Patents Represented by Law Firm Subkow and Kriegel
  • Patent number: 4098334
    Abstract: A hanger for supporting dual tubing strings in a well casing from hanger mandrels which can swivel to facilitate threadedly connecting each mandrel to its associated tubing string. The hanger includes an orienting sleeve for receiving safety shut-off valves, the sleeve being adapted to swivel with respect to the rest of the hanger, making it easier to assemble the hanger onto the running and setting tool used for setting the hanger in the casing.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: July 4, 1978
    Assignee: Baker International Corp.
    Inventor: Talmadge L. Crowe
  • Patent number: 4098363
    Abstract: The invention relates to bore hole drills employing spaced shaped cutters in arrays separated by fluid channels in which there are positioned arrays of nozzles suitable for bit cleaning and detritus removal action.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: July 4, 1978
    Assignee: Christensen, Inc.
    Inventors: Heino J. Rohde, Rainer Juergens
  • Patent number: 4098491
    Abstract: This invention relates to apparatus for the control of a weight suspended from a vessel employing a pneumatic suspension system subject to heave action so as to maintain the pressure in the pneumatic system substantially constant during the heave of the vessel as the result of the wave action.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: July 4, 1978
    Assignee: Vetco Offshore Industries, Inc.
    Inventor: Edward Larralde
  • Patent number: 4098561
    Abstract: This invention relates to sleeves for sealed bearings for rotating shafts employing packing glands mounted in the floating sleeve whereby the integrity of the seal is maintained during transverse displacement of the shaft.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: July 4, 1978
    Assignee: Smith International, Inc.
    Inventors: John E. Tschirky, Gary Monroe Crase
  • Patent number: 4094539
    Abstract: A connector for securing adjacent pile sections, or other pipe sections, to each other, including a box disposed over a pin, with the end of the box engaging a companion pin shoulder, the pin and box being rigidly secured together by a plurality of lock dogs forced radially within companion grooves in the pin, the dogs and grooves having coengaging cam surfaces exerting an axial thrust between the box end and pin shoulder upon inward movement of the dogs, to provide a large bearing area and preload between the pin and box under substantial compression to prevent separation between the pin and box due to rebound during the pile driving operation.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: June 13, 1978
    Assignee: Vetco, Inc.
    Inventor: Larry E. Reimert
  • Patent number: 4093281
    Abstract: A threaded connector for a pipe string, such as a production riser used in connection with sub-aqueous wells, in which the threaded connection between the pin member and box member of the connector is made up initially through an application of relatively low torque to the members, after which the connector has a straight line pretension force of a high tensile value applied to it through use of a suitable tool, the high pretension force being retained between the mating threads of the pin and box members by a preload reaction member threaded on the pin member and rotated into solid engagement with the box member while the pretension force is being applied, to lock the preload in the connector between the threads.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: June 6, 1978
    Assignee: Vetco Offshore Industries, Inc.
    Inventor: Martin B. Jansen, Jr.
  • Patent number: 4092881
    Abstract: An apparatus for making-up and breaking a threaded connection between threaded tubular members, including a turnable chuck and a non-turnable chuck, each of which can be releasably clamped around its companion threaded tubular member, rotation of the turnable chuck in one direction making up the threaded connection, whereas rotation of the turnable chuck in the opposite direction breaking the threaded connection.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: June 6, 1978
    Assignee: Christensen, Inc.
    Inventors: Rainer Jurgens, Alfred Ostertag
  • Patent number: 4086187
    Abstract: Attrition resistant zeolitic catalysts containing silica, alumina and clay components.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: April 25, 1978
    Assignee: Filtrol Corporation
    Inventors: John Lim, Dennis Stamires
  • Patent number: 4085735
    Abstract: An air ventilation and washing system for extracting noxious or other impure air, such as is present above the cooking surface of a stove having automatically activated electrical and mechanical fire control apparatus selectively responsive to changes in temperature is disclosed.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: April 25, 1978
    Assignee: National Food Service Equipment Fabricators, Inc.
    Inventors: Arnold S. Kaufman, Robert L. Anderson
  • Patent number: 4085069
    Abstract: Catalysts containing a matrix and an ammonium zeolite of the faujasite type produced by exchanging the zeolite whose exchange sites are substantially entirely occupied by Na cations, with an ammonium salt solution to exchange substantially all of the Na cations with NH.sub.4 cations with substantially no impairment of crystallinity by a control of the relation of the equivalents of NH.sub.4 in the solution to equivalents of Na in the zeolite.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: April 18, 1978
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4081042
    Abstract: The upper end of a rotary drill bit having initially retracted expansible cutters is connected to a stabilizer having initially retracted expansible stabilizer members, the upper end of the stabilizer being connectable to a rotary drill pipe string. The apparatus is lowered in a bore hole on the drilling string and rotated, the cutters being expanded to cut into the bore hole and enlarge it to a desired diameter, the apparatus being lowered to progressively continue enlarging the hole in a downward direction. Upon the stabilizer moving into the enlarged hole, its stabilizer members are expanded laterally to an extent conforming to the enlarged hole diameter, being engageable with the wall of the bore hole to stabilize the bit therebelow.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: March 28, 1978
    Assignee: Tri-State Oil Tool Industries, Inc.
    Inventors: Gary R. Johnson, Archer W. Kammerer, Jr.
  • Patent number: 4081043
    Abstract: Hydraulic jar apparatus to be disposed in a drilling string used in drilling a well bore or other bore hole, embodying inner and outer telescopically arranged bodies, with a hammer on the inner body adapted to strike an anvil on the outer body, the bodies being initially releasably locked or interconnected in fully telescoped or contracted relation by a locking device which can be released while the apparatus is in the bore hole before the apparatus can function as a jarring device or a bumper sub.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: March 28, 1978
    Assignee: Christensen, Inc.
    Inventor: Rainer Juergens
  • Patent number: 4077657
    Abstract: This invention relates to a device for selectively setting the axial alignment of sections of pipe from axial coincidence to an obtuse angle between the pipe sections.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: March 7, 1978
    Assignee: Smith, International, Inc.
    Inventor: Kurt H. Trzeciak
  • Patent number: 4074912
    Abstract: A connector apparatus particularly useful in pile driving in water to enable a pile string to be released or disconnected in the vicinity of the mudline after the pile has been driven to its final depth, the connector including an upper box secured to one portion of a pin apparatus attached by a releasable mechanism to another lower portion of the pin apparatus, release of the mechanism by a suitable tool operated from a remote location enabling the drive pile string above the lower portion of the pin to be withdrawn through the water to the surface.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: February 21, 1978
    Assignee: Vetco Offshore Industries, Inc.
    Inventors: Bernard H. Van Bilderbeek, John E. Maingot, James M. Walker
  • Patent number: 4073510
    Abstract: An enlarged print book is produced by microfilming the front and back pages of each sheet of an original book, printing each of such pages from the microfilm at a desired page size, severing each printed page approximately in half, arranging the bottom half of one page above the top half of a succeeding page with the severed upper end or trim line of the bottom half a predetermined distance above the severed lower end or trim line of the top of the succeeding page, microfilming such arrangement on a single film frame, enlarging the single frame to a predetermined extent to produce a single enlarged sheet having the bottom half at its top and top half at its bottom, trimming the top and bottom halves at exactly their respective upper and lower trim lines, folding each enlarged sheet precisely midway between their trim lines with the printed sides of the bottom and top halves exposed, producing each succeeding enlarged sheet from the original book in the above manner, and binding successive enlarged sheets toge
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: February 14, 1978
    Inventor: John A. Scharlin
  • Patent number: 4068865
    Abstract: Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box and bearing against a box shoulder, the pin and box being secured together by coengaging members mounted on the box, and between the pin and box, and forced against a shoulder at the outer portion of the pin over substantially 360.degree. of the shoulder, to correspondingly force the outer end of the pin against the box shoulder, with the contacting pin and box surfaces axially preloaded against each other. The coengaging members can include a plurality of lock dogs mounted in the box and movable radially inwardly against a ring device disposed between the box and pin and engaging the shoulder at the outer portion of the pin, the dogs and pin device having coengaging cam surfaces causing dogs to exert an axial thrust on the ring device which is transmitted from the ring device to the pin shoulder.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: January 17, 1978
    Assignee: Vetco Offshore, Inc.
    Inventor: Forrest E. Shanks, II
  • Patent number: 4068868
    Abstract: A universal flexible joint for fluid conduits includes an upper body connectible to an upper conduit and a separate lower body connectible to a lower conduit. A housing surrounds both bodies, there being an upper spherical laminated bearing structure, embodying elastomer elements, between the upper body and upper portion of the housing, and a lower spherical laminated bearing structure, embodying elastomer elements, between the lower body and lower portion of the housing, allowing tensile force to be transmitted from the upper body through the upper bearing structure to the housing and through the lower bearing structure to the lower body, while permitting universal movement between the upper body and lower body relative to the housing.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: January 17, 1978
    Assignee: Vetco Offshore Industries, Inc.
    Inventor: Juergen H. Ohrt
  • Patent number: 4067404
    Abstract: An angle adjustment sub which permits the rotational adjustment of adjacent portions of a running string to bring the axis of adjacent portions of a running string, which are deviated at different vertical angles, into a common planar axis.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: January 10, 1978
    Assignee: Smith International, Inc.
    Inventor: Gary M. Crase
  • Patent number: 4033700
    Abstract: A roll-on dispenser comprises a generally tubular barrel having an open forward end and a generally tubular ball-carrying member having an open rear end which is slidably received in the chamber of the barrel. The ball-carrying member has a ball applicator rollably mounted in its forward end. The rear end of the barrel is vented to the atmosphere, and a one-way follower device is slidably disposed in the barrel chamber for forward sliding movement. A cap is adapted to be threaded on the ball-carrying member and, when screwed thereon, pulls the ball-carrying member forwardly in the barrel chamber to increase the effective volume of the chamber and create a partial vacuum or sub-atmospheric pressure therein, whereupon the atmospheric pressure in the rear end of the barrel chamber will force the one-way follower forwardly by a distance corresponding to the volume of fluent material previously dispensed.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: July 5, 1977
    Assignee: Spatz Corporation
    Inventor: Walter B. Spatz
  • Patent number: 4029368
    Abstract: This invention relates to hard metal radial bearings particularly suitable in connection with thrust bearings which are lubricated by erosive fluids passing through the radial bearings as are employed in down-hole drilling motors.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: June 14, 1977
    Assignee: Smith International, Inc.
    Inventors: John E. Tschirky, Gary Monroe Crase