Abstract: This invention relates to a seal for an internal combustion engine injector, of the type intended to produce a seal between the outside wall of the injector or of an injector support facing the wall of the housing provided for the injector in the cylinder head of the engine.The seal comprises a cylindrical reinforcement (4), of approximately L-shaped section, whose short leg (6) defines an annular bearing surface for resting against an end bearing surface (14) of the injector or of the injector support (3), and on whose long leg (5) an elastomer packing (7) is made to adhere that has an annular inside sealing bearing surface (8) able to assure a sealing contact with the peripheral surface of the injector or the injector support, and at least one sealing lip (9) projecting outward, preferably near the free end of the long leg of the reinforcement, able to assure a sealing contact with the cylindrical wall of housing (2) of the injector in cylinder head (1).

Abstract: The present invention relates to an improved seal assembly for sealing between the interior sealing surface of a well housing and the exterior sealing surface of a hanger landed within the well housing and includes a seal body having a pair of outer lips diverging outwardly for sealing against the housing interior sealing surface and an interior series of annular ridges which have a diameter smaller than the outer diameter of the hanger exterior sealing surface, an upper energizer and a lower energizer for coacting with said lips to move the lips into sealing position and to store the energy of setting to ensure sealing engagement of the lips. The shape of the sealing lips is such that they each provide a sealing surface and a ridge having a greater outer diameter than the sealing surface so that when the seal assembly is being run into the housing any scratches resulting from the engagement of the seal with the interior of the housing is on the ridges and not on the sealing surfaces.

Abstract: Opposed ends of two tubular members are relatively displaced toward opposite sides of an annular seal to deform the seal and reduce the seal bore into approximate or actual alignment with the tubular members bore.

Abstract: A molded oil pan gasket having an integrally formed pair of elastomeric side sections and pair of elastomeric end sections and a rail in each of the side sections. Each rail is an elongated rigid thermoplastic member having a generally flat main body of a first thickness and a plurality of integrally formed, longitudinally spaced stops. Each stop provides a fastener opening. The stops are of a height substantially greater than the first thickness, but less than the thickness of the associated side section. A plurality of apertures are formed in each rail for integrating the rail and the elastomer of the associated side section. A series of abutments and stiffening ribs are also disclosed.

Abstract: A noncontact mechanical seal has a seal ring which includes a sealing face portion formed by ventilative porous materials and a ventilating portion to pass a gas of a high pressure side to the sealing face portion from the back side of said sealing face portion. The sealing face portion is preferably a porous ring independently formed of said seal ring and mounted on the seal ring providing a space at the back side thereof. The seal ring preferably is provided with a small diameter thin portion at the portion forming the bottom of the space.

Abstract: In a preferred embodiment, a compound gasket including a relatively nonresilient base member having an opening therethrough and a relatively resilient member disposed about the opening. The resilient member has a thickness somewhat greater than at least a portion of the base member so that mating surfaces between which the gasket is placed can be drawn together to contact the thickened portion of the base member so that the resilient member is compressed to a precise degree. The resilient member is freely movable with respect to the nonresilient member to better accommodate differential expansion and nonuniformities in the mating surfaces.

Abstract: This invention relates to a computer servicing cart which includes a structural frame for use in defining a housing for the cart and for use in carrying and rollably supporting said housing. The frame includes a base, uprights, and angular struts connecting the uprights and base. A cross member and a handle are secured to the uprights. Rolling means are secured to the base. Rearward rolling means are provided and includes an angularly disposed mount system for positioning larger rear wheels rearwardly for ease of rolling. The housing is formed about the frame and includes a forward section and a rearward section. The forward section is provided for carrying servicing items and the rearward section carries a vacuum tank, gas cylinder and a hose reel. The rearward section includes a depressed well section in the center thereof for receiving the hose reel in a lowered position. The top of the cart includes a foldable top for opening onto the handle and providing a work surface.

Abstract: A pig which may be propelled by fluid flow through a pipeline includes a cupped or hollow spherical head having an inside and an outside. The head has an opening for facing upstream and receiving fluid flow in the pipeline and has an outside for facing downstream and for contacting the inside walls of the pipeline. An elongate tail has a first end connected to the inside of the head and a second end extending out of the opening. The tail is of smaller diameter than the opening and has a length greater than about 1.5 times the largest internal diameter of the pipeline. A first fastener is provided on the outside of the head and a second fastener is provided on the second end of the tail. The fasteners are used to connect multiple pigs end-to-end and to attach objects, such as pipeline cleaning and maintenance equipment, to the pig.

Abstract: A double directional gasket which, when contained within a partial enclosure, forms a double directional seal under low sealing forces due to the toggle like action of the relatively thin central portion of the gasket loading the seating area generally 90 degrees to the pressure loading on the relatively thin central portion.

Abstract: The present invention relates to an improved seal assembly for sealing between the interior sealing surface of a well housing and the exterior sealing surface of a hanger landed within the well housing and includes a seal body having a pair of outer lips diverging outwardly for sealing against the housing interior sealing surface and an interior series of annular ridges which have a diameter smaller than the outer diameter of the hanger exterior sealing surface, an upper energizer and a lower energizer for coacting with said lips to move the lips into sealing position and to store the energy of setting to ensure sealing engagement of the lips. In some forms of the invention the energy is stored by virture of the lips being of a relatively low yield stength material as compared to the energizers which have a higher yield strength. Also, structure is provided in some of the forms of the invention to store both radial and axial lip loading forces.

Abstract: Apparatus for restricting magnetic oil to a desired location within a FFFB comprising selectably locatable stopper apparatus having a first location near the FFFB for enabling a vacuum to be produced and for restricting the magnetic oil within the FFFB during filling of the FFFB with the magnetic oil and a second location away from the FFFB when filling is not occurring and apparatus for moving the selectably locatable stopper apparatus between the first location and the second location.

Abstract: An annular sealing apparatus comprised of at least a pair of axially stacked thin diaphragm members is provided. Each of diaphragm members includes a planar array of radially extending fingers separated by gaps. The fingers have a logarithmic curvature as they extend from their innermost end to their outermost end. The fingers also have a constant thickness along their length and also have a foot integral with their innermost end. This foot is wider than the fingers and thereby provides a larger wear surface. The pair of diaphragm members are disposed so that the fingers of each block the gaps of the other.

Abstract: A mixing tank for a liquid is disclosed with a built-in agitator having a shaft extending through an upper wall of the tank for engagement with a drive motor module. For shipping purposes, the shaft opening is sealed against leakage of the liquid by a seal ring which is compressed by a seal clamp between a collar fixedly mounted on the shaft and a fixed member on the upper wall of the tank. When the agitator is operated at a work station to mix the liquid, the seal clamp is released and the agitator shaft is driven by the drive motor module. In order to prevent liquid leakage around the shaft during shaft rotation, a rotor is mounted on the shaft inside the tank and the liquid which migrates up the shaft to the rotor is thrown outwardly thereby.

Abstract: An airtight, flexible joint is disclosed for the interfacing of two pressure vessels such as between the Space Station docking tunnel and the Space Shuttle Orbiter's bulkhead adapter. The joint provides for flexibility while still retaining a structural link between the two vessels required due to the loading created by the internal/external pressure differential. The joint design provides for limiting the axial load carried across the joint to a specific value, a function required in the Orbiter/Station tunnel interface. The flex joint comprises a floating structural segment which is permanently attached to one of the pressure vessels through the use of an inflatable seal. The geometric configuration of the joint causes the tension between the vessels created by the internal gas pressure to compress the inflatable seal.

Abstract: A sealing arrangement is provided with overpressure relief. In the preferred embodiment, the sealing arrangement includes a sealing member that is positioned between two housing portions or the like and that is acted upon by the pressure within the housing. A force-responsive retaining arrangement maintains the sealing member in a predetermined location. Upon the occurrence of overpressures exceeding a predetermined value, the sealing member exerts sufficient force on the force-responsive retaining arrangement so as to cause appropriate displacement of the sealing member to permit the venting of the housing.

Abstract: A seal for inhibiting the flowing of a gas or liquid in the stream along a shaft within a machine housing, the shaft having an axis of rotation in a predetermined radius, the seal comprising a seal housing attached to the machine housing, and a plurality of fingers extending axially upstream from the seal housing the fingers annularly surrounding the shaft and circumferentially spaced from each other, the fingers extending to contract the shaft when the shaft is not rotating, and the fingers curved in the same direction as the shaft, the radius of curvature of the fingers being greater than the radius of curvature of the shaft. The fingers may be angled away from the direction of rotation, have pockets in the radially inner surface of the fingers, and/or have a plurality of strips extending from the housing radially outside of the fingers and annularly surrounding the shaft, the strips covering the circumferential space between the fingers.

Abstract: A double face seal for coke ovens comprising charging and venting tubes having flanges; charging and venting ports having top surfaces; and sealing means attached to the flanges for engaging and sealing the top surfaces during charging and venting of coke ovens.

Abstract: A cleaning center for use in a home, motor vehicle or the like. The cleaning center is constructed with one or more outer caddy units which may be locked together and covered and locked with a lid. The caddy units are designed to store cleaning supplies and to prevent access to the supplies by small children. Each caddy unit has an internal cleaning device positioned in the center thereof with the home caddy having a vacuum cleaner unit and the auto caddy having a pail. The caddies as well as the internal cleaning devices are interchangeable and can be used separately and in various combinations.

Abstract: A gasket secured to the cover frame of an underground vault. The vault is of the type having a precast underground portion and an upper opening including a steel cover frame with a horizontal, flat surface to which the gasket is adhered. The gasket has a plurality of ridges along its inner edge, a flat center portion wherein the bolt holes are located and an outer ridge adjacent the bolt holes but separated from the outer edge.

Abstract: Buffer seal rings are described, and gland seals using them. The ring seats in an axially oversize housing groove in the gland bore in order to protect a main rod seal from pressure shocks. To avoid the possibly damaging effects of pressure trapping between the rod seal and buffer seal, the buffer seal has a sealing face on the rod seal side which includes a recessed driving surface e.g. an annular channel, lying inside an annular sealing portion. The driving surface communicates with the fluid in the bore through communication recesses, e.g. slots in an inner support rib, so that excess pressure on that side can drive the ring axially out of sealing and allow the pressure to be relieved through axially-extending pressure release grooves around the edge and oppostie face of the ring.