Abstract: An apparatus for providing a secondary seal on mixers and similar rotating equipment that includes a stop assembly and a collar which cooperate to minimize translational movement of a mixer shaft during shutoff and to form a reversible seal between the vessel and the shaft. The apparatus provides a sealing engagement between the mixing vessel and the rotatable shaft of a mixer offering improved safety during mechanical seal replacement.

Abstract: An Internet user transfers directly to a domain within an e-community without returning to a home domain or re-authenticating. The user's home domain server prepares and forwards a home domain identity cookie (DIDC) with an enrollment request to a user's browser, with the enrollment request being redirected to an affiliated domain server in the e-community. The affiliated domain server prepares and sends an affiliated DIDC with an enrollment confirmation to the user's browser, redirecting the enrollment confirmation to the home domain server. The home domain server modifies the home DIDC to include a symbol which indicates successful enrollment at the affiliated site. The process may be repeated for a plurality of affiliated domains to achieve automatic enrollment a portion of or an entire e-community.

Abstract: A method, software, and device for encrypting data, exchanging keys, and processing data that includes exponentiating by iteratively cisponentiating according to cisponentiator C(G, E, B, R, m)=GEBR mod m, wherein G is a fleeting multiplicand base, E is an enduring cisponent, B is a recurring multiplier, R is an enduring factor, and m is a persistent modulus. E may be a fixed characteristic of the cisponentiator. E may also be a power of 2. R may be fixed. In one of many possible combinations, E is a fixed characteristic of the cisponentiator, while R is fixed. In that case also, E may be a power of 2. Modulus m may be fixed. In one of many possible combinations, E is a fixed characteristic of the cisponentiator, R is fixed, and m is fixed. As one of many alternatives, data may be encrypted using asymmetric encryption.

Abstract: A data encryption method performed with ring arithmetic operations using a residue number multiplication process wherein a first conversion to a first basis is done using a mixed radix system and a second conversion to a second basis is done using a mixed radix system. In some embodiments, a modulus C is be chosen of the form 2w−L, wherein C is a w-bit number and L is a low Hamming weight odd integer less than 2(w−1)/2. And in some of those embodiments, the residue mod C is calculated via several steps. P is split into 2 w-bit words H1 and L1. S1 is calculated as equal to L1+(H12x1)+(H12x2)+ . . . +(H12xk)+H1. S1 is split into two w-bit words H2 and L2. S2 is computed as being equal to L2+(H22x1)+(H22x2)+ . . . +(H22xk)+H2. S3 is computed as being equal to S2+(2x1+ . . . +2xk+1). And the residue is determined by comparing S3 to 2w. If S3<2w, then the residue equals S2. If S3>2w, then the residue equals S3−2w.

Abstract: An impeller assembly is mountable onto a rotatable shaft that has a flange extending radially from the shaft and rotating with the shaft. The impeller has at least one blade pair member having two opposed blades and central hub portion having a hole therethrough with an inner diameter at least as large as the outer diameter of the shaft, a plurality of corresponding mounting holes provided in each of the flange and the blade pairs, and a plurality of bolts for fastening the blade pair to the flange via the mounting hole.

Abstract: An improved flexible support for a steady bearing in rotational contact with the surface of a shaft allows the bearing and housing to substantially track the contact surface of an impeller shaft when the shaft is subject to elastic deflection during operation. The flexible support employs a flexible disc pack, which is comprised of a plurality of thin, flexible disc elements in a stacked arrangement. The disc pack is mounted to a support ring and is also mounted to the bearing housing such that the bearing housing and other bearing elements are capable of deflection to substantially align with the axis of the impeller shaft when the shaft deflects.

Abstract: An adjustable steady bearing support assembly and method provides support for a bearing in rotational contact with a shaft in a vessel such as a mixing vessel. The assembly and method allows axial movement of the bearing along the shaft in response to changes in the radial dimensions of the vessel while providing radial support of the bearing. The assembly employs strut assemblies having pivotally mounted strut pairs with an included angle between the struts in each pair to resist torsional forces on the bearing.

Abstract: An adjustable steady bearing support assembly and method provides support for a bearing in rotational contact with a shaft in a vessel such as a mixing vessel. The assembly and method allows axial movement of the bearing along the shaft in response to changes in the radial dimensions of the vessel while providing radial support of the bearing. The assembly employs strut assemblies having pivotally mounted strut pairs with an included angle between the struts in each pair to resist torsional forces on the bearing.

Abstract: An improved flexible support for a steady bearing in rotational contact with the surface of a shaft allows the bearing and housing to substantially track the contact surface of an impeller shaft when the shaft is subject to elastic deflection during operation. The flexible support employs a flexible disc pack, which is comprised of a plurality of thin, flexible disc elements in a stacked arrangement. The disc pack is mounted to a support ring and is also mounted to the bearing housing such that the bearing housing and other bearing elements are capable of deflection to substantially align with the axis of the impeller shaft when the shaft deflects.

Abstract: An adjustable steady bearing support assembly and method provides support for a bearing in rotational contact with a shaft in a vessel such as a mixing vessel. The assembly and method allows axial movement of the bearing along the shaft in response to changes in the radial dimensions of the vessel while providing radial support of the bearing. The assembly employs strut assemblies having pivotally mounted strut pairs with an included angle between the struts in each pair to resist torsional forces on the a bearing.

Abstract: A system, method and article of manufacture for integrating object security service authorization in a distributed computing environment, includes one or more processors, a storage system, a system bus, a display sub-system controlling a display device, a cursor control device, an I/O controller for controlling I/O devices, all connected by system bus an operating system such as the OS/2* operating system program (OS/2 is a registered trademark of International Business Machines Corporation), one or more application programs for executing user tasks and an object oriented control program, such as, DSOM Objects program, which is a commercially available product of International Business Machines Corporation, the object oriented control program including mapping a set of methods defined by a given class to a finite and a fixed set of access rights from which a method required access rights set is assigned, and selecting the access rights set by examining two components, first, a family right type and, second, a

Abstract: A system and method for controlling client access to enterprise resources through a middle tier server. Enterprise resource authorizations are maintained in a middle tier server. Users authenticate with the server causing it to map and transform the client access authorization into enterprise resource credentials. Enterprise resources are accessed after authorizing using the transformed credentials.

Abstract: A network system server that provides password synchronization between a main data store and a plurality of secondary data stores is disclosed. The network system server includes a security server, which is coupled to the main data store, a plurality of clients, which is coupled to the security server for accessing the main data store wherein each client maintains a unique, modifiable password, a password synchronization server, which is coupled to security server and the plurality of secondary data stores, and a password repository, which is coupled to the password synchronization server, that stores the passwords. One of the secondary data stores can retrieve the passwords via the password synchronization server so that each client is able to maintain a single, unique password among the plurality of secondary data stores. Password retrieval is instigated by at least one of the plurality of secondary data stores regardless of the current password status of the secondary data stores.

Abstract: A network system server that provides password synchronization between a main data store and a plurality of secondary data stores is disclosed. The network server further includes a security server, which is coupled to the main data store, a plurality of clients, coupled to the security server for accessing the main data store wherein each client maintains a unique, modifiable password, and a password synchronization server, coupled to the security server and the plurality of secondary data stores, that provides password propagation synchronization to each of the secondary data stores from a user associated with one of the plurality of clients so that user is able to maintain a single, unique password among plurality of secondary data stores. The password propagation is imposed on the plurality of secondary data stores regardless of the current password status of the secondary data stores.

Abstract: A system, method and article of manufacture for improving object security in distributed object systems, in an information handling system employing object oriented technology, includes one or more workstations, each workstation having one or more processors, a memory system, an input/output subsystem which may include one or more input/output controllers, each controlling one or more input/output devices, such as communications devices, cursor control devices, keyboards, and display devices, an operating system program such as the OS/2 multi-tasking operating system (OS/2 is a registered trademark of International Business Machines Corporation), and an object oriented control program such as the Distributed System Object Method (DSOM) program available from International Business Machines Corporation, wherein the object oriented control program includes a vault object containing security credentials for objects in the distributed system.

Abstract: A system, method and article of manufacture, for improving object security in an object oriented system, includes one or more processors, a memory system, one or more I/O controllers, each controlling one or more I/O devices, a bus connecting the processors, the memory system and the I/O controllers, an operating system controlling operation of the processors, the memory system and the I/O controllers, and an object oriented control means which includes means for grouping objects which share common access control policies, where an access control list becomes associated with each object group and the policy applicable to the members of the group. An object may be part of multiple groups, and based upon an environment's policy, granting access to the object may be based on a single default object group or on the access granted by the union of all of its object groups.

Abstract: A system, method and article of manufacture, for improving object security in distributed object systems, in an information handling system employing object oriented technology, includes one or more processors, a storage system, a system bus, a display sub-system controlling a display device, a cursor control device, an I/O controller for controlling I/O devices, all connected by system bus an operating system such as the OS/2* operating system program (OS/2 is a registered trademark of International Business Machines Corporation), one or more application programs for executing user tasks and an object oriented control program, such as, DSOM Objects program, which is a commercially available product of International Business Machines Corporation, the object oriented control program including a system authorization policy (SAP) object, a system authorization oracle (SAO) object, and a system registration object (SRO). The SAP object encapsulates management of a resource authorization policy.

Abstract: A steady bearing on a mixer shaft in a vessel supported from the walls of the vessel by a plurality of pairs of parallel struts which are pivotably mounted at their ends in fixed parallel clevises, the inner clevises being included in a bearing support subassembly and the outer clevises being attached to the vessel wall. The struts and clevises define a plurality of supportive parallelogram structures. The steady bearing is free to slide axially along the mixer shaft. As the vessel expands or contracts in response to changes in internal pressure or temperature as required by process conditions, the shape of the parallelogram structures is free to change to lengthen or shorten the parallelogram diagonals, and in response the steady bearing moves to a new position along the shaft. Radial support of the bearing is maintained at all axial positions assumed by the bearing.

Abstract: Mixer apparatus including a high horsepower motor and transmission drive for an impeller, together with associated shafts, impellers and a bearing and seal assembly, are supported on a tank without excessive loading and vibration of the top head of the tank and without special construction to support the apparatus from the foundation. The support structure of the mixer apparatus is provided by a machine base having connected beams on which the motor and the transmission (gear box) are located. A noise containment enclosure on the base may be used to lower radiated noise levels. The impeller shaft and shaft extensions thereof are disposed in telescoping relationship with the transmission, aligned along the same axis. The machine base is parallel to the foundation and is supported on vertical columns, which depend from one end of the base and from opposite ends of a cross beam at the other end of the machine base.

Abstract: A method for making an end connection for a shaft made of composite material, which accommodates for differences in stiffness, thermal expansion, and chemical resistance between the shaft and the member connected thereto and operates under oscillating torque, thrust, and bending loads, and also provides for manufacturing flexibility in enabling the shaft and connection to be produced as separate parts which are formed when final assembly is to occur. The connection has a male insert which is inserted into the end of the composite shaft. Axial and circumferential grooves are cut in the surfaces of the male insert and the shaft. These grooves are aligned to form circumferential and axial keyways which intersect each other. Material is injected into the keyway and polymerizes to form structural keys which transmit the thrust and torque, while locking the insert member and the shaft permanently together.