Abstract:
Electrical medical devices and methods are disclosed for the therapeutic treatment of cells and/or tissue in a living body. The electrical medical devices and methods of the invention are useful in the therapeutic treatment of cells and/or tissue which require a ''''bioelectrical signal'''' to artificially stimulate healing of the cells and/or tissue. The devices and methods of the invention provide for the generation of an undulating electrical signal having a wave-form whose rise time differs from its fall time which when coupled to the living body induces currents at the tissue level which currents in turn produce a voltage at the tissue level that is bipolar with the amplitude and frequency components of one polarity thereof being different from those of the opposite polarity thereof; the voltage that is bipolar effecting the bioelectrical signal at the cellular or tissue level for artificially stimulating healing of the cells and/or tissue.
Abstract:
An immersion type battery using seawater as electrolyte and having metallic anodes and metal halide cathodes is enclosed in a container. The container is supplied with a valve which in abovesurface conditions closes and seals the battery against entry of fluids to the battery compartment. However, when the battery is allowed to fall into water of unrestricted depth, the valve, at a predetermined pressure, will open, allowing water to infiltrate the battery and thus activate it. The opening of the valve is controlled by a valve retaining means, calibrated to permit the opening of the valve at the required pressure. The valve retaining means also prevents the valve from subsequent reclosure regardless of shock or changes in ambient pressures.
Abstract:
1. MOISTURE ACTIVATABLE POLYSULFIDE SEALANTS COMPRISING A CURABLE, LIQUID POLYSULFIDE POLYMER; A DORMANT CURING AGENT; AN ALKALINE EATH HYDROXIDE AND A HYDROLIZABLE AMINE SALT OF AN ACID WHEREIN: (A) THE POLYSULFIDE POLYMER IS SELECTED FROM POLYSULFIDE POLYMERS HAVING THE RECURRING UNIT (RSS9, WHEREIN R IS A DIVALENT ORGANIC RADICAL AND SS IS A DISULFIDE LINKAGE, AND MERCAPTO TERMINATED POLYSULFIDE POLYMERS HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 2,000 TO ABOUT 10,000; (B) THE DORMANT CURING AGENT IS INCAPABLE ALONE OF CURING THE POLYSULFIDE POLYMER AT ROOM TEMPERATURE BUT CAN EFFECT SUCH BY EXPOSURE TO FREE AMINE; (C) THE HYDROLOZABLE AMINE SALT IS A SALT OF ORGANIC OR INORGANIC ACID, CAPABLE OF REACTING WITH MOISTURE IN THE AIR TO RELEASE SUFFICIENT FREE AMINE TO INITIATE THE ACTION OF THE DOMANT CURING AGENT; (D) THE ALKALINE ERTH HYDROXIDE IS A WEAKLY BAISC HYDROXIDE CAPABLE OF FORMING A SALT WITH THE ACID RELEASED FROM THE HYDROLIZABLE AMINE SALT OF (C) WHEN SAID AMINE SALT RELESES FREE AMINE UPON REACTION WITH MOISTURE IN THE AIR; AND (E) THE AMOUNT OF AMINE SALT PRESENT IS FORM ABOUT 1 TO ABOUT 10 WEIGHT PERCENT BASED ON THE TOTAL WEIGHT OF THE SEALANT; THE AMOUNT OF ALKALINE EARTH HYDROXIDE PRESENT IS AT LEAST STOICHIOMETRICALLY EQUAL TO THE AMOUNT OF AMINE SALT PRESENT; AND THE REMAINDER OF THE SEALANT COMPRISES THE LIQUID POLYSULFIDE POLYMER AND DORMANT CURING AGENT, FROM ABOUT 5 TO ABOUT 25 PARTS OF THE CURING AGENT BEING PRESENT FOR EACH 100 PARTS OF THE POLYSULFIDE POLYMER.
Abstract:
A lead acid storage battery having dry discharged plates contains a hydrogen ion producing salt within its container. The cell is activated by the addition of water only followed by charging. The presence of the salt prevents the formation of a deleterious corrosion. Preferred salts are the acid sulfates of the alkali metals.
Abstract:
A battery sealant carrier is impregnated with adhesive patches each of which is in the form of a closed loop. The surfaces of the adhesive patches rise above the surfaces of the carrier on at least one and preferably both sides of the carrier. The patches are produced by passing the carrier between a pair of applicators, the first of which has a surface that is sufficiently rigid and uncompressible so that it does not deform and the second of which has a surface that is sufficiently elastomeric so that it deforms during adhesive application. Preferably the two applicators apply adhesive to the carrier simultaneously. The adhesive patches applied by the second applicator are preferably applied at a higher viscosity than those applied by the first applicator. Preferably the sealant carrier is also the battery separator material, in which case there is an area of separator material inside each adhesive patch into which the adhesive has not been impregnated; alternatively, the sealant carrier may have a void area inside each adhesive patch, with the void area being provided to receive a piece of battery separator material.
Abstract:
An electric battery having an azodicarbonamide compound as the depolarizer in which the electrolyte consists essentially of an aqueous solution of zinc chloride, ammonium chloride and an ethoxylated rosin amine. It is preferred that the aqueous electrolyte solution have a pH ranging from about 2.5 to about 5. The aqueous electrolyte solution may contain from about 5 to about 50% by weight of zinc chloride, up to about 25% by weight of ammonium chloride and from about 0.1 to about 5% by weight of an ethoxylated rosin amine with the balance of the solution being water. The ethoxylated rosin amine has the following general formual
WHEREIN R is a radical selected from abietyl, dihydroabietyl, tetrahydroabietyl or dehydroabietyl corresponding with the organic radical of the rosin amine from which it was produced. X and y may range from 0 to 20 with the sum of x and y being at least 1 but not exceeding about 20. The improved electrolyte of this invention reduces the gassing rate of the zinc anode in said electrolyte, it improves the redeposition of the zinc active material during the recharging of the battery, and it provides a battery having a substantially improved cycle life.
Abstract:
A monitor apparatus is disclosed for monitoring electrical stimulation signals due to either natural or artificial electrical stimulation of a body part via a communication link such that the repetition rate of the electrical stimulation signals can be determined. The monitor apparatus comprises the subsystems: a transducer; a communication link or network; and a reciever. The transducer is adapted to sense the electrical stimulation signals generated either naturally or by an electronic organ stimulator, such as an implanted cardiac pacer, and to convert the electrical stimulation signals to audible signals such as tone bursts. These audible tone bursts are then transmitted over a communication link such as the standard telephone network to the receiver located at a remote telephone station, typically a cardiologist''s office. The receiver is adapted to measure the time interval between received tone bursts. The receiver is further adapted to display or indicate to an observer the time interval between received tone burst. If desired, the receiver can be adapted to indicate directly the repetition rate of the stimulation signals. The information is then utilized by an observer for diagnostic purposes. The monitor apparatus also includes a test means for testing the integrity of the apparatus including the transducer, the communication link and the receiver.
Abstract:
TIO2 WHEN INCLUDED IN ZINC ELECTRODES HAS BEEN FOUND TO GIVE IMPROVED SHELF LIFE IN ALKALINE BATTERIES DESIGNED TO HAVE HIGH DISCHARGE RATE CAPABILITY. NEGATIVE ELECTRODES CONTAINING THE ZINC AND TIO2 MAY BE PREPARED IN DIFFERENT MANNERS. THE INVENTION IS USEFUL IN PRIMARY ALKALINE SYSTEMS SUCH AS SILVER-ZINC AND MERCURY-ZINC.
Abstract:
A battery has a container consisting of an upper portion and a lower portion sealed together in any convenient manner. The cover may be separate from, or integrally constructed with, the upper portion of the container. Single cell or multicell as well as primary or secondary batteries may be so constructed. In multicell batteries the intercell strap connectors extend through the partitions of the cell compartments, preferably as molded inserts in the partitions. Preferably the ends of the intercell strap connectors are anchored by the container. Strap connectors may extend from end cells through the container as inserts molded therein to function as terminals.
Abstract:
An apparatus for monitoring a rectifier leg which forms a part of a system that is being supplied with electrical power from an external circuit. The rectifier leg has at least first and second series connected rectifier cells. The monitor apparatus includes a source of control power for supplying electrical power to the monitor apparatus as well as to the rectifier leg. The monitor apparatus provides an indication of open and short circuit failure of the rectifier cells while they are in use in the system and being supplied with electrical power from the external circuit or while they are being supplied with electrical power solely by external circuit or while they are being supplied with electrical power solely by the source of control power of the monitor apparatus.