Westinghouse Electric Corporation

Ferrari Importing Company

Other

Ball Hopper Products

Harry M Ferrari

John F Wilson

John M Shallenberger

Thomas S Snyder

Matthew F Ferrari

Raymond P Harrington

Robert K Gjertsen

John F Jackovitz

Elwyn Roberts

Harry W Ingram

Edmund E DeMario

Ronald H Carr

Raymond F Boyle

Walter J Dollard

Fred D Kingsbury, Jr

Warren L Mauterer

Mathew F Ferrari

Robert N Stanutz

Stephen M Ferlan

Michael R Swartz

Non-slip grip wrap for use on handles of hand tools

Shocking absorbing grip wrap for use on handles of hand tools

The invention relates to strings for stringed musical instruments, fishing equipment, and sports racquets which are exposed to a suitable solvent or suitable elasticizer compatible with the materials contained in the fibers, bonding resins, or coating resins in the strings, such that partial dissolution of the material in the suitable solvent occurs or absorption of the suitable elasticizer occurs so as to increase the elasticity, increase the flexibility, increase the ductility, or increase the resiliency of the strings.

Method for enhancing the properties of a string used in a stringing

A device can be provided in different embodiments for holding different tensions in different length string sections of a sports racquet stringing bed. In one embodiment, a strip of material is applied on the periphery of the head portion of the racquet and is compressed under the string portions extending between pairs of adjacent stringing holes. In another embodiment, the tension holding device is a plurality of cylindrical bands of compressible material which fit about the string portions and within the grommets of the racquet. In both embodiments, the material is compressed by the string portion to generate sufficient frictional force therebetween to prevent slippage of the string portion relative thereto and thereby hold the different length string sections under the predetermined amount of differential tension. Several embodiments of a variable tension applying device can be mounted across the head portion of the sports racquet to provide displaced locations on a beam across which the longitudinal string sections extend so as to divert them into substantially equal lengths of string sections. After substantially the same amount of tension is applied to each of the equal length string sections, the string sections are released from the tension applying device and then the string sections assume their original different lengths across the open region of the head portion of the racquet with each string section having a differential tension which thereby provides a uniform stiffness to the stringing bed made up by the different length string sections.

Device for facilitating application of variable tension to sports

A sports racket has a handle and a multi-frame. The multi-frame includes a primary frame defining a throat connected to the handle and a hoop-shaped head connected to the throat and encompassing an open region. The head has a plurality of stringing holes defined therethrough for attaching stringing to the head and across the open region. The multi-frame also includes supplementary frames and ribs. The supplementary frames are disposed in spaced relation and adjacent to opposite sides of the primary frame. The supplementary frames are coextensive with all or a portion of the primary frame head, plus all or a portion of the primary frame throat. The ribs are spaced from one another and extend between and rigidly interconnect the supplementary frames with coextensive portions of the primary frame. The ribs and supplementary frames serve to increase the stiffness of the primary frame, reducing axial and torsional deflections thereof upon striking a ball by the stringing across the open region of the head. The multi-frame further includes supplementary bracing interconnecting portions of the supplementary frames alone or with the primary frame in the region of the throat thereof.

Multi-frame racket

A spectral shift-producing subassembly is composed of a plurality of sealed empty water displacement rodlets incorporating a spectral shift-producing capability. Each of the rodlets includes an elongated tube sealed at its opposite ends and having an axially-extending annular wall section of reduced thickness compared to the thickness of the wall of the remainder of the rodlet. The respective reduced thicknesses of the axial wall sections of the rodlets can be varied to adapt the rodlets to rupture at different times and permit water to enter the rodlets to produce an increase in the water/fuel ratio and thereby an increase in reactivity. The rodlets can also have different levels of pressurization to initiate rupture at different times.

Spectral shift-producing subassembly for use in a nuclear fuel assembly

The invention is both a system and method for continuously separating heavier from lighter isotopes of a particular element, such as zirconium. The system comprises a housing, a column assembly rotatably mounted with respect to the housing which includes a plurality of vertically oriented separation cells arranged in a circle, each of which contains a packing material, both a feed electrolyte source and a barren electrolyte source, each of which has an outlet mounted in the housing for continuously introducing either a feed electrolyte or a barren electrolyte into each of the cells as they rotate past the outlets, and upper and lower electrodes disposed over the upper and lower ends of the separation cells for inducing the electromigration of the lighter zirconium ions toward the lower ends of each of the separation cells. A drain assembly disposed beneath the column assembly continuously collects isotopic enriched electrolyte from the bottom ends of the separation cells. The speed of rotation of the column assembly is coordinated with the rate of eluant flow through the cells so that the same segments of the annular tray of the drain assembly continuously collect eluant enriched in a particular type of zirconium isotope.

System and method for continuous separation of isotopes

A simple, low temperature process for separating uranium isotopes and producing substantially pure uranium isotope fractions from a crude uranium isotope-containing aqueous feed stock is provided. A uranium isotope-containing solution is fed to an anion exchange resin in a continuously rotating annular chromatograph as a suitable eluant is also simultaneously fed to the rotating chromatograph. A Uranium 235, a Uranium 238 and an impurity fraction are recovered from the chromatograph. The substantially pure uranium 235 and uranium 238 fractions may be subjected to further processing, preferably precipitation with ammonium hydroxide to produce ammonium diuranate, and then calcining to form uranium oxide rich in the desired isotope.

Uranium isotope separation by continuous anion exchange chromatography

A nuclear fuel assembly having an array of longitudinally extending fuel rods and axially spaced transverse grids with cells receiving the fuel rods therethrough employs anti-fretting protective devices for protecting lower end portions of tubular claddings of the fuel rods from damage-inducing contact with debris entrained in upward flow of coolant through the fuel assembly. Each device is in the form of a hollow sleeve disposed about and extending coextensive with the lower end portion of one fuel rod cladding. The sleeve has an upper portion which extends through one grid cell between lower and upper ends thereof, and a lower portion which extends below the grid cell from the lower end thereof to a bottom end of the fuel rod cladding spaced below the grid cell lower end.

Protective device for lower end portion of a nuclear fuel rod cladding

A device for dampening vibrations in a sports racket having a strung striking surface includes an elongated elastic flexible hollow tubular member disposable in interweaved relation with a plurality of strings on the racket striking surface, and inelastic end members on the opposite ends of the tubular member for securing the tubular member in a stretched condition between its opposite ends to a pair of spaced strings and for retaining the member in the interweaved relation with the plurality of strings. The hollow tubular member defines a central bore having opposite openings at the opposite ends of the member. Each inelastic end member includes an inner element having a stem portion inserted within one opposite end opening for attachment in frictional interfitting relation with one end of the elastic tubular member, and an outer hook-like element for anchoring the one opposite end of the elastic member to one of the pair of strings. The outer hook-like element is rigidly connected to a cover portion of the inner element which engages an outer end surface of the tubular member end when the stem portion is inserted into the one tubular member end openings. A viscoelastic energy damping medium is encapsulated within the central bore of the elastic hollow tubular member by the end members.

Vibration dampening device for a sports racket having a strung striking

A racket frame, such as for a tennis racket, has a head portion, a handle portion and a throat portion extending between and interconnecting the head and handle portions. The head portion encompasses an open region and has a first plurality of stringing holes for attaching stringing to the head portion and across the open region. The throat portion is in the form of a pair of legs in a generally V-shaped configuration. The frame also includes a second plurality of non-stringing holes defined in one or both of the head and throat portions for forming voids in the material thereof to reduce the weight and tailor the stiffness thereof in a manner which reduces axial and torsional deflections of the head portion upon striking a ball by the stringing across the open region of the head portion.

Racket frame having holes for tailoring frame stiffness

A collapsible ball retriever and storage unit is in the form of a receptacle composed of a plurality of side grills pivotally hinged one to the next, and a top gate and a bottom grate being pivotally hinged to respective ones of the side grills. The side grills are pivotable relative to one another to convert them between erected and collapsed positions, whereas the top gate and bottom grate are pivotable relative to the side grills to convert the top gate and bottom grate between closed and retracted opened positions. The gate and grate are latchable to others of the side grills disposed opposite to the ones thereof to which the gate and grate are respectively hinged. The bottom grate is adapted to rigidly retain the side grills in their erected position when the bottom grate is disposed in the closed position. Further, the bottom grate has members defining ball passages therethrough which adapts the receptacle for retrieving and storing balls when the side grills are in the erected position and the bottom grate is in the closed position.

Collapsible ball retriever and storage unit

Nuclear fuel elements are provided that are resistant to pellet-clad interaction. The closed end nuclear fuel elements comprise a zirconium or zirconium alloy tube that has a layer of lubricant, preferably graphite, on the inner surface thereof, and enriched uranium dioxide pellets that have a coating on the outer surface thereof of a thickness sufficient to absorb fission products. The coating on the pellets may be a burnable absorber or a material that has a relatively low neutron absorption compared to a burnable absorber. The combination of the layer on the tube and the coating on the pellets reduces both the stress level and the concentration of damaging fission products that would contact and react with the layer of lubricant about the inside surface of the tubular cladding and thus reduces conditions for pellet-clad interaction.

Growing community of inventors

Pittsburgh, PA, United States of America

Harry M Ferrari