Abstract: This invention relates to novel disubstituted benzylsulfonamides and benzenesulfamates, agriculturally suitable compositions thereof and a method of their use as preemergent or postemergent herbicides or plant growth regulants.
Abstract: Benzenesulfonamide compounds such as N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-1,4-dihydro-3-methyl-4 -oxo-1-phenyl-indeno[1,2-C]-pyrazole-5-sulfonamide and N-[(4-methoxy-6-methyl-pyrimidin-2-yl)aminocarbonyl]-1,4-dihydro-3-methyl- 4-oxo-1-phenyl-indeno[1,2-C]pyrazole-5-sulfonamide, agricultural compositions containing them, and their herbicidal utility are disclosed.
Type:
Grant
Filed:
January 30, 1986
Date of Patent:
July 7, 1987
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Robert J. Pasteris, Ramaurthi Muthukrishnan
Abstract: A continuous process for making a solid solution of two or more metals or metal oxides by ionic reaction and coprecipitation during high intensity mixing.
Abstract: Silver halide emulsions with a narrow and uniform particle size distribution are made by introducing monodisperse seed crystals into a gelatin-salts mixture, followed by splash-preparation procedures to make the final emulsion.
Type:
Grant
Filed:
January 13, 1986
Date of Patent:
July 7, 1987
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Douglas L. Wilhite, Daniel J. Mickewich
Abstract: A vapor phase process for selective conversion of fluorodichloromethane and carbon tetrachloride to fluorotrichloromethane, difluorodichloromethane, difluorochloromethane and chloroform by contacting a solid catalyst of an activated mixture of iron oxide and rare earth oxides.
Abstract: A portable end prep lathe having presettable mechanical structure operable in response to rotation of a tool head for controlling the angle of a bevel cut on a pipe.A frame is supported relative to a pipe by a mast having a threaded section. The frame carries a rotatable tool head having a tool slide movable to advance a tool radially of the mast. The rate of radial advance of the tool slide is controlled by cam and cam follower structure mounted on the frame and tool head, respectively, and with the number of cams controlling the rate of advance per revolution of the tool head. The tool head is advanced axially of the mast and a pipe by means responsive to rotation of the tool head, including a star wheel mounted on the frame and drivingly connected to a nut threaded on the threaded section of the mast.
Abstract: A composition for making magnetic recording elements comprising finely divided particles of magnetic pigment dispersed in an organic medium comprising polymeric binder, lubricant, dispersing agent and porosity control agent dispersed in volatile organic solvent.
Type:
Grant
Filed:
July 3, 1985
Date of Patent:
July 7, 1987
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Hendrikus F. Huisman, Henricus J. M. Pigmans
Abstract: Insulating fabric having a knitted base fabric incorporating air-entrapping cells on one or both sides. The base fabric is knit from a high bulk acrylic yarn and a combination polyester and cotton yarn, the yarns being knitted separately in selected fabric courses. The inner face of the fabric is formed of the high bulk yarn, to provide a soft, warm and comfortable interior surface when worn. The outer face of the fabric is formed of the polyester/cotton yarn, which provides a knitted framework for anchoring and stabilizing the high bulk yarn in the fabric. Following knitting, the fabric is subjected to a series of finishing operations which include scouring, padding, drying, napping and calendering. As the result of repeated washings, the insulating fabric of the invention increases in thickness to enhance its heat insulating capability and provide increased warmth.
Abstract: Triazine-substituted azobenzenesulfonamides useful as preemergent and postemergent herbicides, selected from compounds of Formulae I or II ##STR1## or agriculturally suitable salts thereof, wherein R, R.sub.1, R.sub.2, R.sub.3 and A are as defined herein.
Abstract: The addition of melamine/formaldehyde resins causes ethylene copolymers containing CaCO.sub.3 and alumina trihydrate to have lower swell on burning and has smaller and more uniform cell formation in the ceramic ash than compositions without such resins present.
Abstract: A class of ortho-alkyl- and ortho-alkenyl-substituted benzenesulfonamides are useful as general or selective pre-emergent or post-emergent herbicides and as plant growth regulants.
Abstract: Sulfur-modified chloroprene polymers and copolymers can be prepared by a free-radical polymerization process in an alkaline, aqueous emulsion, wherein a thiuram disulfide having aliphatic, acyclic or cyclic substituents on both nitrogen atoms, the total number of carbon atoms of those substituents being 12-24, also is present. This process avoids the time-consuming separate peptization step and reduces the capital requirements by eliminating peptization tanks and their associated equipment.
Abstract: An impeller for a pump, especially a vortex pump, provided with one or more straight or curved vanes arranged radially. Vortex pumps are used e.g. for pumping sewage, for which purpose they are well adapted. However, a drawback with such pumps known so far has been a rather low efficiency and a low lift curve. In the vortex pump of the invention, this problem is eliminated by providing the edges of the vanes with flanges essentially perpendicular to the vane surface.
Abstract: A microwave filter which is optimized to reduce its dimensions, weight, cost, and manufacturabiity includes a filter body which is preferably manufactured by pressure die-casting of an aluminum alloy. In the filter body are formed a plurality of cavities in which resonators as well as tuning and connection screws are located. The cavities are so located with respect to each other that a line which joins the centers thereof appears as the series of connected line segments which are inclined with respect to each other at angles which exceed 90.degree.. To compensate the filter for the relatively larger coefficient of expansion associated with the use of die-castable alloys, the resonators and tuning screws employ materials which are different than that used in the filter body. Electrical losses are minimized by varying, from cavity to cavity, the ratio of the diameter of the cavity to that of the resonator. The weight of the filter is further reduced by cavities or voids which are formed therein.
Type:
Grant
Filed:
October 16, 1984
Date of Patent:
June 30, 1987
Assignee:
Telettra-Telefonia Elettronica e Radio S.p.A.
Abstract: A casing grip assurance interlock system connected with the elevator and the spider of a well casing installation apparatus including positioning valves respectively actuated by the elevator and the spider to permit actuating fluid pressure to be admitted to either the elevator or the spider only when the other of the elevator or spider is positioned to firmly grip the well casing.
Abstract: An all plastic fastener adapted, in one embodiment, for use as a seal for a coin bag or the like, and in another embodiment as a cable tie or the like.The seal comprises a housing having an aperture therethrough and an integral shackle extending from the housing for insertion into the housing opening. The shackle has ratchet teeth along the outer edges, and the housing has internal means for engaging the ratchet teeth when the shackle is pulled through the opening, to prevent reverse movement of the shackle in the housing. In a preferred embodiment of the invention the shackle has an axial slot disposed in the portion having the teeth to allow the sides of the shackle to flex together when it is drawn through the housing. When used as a security seal, a locking member may be inserted into the slot between the shackle portions in the housing to maintain them pressed outwardly into engagement with the locking members in the housing.
Abstract: A shunt connecting apparatus is equipped with a rectangular housing made of insulating material, housing to which rows of terminals are attached, and an elastic contact piece for shunting two adjacent terminals. Guide grooves are formed between the terminals of the housing. The end of the elastic contact piece widens and contains a cutout. The contact piece is selectively inserted into one of the guide grooves such that adjacent terminals are shunted by the widened portion of the contact piece elastically contacting adjacent terminals.
Abstract: This invention describes a composition of matter and a method of treating agricultural substrates in which an active ingredient selected from the group consisting of fungicides, bactericides, insecticides, insect repellents, herbicides and plant growth regulators and mixtures thereof is utilized in conjunction with an amount of a glycoside dispersing agent selected from the group consisting of fructoside, glucoside, mannoside, galactoside, taloside, guloside, alloside, altroside, idoside, arabinsode, xyloside, lyxoside and riboside and mixtures thereof which is sufficient to form an emulsion or dispersion of the active ingredient.