressor and other parts of the refrigerating ap paratus upon a base (Figs. 1 and 2) which is the containers or the material therein. separate from the truck body and which can be 60 The party who is purchasing the food may removed through the opening ‘H3 in the side of easily pass up the steps to the ?oor 30 and lift the truck. This opening is closed by a door ‘H up the heat interceptors 23 and the covers 4a and which is fastened by suitable fastening devices look into the receptacles so as to see the food. to 12. The pipes 54a is made of ?exible material so be delivered. The delivery man can then remove that it may be of sufficient length to permit the as much of this food as the given customer is to refrigerating apparatus to be} moved out of the receive and deliver it to- the customer. During truck body. When this is done, the connections all of this process the customer and the deliv of the condensers 33 to the pipes 36 and 13 are ery man are standing in the non-refrigerated disconnected by unscrewing the connecting parts. space or passageway between the containers. These connecting parts are easily accessible be With this invention everything is open to the cause they are at the outside. daylight and no heat of lamps acts to heat the There is preferably a handle device 13 con containers or the food therein. Furthermore no nected with the heat interceptors (Figs. 3 and 5) cold air drops out of any of the containers when by means of which they can be raised and low the customer or the delivery man enters the truck ered. The members 21, 28 are arranged so that 2,406,241 7 ybodys'or' while the customer is looking at the "a driver’s cab mounted on said chassis, a truck body connected with ‘and supported upon said‘ chassis comprising a plurality of vertical cylin-. drical evaporators, heat insulating material sur rounding the vertical surfaces of said evaportors foods in the‘coolers or. While the foods are being removed from the containers. ' . ‘ ' terthe food containers are reduced to the proper'low temperature and the food therein frozen, metal cylinders 5 and 6 and the refriger ‘ and ‘extending. between them, heat insulating ma ant in between them act as a hold-over so that terial extending along the exterior of the bottoms the refrigerating‘apparatus need not be oper of said evaporators, an outer casing extending ated, asa rule, during the delivery, as this hold over action keeps .the foods properly frozen. 10 around the evaporators and the ‘insulation there for so as to form a unitary structure, a refriger When, of course, it'becomes desirable, the re ating element connected withsaid evaporators, frigerating apparatus may ‘be set in operation comprising a compressor, a motor and a con was to insure the proper temperature in the con denser, ,a receptacle therefor located to the rear tainers. ' This, of course, would be necessary driver’s cab,'and a platform extending where long .trips are made in' the delivery .of the 15 .ofsaid longitudinally along said evaporators at one side It .will be seen that there is here provided an ‘4. A- refrigerated truck, adapted for dispens open. truck with ‘refrigerated .‘containers into ing frozenmaterials, including a truck body, a which the frozen food'sv are received','and that . power plant therefor, a driver’s cab, a longitudi in between these containers is an open space 20 nal Walk behind said cab, extending forwardly which is not refrigerated and into:which individ frozen food. . 7 . . : ' ' thereof. ' , to said cab and providing a free rear view space uals'who wish to inspect or remove or insert the foods. pass, that no lights or other heat produc ‘for the cab, and a storage and dispensing unit locateda't one side of said walk, in a position - ing devices are used in the space where the foods adapted to permit an unobstructed view of the are .contained or in any space‘ whichwould tend to heat this space or these foods, and that by 25 driver from the rear of the cab along said walk, said storage and dispensing unit extending up means. of this open truck frozen foods can be wardly from the level of said walk'and including ‘delivered to any distant point desired without an open topped evaporator adapted to serve as loss of cold due to the spilling out of cold air a container for the articles to "be stored, the top at any time, either when the food is inspected 30 of said evaporator being at a height convenient or removed from the truck. ’ for-an operator standing on‘ said walk, a remov It ‘will further. be seen thatthe driver has a . able closure for the open top of said evaporator free'view of what is infthe rear of the truck, which and means for passing a refrigerant through said is of very great‘ importance in the proper hane evaporator, and a heat interceptor located above dling of the truck both in avoiding ti‘af?c and in backing into .delivery or'other positions. In the c0nst1'ucti0n'.sh0wn..the truck body is 35 evaporators ini this construction form .the ' claim: ' ‘ i ' ‘ - nal walk behind said cab extending'forwardly to > permit 'an unobstructed view of the driver from the rear of the cab along said walk and between ' 1.. A ‘refrigerated truck comprising a ‘body ,said units, each said storage and dispelnsing unit extending upwardly from the level of, said formed of “evaporators Which actas‘containers into which‘ the'mat'erial to be ‘cooled is received, said containers being formed‘iiito two sets sep arated by a non-refrigeratedspace in'which in dividuals’stand when'inserting materials into or removing materials‘ from ‘said containers, and a heat interceptor located above each set of said containers and‘separatedtherefrom by a space, said space having .a connection below said heat. interceptors to the outside atmosphere. through , . " walk and including a plurality of open topped evaporators, each adapted to serve as a container for the‘articles tobe stored, the tops of said evaporators being at a height convenient vfor an operator standing on said walk, removable clo sures for each said evaporator, and means for passing. arefrigerant through said evaporators, said evaporators being aligned longitudinally along one side of the truck body, and a unitary I ‘which air heated'by the sun striking the heat 'interceptors‘ escapes without heating the con‘ tainers. for the cab, and a storage and dispensing unit located at each side of said Walk and extending longitudinally therealong in a position adapted to ' . _ 40 said- cab and providing a free‘ rear view space strengthening elements ‘of the truck ‘body ‘and 'I ' power plant therefor, a driver’s cab, a longitudi with. the ‘insulation con titute the refrigerated body of the'truck. ‘ 5. A refrigerated truck, adapted for dispens ing frozen materials, including a truck body, a made up ‘of a plurality of separated ‘metal cyl inders acting asevaporators or cooling elements, the cylinders being. insulated. The cylinders or said removable closure. outer-housing surrounding said-evaporators, and a mass of insulating material between said hous ing'and said evaporators, surrounding and under a 2. A refrigerating truck comprising a plurality 1 of evaporators mounted thereon, each evaporator 60 lying '- said' evaporators,- ' and a; separate- com having two covers, one above the other and sep ‘ arated by a space communicating with the out-A side atmosphere, vthe upper cover acting as ‘a heat ‘ interceptor. : 32 A refrigerating truck comprising a chassis, 65 fpressor-condenser unit for each said storage and dispensing unit in circuit with the evaporators thereof; and a single receiver in circuit with'both storage and dispensing units and with both com pressor-conden'ser units; = »- ' - - ' a - ' WILLARD L. MORRISON.