Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7887099 | Compound tube and method of producing the same A compound tube is disclosed that includes an outer tube and an inner tube disposed in the outer tube. A passage is defined between the outer tube and the inner tube. Various methods of joining the outer tube to the inner tube are disclosed. ... | 02/15/2011 |
| 7722088 | Light and reinforced undersea coaxial pipe element A unit element of undersea pipe, in particular for providing a bottom-to-surface connection, constituted by an assembly of two coaxial pipe elements of the PiP type (1) presenting an inner pipe element (2) and an outer pipe element (3) coaxial t... | 05/25/2010 |
| 7625014 | Dual fluid connector A connector includes a rear body portion and a front body portion. The front side of the rear body portion, and the front body portion disposed therearound, are for fluidly coupling to first and second sources of pressurized fluids in a co-axial manner. The rear sid... | 12/01/2009 |
| 7399002 | Cryogenic seal for vacuum-insulated pipe expansion bellows A cryogenic seal for vacuum-insulated pipe systems where the pipe system includes an inner pipe connected to an outer pipe by a bellows. The seal prevents cryogenic liquid from leaking from the inner pipe into the annular vacuum space between the inner and outer pip... | 07/15/2008 |
| 7392840 | Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs A method for sealing an annulus defined between an outer casing and an inner casing, the method having steps as follows: fastening a lock ring to an anchor base, wherein the lock ring comprises a threaded fastener of the lock ring to the head; positioning the lock r... | 07/01/2008 |
| 7353868 | Wireline coupler A wireline coupler, for use in oil wells and gas wells to connect a perforating gun to the wireline from which the perforating gun is suspended, is designed to eliminate jamming of the wireline between the casing and the perforating gun when the perforating gun is p... | 04/08/2008 |
| 7350823 | Double pipe forked part structure and method of making the same A forked part structure of a double pipe has an outer pipe, an inner pipe, a branch pipe and an open end portion of the outer pipe. The open end portion of the outer pipe has a substantially tubular inner pipe supporting portion to which the inner pipe is brazed, an... | 04/01/2008 |
| 7350562 | Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal r... | 04/01/2008 |
| 7347283 | Using a rotating inner member to drive a tool in a hollow outer member A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole too... | 03/25/2008 |
| 7322407 | Wellhead isolation tool and method of fracturing a well A wellhead assembly is provided including a casing and a tubular member mounted over the casing. A flange extends from the tubular member. A generally elongated annular member is provided in the tubular member. The generally elongated annular member has a first end ... | 01/29/2008 |
| 7322378 | Semiconductor apparatuses and pipe supports thereof A semiconductor apparatus with a modified pipe support. The apparatus comprises an outer pipe, an inner pipe, and a pipe support. The support comprises a seat and a support ring. The seat comprises a tubular portion for supporting an outer pipe at a top end. The sup... | 01/29/2008 |
| 7314239 | Tube device, and piping system including the tube device A tube 4 includes a casing 1 made of a fluororesin. The casing 1 surrounds a fluid tube 3 and lid members 5 each made of a fluororesin and include a receiving portion 8 for receiving one end portion of the tube 4. At ... | 01/01/2008 |
| 7284771 | Exhaust gas bellows expansion joint An exhaust gas bellows expansion joint for joining a first section and a second section of an exhaust pipe. The exhaust gas bellows expansion joint including a first corrugated pipe for conveying exhaust gas through the joint, a protective sleeve, which is inserted ... | 10/23/2007 |
| 7267180 | Multi-lock adapters for independent screwed wellheads and methods of using same A lockdown flange for use with an independent screwed wellhead includes an annular body having a center passageway with an internal diameter at least as large as a passageway through the wellhead. The lock down flange may be used to construct a multi-lock adapter fo... | 09/11/2007 |
| 7207603 | Insulated tubular assembly A tubular assembly 10 is disclosed for passing fluids within a hydrocarbon recovery well. The tubular assembly 10 has an insulated connection 12 between insulated tubing segments 14, 16. Tubing segments 14, 16 are connected via a t... | 04/24/2007 |
| 7182158 | Drilling device comprising a rotational drive In a drilling device with a drive unit for rotation and advance the rod assembly has a plurality of pipe sections interconnected by means of plug-type connections torque proof in both directions. A tension rod protrudes through the interior of the rod assembling. Th... | 02/27/2007 |
| 7159652 | Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal r... | 01/09/2007 |
| 7152700 | Dual wall drill string assembly A coil tubing or jointed dual wall drill string assembly for subsurface drilling. The drill string assembly includes a metallic outer tube having an outer tube first end and an outer tube second end opposite the outer tube first end. The assembly also includes a fle... | 12/26/2006 |
| 7134514 | Dual wall drill string assembly A dual wall drill string assembly for subsurface drilling. The drill string assembly includes a metallic outer tube having an outer tube first end and an outer tube second end opposite the outer tube first end. The assembly also includes a flexible, substantially no... | 11/14/2006 |
| 7125207 | Tool holder with integral coolant channel and locking screw therefor A cutting tool including a cutter body and a locking screw. The cutter body has one or more pockets for receiving one or more cutting inserts and at least one channel for delivering coolant from a milling machine to the cutting inserts. ... | 10/24/2006 |
| 7090033 | Drill string shutoff valve A valve assembly connects into a drill string for opening and closing at least one inner passage within the drill string of the drill string. The valve assembly includes an annular valve assembly carried in an annular passage that moves between the open and closed p... | 08/15/2006 |
| 7086668 | Coupling assembly A coupling for a double tube is configured to connect with the double tube. The double tube includes an outer tube for a first fluid to flow therethrough. The double tube includes an inner tube provided inside of the outer tube and having an end protruding from the ... | 08/08/2006 |
| 7077165 | Double pipe A double pipe has an outer pipe and an inner pipe that is formed in a spiral or wavy configuration and is held by an inner circumferential face of the outer pipe. ... | 07/18/2006 |
| 7032677 | Multi-lock adapters for independent screwed wellheads and methods of using same A lockdown flange for use with an independent screwed wellhead includes an annular body having a center passageway with an internal diameter at least as large as a passageway through the wellhead. The lock down flange may be used to construct a multi-lock adapter fo... | 04/25/2006 |
| 7025152 | Using a rotating inner member to drive a tool in a hollow outer member A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole too... | 04/11/2006 |
| 7021670 | Joint for double pipe and brazing method thereof A joint for joining a double pipe, which is provided with an outer pipe for transfer of a first fluid, and an inner pipe for transfer of a second fluid. The joint is provided with a flange including a first through bore and a second through bore, a branch portion an... | 04/04/2006 |
| 6971682 | Coupling assembly A coupling assembly for fuel transfer includes a first inner conduit attached to a first ferrule adapter and a second inner conduit attached to a second ferrule adapter. An inner conduit coupling engages the first inner conduit sealing mechanism and the second inner... | 12/06/2005 |
| 6848720 | Shrouded fluid-conducting apparatus A shrouded fluid-conducting apparatus is provided that includes at least one outer conduit and at least one inner conduit disposed within the outer conduit. Preferably, the shrouded fluid-conducting apparatus further includes at least one shrouded end fitting dispos... | 02/01/2005 |
| 6721381 | Seal arrangement for in-core instrument housing A seal arrangement for providing a seal between a nuclear reactor in-core instrument housing and an instrument contained within the housing includes a lower seal assembly surrounding an outer portion of the in-core instrument housing, an upper seal assembly surround... | 04/13/2004 |
| 6609731 | Connector A connector for connecting the lower tubular member of a tie-back to the upper tubular member of a subsea wellhead is disclosed as having a first sleeve carried about the upper member for axial reciprocation with respect thereto and extension over the low... | 08/26/2003 |
| 6073970 | Rotary transmission leadthrough for high pressures and high relative speeds A rotary joint for the transfer of pressurized working fluid between a stationary machine part and a rotating machine part, comprising a housing associated with the stationary machine part and a shaft associated with the rotating machine part. The shaft e... | 06/13/2000 |
| 5913336 | Gasoline dispensing hose An improved hose for dispensing gasoline at service stations has removable fittings at each end; the removable fittings receive spreaders, each of which in turn receive a bayonet fitting at an end of a vapor recovery tube. An internal collar on an inner p... | 06/22/1999 |
| 5813470 | Means for relieving load on stacked casing hangers Using additional load shoulders on wellhead casing hangers when multiple casing hangers are needed increases the capacity of the casing hangers to withstand loads. The shoulders of the casing hangers are not required to land simultaneously. Either the upp... | 09/29/1998 |
| 5355961 | Metal and elastomer casing hanger seal A casing hanger seal assembly utilizes a deformable metal body and elastomeric seal rings which are O-rings. The seal rings are located in grooves in unbonded condition in the metal body. The inner wall of the metal body is tapered, matching the taper on ... | 10/18/1994 |
| 5323854 | Tubing hanger seal for water wells A water well installation includes a seal to prevent animals, insects, roots, dirt, dust or other debris from entering the well through the annulus between the casing and tubing strings. The seal comprises a flat, resilient hard rubber disc having a centr... | 06/28/1994 |
| 5257792 | Well head metal seal A metal well head seal for sealing between inner and outer concentric well head components which includes a circular metal seal having a flat end and a tapered end and positioned between the inner and outer components. A forcing cone on one of the compone... | 11/02/1993 |
| 5236037 | Unitized wellhead system There is disclosed a unitized wellhead system wherein each of concentric well strings are suspended within a well bore by means of individual hanger mandrels installed within the bore of a single wellhead housing.... | 08/17/1993 |
| 5209521 | Expanding load shoulder A self-actuating, releasable weight support system includes a structural support member with a central bore therethrough. The bore has a recessed load support surface therein and a no-go shoulder on the inner periphery of the load support surface. A weigh... | 05/11/1993 |
| 5181748 | Quick-acting coupling and quick-acting coupling assembly A quick-acting coupling for the fluid-tight connection of two parts, each with sealing elements with sealing faces, is provided with at least one sealing face having a flexible seal, as well as a coupling for connecting the parts in such a way that they d... | 01/26/1993 |
| 5125691 | High pressure gas pipeline having concentric tubes and vent tubes High pressure gas pipeline is intended for economic transportation of fluids in gaseous or liquid condition. The pipes are coaxially disposed, so that the first axial pipe 1 and the second axial pipe 2 are supported by the first ring 6 forming the first s... | 06/30/1992 |
