Патент USA US2406678код для вставки
Aug. 27, 1946. J. D. GERAHTY CONTAINER AND METHOD OF MAKING SAME . 2,406,678 ' - ,Filed March 8, 1945 INVENTOR; Patented Aug. 27, 1946 2,406,678 UNITED STATES PATENT OFFICE CONTAINER AND METHOD OF MAKING SAME James D-. Gerahty, New’ York. N. Y. Application March s,_ 1943, Serial No. 47,78,386 9 Claims. (01. 18-47;.5.) 1 2, Thlsinvention relates to containers generally scription thereof proceeds, the invention consist. and has for its principal object the production of arcontainer adapted to be expeditiously and economically manufactured and to be employed hereinafter more particularly described and then as a substitute for or to supersede those now speci?ed’ in the claims. well-known and constituted of metal, ?ber, paper, glass or other materials and adapted ‘for pack In the accompanying drawing illustrating a practical embodiment of the invention: aging,carrying, storing or dispensing a variety ‘ Fig. Us a section taken through a cylindrically ing- in the novel container and article of man ufacture and the method'of producing the‘same 7' . 1 ' shaped fabric or ?bered bag: forming the founda “Brie?y ‘stated,’ the inventionrconsists in and 10 tion or reinforcement of the container showing it of articles? . . ' reinforcement having an open mouth and closed held suspended by a suitable vholder prior to dip ping or immersion in theliquid resin. Fig. 2 is a section taken through the liquid at its bottom and then impregnating‘ and/or coat resin tank. v has for its objects the provision of a cylindrically formedonother shaped ?bered foundation or ing said, foundation with a suitable resin and 15 subjecting thefoundation so treated to heat of a suf?cient degree toharden and/or polymerize the resin and produce a container having light ' V Fig. 3 is a horizontal cross-section on the line 3-—3 of Fig. 1. ' ‘ ' Fig. 4'is‘a' section taken through a mold which may beemployed for heat treating the founda tion after its impregnation with the resin. Fig. 5 is a perspective view of the container ness in weight, strength, and rigidity while at ' the same time being resistant to fracture, or 20 breakage.v The container constructed vaccording showing its untreated end folded to proper posi to the‘ invention also will be found to be leak ' tion for hermetically sealing the container. . proof, air-tight, impervious to moisture and re Fig. 6 is a front elevation (partly in section) sistant to the formation of bacterial growth. showing the sealing operation. ' I In the construction of the container of the in 25 Fig. 7' is a perspective view of the completed vention it, is preferred to employ as the ?bered foundation, a fabric, either woven, knitted, felted container. matted or “picked” in any well-known manner, drawing: 1 from ?bers, ‘either mineralhorganic, vegetable or synthetic. The ?bered foundation, for in. stance,‘ may be of cotton, wool, worsted, ramie, jute, kapok, linen, natural silk, rayon. viscose casein, cupro ammonia synthetic. ?bers ethyl cel A eylindrically-f'ormed or other geometrically formed ?bered bag-like foundation or reinforce lulose, methyl cellulose, aceto butyrate cellulose, propionate derivatives of cellulose, or ‘any other material equivalent to those mentioned and hav ing similar characteristics. ‘ Any number of a long list of resins suitable for the impregnation and coating of the ?bered foundation may be employed and it. is thought to be unnecessary to catalogue them. A phenolic liquid resin, however, without limiting the in vention to its use, will be found to be an ideal one for the purpose, such phenolic resin being the product of a reaction of phenol/and any suitable aldehyde. In many cases, also, the use of melamine as the resin will be found to be very desirable. The impregnation and/or coating of 7 the ?bered foundation or fabric may be effected , V Referring in detail to the several ?gures of the ' ' r ment closed at its lower end and'havingan open mouth, as illustrated,_' is indicated at II). This foundation is of the same con?guration and of substantially the same diameter as the completed container. Other con?gurations, obviously, may be employed, depending on the nature of the ?n ished product. For the purposes of holding said bag for purposes of impregnation in a liquid resin, a suitable. holder has been provided comprising a body It having upper and lower plates 12 and I3 respectively supporting therebetween a plu rality of radially directed, pointed and movable holding elements 14. adapted to engage against the ‘inner side of the ?bered foundation and hold the mouthv thereof‘ in disputed position as shown in Fig. 3. - The body I marries a shaft 15 extend ing upwardly therefrom and said'shaft ‘carries an actuator Hi having a lower ?ange or plate [1 r0. conveniently by a variety of suitable mechanical tatably engaging the upper plate l2- and provided instrumentalities as’ by dipping, soaking, spray with radial slots l8 therein ’ receiving pins‘ l9 mounted on the holding elements l4. Obviously, and on the foundation or fabric. ' rotation of the actuator H5 in thev proper direction will reciprocate the holding elements inwardly or .Other'and further objects and’ advantages of the invention will become apparent as the de 55, outwardly as the case may be because of the pin ing, pressing or forcing the resin through or into 2,406,678 3 and slot connections between the parts just de scribed. After the fabric foundation I0 is supported by the holder H with the mouth of the foundation distended as shown in Fig. 3 the foundation is lowered into a tank 29 containing heated liquid resin 2|, said tank being provided with a steam jacket 22 to which inlet and outlet steam pipes 23 and 24 are provided to permit the resin to be 4 also be understood that it is within the scope of the invention to effect the hardening and/or polymerization of the resin chemically by the utilization of catalysts of various types and with or without the employment of heat. After the hardening and polymerizing operation has been effected, a cylindrical container as shown in Fig. 5 is produced having a hardened main body por tion indicated at 42 and an upper end 43 integral with the body but which has not been subjected 10 The heated and retained in heated condition. fabric foundation thereupon becomes thoroughly impregnated with the resin which not only enters the interstices of the fabric to close them but to the hardening action so that it remains pliable and ?exible. For the purposes of closing and hermetically sealing the container, diametrically opposed por 15 tions of the pliable and ?exible upper end 43 are either side of the foundation_ creased or folded inwardly to form triangular After impregnation, the fibered foundation is portions 46 the apices of which lie in alignment slipped over the hollow male member 25 of a and adjacent to each other. Such creased and molding machine with which it‘ closely inter?ts. folded upper end is folded over on itself as shown Said male member extends upwardly through a suitable opening in a table 26 and is supported by 20 in Fig. 6 and is held ?rmly and tightly between the heated jaws of a clamp which are indicated a shaft 21 slidably received by a bearing 28 diagrammatically at 45 in said ?gure. Said jaws which is fastened to the arms 29 of a spider which are subjected to pressure and intense heat with is fastened to and depends downwardly from the the result that the upper folded end of the pliable table 26. This permits adjustment of the ver tical position of said male mold member 25 and 25 and flexible portion 43 itself is hardened and/or polymerized to effect a hermetically sealed clo it may be held in any desired position of adjust provides a coating of minimum thickness on ment by means of a set screw 30. Said hollow sure for the containerconstituting a portion of the container. per se. After the container is male member 25 is provided therein with a steam sealed in the manner explained the upper pliable coil 3| for heating purposes said coil being con nected by an inlet pipe 32 with a source of steam 30 and flexible portion 43 carrying the sealed end with it may be pressed downwardly as shown in supply and being also provided with an outlet Figure 7. To open the container the upper por pipe 33. Admission of steam to the coil may be tion 43 thereof is again pulled upwardly into the controlled by a valve 33'. position shown in Fig. 6 and a knife may then The hollow female member of the molding ma be used to cut through said ?exible portion 43, the ‘chine is indicated at 34. It is provided with a upper edge of the hardened and polymerized por chamber or jacket 35 for receiving a steam coil tion 42 acting as a convenient guide for the knife 36 connected by an inlet pipe 31 with the same for accomplishing that purpose. source of steam supply and also connected with While heretofore it has been proposed to mold an outlet pipe 38. Said female mold member is a container or similar device from polymerized ?anged as at 39, said ?ange being of a size per resin, these devices have not proven to be en mitting it to inter?t with a shouldered portion on tirely satisfactory because of their brittleness and the table 26 as illustrated. The lower end 40 of consequent susceptibility to breakage and for the said female mold member also extends within the further reason that the employment of a relative opening which receives the male member and ly large amount of resin is necessaryto provide a inter?ts with the wall of said opening so as to wall of sufficient thickness to enable them to insure a close and firm but removable engage properly perform the function for which they are ment between the parts. If so desired the ?ange intended and which‘ obviously, adds to their 39 of the female member may be provided with weight materially, of necessity. These disad suitable handles 4! for purposes of removal and vantages have been overcome by means of the 5 O placement. . present invention as the employment of a fabric After the impregnated and coated fabric or or other ?bered foundation or reinforcement in foundation has been slipped over the male mold the structure not only acts as a strengthening member 25 of the molding machine, the female membertherefor but permits the utilization of a mold member 24 is supported in proper position relatively small amount of resin in the manufac on the table 26 as shown in Fig. 4 with the ture of the device thus making for economy and female member receiving the male member and permitting a very rapidcuring or hardening of the treated ?bered foundation being interposed the resin. The container of the invention, fur between both members and in close relationship thermore, is not only materially stronger than thereto. When in that position, it will be noted the old type molded entirely of polymerized resin that a certain portion of the ?bered foundation but it is also shock resistant and resistant to frac is unsupported and extends freely downwardly ture or breakage which characteristics are not from the table 26 so that it will be unaffected by the hardening and/or polymerizing operation. That operation may be effected by admitting steam to both coils to subject both mold members ‘ to suiiicient heat to harden and/or polymerize possessed by the old type just referred to. It will be understood that the invention is not limited in its application to containers per se but various other devices having a number of differ ent uses may be constructed in accordance there the resin with which the ?bered foundation is with and these devices may have a plurality of impregnated and coated. This produces a strong different and varying con?gurations. It will be and rigid structure. Obviously, in some cases, it may be found unnecessary to heat both mold 77 further understood that instead of hermetically sealing the end of the container in the manner members, the heating of one only being sufficient described, it will be found desirable in some cases to produce the desired results. Also, the employ to harden and/or polymerize the impregnated ment of other heating means may be found de and coated foundation or reinforcement through sirable in some cases as, for instance, electric heating devices of, various . characters‘, ll? will ,75 out its length'and to employ a separate closure 5,406,673 ‘In?v cover for .the body 7. itself,w wtiolfs‘tijiict'ecl in -_t_he same'manner as the: body, and‘which'shall be adapted to‘ snugly and frictionally inter?t with said body and, if so desired, to be attached‘there; to in‘ any desirable manner. Containers of this type will; be found useful for packaging and ship ping awidevariety of commodities. ' The invention claimed is: n V ’ _ _ ‘ _ . . 1“. ‘The method of manufacturing a container consisting in'providing a ?exible bagelike ?bered portiomthe upper edge~ of ~‘said‘body"portion pro‘ viding arigid guide for a' cuttingto'ol for cutting ‘and separating th'e'intermediate' and end, pot tionsfrom the body portion, ' ' ' 1 f ' ' 1 1 5. m a" '_'ontainer for , holding and shipping commodities, a bag-like foundation of porous, ?bered fabric comprising three integral portions to‘ wit: a rigid 'body' portion resistant vto bending and'folding and having a closed bottom, a pliable and ?exible ‘intermediate portion and a ‘hermeti foundation closedatone end and having an open cally sealed end'portion folded over'on itself and mouth, impregnating, and coating both surfaces providing a closure‘for'the- containerhthe upper of _'sai_d foundation with‘ a thincoating, of-liquid resinv adapted to 'be hardened , ‘ and “polymerized edge of sa'id'r'igid ‘body 'portion providing ‘a, ‘cir cumferential guide for a cutting tool for cutting by the " application of , heat, subjecting a, portion 15 and‘ separating-the intermediate: and end por ‘of treated foundation to the action of heat to harden, and polymerize the resin and produce a rigid'structure'of substantially the same con?g tions' from 'the'body portion, a? thin coating of ‘ hardened and polymerized liquid resin covering the-body‘andend portions and enterin'g’and'close uration as the ?bered ‘foundation to form the ing the interstices ‘thereof and a thin coating of body of the container while retaining the balance 20 unhardened liquid resin covering the intermedi of the foundation in ?exible condition and subse ate ?exible portion and entering and closing the quently subjecting a portion of said balance to interstices thereof. the action of heat to harden and polymerize the 6. The method of manufacturing 9, container resin and provide a closure formed entirely by a consisting in providing a porous, ?exible, bag portion of the coated foundation per se. 25 like ‘fabric foundation closed at one end and hav v2. The method of manufacturing a container ing an open mouth, impregnating and coating consisting in providing a ?exible bag-like fabric both surfaces of said foundation with a liquid closed at one end and having an open mouth, im resin adapted to be hardened by the application pregnating and coating both surfaces of said of heat whereby the pores of said foundation will fabric with a liquid resin adapted to be hardened be closed by said resin, subjecting a substantial and polymerized by the application of heat, portion of said coated foundation to heat to subjecting a substantial portion of said treated harden and polymerize the resin of said sub fabric to heat to so harden and polymerize it and stantial portion and produce a rigid body portion produce a rigid structure forming the body of of the container of substantially the same con?g the container, folding the end of the treated - uration as the original foundation and resistant fabric adjacent its mouth and subjecting said , to bending and folding and to provide a circum folded end to the action of heat to harden and ferential edge on said body portion acting as a polymerize said folded end and to hermetically ‘seal the container while leaving that portion of the impregnated fabric intermediate the body of ‘the container and its polymerized folded portion unhardened and ?exible. the coated foundation in ?exible condition, th'en subjecting a portion only of said ?exible end to heat to harden and polymerize the resin and to guide for a cutting tool while leaving an end of provide a closure for the container formed en tirely by the coated foundation while leaving that consisting in providing a ?exible bag-like fabric portion of the coated foundation adjacent the closed at one end and having an open mouth, 45 aforesaid circumferential edge and intermediate impregnating and coating both surfaces of said the body and closure in ?exible condition. 3. The method of manufacturing a container fabric with‘ a liquid resin adapted to be hardened 7. The method of manufacturing a container and polymerized by the application of heat, mounting a substantial portion of said impreg consisting in providing a ?exible bag-like ?bered foundation closed at one end and having an open nated fabric over the ‘male member of a molding 50 mouth, impregnating and coating both surfaces machine and in close engagement therewith of said foundation throughout its length‘ and in While leaving the portion adjacent its mouth free cluding its closed end with a thin coating of liq bringing an inter?tting female member of the uid resin adapted to be hardened and polymerized molding machine over said male member and in by the action of heat, heating a substantial por close proximity with said-substantial portion of 55 tion of the impregnated and coated foundation the impregnated fabric, supplying heat to one of including its closed end to so harden and poly said molding machine members to thereby merize the resin and to provide a, rigid body and harden and polymerize the resin and produce a " end for the container resistant to bending and rigid body structure for the container having folding while leaving the balance of the coated substantially the same con?guration as the fabric 60 foundation in ?exible condition and subsequently and subsequently folding said free portion adja heating and applying pressure to that portion of cent the mouth and subjecting it to heat to the coated foundation adjacent the open mouth‘ harden and polymerize it and provide a closure to provide a closure for the container constituted formed entirely by the coated fabric per se. entirely by a portion of the coated foundation 4. In an article of manufacture, a foundation of porous, ?bered fabric comprising three inte gral portions'to wit: a rigid body portion resist ant to bending and folding and including the 65 per se. ‘ \ _ 8. The method of manufacturing a container consisting in providing a ?exible bag-like fabric closed at one end and having an open mouth, bottom of the container, a, pliable and ?exible ' . impregnating and coating both surfaces of said intermediate portion and a rigid end portion con 70 fabric with a liquid resin adapted to be hardened stituting the closure for the container, a thin coating of hardened and polymerized liquid resin covering both surfaces of said body portion and end portion and a thin coating of unhardened liquid resin covering said ?exible intermediate and polymerized by the application of heat, ‘mounting said impregenated fabric on the male member of a, molding machine in such manner that a substantial portion thereof including the closed end is in close engagement ‘with’ said male 2,406,078 7 8 member while leaving thatzportion adjacent its and polymerized by the application of'heat, sub month free, providing a female member for the molding machine, bringing said male and female fabric to the heat-action of a molding machine members into operative relationship with each other with said female member in proximity to said substantial portion of the impregnated fabric, supplying heat to one of said members to harden and polymerize the resin on the aforesaid substantial portion to provide a rigid body for the container and subsequently closing and her metically sealing the mouth of the impregnated fabric by applying heat and pressure to that portion of the impregnated fabric adjacent said mouth. 9. The method of manufacuring a container consisting in providing a ?exible bag-like fabric closed at one end and having an open mouth, impregnating and coating both surfaces of said fabric. with a liquid resin adapted to be hardened jecting a substantial portionof said impregnated having male and female members by mounting said impregnated fabric including its closed end on the male member and in close engagement therewith while leaving a portion thereof free and ?exible and disengaged. ‘from said male mem ber, bringing said male and female members into operative relationship, supplying heat to one of the members to harden and polymerize the resin on said substantial portion and to provide a rigid body for the container resistant to bending and folding and. subsequently sealing the aforesaid open mouth by applying heat and pressure to the impregnated ?exible fabric lying adjacent thereto. _ JAMES D. GERAHTY.