Abstract: A bearing assembly having inner and outer races with anti-friction elements therebetween and a grease seal at least at one end is provided with a shield between the races for shielding the races, anti-friction elements and grease seal from the entry of dirt, dust and other contaminants.
Abstract: An improved mechanical seal assembly for separating high pressure fluid from lower pressure fluid including a vented Quad-ring in a non-rotatable seal ring for providing lower sliding friction and improved, more consistent pressure deflection of the non-rotating seal face, an improved means for positioning a pressure breakdown means located in the high pressure fluid for controlling the pressure differential between the high pressure fluid and the low pressure fluid by a predetermined amount and means for improving the circulation of clean fluid around the outer periphery of the seal assembly under conditions where the fluid being pumped is contaminated.
Abstract: A method of treating a surface of a machine element to permit the outer layers thereof to freely expand when repeatedly subjected to sudden temperature variations without thermal stressing the inner layers thereof.
Abstract: An improved mechanical seal using hard non-weldable seal rings in which the seal ring is supported by a seal ring flange and in which a GRAFOIL gasket is positioned in an annular recess between the seal ring and the flange; the seal ring being held in the flange by means of a retainer ring welded to the flange, thereby avoiding the use of interference fits and/or lap fits between the flange and the seal ring.
Abstract: In a fluid handling appartus comprising a multi-stage mechanical seal assembly, an additional mechanical seal assembly to maintain a substantially constant exit pressure of leakage from the last stage of the multi-stage mechanical seal assembly, and a novel driving arrangement between the motor and the fluid machine.
Abstract: A pump having a heat exchanger including a rotating baffle sleeve secured to the pump shaft. A seal baffle on the rotating baffle sleeve extends over the pump seal assembly cartridge. A cooling cylinder containing circulating component cooling water is suspended within the rotating baffle sleeve and defines a flow passageway therein for cooling heated product water, before the product water contacts the shaft seal. A seal injector distributor ring uniformly distributes seal injection water to the seal. A thermal shield in the heat exchanger reduces thermal stresses in the heat exchanger. A slotted or grooved keyway spacer ring facilitates replacement and alignment of a hydrostatic bearing.
Abstract: A chain constructed of alternating groups of fine blanked articulating links and sets of guide and connecting links. The sets and groups of links are joined by pivot members, journaled in smooth walled openings in the articulating links and press-fit into the openings in the guide and connecting links. The articulating links are of the silent variety with a pair of toes spaced by a crotch with the defining flanks of the toes being adaptable for drivingly contacting the teeth of sprockets. To provide the smooth walled openings in the articulating links, these links are fine blanked as opposed to being conventionally blanked.
Abstract: An improved rocker joint for a chain in which each pin of a pair of pins is substantially identical in cross-sectional shape. Each pin has a front and working surface defined by a first radius and a back surface defined by a single and smaller radius. Planar surfaces diverging from front to back join the front and back surfaces of the pins. The links are provided with openings to receive the pins, each opening being generally circular and having inwardly directed lugs, the lugs defining a first arc and a second and larger arc. One of the pins of the rocker joint is held against rotation in some of the links with its back surface contacting the smaller arc and also the walls of the defining lugs.
Abstract: A separator for the balls of a ball bearing assembly, especially of the land riding variety which is constructed of two like parts joined together by ultrasonic welding. The separator is provided with generally cylindrical ball receiving pockets. Skis are provided on the circumference of the separator which ride on the lands of the bearing. Each part of the separator is formed with alternating studs and bores, which, when two parts are assembled, the bores receive the opposing studs. The structure is so formed to insure the flow of lubricant to the raceways.
Abstract: A carton having a bottom, end and side walls, and a two part top, the top having slots receiving locking tabs on the side walls for maintaining an interlocking slotted relationship therebetween. The bottom, side and end walls and top parts are integral, formed of one piece of material with the top parts and end walls wider than the width of the bottom, so as to overlie and be supported by the side walls.
Abstract: An improved lubricating system for mechanical seal assemblies in which baffle means are positioned closely adjacent to the seal faces forming restricted passages for the flow of lubricating fluid under pressure to the opposing seal faces especially when the pressure of the product fluid is relatively low.
October 15, 1987
Date of Patent:
February 14, 1989
BKI/IP International, Inc.
Larry A. Hufford, Robert S. Wentworth, deceased, by Benning Wentworth, executor
Abstract: A drum locking device which comprises a telescoping locking bar means, one end of which fits into locking relationship with one of a pair of lugged closure members and the other end of which fits over the other of said pair of lugged closure members, and a lock securing the device to prevent removal of the contents of the drum.
Abstract: A pump having a heat exchanger including a rotating baffle sleeve secured to the pump shaft. A seal baffle on the rotating baffle sleeve extends over the pump seal assembly cartridge. A cooling cylinder containing circulating component cooling water is suspended within the rotating baffle sleeve and defines a flow passageway therein for cooling heated product water, before the product water contacts the shaft seal. A seal injector distributor ring uniformly distributes seal injection water to the seal. A thermal shield in the heat exchanger reduces thermal stresses in the heat exchanger. A slotted keyway spacer ring facilitates replacement and alignment of a hydrostatic bearing.
Abstract: A mechanical seal testing mechanism having a rotary shaft assembly about which a series of seal assemblies are arranged for simulated testing. The eccentricity of the shaft assembly may be varied while the tester is operating by a fluidically responsive control mechanism such that varying simulated conditions may be imparted to the seal assemblies being tested.
Abstract: A retaining clip, which is essentially a C-shaped member, is used to retain the pivot means or joint members of a chain or chain-belt in assembled relationship. The clip spans the chain, and the clip ends engage the pivot means and/or the side links of the chain. The clips can be fabricated from spring steel, spring wire or a plastic.
Abstract: A veterinary stapling mechanism which comprises an implement having a staple delivery means and a staple crimping mechanism, the latter comprising a pantograph device for crimping the ends of a staple over a crimp plate which is then removed from the stapling location.
Abstract: A mechanical seal assembly, especially for use in a slurry pump in which the seal rings are resiliently urged into sealing relation by at least one elastomeric assembly loaded in shear. The preferred embodiment is constructed as a carriage for installation and removal as a unit but it may also be constructed for installation in situ.