Patents Represented by Attorney Robert A. Felsman
  • Patent number: 5584196
    Abstract: A method of knitting on a full fashion flat bed knitting machine where a face yarn and a plated yarn are used in combination. The method includes knitting an inelastic yarn on the face of the fabric and knitting an elastic yarn on the back of the fabric in plated relationship. Two separate yarn carriers are used to deliver the yarn to the needles where the carries are offset from each other by at least one needle width.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: December 17, 1996
    Assignee: CV Apparel Limited
    Inventors: Richard Taylor, John Hubbard, Derek Else, David Patel
  • Patent number: 5581858
    Abstract: There is disclosed a method for making a textile strand comprising passing two filamentous strands together through a jet device which commingles filaments of the two strands and then subjecting the thus commingled strands to a drawing step in which at least one of the strands is drawn to a stable drawn state.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: December 10, 1996
    Assignee: J & P Coats, Ltd.
    Inventors: William W. Curran, John Aitken
  • Patent number: 5575493
    Abstract: A trailer with wheels located near its rearward end and a connecting arm extending from a mid-region of the forward end of the trailer. The connecting arm includes a gooseneck with a ball receptacle to connect with a ball protruding upwardly from the truck bed. A shroud is connected to the forward end of the trailer beneath the connecting arm and a powered hydraulic cylinder is carried inside the shroud and includes a rod extending downwardly to raise and lower the front of the trailer. A stabilizer arm terminating in a foot portion is carried by the shroud to extend downwardly and co-extensively with the rod to protect the hydraulic cylinder and rod from loading other than by the weight of the trailer and its load.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: November 19, 1996
    Inventors: Charlie E. Schwartz, John R. Kyburz
  • Patent number: 5574469
    Abstract: A method and system are disclosed for improved collision avoidance of two locomotives by periodically receiving on each locomotive digitally encoded data to determine its geographical location, speed and direction of travel by means of an onboard global positioning system receiver. A first data frame including this data is created on each locomotive. Each locomotive periodically broadcasts to the other digitally encoded signals containing the first data frame. A second data frame is created on each locomotive from the received digital signals from the other locomotive containing the second locomotive's geographical location, speed and direction of travel and locomotive identification. The data frames are processed and displayed onboard each locomotive to determine if the other is a collision candidate. If so, collision avoidance procedures are automatically initiated, including initiation of aural and visual alarms at a first selected distance and the reduction of speed at a second selected, closer distance.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: November 12, 1996
    Assignee: Burlington Northern Railroad Company
    Inventor: George C. C. Hsu
  • Patent number: 5549595
    Abstract: A trocar assembly is disclosed for use in inserting a laparoscopic instrument into the abdominal cavity during surgery and includes a cylindrical member activated by intermeshing gears to expand a cylindrical member having a normally retracted outer diameter when the trocar assembly is within the abdominal cavity, to resist withdrawing movement of the assembly from the abdominal cavity.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: August 27, 1996
    Assignee: Dexide, Inc.
    Inventor: Michael W. Freitas
  • Patent number: 5542480
    Abstract: A longitudinally slotted carrier having one end adapted for mounting on a tubing string, the carrier being nonplanar, with a slotted configuration and interior dimensions to enable capsule charge orientation at selected phases between 0 and 360 degrees. The carrier has a frangible seam that fractures upon detonation to form two retrievable strips, each supported by the tubing string for retrieval. The seam is a narrow bridge, formed by slotting the carrier, with a cross sectional area that shatters upon detonation of the shaped charges. The remaining cross sectional area of each strip is sufficient to assure retrieval after detonation. The strips are nonplanar, arcuate or a segment of a circle in cross section. When the capsule charges are arrayed around many phases, by attaching both from and rear portions of the capsule charges to the unslotted regions of the carrier, plural primer cords are used for detonation.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: August 6, 1996
    Assignee: Owen Oil Tools, Inc.
    Inventors: Harrold D. Owen, David S. Wesson
  • Patent number: 5542485
    Abstract: An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter has a cutter shell surface including a gage surface and a heel surface. A plurality of cutting elements inserts are arranged in generally circumferential rows on the cutter. At least one chisel-shaped cutting element is secured to the gage surface. The chisel-shaped cutting element has a pair of surfaces converging to define a circumferential crest and is tilted toward the heel surface such that a line drawn through the center of the cutting element and its crest defines an acute angle of between about 15 and 75 degrees with the gage surface of the cutter.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: August 6, 1996
    Assignee: Baker Hughes Incorporated
    Inventors: Rudolf C. O. Pessier, Danny E. Scott, Robert E. Grimes, Matthew R. Isbell
  • Patent number: 5520257
    Abstract: A shaft boring bit has a bit body with at least one saddle member secured to the bit body. The saddle receives and supports the ends of a journal member. A cutter is mounted for rotation on the journal member and an anti-friction bearing is disposed between the cutter and the journal and secures the cutter on the journal member. Seal means are provided between the cutter and the journal member to retain lubricant in the anti-friction bearing. A bearing loading passage is formed in the journal member for loading at least a portion of the anti-friction bearing between the cutter and the journal member. A lubricant compensator assembly is removably disposed in a lubricant compensator recess formed at one end of the journal. The lubricant compensator is in fluid communication with the anti-friction bearing and includes a rigid ball plug member, which obstructs the bearing loading passage and abuts the portion of the anti-friction bearing to retain the bearing between the cutter and journal.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: May 28, 1996
    Assignee: Baker Hughes Incorporated
    Inventor: Kay M. Crews
  • Patent number: 5512053
    Abstract: A surgical sleeve includes a housing and inner and outer sleeves coupled to the housing. A modular expandable hinge member is coupled to the outer sleeve and defines a radially expandable member to prevent inadvertent withdrawal of the surgical sleeve from a body cavity. A trigger is carried by the housing to cause relative movement between the inner and outer sleeves and radial expansion of the expandable member. The housing is further provided with a transversely slidable reducer assembly having three outer diameter seals for sealing against the exterior of surgical instruments having a variety of outer diameters. A trocar is provided for use with the surgical sleeve that is modular in construction and includes a shaft member and a modular, tubular, metallic cutting portion. The cutting portion forms only a portion of the trocar spike and the length of the shaft member governs the overall length of the trocar.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: April 30, 1996
    Assignee: Dexide, Inc.
    Inventors: Ronald W. Pearson, Steven S. Golden, Kurt B. Spoonemore, Donald E. Exline, Carroll Hewitt
  • Patent number: 5505663
    Abstract: A playground apparatus having a departure platform accessible by a person in a wheelchair, a transfer platform at a remote location, conveyor to transport the person between the platforms and a play apparatus to return to the departure platform. The conveyor is unidirectional to permit only upward movement and a handrail extends along the conveyor for pushing or pulling upwardly. The conveyor is inclined, having a belt on rollers, one of which is unidirectional. A clutch in the roller permits movement of the belt only in the upward direction. A handrail is used is used to pull or push upwardly and a slide used to return the person to the departure platform and the wheelchair.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: April 9, 1996
    Inventors: Gabriel M. Goulart, Andrew Mioduchowski
  • Patent number: 5493951
    Abstract: A fluid end including a cylinder has a bore extending therethrough. A plunger is reciprocally disposed in the bore. A packing element is disposed in the bore to seal the annular space between the plunger and bore and includes a lubrication ring formed of metallic fibers and impregnated with a solid lubricant, a seal ring formed of a high-lubricity polymeric material, and means for positioning the lubrication and seal rings in the bore.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: February 27, 1996
    Inventor: Curtis W. Harrison
  • Patent number: 5492186
    Abstract: An earth boring bit rotatable cutter having a first hardfacing composition of carbide particles selected from the class of cast and macrocrystalline tungsten carbide dispersed in a steel matrix deposited on the gage surface of at least some of the heel row teeth. A substantial portion of these particles are characterized by a high level of abrasion resistance and a lower level of fracture resistance. A second hardfacing composition of carbide particles selected from the class of spherical sintered and spherical cast tungsten is dispersed in a steel matrix deposited over at least the crest and an upper portion of the gage surface to cover the corner that tends to round during drilling. A substantial portion of the particles of this composition are characterized by a high level of fracture resistance and a lower level of abrasion resistance.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: February 20, 1996
    Assignee: Baker Hughes Incorporated
    Inventors: James L. Overstreet, Ronald L. Jones, Alan J. Massey
  • Patent number: 5487435
    Abstract: A bit body with a mount having a leg that extends along the rotational axis of the bit, a journal with a wedge shaped end secured to a wedge shape opening in the leg. A wedge on the journal has a fastener hole to register coaxially with a fastener hole in the leg and receives a fastener to secure the wedge on the journal in the wedge shape in the leg. One side of the wedge shape is generally perpendicular to the bit axis, and the adjacent side of the wedge forms an acute angle with said perpendicular side. The acute angle is in a range of about thirty to sixty degrees, ideally about 35 degrees.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: January 30, 1996
    Assignee: Baker Hughes Incorporated
    Inventors: Dolph R. Crawley, Steven R. Brooke
  • Patent number: 5486185
    Abstract: A surgical apparatus for use in laparoscopic surgery being adaptable to provide for clipping, cutting or clamping. The device has a probe having an instrument attached to one end to be inserted in a patient. Slidably disposed over the probe is a sliding sleeve which applies force to the instrument end of the probe to effect the desired action. In one embodiment the probe may be rotatable, while in another embodiment the instrument ends are interchangeable.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: January 23, 1996
    Assignee: Dexide, Inc.
    Inventors: Michael W. Freitas, Wayne D. Miller
  • Patent number: 5481983
    Abstract: A magnetic sweeper 20 is disclosed for capturing airborne particles which exhibit ferromagnetic behavior. The magnetic sweeper 20 uses a magnet(s) 43 having a magnetic field strength which captures particles coming within a predetermined distance of the magnet 43. A non-magnetic endless belt 31 is arranged about the magnet 43, wherein the particles are impinged against the belt 31 by the magnetic field lines of flux. This area is defined as a particle capturing first station. The belt 31 moves the captured particles further away from the magnet 43 to a second station. Located at the second station is a collector which includes a vacuum, a brush 41 and a particle flange. As will be appreciated by those skilled in the art, the magnetic field strength diminishes with distance from the magnet 43. Accordingly, after a certain distance from the magnet 43, the field strength drops to a point where the particles fall from the belt 31.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: January 9, 1996
    Assignee: Burlington Northern Railroad Company
    Inventors: Alberto M. Guzman, Hodge E. Jenkins, III, Ronald R. Newman, Suryanarayan G. Sankar, John G. Tabacchi
  • Patent number: 5479997
    Abstract: An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter has a cutter shell surface including a gage surface intersecting a heel surface. A plurality of hard metal inserts are arranged in generally circumferential rows on the cutter and include a heel row of heel inserts on the heel surface of the cutter and a gage row of gage inserts on the gage surface of the cutter. At least one scraper insert, formed of material more wear-resistant than that of the cutter shell surface, is secured to the cutter shell surface generally at the intersection of the gage and heel surfaces. The scraper insert includes a gage and a heel insert surface. The gage and heel surfaces of the scraper insert converge to define a cutting edge for engagement with the sidewall of the borehole, the heel insert surface defining a positive rake angle with respect to the sidewall of the borehole of between 0 and 15 degrees.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: January 2, 1996
    Assignee: Baker Hughes Incorporated
    Inventors: Danny E. Scott, Robert E. Grimes, Matthew R. Isbell, Rudolf C. O. Pessier
  • Patent number: 5476627
    Abstract: A quantity of fluid resin material is rendered into a flowable state without the use of solvents. The fabric then is beaded with at least one elongate bead of the flowable resin, wherein at least a portion of bead remains on the surface of the fabric to tackify the fabric and facilitate lay-up of the beaded fabric in the composite molding process. The fabric then is laid-up into a molding apparatus, wherein the bead adheres to surfaces in the molding apparatus and assists in positioning of the fabric therein. A further quantity of resin is disposed or injected under pressure into the molding apparatus and into contact with the fabric and contours of the mold. The resin then is cured to form the composite body.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: December 19, 1995
    Assignee: Bell Helicopter Textron Inc.
    Inventor: Marvin D. Black
  • Patent number: 5470073
    Abstract: An improved golf instructional device with a support member adapted to be held against a conventional or standard golf club. A cap is secured to the support member. A pair of links are formed integrally with and extend from the cap. An arm pad is formed integrally on each generally opposite end of each of the links so that both arms are properly and unalterably positioned relative to the grip and the club. The improved golf instructional device is integrally formed of a conventional material.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: November 28, 1995
    Inventor: Jose C. Vasquez
  • Patent number: 5467836
    Abstract: An earth-boring bit of the fixed cutter variety is provided with hard gage inserts that protrude from the gage surface of the cutter to engage the side of the borehole for holding gage. The gage insert has a substantially flat, polygonal face defining at least a pair of sharp cutting edges and at least a pair of cutting surfaces that define a negative rake angle with respect to the sidewall of the borehole that is being sheared by the gage insert. The face, cutting edge, and cutting surface of the gage insert are formed of a super-hard and abrasion-resistant material such as polycrystalline diamond or cubic boron nitride. The body of the insert is formed of a hard, fracture-tough material such as cemented tungsten carbide. The improved gage inserts provide an actively cutting gage surface that engages the sidewall of the borehole to promote shearing removal of the sidewall material.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: November 21, 1995
    Assignee: Baker Hughes Incorporated
    Inventors: Robert E. Grimes, Danny E. Scott, Rudolf C. O. Pessier
  • Patent number: D375077
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: October 29, 1996
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Rodney S. Taylor, Walter C. Joiner