Patents Represented by Law Firm Subkow and Kriegel
  • Patent number: 4294486
    Abstract: A camper and tent unit is applied to a passenger car and has a housing with a vertical section supported on the rear bumper of the car and a horizontal section extending forwardly and supported on the roof of the car. The vertical section contains a galley and the standard vehicle safety lights to be plugged into a connector on the car. A window in the vertical section affords clear rear vision. Bumper structure engages the car bumper for protection. The horizontal section houses folded tent components and poles enabling erection of a complete camper-tent including the housing and flooring.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: October 13, 1981
    Inventor: Eusebio H. Espejo
  • Patent number: 4294477
    Abstract: A ring gasket is retainer in position on a pipe connector flange with the ring gasket properly positioned for sealing engagement and loading between opposed circular grooves in the flange and a mating flange or member. The ring gasket is supported on one of the connector parts by a spacer ring or by a portion of the flange which effects a standoff between the connector parts when they are connected. The support for the ring gasket includes a flexible connection between the inside of the spacer ring and the outer periphery of the ring gasket. The ring gasket has outer peripheral, oppositely tapered sealing surfaces loaded into sealing engagement with opposing companion surfaces forming the grooves in the flanges upon making up of the connection, and the flexible connection between the spacer ring and the ring gasket permits such axial movement of the ring gasket as is necessary to enable loading thereof.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 13, 1981
    Assignee: Vetco Inc.
    Inventor: Arthur G. Ahlstone
  • Patent number: 4289244
    Abstract: Apparatus for supporting intravenous bottles, or the like, which includes a first elongate rod member adapted to be suspended from the ceiling, and a second elongate rod member telescopically related to the first member, and depending therefrom. A bottle supporting structure is adjustable lengthwise along the second member and is secured at different locations along the second member by a readily accessible first lock device disposed substantially below a second lock device that releasably secures the second member to the first member at different locations therealong, the second lock device being controlled by a mechanism operated from a remote location along the second member positioned below the bottle supporting structure. By virtue of the above apparatus, the rod members can be adjusted with respect to each other to enable the same apparatus to be used in rooms having different ceiling heights, the bottle supporting structure being shiftable to convenient desired locations along the second rod member.
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: September 15, 1981
    Assignee: The Lightron Corporation
    Inventors: Douglas L. Frankhouser, Louis Schnitz, Joseph C. Greenstadt
  • Patent number: 4287250
    Abstract: Devices for packaging and/or cushioning products and objects, the devices including permeable elastomeric sheets sealed together at predetermined locations to form separate and discrete chambers, or intercommunicating chambers, inflated initially with a gaseous medium comprising a gas other than air, oxygen or nitrogen which has a very low diffusion rate from each chamber through the elastomeric sheets, ambient air diffusing more readily through the sheets into each inflated chamber to provide a total pressure therein which is the sum of the partial pressure of the air in the chamber and the partial pressure of the gas in the chamber. Not only does the air diffusing into a chamber increase the total pressure therein above the initial inflation pressure of the gas, but the air in the chamber inhibits outward diffusion of the gas from the chamber or compensates for any loss of pressure caused by such outward diffusion of the gas.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 1, 1981
    Assignee: Robert C. Bogert
    Inventor: Marion F. Rudy
  • Patent number: 4278138
    Abstract: A composite drill collar for drilling bore holes in earth formations including a structural steel outer jacket having a lower end secured to a lower coupling connectable to a drill bit and an upper end secured to an upper coupling connectable to an adjacent drill collar thereabove. An annular heavy metal core of sintered tungsten is disposed in the jacket and is held in compression therein by preloading the lower and upper couplings against the ends of the core, which places the jacket in tension, causing the jacket to contract and grip the periphery of the core. The structural steel jacket has a thick wall to carry the bending, torsion, compression, tension and impact loads encountered in the drilling operation, so that such loads are not carried through the core, which has the purpose of increasing the overall density and mass of the composite drill collar, lessening considerably the tendency for a deviated well bore to be produced.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: July 14, 1981
    Assignee: Christensen, Inc.
    Inventors: David S. Rowley, James T. Aumann, Lothar H. Waldes
  • Patent number: 4275528
    Abstract: A milling cutter rotatable about an axis and including a cylindrical steel core having helical tapered threads, such as V-shaped threads, diamond grit of a suitable mesh being appropriately secured, as by nickel plating, onto the crests, roots and flanks of the threads, the diamonds being substantially contiguous one another and so related to each other that as the cutter rotates against the work, the individual crest diamonds will first cut the work and eventually break off. Because of the helical pattern, the cutting action will continue, since one of the other diamonds lying in the same transverse plane normal to the axis as the missing diamond will operate upon the work being cut. The loss of the outermost or crest diamonds will expose diamonds in the tapered flanks of the thread to provide cutting points on the cylinder that are operable to cut the work, the flank diamonds traversing the same path normal to the axis of the cutter as the crest diamonds.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: June 30, 1981
    Assignee: Christensen, Inc.
    Inventor: Eugene E. Higginbotham
  • Patent number: 4272109
    Abstract: A ring gasket is retained in position on a pipe connector flange with the ring gasket properly positioned for sealing engagement and loading between opposed circular grooves in the flange and a mating flange or member. The ring gasket is supported, in some forms, at its outer periphery by a member connected to one of the connector parts between opposed abutting surfaces of the connector parts when they are connected. The ring gasket is increased in size, from a standard, to compensate for the standoff, so that the ring gasket is properly loaded. The support for the ring gasket, in another form, includes a direct connection between the ring gasket and the flange or support means, and in other forms, the ring gasket is supported at its inner periphery, and can not affect abutment between the flanges. The ring gasket has peripheral, oppositely tapered sealing surfaces loaded into sealing engagement with opposing companion surfaces forming the grooves in the flanges upon making up of the connection.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: June 9, 1981
    Assignee: Vetco, Inc.
    Inventor: Arthur G. Ahlstone
  • Patent number: 4271606
    Abstract: Shoes incorporating a multiple chambered sole member inflated to a pressure above atmospheric, and disposed above and adjacent to an outsole having a deflectable web and projecting elements, such as ground-engaging studs, depending from the web and disposed in spaced geometric relation to each other to distribute loads imposed on the studs through a greater area of the inflated sole member to a wearer's foot, thereby enhancing its support and comfort.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: June 9, 1981
    Assignee: Robert C. Bogert
    Inventor: Marion F. Rudy
  • Patent number: 4266621
    Abstract: A diamond milling cutter for elongating a laterally opening window in a well casing set in a well bore extending into the earth. The mill has a revolving surface which engages a sidetracking whipstock or the edge of the casing being milled to urge the mill off dead center on the casing edge and enhance the cutting action. One or more eccentric lobes engage the whipstock and cause the mill to revolve on a gyrating or non-fixed axis and effect oscillation of the cutter center laterally of the edge, or a broadly conical nose on the cutting face of the mill provides a wedge action against the casing to laterally move the mill off center and enhance the cutting action.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: May 12, 1981
    Assignee: Christensen, Inc.
    Inventor: Kenneth A. Brock
  • Patent number: 4264086
    Abstract: A bumper hitch has a clamp applied to a vehicle bumper by a flexible strap and hooks. The flexible strap is initially wound on rotatable cross members to initially engage the hooks with the upper and lower, inner edges of the bumper. Screws at opposite ends of the cross members are tightened to move the cross members in vertical slots, one towards the other, to tension the straps, and causing tight engagement of the hooks with the edges of the bumper, to securely mount the clamp on the bumper. A plate on the clamp has a hole to receive a pin on the companion hitch part. The pin is vertically disposed at the end of a support arm which is inclined relative to a connector plate, enabling inversion of the pin and arm to effect a connection at different elevations.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: April 28, 1981
    Inventor: Eusebio H. Espejo
  • Patent number: 4260022
    Abstract: A through the flowline or "TFL" tool selector has a base provided with a number of spaced flowline ports and a diverter tube shiftably mounted in a housing for selective communication with the flowline ports. The base is mounted on a remotely operable connector, and the assembly is lowered onto a template beneath the sea having conduits aligned with the selector ports when the assembly is connected to the template. The inlet conduit loop of the selector assembly is also connected to an inlet conduit on the template. The connector is remotely operated to mechanically lock the selector apparatus in place.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: April 7, 1981
    Assignee: Vetco, Inc.
    Inventor: Bernard H. Van Bilderbeek
  • Patent number: 4259210
    Abstract: This invention relates to catalysts containing crystalline alumino-silicate zeolite and hydrothermally treated silica-alumina cogels and the employment of the same as cracking catalysts.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: March 31, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4252684
    Abstract: This invention relates to alpha (Si, Al)O.sub.4 crystalline complex, and to silica-alumina gel and crystalline alumino silicate host containing said alpha (Si, Al)O.sub.4 complex; both gels and crystalline alumina silicates containing a novel crystalline phase resulting from the hydrothermal treatment of the host (Si, Al)O.sub.4 complexes, both amorphous gel and crystalline alumino silicates, in the presence of rare earth cations.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: February 24, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4245709
    Abstract: A stabilizer sleeve, or other sleeve, to be releasably mounted on a drill collar for centering a drill string in a well bore, includes an outer stabilizer sleeve to be mounted on the cylindrical periphery of the drill collar and having an internally threaded bore, the threads of which have conical roots, receiving an externally threaded yieldable sleeve member placed over the drill collar, the crests of the external threads also being conical, rotation of the yieldable member threading it into the stabilizer sleeve and effecting its contraction until its internal surface contacts the periphery of the drill collar, further rotation and tightening of the sleeve member in the stabilizer sleeve compressing the sleeve member against the drill collar periphery, with the crests bearing against the root portions of the internal sleeve threads to secure the sleeve frictionally in position on the drill collar.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: January 20, 1981
    Assignee: Christensen, Inc.
    Inventor: Tom Manuel
  • Patent number: 4246138
    Abstract: This invention relates to catalysts containing crystalline alumino-silicate zeolite, hydrothermally treated silica-alumina cogels and the employment of the same as cracking catalysts.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: January 20, 1981
    Assignee: Filtrol Corporation
    Inventors: Hamid Alafandi, Dennis Stamires
  • Patent number: 4244431
    Abstract: Apparatus is disclosed for drilling a pilot hole and subsequently enlarging the pilot hole in earth formation. A dual concentric pipe string is used for circulating air downwardly through the outer pipe via a cross-over sub, through a pilot bit and upwardly through the bore hole outside the pipe string to bail cuttings, during drilling of the pilot hole. The air pressure expands the cutters of an expansible bit while a limited portion of the air supplied cools the cutters. After the cutters are fully expanded, additional air is utilized to clean and cool the cutters. Air is returned through the inner pipe of the dual concentric pipe string. A venturi device is utilized to induce return flow through the inner pipe during enlargement of the hole and to vacuum residue when enlargement is completed. The dual concentric pipe string is made up of lengths of pipe providing threaded, sealed joint.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: January 13, 1981
    Assignee: Tri-State Oil Tool Industries, Inc.
    Inventor: Gary R. Johnson
  • Patent number: 4244432
    Abstract: The invention relates to the design of earth bore-hole drill bits employing shaped preform cutters containing hard abrasive materials, such as diamonds, the cutters being mounted in companion preformed sockets in a hard metal bit matrix.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: January 13, 1981
    Assignee: Christensen, Inc.
    Inventors: David S. Rowley, Bruce H. Walker, Coy M. Fielder
  • Patent number: 4243159
    Abstract: A spring actuated pump device is mounted on a container for fluids, the device including a pump chamber into which fluid from the container can flow, the spring expanding and forcing a cylinder structure against the fluid in the chamber to pressurize it, in order that opening of a discharge valve will effect spraying of a desired quantity of fluid from the device, a suitable nut being threadedly connected to the cylinder structure to enable such structure to be shifted axially, in response to rotation of the nut relative to the container and cylinder structure, to compress the spring and store additional fluid pressure energy therein. A check valve permits ambient air to enter the container to prevent a vacuum condition from developing therein as fluid is withdrawn therefrom. Moreover, fluid is prevented from dribbling from the discharge valve of the device as the spring nears the end of its expansion range.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: January 6, 1981
    Assignee: Spatz Corporation
    Inventor: Walter B. Spatz
  • Patent number: 4243252
    Abstract: Apparatus is disclosed for drilling a pilot hole and subsequently enlarging the pilot hole in earth dormation. A dual concentric pipe string is used for circulating air downwardly through the outer pipe, a cross-over sub and through a pilot bit and upwardly through the bore hole outside the pipe string to bail cuttings, during drilling of the pilot hole. The air pressure expands the cutters of an expandible bit while a limited portion of the air supplied cools the cutters. The dual concentric pipe is made up by joints having pin and box structures which provide inner and outer flow passages and shoulders which abut between the outer members and which are resiliently sealed between the inner members.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: January 6, 1981
    Assignee: Tri-State Oil Tool Industries, Inc.
    Inventor: Gary R. Johnson
  • Patent number: D261464
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: October 27, 1981
    Inventor: Allan B. Smith