Abstract: A motorcycle goggle includes a supply magazine and a take-up magazine mounted to opposite sides of a goggle frame and contain a transparent film which moves across the outer surface of a main lens to protect the main lens from mud or external matter. The main lens includes a plurality of projections attached to the lens to raise the transparent film off the main lens surface. The projections can be formed by transparent ink droplets which are printed by a silk screen process onto the outer surface of the main lens, and consist in one form of two types of ink forming each raised ink droplet.

Abstract: A deflector assembly located within the interior of a trailer for distributing dry bulk during loading of the dry bulk into the interior of the trailer. The deflector assembly comprises a deflector having a deflecting surface. The deflector has an opened position and a deflecting position, wherein the deflecting surface is not situated to deflect the dry bulk when the deflector is in the opened position and the deflecting surface is situated to deflect the dry bulk when the deflector is in the deflecting position.

Abstract: A process (20) and design tool (62) are presented for the accurate prediction of design parameters (42) for components (38) of an integrated circuit (22) during the early stages of the design of that integrated circuit (22). These predicted design parameters (42) include pin count parameters (50), propagation delay parameters (52), layout area parameters (54), dynamic power parameters (56), static power parameters (58), and total power parameters (60). With these parameters, the designer interactively modifies the design prior to the layout and prototyping of the integrated circuit (22). The dynamic power parameters (56) and total power parameters (60) may be repetitively predicted with differing input items to establish a power usage pattern for the integrated circuit (22).

Abstract: A mechanical face seal comprising two seal rings for use in water pumps and other fluids, including a resilient bellows for providing a secondary seal between one seal ring and either a housing or a rotating shaft extending through an aperture in the housing. The resilient bellows preferably comprises an elastomeric material, such as molded rubber, and has a single convolution having a general cross-sectional shape of an inverted “omega.” A finger spring member comprises a plurality of generally “U” shaped spring fingers which are adapted and deformed upon installation to provide an axial biasing force against the seal ring attached to the resilient bellows so as to urge it toward the other ring.

Abstract: A method for building a serpentine heat exchanger, particularly a condenser for refrigerating circuits being profiled in such a way to present from a lateral side view and relative to at least one part of its length an inclination the direction of which is suddenly or progressively inverted at least once relative to a plane which is substantially parallel to one of the directions defined by the extension of the exchanger (3), in particular relative to a plane substantially parallel to the principal direction of a flow of air in which the exchanger (3) is located, and in special manner relative to a substantially vertical or substantially horizontal plane. According to the invention, the method comprises the following steps: a) the construction at least of the serpentine or of the complete exchanger in a flat configuration; b) the bending and/or moulding, or deforming of the flat serpentine or of the flat complete exchanger in a way to assume the desired inclinations.

Abstract: This invention relates to a co-tube assembly for a heating and air conditioning system. The co-tube assembly comprises a connector an inner tube and an outer tube. The connector including a first opening, a second opening and a third opening. The inner tube extends through the first opening and the second opening of the connector. The inner tube has a first portion axially outwardly of the first opening of the connector and a second portion axially outwardly of the second opening of the connector. The outer tube is disposed over the first portion of said inner tube and inserted into said first opening of the connector.

Abstract: A multiple spindle bar machine is disclosed including a cylindrical spindle carrier assembly supporting a spaced apart array of spindle bearings. Workpiece holding spindles are rotatably journaled in the spindle bearings. A hollow spindle drive shaft extends through a central opening in the spindle carrier and includes a drive gear pinned to an end of the shaft. The drive gear intermeshes with spindle gears to drive the spindles at a uniform rotational speed. The spindle carrier assembly is rotatably supported by at least one set of tapered roller bearings bearing against an outer peripheral surface of a spindle carrier. The set of roller bearings are disposed in a notched annulus in an inner peripheral surface a headstock upright. Each roller bearing forms an acute included angle between the spindle carrier outer peripheral surface and a surface of the tapered bearing facing the spindle carrier. The set of tapered roller bearing is mechanically preloaded before machining operations commence.

Abstract: A sight flow indicator having a viewing window for monitoring liquid flowing therethrough is disclosed. The flow indicator is configured to disentrain gas and particulate from a portion of the fluid. The flow indicator is also configured to reduce the velocity of fluid flowing therethrough. The portion of the fluid from which gas and particulate has been disentrained is diverted from the main flow stream, past the viewing window. The relatively clean liquid sample flowing past the viewing window lends itself to relatively accurate optical analysis using, compared to the bulk fluid flowing through the flow indicator. The flow indicator is well-suited for use with a spectrometer or other optical analyzer.

Abstract: A cam buckle system has a lever arm which is pivotally connected to a base plate. The lever arm rotates a lock arm with cam teeth into abutment with a strap to lock the strap against movement. The strap also extends through a capture slot on the lever arm so that manual movement of the strap will open or lock the cam buckle as well as tension the strap. The cam buckle can be used for any tension member, but has particular utility to interconnect a pair of wrist straps of a ski pole grip. The straps and cam buckle form an adjustable length loop which can be tightened to form a heel support for the ski grip. A single point attachment at a top of the handle includes a vertical slot and spreader plate to vertically orient and open the pair of straps. This creates a wrist strap adjustment system that can be quickly manipulated using a single gloved hand.

Abstract: A projectile fuze detects transitions between target layers by an electronic antenna radiating laterally into the target material and coupled to a pullable oscillator whose frequency shifts as the target material changes while the projectile penetrates. A frequency shift threshold detector relates the observed frequency shifts to a stored target profile to detonate the projectile after the desired layer penetration.

Abstract: A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such that in the upper half of the discharge tube they always slant downwardly from the surface of the tube, while in the lower half of the discharge tube the edge faces face downwardly. An arrangement of stops and abutments prevents rotation of the valve member to a location where the edge faces could trap lading against the discharge tube. Accordingly, the edge faces are self-emptying.

Abstract: A scalable multiplier architecture for the Galois field GF(2k) is implemented in a programmable circuit. This architecture may be used in an implementation of public-key cryptosystems which use programmable multipliers in large Galois fields. This architecture is also fine grain scalable in both the time and the area (or logic) dimensions.

Abstract: A method of making an evaporator and the resultant evaporator. The resultant evaporator comprises a continuous serpentine tube having an inlet and an outlet. The serpentine tube includes at least one column of parallel tube runs. Each tube run is defined by at least one reverse bend. The column of parallel tube runs has an overall length defined by the distance between the outermost tube runs. The evaporator further comprises a plurality of inner fins attached to the individual tubes. Each inner fin extends between two tube runs defined by opposite ends of a reverse bend. The inner fins have a length less than the overall length the column of tube runs.

Abstract: For simultaneous deformations of multiple surfaces, a constraint called a link constraint is created to link two faces that are to be deformed together. The link constraint consists of a relationship between a constraint curve in each face to be deformed. The selected constraint curve may be any curve, including trimmed curves and part of a boundary curve. As the faces are deformed, the link constraint limits the deformation of the faces by acting as a zipper between the two surfaces along the selected constraint curve. For local deformations within a surface, a hierarchy is created within specific areas, known as patches, of an individual face in a model, ensuring that when a patch in the hierarchy is deformed, the deformation affects patches lower in the hierarchy than that patch, but the deformation does not affect patches higher in the hierarchy.

Abstract: Key escrow is achieved without a key escrow facility. An escrow key pair is generated and stored in the terminal. A key escrow field that includes a traffic key encrypted with the escrow key is provided before encrypted traffic is communicated. When access to the traffic key is authorized, the escrow key is extracted from the terminal and used to decrypt the traffic key. The private portion of the escrow key is covered in the terminal with an escrow key access number. The escrow key access number is preferably generated by the terminal manufacturer with a secret algorithm using the terminal serial number. Alternatively, the escrow key is stored within a user token, rather than the terminal.

Abstract: A fitting assembly for fluid and vapor connection comprising a first tube, a second tube and a ring. The first tube has a male member at the end of the first tube and a radially enlarged upset formed at a distance from the end of the first tube. The second tube has a hollow female body formed at the end of the second tube. The male member is received in the female body. The ring surrounds the female body. The ring has an axial bore with an innermost diameter smaller than the outermost diameter of the female body for deforming the female body radially inward. The innermost diameter of the axial bore is smaller than at least a portion of the upset of the first tube.

Abstract: An apparatus is disclosed for continuous load optimization of wireless communication networks by making use of statistical data about both the communication medium characteristics and the characteristics of messages that users desire to send over the network. The network comprises a network control base station (20) and a plurality of slave stations (22). One or more applications (72, 104) are associated with each station which are used to generate the messages in digital format. Each application is coupled to a protocol stack (88) that defines the required characteristics of the data and changes to the data that occur during the communication process. An interface (90) is coupled to the layers of each protocol stack (88) to allow tuning of the message characteristics to maximize successful transmission with minimum message latency.

Abstract: An interface between a digital communication system and a PSTN establishes a user configurable secure encrypted link to a digital subscriber unit through the digital communication system, and provides clear (unencrypted) voice to telephone sets through the PSTN. The interface includes a security module for encrypting and decrypting information with user specific algorithms and keys, a transcoder for converting modulated voice to digital voice and a modem for modulating and demodulating data and encrypted voice. Accordingly, the wireline interface allows for user specified security over a digital wireless portion of an end-to-end communication channel. The interface also provides for the communication of unencrypted voice followed by secure voice or secure data.

Abstract: A connector for receiving a tube end having at least one radially enlarged upset. The connector comprises a hollow female connector body and a retainer disposed in the connector body. The retainer has an annular inner base ring defining a cylindrical surface to receive the tube end. The retainer further defines compressive members. The base ring has a limit surface facing the compressive members and a chamfer intersecting the limit surface and the cylindrical surface. The compressive members define an inner diameter and a space between the limit surface and the compressive members for securing the radially enlarged upset in the connector body. The inner diameter of the compressive members is at least as large as the diameter of the intersection of the chamfer with the limit surface.

Abstract: An improved roof ridge ventilation system utilizing a mat of randomly-aligned natural fibers which formed into a web by air-laying on a polyester mesh and bonded with a heat-cured latex bonding agent. The natural fiber mat provides improved airflow while excluding water, dust and pests such as insects and rodents and is more economical that competing materials. The mat is conveniently manufactured in rolls for ease of transport and installation.