Abstract: The present invention relates to a shearing system. The shearing system includes a die assembly having linear bearings and guide rails for guiding movement of the upper die shoe. Gas springs return the die shoe to the open position.

Abstract: A link assembly for a vehicle control system comprising a spacer molded of glass-filled nylon and a socket housing mounted on each end of the spacer, both socket housings also being molded of glass-filled nylon. Each housing comprises a male socket component and a female socket component which are mirror-image, identical to each other except for complementary male locator protrusions and female locator depressions formed in opposing relationship on mating faces of respective components. The components are ultrasonically welded together to capture opposite ends of the spacer and the ball ends of respective ball studs.

Abstract: A plastic barricade assembly including two leg and panel units pivotally interconnected. Each leg and panel unit comprises first and second leg members and a plurality of panel members, the members being separately blow molded. The first leg members of each leg and panel unit are identical to each other and, at the same time, different than the second leg members of each leg and panel unit which are, in turn, identical to each other. Each leg and panel unit is assembled by bolting a first and second leg member together with a plurality of panel members. The leg and panel members of each unit are bolted together in interlocking relationship.

Abstract: A timber harvesting machine including a chassis supported by endless tracks. A platform is mounted on the chassis. A platform is rotatable on the turntable in an annular bearing race on the turntable. A boom is mounted on the platform and includes a main boom mounting pin which is pivoted on one side of the axis of rotation of the platform. A boom actuating cylinder has a mounting pin which is mounted on the other side of the axis of rotation and directly over the annular bearing race regardless of the rotational position of said platform relative to said turntable.

Abstract: An improvement in an internal bolster for a corporeal access tube assembly wherein a retention balloon is preformed of relatively thick silicone rubber film. The balloon includes parallel front and rear sidewalls connected by a semi-circular treadwall, the front sidewall having a front retention surface thereon with a radial width equal to the radius of the treadwall. Annular sleeves at the inner periphery of each sidewall are sealed to the outer surface of a tube segment. Each sleeve extends forwardly of its corresponding sidewall.

Abstract: A system for bringing the joint edges of first and second sheet metal components into butting relationship. The components are clamped in opposing clamping assemblies with one of the assemblies being movable toward and away from the other. A fluid motor is mounted on one clamping assembly and a piston extending therefrom is connected to the other clamping assembly through a pair of expandable bladders. By sequentially introducing high and low pressure air to first one bladder and then the other, the movable clamping assembly is caused to move one component toward the other while accommodating any initial misalignment between the edges.

Abstract: A scroll-type fluid displacement device has two interfitting spiral-shaped scroll members which have predetermined geometric configurations. The novel design provides a flow diverter mechanism which directs intake fluid flow to break incompressible liquid accumulated into fine droplets which can be evenly engulfed by two suction pockets formed by the scrolls. This invention also provides a multiple groove tip seal mechanism for radially sealing off the compression pockets. This invention further provides a semi-radial compliant mechanism which maintains the radial compliant function of the orbiting scroll and at the same time transfers the load caused by the centrifugal force of the orbiting scroll from the scroll elements to the crank shaft.

Abstract: A system for automatically preventing gear shift operation in a timber harvesting tractor when the tractor is moving. The system includes a drive train powered by a transmission. The drive train includes a transfer case which is shifted by the operator of the tractor through manipulation of an electrical control circuit. The electrical control circuit is rendered ineffective to shift the transfer case when the drive train is being driven by the transmission and the tractor is moving.

Abstract: A corporeal access assembly including a tube segment having a body formed of silicone rubber and containing a coil spring embedded therein. The silicone rubber has a low durometer hardness of about 35 on the A scale. The tube segments have relatively large diameter liquid flow passages therethrough for all French sizes, from 12Fr to 24Fr. The body wall thickness for all French sizes remains the same. An air lumen is provided in one embodiment of the tube segment, with a set connector attached which has a removable plug for blocking or opening an air passage to a retention balloon.

Abstract: A scroll-type fluid displacement apparatus has two interfitting spiral-shaped scroll members which have predetermined geometric configurations. The novel design provides an oil-gas separation and circulation system in which the oil, through a reservoir in the close proximity of the thrust bearing and metering orifices network, is properly and promptly directed to the scroll compression chamber, Oldham ring and bearings to provide lubrication and cooling. This invention also provides a notch mechanism at the tip of the orbiting scroll member during operation to avoid the orbiting scroll wrap from completely blocking the oil injection ports of small size on the fixed scroll base. This invention further relates to a gas intake system which directs gas from the oil-gas separator/sump to close the intake control valve and maintain low power consumption during unload mode.

Abstract: A building complex for disposing of toxic or otherwise hazardous waste materials. The complex comprises heptagonal shaped center core structure and five rhomboid shaped wing structures dedicated to waste disposal. The walls, floors and ceilings of the wings include a layer or layers of a composite material comprising a thermosetting or thermoplastic resin, high modulus carbon fibers or the like and borosilicate glass particulate.

Abstract: A retention bolster for a flexible tube segment in a corporeal access tube assembly. The bolster includes a body molded in one piece of silicone rubber and cut into two legs along a portion of its length. One of the legs has a collar formed on its free end, with a lip under which the free end of the other leg nestles. To hold the legs together and grip a tube segment between them, an O-ring is rolled over the collar into a depression encircling both legs without contracting into the cut between the legs.

Abstract: An air cleaning system for a vehicle includes an inertial separator for filtering contaminated air, which then enters a vehicle cooling system positioned to receive the filtered air exiting from the inertial separator, and a clean air diverter positioned to receive a portion of the filtered air and to direct the filtered air to an engine and/or cab. The system may also include a pulley arrangement to increase the speed of a second inertial separator which further filters the air directed to the engine and/or cab.

Abstract: A tissue web cleaner and method of cleaning tissue webs in a rewinder utilize the Coanda effect to produce an improved tissue product. The Coanda effect web cleaner utilizes the smooth flow of a thin layer of air to scrub off dust and lint embedded and entangled in the web surface while stabilizing the web in its travel. Two of these Coanda effect web cleaners arranged on opposite sides of a multiple-ply web in a rewinder are effective when operated according to the method of the invention to produce a rewound tissue with an unexpectedly low loose dust and lint count on its surfaces.

Abstract: A system and method for laser welding. The joint edges of two adjacent sheet metal components are brought into butting relationship on a weld line. A welding head is moved along the weld line while directing a laser welding beam downwardly from its optics to the weld line where it creates a weld joint. In its path downwardly to a focal point at the weld line the beam passes through a stream of air directed transversely of the beam, a shield plate below the stream of air and above the weld line, and a nitrogen filled zone below the shield and above the weld joint.

Abstract: A system for clamping a sheet metal component in preparation for welding or the like. A clamping assembly includes a horizontally elongated lower clamping platen and a horizontally elongated upper clamping platen positioned over said lower platen. The upper platen includes an elongated carrier and a series of clamping pads, separately mounted on the carrier for movement toward and away from the carrier. A pair of coil springs between each pad and the carrier bias the pad away from the carrier. The pads are mounted for progressively further movement away from the carrier as they are displaced further from the centerline of the carrier.

Abstract: A system for gauging the relative positions of two opposing joint edges on sheet metal components prior to welding. The system comprises a gauging assembly including two pairs of gauging pins which are movable between a retracted position and a gauging position. Each pair of pins defines a separate edge contact line. When each joint edge has contacted both pins in a respective pair, electrical circuitry indicates as much and the components are clamped in this relationship.

Abstract: A retention balloon for a corporeal access tube assembly which includes a tube segment. The balloon is secured to the tube segment around a portion of the segment. The balloon is preformed in its expanded shape. When in normal retention operation it contains air trapped but under ambient pressure whereby its walls are not stretched to any noticeable extent.

Abstract: A ternary composite with thermal stability of up to at least 200.degree. C. Is formed using a thermally stable matrix resin, high tensile fibers, and borosilicate or sodium tetra borate glass particulates. The composite has stability to acids, toxic wastes and may be formed into sheets, shapes, tubes, containers, flooring materials and the like for use in aerospace, defense, automotive, industrial, nuclear containment or simply building material applications.

Abstract: A corporeal access tube assembly including a tube segment in which a coil spring is embedded along a portion of the segment. A retention balloon is secured to the tube segment around a portion which does not contain the coil spring. The balloon is inflated into a preformed shape when in operation but its walls are not stretched to any noticeable extent. A bolus on one end of the tube segment includes a stylet pocket in which a stylet is inserted to stretch the balloon axially and decrease its size radially for purposes of insertion and removal of the tube assembly.