Патент USA US2391475код для вставки
Dec. 25, 1945. ‘ 2,391,475 J. B. NEWHARDT‘ BUOYANT ARTICLE Filed June 24, 1940 FIGJ FIG.3 FlvG.2 INVENTORI 2,391,475 Patented Dec. 25, 1945 UNITED STATES PATENT. OFFICE Joseph B. Newhardt, Berwyn, Ill., assignor of one half to Charles H. Angeli, Danville, Ill. Application June 24, 1940, Serial No. 342,065 3 Claims. The invention is concerned with improvements in articles of manufacture of the class which are buoyant in liquids such as water and are intend ed to float in an upright position with a substan- ‘ tial portion of the article above the surface of the water. The improvements provided by the invention are particularly well adapted for use in such articles as decoy waterfowl and children's (Cl. 43-3) ' terial advantage, for example, in decoys which, as conventionally constructed of wood, are bulky to transport and, unless carefully handled, are subject to breakage, particularly at the neck. Wooden decoys may also-become waterlogged if not properly protected. ' The collapsible construction is also cooperative with the concave bottom. With these two fea tures, the article may be collapsed to expel a toys which resemble animate objects and which 10 large portion of the air from the space beneath ?oat. the concave bottom, and, when allowed to expand One of the primary objects of the invention with the edges‘of the concave bottom held be is to provide an article of the 'class described neath the surface of the water, a partial vacuum possessing the high degree of stability or equi is created which holds the article ?rmly upright librium, particularly in rough or choppy Water. in the water. Some water will, of ‘course, be Furtherobjects of the invention are to provide 15 forced from the surrounding body thereof up an article of this class which is relatively inex into the low pressure space within the concave ' bottom, making the water level in this zone high— and easy to transport. er than that of the surrounding body of water An outstanding feature of the invention is the and/or causing the article to seek repose at a 20 reentrant or concave shape of the bottom of the somewhat lower level ‘in the surrounding body article. This I have found lends buoyant ar of water. This additional water is held in posi ticles, such as decoy water fowl, for example, ex tion beneath the concave bottom and acts as bal ceptionally good stability even in-rough water. last. Water thus drawn into this space does not It is common practice to weight decoys, this constitute “added weight Or ballast" in the sense having heretofore been necessary in order to pre that this phrase is used in the appended claims. vent them from rolling on their sides when It there refers to weight built into or suspended struck by a breeze or when the surface of the from the body of the article for the purpose of water upon which they are ?oating is rough or‘ choppy. Decoys having a concave, bottom, such 30 stabilizing or assisting to stabilize the same, or ballast disposed within the body as in the hold as provided by the invention, do not require of a ship. ' weights and ride upright with greater ease Although soft rubber, a rubber-like composi and stability than conventional decoys having tion or other material possessing similar charac weighted flat bottoms. This concave bottom teristics is preferably'employed to construct ar construction is likewise advantageous in chil dren’s toys and the like which simulate ?sh, wa 35 ticles of the type provided by the invention, they may within the scope of the invention be made terfowl, frogs and other animate objects and are of wood, compressed cellulosic material, such'as intended to float in water. It applies alike to papier-maché, pressed fibre board or the like, or relatively small articles of this class intended for use in bathtubs, wading pools and the like, 40 of synthetic resins, preferably those of the ther moplastic variety, and may be either hollow or as well as ?oats for use at the swimming pool of substantially solid construction. The material or beach and su?iciently large and buoyant to employed must ‘either be non-hydroscopic, at permit a child to ride thereon. least to a degree which will prevent the article Another advantageous feature of the inven tion resides in constructing the article of such 45 from becoming water-logged, or the article may be surfaced with a coating of waterproof mate materials as soft rubber, waterproofed or rub‘ rial, such as, for example, shellac, spar Varnish berired fabric or the like. Preferably, when con- ' v or one of the many waterproof paints, such as structed of soft rubber or the like the article is hollow with walls of such thickness that they those having a bitumastic, synthetic resin or may be collapsed but possess sufflcient resilience 60 latex base. . , that they will return to their intended shape in The accompanying diagrammatic drawing il normal service without the use-of internal air lustrates a decoy duck embodying the features pressure or the like. This makes itlpossible to provided by the invention. It will be understood, materially reduce the bulk of the article for trans or course, that the invention is not limited to portation and storage and materially reduces or decoys but contemplates other articles of the pensive to manufacture, light in weight, rugged eliminates breakage. Such construction is of ma 2 2,891,476 ~ general class above mentioned embodying some or all of the features provided by the invention. Figure 1 of the drawing represents a longi tudinal section of the decoy duck. curate explanation of what actually occurs but the bene?t of the concave bottom, when thus ' Figure 2 represents a front view of the decoy illustrated in Figure 1. Figure 3 illustrates the approximate shape of V the decoy when compressed or ?attened for ship ment or for expelling air from the Space beneath the concave bottom. used, is immediately evident when it is attempted to lift the decoy vertically from the surface of the water since considerable force is required to accomplish this. I A suitable anchoring lug 8 having an opening 9 provided therethrough is preferably provided atone or at each end of the decoy adjacent the 10 bottom edge 5. These lugs, in the case here illus Referring to the drawing, it will be noted that trated, are formed integral with 'and are of the this particular decoy is hollow in construction. same material as the wall I but they may comprise The relatively thin walls, which are designated by lugs, eyes, snaps or the like of metal or other ma the reference numeral I, are of rubber compound terial attached to the decoy in any convenient -or similar .resilient material and may be cast, 15 manner. These anchoring lugs are not intended molded. or blown to the desired contour in any for the attachment of weights to stabilize the of several well known manners. The general decoy or act as ballast, since this is not required, method of manufacture does not constitute a but simply provide a means of securing or anchor novel part of the present invention and a detailed ing the decoy in a ?xed location so that it will not description thereof is not necessary to an un float away in a current or breeze. A sum 20 There are, of course, many other speci?c forms of reentrant bottom construction which product is_ employed in the wall structure of the may be employed within the scope of the in decoy to insure resilience and preferably clay, derstanding of the inventive features. cient amount of latex or any similar synthetic ?brous material or other filler is incorporated with the latex in su?icient quantities to lend the walls enough rigidity that the decoy will retain ' its shape in service without resorting to the use vention in decoys and other articles of the class above mentioned, but that illustrated is deemed adequate to teach the practical application of this ' feature of the invention. The rubber decoy here illustrated is, as pre viously indicated, adapted to be readily manu tion. Preferably, a small opening is provided through 30 factured by molding, casting or blowing and, when formed with an exterior mold, the interior the wall at some point above the water level to surface of the latter is preferably roughened in equalize the air pressure inside the body with a definite pattern to leave a pattern in the outer the atmosphere. Such an opening, indicated at 2 surface of the decoy which simulates the wings in Figure l, is provided in the case here illus of superatmospheric internal pressure or in?a trated on the under side of the bill 3 but it may, when desired, be disposed at any point in the head, tall or back. This permits air to be forced and feathers of a duck. To further impart a life like appearance to the decoy, it may be painted in colors closely corresponding to those of the particular variety of waterfowl which the decoy is intended to attract or suitable pigments for from the interior of the decoy by pressing against its sides, forcing it to assume the approximate 40 accomplishing this purpose may beincorporated shape illustrated in Figure 3. Thus, it may be in the material of which the walls are com made to occupy a relatively small space for pack posed. Ordinarily, the basic or predominant ing and transportation. _ color of the waterfowl's feathers is incorporated The decoy is provided with a reentrant or con cave bottom 4 which preferably is of relatively 45 as a pigment in the latex mixture and its other colors are painted on or applied with a mask and large area and extends well up into the body, spray after the article is cured. The eyes and as illustrated. When the decoy is placed on the water its lower edges 5, where the walls of the 1 bill may be given a natural appearance in the concave bottom meet the side and end walls, ex same manner. This method of treatment is also This causes the decoy to ride upright or on an It will be apparent that a decoy such as illus applicable to toy waterfowl, ?sh, frogs and other tend beneath the surface of the body of water in 50 articles of the general class contemplated by which the decoy is floated, sealing the space be the invention. neath the concave bottom from the atmosphere. trated in Figures 1 and 2 may be constructed with ‘even keel and obviates the tendency, common to ?at bottom decoys, to keel over or roll on one 65 walls of relatively rigid, rather than resilient. material. Also, when desired, it may be of sub side or the other when they are not weighted. stantially solid construction, except for the re Although unnecessary in most instances, even entrant or concave bottom, in which case the greater stability in the water maybe achieved body may be either resilient or substantially rigid with the concave bottom decoy illustrated by ?at tening it to approximately the shape illustrated in Figure 3, holding the lower edges 5 beneath the ‘ surface of the water and then allowing it to ex pand to normal shape. This forces a large por tion of the air from beneath the concave bottom and, upon expanding. water from the surround- I material. _ I ' The invention: also contemplates lining the walls of a hollow bodied decoy, such as shown in the drawing, with gum rubber or the like which will flow into a puncture and seal the same. The gum rubber liningmay be applied to the entire interior surfaceof the'walls or only to the con ing body thereof will be forced up ‘into the space cave bottom and that portion of the side and end from which the air has been expelled to equalize walls which arebeneath and immediately above pressure in this zone. This is shown diagram matically in Figure 1 where the surface of the . the water line when the decoy is in use. Such surrounding water is indicated at 8 and the 70 treatment renders the decoy shotproof or in other words, will prevent water from leaking in, higher water level beneath ‘the concave bottom through a puncture caused by gunshot, in suf? is illustrated at 1. Water thus enclosed beneath cient quantities to swamp or sink the decoy and the concave bottom and held in place by the pres will. also prevent destruction of the seal, beneath sure of the surrounding body of water apparently the concave bottom, by gunshot. This treat acts as ballast. This may not be an entirely ac ment is advantageous-regardless of whether the 3 2,891,475 walls are constructed 0! resilient or'rigid ma terial. Iclaim: ' internal and external pressure thereon, the nor mal shape of the bottom wall being substantially concave and de?ning a space which extends from ' 1. A waterfowl decoy having a substantially the line of juncture of the bottom wall with the hollow body formed by walls I of material, such as soft rubberv'composition, possessing sum- i side walls upwardly to a level above the surface of a surrounding body of water in which the de cient rigidity ‘to retain the intended shape 0! coy is ?oated; the decoy without in?ation vand su?iciently ~ resilient to ‘permit collapsing the decoy when ‘ ' ‘3. An article of the class described having a substantially hollow body de?ned by walls of not in service, said walls including a closed 10 resilient material possessing suiilcient rigidity to retain their intended shape without in?ation but bottom of substantially concave contourdeiin permitting the article to be collapsed when not in’ ing a space of suillcient size to impart ?oating service, the bottom wall being substantially con stability to the decoy without the aid of added cave- and de?ning a space within said body which weight or ballast; ' , ' 2. A waterfowl decoy of substantially hollow 15 is’ entirely con?ned when the article is ?oated construction‘, de?ning-walls formed of ' resilient material, such as soft rubber composi tion, capable of being collapsed and capable of returning to'normal shapeuponlequalization of a and imparts ?oating stability thereto without the use of added weight or ballast. JOSEPH B.