Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7384483 | Stator core, and method and apparatus for producing the same In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, a... | 06/10/2008 |
| 7363989 | Device for a pulling tool for use in pipes and boreholes for the production of oil and gas A pulling tool for use in the placing of equipment and acquisition of data from pipes and boreholes used in the production of oil and gas. For this purpose the tool is constructed round a central, elongate, cylindrical main element (1) to which there are arra... | 04/29/2008 |
| 7347649 | Powder purge tube To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a centr... | 03/25/2008 |
| 7328475 | Centre line multidimensional suspension system There is described a novel apparatus for use in connection with pipe cleaning and monitoring systems. The apparatus is a suspension system adapted to fit a pipeline pig shaft, the pig being provided with a plurality of wheels. The wheels are concentrically mounted a... | 02/12/2008 |
| 7294222 | External pipe cleaner Disclosed is a pipe cleaner apparatus that is attached to a pipe fusion machine. The pipe cleaner removes dirt, snow, mud, and other debris from the outer surface of pipe sections prior to the butt fusion process. The pipe cleaner may be a wiper through which the pi... | 11/13/2007 |
| 7270847 | System and method for coating tubes The present invention relates to the coating of tubes, and more particularly to a system and method for renovating the inner surface of deteriorated or pitted tubes to extend tube life and enhance performance. A method of the present invention includes first providi... | 09/18/2007 |
| 7213290 | Hydraulically dynamic mono-pig scraper The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudi... | 05/08/2007 |
| 7188568 | Self-propelled vehicle for movement within a tubular member A self-propelled vehicle (20) for movement within a tubular member (22) includes propulsion mechanisms (28) distributed about a core element (24). Each of the propulsion mechanisms (28) includes a drive belt (28). A first pu... | 03/13/2007 |
| 6921127 | Structural part for a motor vehicle The invention relates to a component, in particular a crossmember for arranging between A-pillars of a motor vehicle, having an essentially tubular base body in which at least one duct is provided. In order to provide an improved lightweight component which can be p... | 07/26/2005 |
| 6792641 | Pipeline pig A pig for use with a tubular bore wherein the pig is comprised of a body which supports a plurality of turbine blades wherein the blades mechanically break down and remove debris from the tubular bore. The blades have a profile which allows forward movement and rota... | 09/21/2004 |
| 6447610 | Coating inside of syringe An inside wall of an elongated syringe body is coated by supplying at least an outer surface of an applicator ring with a coating of silicon oil while displacing a rod carrying the coated ring from a rear end to a front end of the body with the ring in co... | 09/10/2002 |
| 6126748 | Stator core resin remover A system for removing resin from the stator core of a stator of a motor involves means for removing resin (1) from an inner circumferential surface surrounding the bore of the stator core; (2) from the outer circumferential surface of the stator core; and... | 10/03/2000 |
| 5855676 | Tube lining apparatus Tubelining device and technique using a coating-applicator for slip-casting a fluent liner coating onto the internal surface of a tube.... | 01/05/1999 |
| 5681387 | Segmented squeegee blade A segmented squeegee blade is provided for optimizing the flow of a depositable material such as viscous liquid or flowable medium such as solder paste, adhesive, or the like through a stepped stencil onto a substrate. The blade has a plurality of segment... | 10/28/1997 |
| 5443377 | Increased efficiency apparatus for lining a pipe with a cement mortar An increased efficiency method and apparatus for lining a section of pipe with a cement mortar. After a wet cement mortar has been applied to a cleaned interior surface of a pipe, carbon dioxide is introduced into the freshly lined section of the pipe in ... | 08/22/1995 |
| 5407483 | Method for impregnating a lining material with a hardenable resin An improved method for impregnating a tubular lining material with a hardenable liquid resin employed in a pipe repair operation by lining the pipe internally with the lining material; the method comprises (a) supplying about the same amounts of the same ... | 04/18/1995 |
| 5362224 | Chimney lining former and compactor The invention relates to a chimney lining device which includes a shell member which telescopically embraces the exterior of a bell member. A shell member of desired dimensions may be used in conjunction with a standard sized bell member for the lining of... | 11/08/1994 |
| 5326400 | Plug member for use in coating an interior surface of a pipe There is disclosed a method for coating an interior surface of an elongated pipe member. The method uses a first plug member having a resilient cylindrical body with an outer diameter close to an inner diameter of the pipe member, and a second plug member... | 07/05/1994 |
| 5059067 | Method for forming a curved interior profile to a cementitious material A method for forming cementitious material, such as gunite or the like, to a desired cross-sectional profile for an interior structure such as a swimming pool, skateboard bowl or the like. A forming assembly includes a cutting edge, which is formed so as ... | 10/22/1991 |
| 5019417 | Pipe lining system A system for pipe lining including a forward seal and a following spreader defining a chamber therebetween for receiving flowable lining material. The spreader is immediately followed by a cylindrical elongate platen formed of radiant-energy transparent m... | 05/28/1991 |
| 4959110 | Method for lining the inner surface of a cylindrical or domed cylindrical member with an elastomeric material A method for lining the inner surface of a generally cylindrical member or domed cylindrical member with an elastomeric material. A let-off head is provided within the member for applying a continuous strip of tacky elastomeric material to the inner surfa... | 09/25/1990 |
| 4950356 | Method of and apparatus for lining pipes A method of lining a pipe comprises the steps of laying hose means along the bottom of a pipe to be lined, the hose means having been filled with a predetermined quantity of settable lining composition, anchoring the hose means at each end along the botto... | 08/21/1990 |
| 4782786 | Device to fill and glue all kinds of depressions in inaccessible pipe conduits The device consists of a mastic material-filled pipe (27) set in a cylinder (24) which is revolvable around its longitudinal axis and secured there against displacement by means of locks (30). Inside the pipe (27) is a piston (31) which is acted upon by a... | 11/08/1988 |
| 4777905 | Apparatus for the repair of pipes A carriage (1) is guided coaxially to the axis (11) of a pipe (9) to be repaired by two sets (2, 3) of sprung rollers (4, 5). The carriage supports a drive motor (28), on the drive shaft (29, 30) of which is fixed a distributor means in the form of roller... | 10/18/1988 |
| 4745879 | Device for coating the internal surface of a pipeline with a cement-sand mixture A device for coating the internal surface of a pipeline with a cement-sand mixture, includes a mechanism (1) for applying a coating, systems (2 and 3) of feeding the cement-sand mixture and the working medium, hoses (4 and 5) a pull rope (6) and a winch (... | 05/24/1988 |
| 4741795 | Method of and apparatus for lining pipes A method of lining pipes comprises the steps of laying along the pipe (56) hoses (63) filled with constituent components of a settable resinous lining composition, axially slitting the hoses, conveying the constituent components to a mixing chamber (65), ... | 05/03/1988 |
| 4715313 | Pump liners and a method of cladding the same A method of cladding an internal cavity surface of a metal object is disclosed. The method includes the steps: (a) applying a powder metal layer on said internal surface, the metal powder including metal oxide or oxides, borides and carbides, (b) filling a pre... | 12/29/1987 |
| 4584963 | System for repairing joints in pipes laid underground A system for repairing joints in pipes laid underground, such as gas pipes, in their buried state, from their inside, to ensure their sealing. The system, in the process of pushing the resin used for repairing along the inside of the pipes by the pig, is to fi... | 04/29/1986 |
| 4568597 | Method of and an apparatus for coating a surface of a fiber blanket The invention relates to a method of coating a surface of a fiber blanket comprising forcing a plurality of probes through the fiber blanket until the probes extend beyond the surface to be coated, so that holes are formed in the fiber blanket, applying f... | 02/04/1986 |
| 4506624 | Trowel for smoothing mortar on the interior of a pipe A trowel for smoothing mortar coated on the interior wall of a pipe, including an elastic member for receiving pressurized air and inflating to a diameter less than the interior of the pipe. A blade assembly is connected to and extends from the elastic me... | 03/26/1985 |
| 4398492 | Apparatus for applying an extruded strip to an inside tire surface Apparatus for gripping a tire bead, moving the tire vertically and axially over an extruder nozzle die to a position within the tire chamber where a continuous extruded strip is applied to an inside surface of the tire as the tire is rotated. The extruded... | 08/16/1983 |
| 4397890 | Method of lining pipes A method of lining a large pipe and small pipes branching therefrom with a seal composition, in which the pipes are lined as connected together, and the large pipe or the small pipes are lined first. The portion of the seal composition forced into the sma... | 08/09/1983 |
| 4397891 | Process and apparatus for internally coating a tubing A process and apparatus for coating the interior of a fiber-reinforced tube formed of cellulose hydrate in which a tube filled with a coating liquid is passed through a special conveying and pumping device which also serves to replenish the coating liquid... | 08/09/1983 |
| 4394408 | Apparatus and method for applying adhesive to a container edge portion An apparatus and method for applying an adhesive to the edge of the can by inserting the can into the adhesive to its top surface and rotating the can 360° or more, then past the edge of a doctor roll to remove excess adhesive in a selected region and th... | 07/19/1983 |
| 4393805 | Pipeline pig for lining pipe lines A pipeline pig for lining pipe lines with an internal coating of a solidifying plastic composition with which the pipe line is spread by means of the pig, the pipeline pig having at least one spreader body and at least one forward and one rear guide body.... | 07/19/1983 |
| 4387662 | Corrugated pipe adhesive applicator apparatus Apparatus for coating selected portions of the troughs of a corrugated pipe within an adhesive includes a support disposed within the pipe with a reservoir containing the adhesive disposed on the support. A pump, including a spout, is utilized for supplyi... | 06/14/1983 |
| 4377984 | Connecting assembly for pipe lining equipment An assembly for connecting pipe lining machine to a device to be pulled through a pipeline or the like is provided in which a coiled connector spring is attached between the device to be pulled through the pipe and the lining machine. A keeper member fixe... | 03/29/1983 |
| 4372245 | Device for coating internal threads of a fastener A device for coating the internal threads of a fastener includes a rotatable base for holding the fastener, and an applicator having a discharge orifice extending through its side wall which contacts the internal threads at a single point of tangency, the... | 02/08/1983 |
| 4357371 | Process for the manufacture of tubular packaging sheaths having a coating on the inside, and apparatus for carrying out the process Disclosed is a process for forming an uninterrupted coating of uniform thickness on the inside of a length of tubing which comprises the steps of forming a loop of tubing with a downwardly inclined portion and an upwardly inclined portion; filling the cav... | 11/02/1982 |
| 4353939 | Process for the manufacture of tubing based on cellulose hydrate having a coating on its inside and apparatus for carrying out the process Disclosed is a process for coating the inside of a length of tubing comprising the steps of forming at least one loop of tubing with a downwardly inclined portion and an upwardly inclined portion; filling the cavity of the tubing forming the loop with a c... | 10/12/1982 |
