摘要:
A battery employing an alkali metal-sulfur electrochemical reaction pair in an anhydrous ammonia electrolyte environment including an anolyte and method for suppressing formation of a bronze between the ammonia and the metal and a method for making the anolyte. The anolyte includes a bronze suppressing, conductivity enhancing salt of the alkali metal and a bronze suppressing aromatic organic dissolved in the anhydrous ammonia.
摘要:
Novel oxygen selective electrode comprising a coating on said anode consisting of delta manganese dioxide. This outer coating on the anode may be placed on the anode electrochemically by electrolyzing an acid saline solution having dissolved therein sufficient manganous chloride. Sufficient manganese dioxide is plated on said anode when the chlorine evolution essentially ceases during electrolysis.
摘要:
Novel oxygen selective electrode comprising a coating on said anode consisting of delta manganese dioxide. This outer coating on the anode may be placed on the anode electrochemically by electrolyzing an acid saline solution having dissolved therein sufficient manganous chloride. Sufficient manganese dioxide is plated on said anode when the chlorine evolution essentially ceases during electrolysis.
摘要:
A feeding device for use by persons with limited or no use of their arms, wherein a spoon is mounted on supporting and counterbalancing levers and is associated with a mouth-piece in such a manner that the user can manipulate the spoon to lift food from a dish, can then place the spoon on a fixed support and then adjust the spoon to a position for convenient eating of the food. The spoon mounting includes an adjustable support for a counterbalancing spring. All the parts are mounted on a flat base which is adapted also to support the food dish.
摘要:
Conventional golf balls are engineered according to aerodynamic specifications, basically to perform in flight. These balls are not suitable for the terrain of the grass. No consideration has been given to make conventional golf balls putting compatible. Conventional balls are aerodynamic and the improved golf ball for putting, presented in this invention, is a "Terradynamic Ball". This invention provides a ball engineered primarily for putting and is accomplished by giving the ball more inertia and power and by decreasing friction and resistance. It is designed according to the Laws of Motion, which states that, "Every body continues in its state of rest, or motion in a straight line, unless it is compelled by some external force to change that state". This "Terradynamic Ball" comprises a heavy metal core, to provide greater inertia, and a lower center of mass, and a cover whose outer surface is uniformly even and smooth, minimizing friction rolling over grass. These factors, working together, in combination, develope greater stability in the rolling ball, and, consequently, create a greater accuracy in putting.
摘要:
A method for detecting exposed steel in the surface of reinforced concrete, comprising the steps of: moving an electrode across an exposed surface of said concrete; connecting said electrode to one terminal of a power source; connecting the other terminal of said power source to the reinforcement of said concrete; said power source providing a high voltage current effective to produce a spark across an air gap occurring when exposed steel is detected, said spark initiating a means to signal the occurrence of said exposed steel.
摘要:
A method of installing a coated valve metal electrode as impressed-current anode in a cathodic protection system for a steel-reinforced concrete structure comprises providing a roll of coated valve metal mesh, unrolling the mesh and installing it in conformity with the structure, fixing the mesh to the structure and embedding the mesh in an ion-conductive overlay. The mesh is a highly expanded valve metal sheet providing multiple current paths and therefore enhanced redundancy. Current distributor strips can be welded to the mesh after unrolling.
摘要:
A catalytic polymer electrode compries a current conducting polymer body forming an electrode base which is provided with catalytic valve metal particles fixed to its surface. A current conducting body of carbon filled thermoplastic polymer is heated to soften its outer surface, and the catalytic valve metal particles are pressed onto its softened surface and thereby attached to the surface of the polymer body. Such a catalytic polymer electrode used as an anode in an impressed-current cathodic protection system comprises a catalyst to provide a reduced oxygen potential. Such catalytic polymer anodes may be applied in systems for impressed current cathodic protection of reinforced concrete structures, such as bridge decks, support members, parking garages, or of buried or submerged steel structrues such as gas and oil pipelines, offshore production platforms, fuel storage tanks, well casings.
摘要:
The formation of hardness-caused deposits on the cathodic surfaces of cells used in the electrolytic production of hypochlorite from impure saline solutions is reduced and good current efficiencies are realized by employing flat, continuous cathodes having a surface roughness of less than 2.54 .times. 10.sup.-.sup.4 cm. and passing said solution by said cathodes during electrolysis at a velocity of from 0.3 meter/sec. to the number which is equal to the log expressed by the formula: Log velocity (in m/sec/3) = 1.0 - (available Cl.sub.2 concentration, in grams per liter, divided by 4).
摘要:
The galvanic cathodic protection of reinforced concrete structures such as bridges, buildings, parking structures, piers, and wharves, is enhanced by the use of an inert water absorbent solid. The absorbent solid and chemicals are mixed with a cementitious binder to form an activating matrix. This matrix surrounds a sacrificial metal anode such as zinc, or aluminum or their alloys. The metal anode is electrically connected to the ferrous reinforcing member by a metallic conductor. The water absorbent solid may be a clay such as bentonite or a hydrated mineral such as vermiculite. It is preferably in the form of discrete particles dispersed throughout the binder. The inclusion of the absorbent solid in the activating matrix serves to increase the protective current, thereby reducing corrosion of the reinforcing components of the concrete structure.