Патент USA US3023988код для вставки
March 6, 1962 w. F. HUCH 3,023,982 BALLOON LOAD HARNESS Filed Aug. 28, 1959_ II% 1 , 4O . a.‘ . Wz'Zlz'amFHlwh, 30 3mm 26 30 Mt United States Patent 0 M1C@ 1 3,023,982 BALLOON LQAD HARNESS Wiliiam F. Huch, St. Paul, Minn, assignor, by nresne as signments, to the United States of America as repre sented by the Secretary of the Navy Filed Aug. 28, 1959, Ser. No. 836,836 3,023,982 ' Patented Mar. 6, 1962 2 rim 38 as by means of a tape 40 from a roll 42 and the application of heat to provide a ?rm juncture at 44. The upper end of the load line 28 is then knotted to provide a head 46 which is inserted in the lower end of the cylin~ der 26, whereupon the lower part of the cylinder is gathered so as to closely embrace the line below the head and there securely tied as at 48. With this construction it is apparent that the load stress This invention relates to high altitude plastic balloons is transmitted by the bias-mesh cone 16 evenly to the cir of the bottom-appendix type, and is concerned more par 10 cumference of the balloon rim, so that the balloon plastic ticularly with an improvement in the suspension of the cannot be subject to local stress, and thus a frequent cause load. of balloon failure on high altitude ?ights is eliminated. The load often imposes severe stresses on the bottom of The cone 16 has the additional property, by reason of 3 Claims. (Cl. 244-31) such a balloon. It has been the custom to employ a num its porosity, of providing a bottom opening for the balloon. ber of strings, usually six, uniformly spaced circumferen 15 A standard or other suitable skirt type appendix (not tially, taped to the open bottom of the truncated cone of shown) is used. plastic material of the balloon, and secured to a load ring, to suspend the load. Because of the strings, the balloon material was subjected to localized, rather than even, Obviously many modi?cations and variations of the in vention are possible in the light of the above teachings. It is therefore to be understood that within the scope of stressing, and, unless applied with extreme care, the taping 20 the appended claims the invention may be practiced other could tear the balloon material. It is an object of the invention to provide a balloon wise than as speci?cally described. I claim: constructed to support a load in such a manner that the 1. A high altitude balloon system comprising a plastic load does not locally stress the balloon fabric. balloon having an inverted frusto-conical bottom portion, Another object is to provide a plastic balloon with a 25 a perforated inverted cone of bias-mesh woven fabric se bottom load attachment having a valving opening and so cured at its base to the lower edge of said bottom portion, constructed as to relieve the plastic of any local stresses the apex portion of the cone being open, a load line closely which might tend to arise from the load. embraced by the apex portion of the cone, and a load Further objects and advantages of the invention will suspended from the line, the line having within the cone a appear as the description proceeds. 30 terminal head engaging the cone and of a size such that The invention will be better understood on reference it will not pass through the apex portion of the cone, to the following description and the accompanying more whereby the cone will transmit load stress uniformly to or less schematic drawing, in which: the circumference of said bottom portion. FIG. 1 is an elevational view of a fully in?ated balloon 2. A high altitude balloon system comprising a plastic system constructed in accordance with the invention. 35 balloon having an inverted frusto-conical bottom portion, FIG. 2 is an enlarged elevational view showing features a skirt of the same girth as and sealed throughout its of the invention in detail. upper circumference to the bottom margin of the balloon FIG. 3 is a fragmentary view, partly in elevation, taken plastic, said skirt having a mosquito netting mesh with as indicated by the line 3-—3 in FIG. 2. the threads biased to the ends of the skirt, and a load line FIG. 4 shows a ?rst step in a method of making the 40 having a head in and engaging the skirt, the bottom of the harness. skirt being gathered and secured about the line below the FIG. 5 shows a panel resulting from the second step. head and positively preventing the head from escape FIG. 6 shows a cylinder formed from the panel of therethrough. FIG. 5. 3. In a high altitude balloon system, a plastic ?lm FIG. 7 shows the cylinder being taped to the bottom of 45 balloon having an inverted frusto-conical bottom portion, the balloon plastic. a bias-mesh netting skirt whose upper end is continuously Referring now more particularly to the drawing, dis sealed to the entire circumference of the open bottom closing an illustrative embodiment of the invention, there margin of said portion, a load line terminating at its upper is shown at 10 a high altitude balloon system comprising end in a knot within the skirt, the lower end of the skirt a balloon 12 of plastic such as polyethylene or Mylar 50 being gathered and tied about and against the line below having, when, in?ated, an inverted frusto-conical bottom the knot and engaging the bottom of the knot and posi portion 14. An inverted cone 16 of light close-mesh cloth, tively preventing the knot from passing therethrough, the such as mosquito netting or curtain material, with the mesh entire load carried by the balloon being suspended from biased, as shown at 18, is suspended from the bottom por the line. tion 14, and a load line 20, carrying a load 22, is sus~ 55 pended from the cone. References Cited in the ?le of this patent The cone 16 in accordance with the invention may be UNITED STATES PATENTS made from a cylinder 26 formed by cutting unbiased mesh cloth from a bolt 28 of suitable wdith at suitably spaced 1,336,030 Gammeter ___________ __ Apr. 6, 1920 45° diagonals 30 to form a parallelogram panel 32 and 60 2,728,540 Ebneter ______________ __ Dec. 27, 1955 suitably seaming together the other two edges 34, as at 2,771,256 Ryan _______________ __ Nov. 20, 1956 36, the edges 30 thus constituting the ends of the cylinder, and the mesh being now biased, as seen at 18. The panel 32 is dimensioned so that the cylinder diameter conforms to that of the rim 38 of the balloon portion 14. An end 30 of the cylinder 26 is now connected to the 2,880,946 2,900,147 Froehlich ____________ _.. Apr. 7, 1959 Huch _______________ __ Aug. 18, 1959 538,414 France ______________ __ Mar. 18, 1922 FOREIGN PATENTS '