Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7610938 | Cylindrical rod and method for manufacturing the same A cylindrical rod 20 is formed by bending sheet metal 10 so as to bond together a pair of edges 12 and 14 of the sheet metal 10. The cylindrical rod 20 includes therein (i) convex portions 16 each of which protrudes f... | 11/03/2009 |
| 7171988 | Tubing for hydrostatic forming, hydrostatic forming apparatus, and hydrostatic forming method using the apparatus A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjec... | 02/06/2007 |
| 7165579 | Pipeline repair system and method of installation A pipeline repair system includes a sleeve adapted to permanently enclose an outer surface of a longitudinal section of a pipeline having a defect. The sleeve includes two or more longitudinal segments of a cylinder joined at the longitudinal edges to form a sleeve ... | 01/23/2007 |
| 7159620 | Pipe blanket to fit a variety of pipe diameters A pipe blanket is provided for wrapping around and insulating a pipe. The pipe blanket comprises an insulation mat having an outer surface and an inner surface adapted to lie adjacent the pipe when the pipe blanket is wrapped around the pipe. An outer cover of the p... | 01/09/2007 |
| 7089642 | Device used to protect/repair debris chute The device used to protect/repair a debris chute is a sheet of material adapted to fit over and between the conical funnel sections of construction debris chute. Two chain segments are attached to the sheet to allow a user to connect the sheet to the two chute suppo... | 08/15/2006 |
| 7066210 | Compression pipe repairing and reinforcing methods A method of repairing a section of pipe is described. The method includes applying a first split sleeve and a second split sleeve to the pipe section, functionally associating the first end of the first split sleeve with the first end of the second split sleeve, and... | 06/27/2006 |
| 6997260 | Method of repairing tubular members on oil and gas wells The disclosure concerns a method and apparatus for repairing or structurally reinforcing an oil and gas well tubular member, or an assembly of tubular members. The assembly to be repaired can include a smaller diameter inner flow conveying conduit (or production tub... | 02/14/2006 |
| 6964282 | Coated fibrous pipe insulation system A pipe insulation system includes a tubular core of fibrous insulation and a flexible closed cell foam layer overlaying the core and forming an outer surface of the system. The tubular core has a first longitudinal slit extending completely through the wall of the c... | 11/15/2005 |
| 6872463 | Reinforcing rod for body and/or chassis elements for a motor vehicle A reinforcing bar for body and/or chassis parts of a motor vehicle includes a one-piece element (8) extending from one end of the bar to the other and having a median portion (10) with closed tubular cross-section and at least one end portion (12 | 03/29/2005 |
| 6786241 | Insulated jackets for hot and cold piping systems and methods of use The disclosure relates to a plastic jacket having air spaces formed by a core and a cover used to insulate hot and cold piping systems and the fittings for those systems. The jacket is made by providing a core that has portions that extends away from the element and... | 09/07/2004 |
| 6782922 | Coated fibrous pipe insulation system A pipe insulation system includes a tubular core of fibrous insulation that is coated with a pliable polymer. The coated tubular core has a first longitudinal slit extending completely through the wall of the core and a second longitudinal slit in the inner surface ... | 08/31/2004 |
| 6763853 | Lightweight conduit A lightweight conduit for fluid conveyance, having an outer conduit portion formed of rigid insulation material, an inner conduit portion formed of rigid insulation material, the inner conduit portion having an outer surface and an inner surface and first and second... | 07/20/2004 |
| 6591900 | Heat exchanger, tube for heat exchanger, and method of manufacturing the heat exchanger and the tube A heat exchanger (1) is formed by stacking tubes (2) formed by rolling a flat tube material (10) with a fin (3) interposed between the adjacent tubes, joining tanks (4), (5) and the tubes, (2) to appropriately communicate the tubes (2) and the tanks (4), ... | 07/15/2003 |
| 6575198 | Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction In manufacturing an exhaust pipe of two-passage construction, a metallic plate having a first end and a second end respectively elongated in a longitudinal direction of the exhaust pipe is prepared. The metallic plate is bent into a substantially S shape ... | 06/10/2003 |
| 6532995 | Super-high-strength line pipe excellent in low temperature toughness and production method thereof To provide a super-high strength line pipe that is excellent in low temperature toughness, can be field welded easily, and has a tensile strength of at least 900 MPa (exceeding ×100 of the API standard), and a production method thereof. The present inven... | 03/18/2003 |
| 6403180 | Pipe insulation An insulating system for pipes is provided which includes at least two different types of pipe insulation, wherein each pipe insulation is a pipe jacket formed by two mating sections, a first section and a second section with each section having a mating ... | 06/11/2002 |
| 6341626 | Flexible protective sleeve A flexible protective sleeve for use in protecting an elongated member comprises a generally tubular wall for at least substantially surrounding the member. The sleeve also comprises permanent adhesive adhered to an interior surface of said wall. The adhe... | 01/29/2002 |
| 6202701 | Hose for conveying free-flowing material A hose for conveying free-flowing materials, such as coating powder made of an electrically non-conductive or poor conductive material is characterized in that a wall member of an electrically conductive material is installed into the wall of the hose, sa... | 03/20/2001 |
| 5899239 | Tubular fencing components formed from plastic sheet material Tubular components for use in modular fencing systems are manufactured utilizing die-forming of a flat plastic sheet, rather than by profile extrusion of a tubular form. This approach is made feasible by an aesthetically acceptable and structurally sound ... | 05/04/1999 |
| 5873391 | Pressure-expandable conduit liner Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous ... | 02/23/1999 |
| 5722463 | External pipe reinforcing sleeve In an external steel sleeve for reinforcing or for providing a seal to prevent leakage in a pipe, the sleeve consists of steel plate material that is shaped and sized to encircle a portion of the length of the pipe. The top and bottom halves of the sleeve... | 03/03/1998 |
| 5505230 | Means for protecting conducting equipment A protective sleeve assembly 10 for use in protecting conducting equipment such as cables, wiring and tubing is disclosed as comprising a longitudinal body portion 12 which includes an inner surface 16 and an outer surface 14, a male locking member 18 ext... | 04/09/1996 |
| 5411777 | Heat shrinkable protective sheets A heat shrinkable wrap-around sleeve comprises a heat shrinkable sheet with a heat stable strip welded on one end. The free end of the heat stable strip is overlapped on the outer side of the opposite end of the sheet and welded thereto by heating applied... | 05/02/1995 |
| 5393105 | Ductwork for delivery of low temperature air A duct device for insulated delivery of temperature controlled air. The device comprises an elongated, tubular member configured as a conduit for delivery of air and having a tubular wall fabricated of non-load-bearing insulative material. This insulated ... | 02/28/1995 |
| 5328732 | Cylindrical package stuffing material Package stuffing material is formed by rolling strips of relatively rigid paper stock to cylindrical bodies. The strip is rolled so that the outer longitudinal edge is adhered to the outer surface of the cylinder while the inner end hangs free. The inner ... | 07/12/1994 |
| 5302428 | Multi-layer wraparound heat shrink sleeve A multiple layer wraparound sleeve having a heat shrinkable backing layer and at least one functional layer has the functional layer as a discrete sheet which is connected to one end of the backing layer, and is of at least sufficient length that, when th... | 04/12/1994 |
| 5186251 | Roll formed heat exchanger tubing with double row flow passes Heat exchanger with double row tubes with each tube being substantially identical and made by a sequence of roll forming operations from a single piece blank so that it has a centralized vertical connector web of the thickness of the blank connecting and ... | 02/16/1993 |
| 5137057 | Flexible duct and method of suspending a duct A flexible duct adapted to be suspended from a support and method of making same. The duct comprises a conduit of heat-sealable plastic film having a longitudinally extending fin on the conduit for suspending the conduit. The fin comprises first and secon... | 08/11/1992 |
| 5134000 | Heat shrinkable protective sheets and methods for their manufacture A heat shrinkable wrap-around sleeve comprises a heat shrinkable sheet with a heat stable strip welded on one end. The free end of the heat stable strip is overlapped on the outer side of the opposite end of the sheet and welded thereto by heating applied... | 07/28/1992 |
| 5122402 | Electrical or optical cable manufacture A kit of parts for assembling an elongate former suitable for transversely folding a longitudinally advancing tape around an advancing cable core comprises a primary former having a conically-shaped channel therethrough, a plurality of separately formed n... | 06/16/1992 |
| 5028740 | Hollow housing case for sheathing and electromagnetically shielding electrical apparatus A hollow housing case of an electriclly conducting plate which has one insulating surface includes a connecting part to connect together electrically both ends of the plate. The connecting part is a bent portion which is formed by bending at least one end... | 07/02/1991 |
| 4940614 | Tubular casing having an adhesive tape in the direction of its longitudinal axis A tubular food casing comprising a film which has been bent to form a tubing, the longitudinal edges of which are joined to one another by means of an adhesive tape, which forms a glued seam. The adhesive tape comprises a plurality of incisions, ending in... | 07/10/1990 |
| 4780347 | Pipe insulation for cold weather applications An insulation system for pipes which includes segments of fiberglass insulation or other mineral fiber slit along their length for surrounding the pipe, a butt strip tape for sealing abutting ends of the segments of insulation, and means for sealing a fla... | 10/25/1988 |
| 4738883 | Wrap around heat shrinkable closure with flexible extension A heat shrinkable closure is disclosed having a central section which has been hot stretched and cooled while in stretched condition sandwiched between a pair of unstretched end sections and in which one end section has a tapered grooved extension.... | 04/19/1988 |
| 4713271 | Foamed polymer tubing Process and apparatus are disclosed for manufacturing foamed articles such as tubes used as pipe insulation, which tubes are of a high impermeability and flexibility and are formed of a polymer, such as polyethylene or polypropylene, containing up to as m... | 12/15/1987 |
| 4647256 | Method and apparatus for producing underground pipes A method of producing underground pipes, with pipe sections being pressed ahead into the ground. For each pipe section, at least two partial pipe shells are used which are separated from one another in the longitudinal direction, and are joined about supp... | 03/03/1987 |
| 4528225 | Easily peelable sausage casing having a glued seam, process for its manufacture, and its use Disclosed is a tubular sausage casing of a cellulose material having a longitudinal seam region whereat is located a smoke-permeable adhesive-containing layer of a substantially water-insoluble cationic resin which is a condensation product of a polyamide... | 07/09/1985 |
| 4430020 | Drip irrigation hose A drip irrigation hose which is characterized by a tubular hose member having a major or primary channel or conduit and a secondary regulatory conduit or channel plate laminated between the lapped edge portions of the major channel with one edge of the se... | 02/07/1984 |
| 4410011 | Tubular casing with glued seam and its manufacture and use for curved or ring-shaped sausages A tubular casing for foodstuffs, in particular sausages, comprising a web (4) which is curved along its longitudinal axis and having its longitudinal edge regions (1, 2) bonded by a glued seam. The edge regions (1,2) meet or overlap and are bonded with a ... | 10/18/1983 |
| 4401135 | Tubular casing with glued seam and process for its manufacture A tubular casing for foodstuffs, in particular sausages, comprising a web (4) which is curved along its longitudinal axis and having its longitudinal edge regions (1, 2) bonded by a glued seam. The edge regions (1, 2) meet or overlap and are bonded with a... | 08/30/1983 |
