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8176941 |
Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
An apparatus is disclosed for reducing pressure and velocity of a particulate-laden, supersonic vent gas stream from a pressure vessel such as an autoclave. The apparatus includes a diverging duct...
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8025080 |
Orifice plate alignment device
A tool for supporting and centering a flat circular orifice plate flow meter between two pipe flanges that have circumferentially spaced apart circular flange bolt holes that lie on a bolt circle...
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7870873 |
Dual chamber orifice fitting isolation valve
Apparatus and methods for operating a dual chamber orifice fitting. The dual chamber orifice fitting comprises a body having a lower chamber and a top having an upper chamber. An aperture connects...
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7841365 |
Apparatus for controlling flow through a conduit
A conduit apparatus includes a slide plate between faces of flanges connecting a first and second conduit portions. Upper and lower fasteners extend through bolt holes in the flanges above and...
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7806145 |
Housing for a flow conditioner
There is provided a housing for a flow conditioner. The housing comprises a body having first and second pipe connections, a flow passage between the pipe connections, a carrier receiving cavity...
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7731242 |
Pipe clamp with built in test fitting
A pipe clamp includes a deformable cylindrical sealing sleeve having a continuous side wall with a slotted opening extending 180 degrees around the circumference of the side wall adapted to receive...
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7654287 |
Dual slide gate valve and method for using same
A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a...
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7469709 |
Three-wedge double block isolation chamber
A three-wedge double block isolation chamber including a body with an internal chamber bounded by an inlet and an outlet having a wedge assembly positioned in the chamber. The wedge assembly may be...
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6871666 |
Bi-directional dual chamber orifice fitting
Methods and apparatus for a bi-directional dual chamber orifice fitting comprising a body with a chamber in fluid communication with a flow bore. The fitting also comprises an orifice supported by...
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6843483 |
Seal ring for orifice plate
A seal ring for an orifice plate includes a metal annular body having an outer peripheral edge and an inner peripheral edge. A first sealing element retainer is integrally formed with and extends...
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6840282 |
Mechanisms to set a hollow device into and to retrieve said hollow device from a flow pipe
A method to set a hollow device into an undersea flow pipe uses a flexible pig driven by a flow flowing into said flow pipe to displace a hollow device to a point where a stop means halts a...
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6655413 |
Method and apparatus for pressure testing pipe lines
A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a...
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6116262 |
Plumbing coupling and method of use
A plumbing coupling (20) for connecting two lengths of pipe (500) includes a cylindrical body (22) having a circumferential through-slit (32) extending part of the way around its perimeter (28). A...
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6085793 |
Safety blinding device
This invention is a safety blinding device that includes a body and bolt clamps for blinding pipes. The body includes a plate and extensions that extend radially from the plate. Preferably, there...
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5967168 |
Method of connecting branch pipe
A method of connecting a branch pipe to an existing main pipe is disclosed. The method includes the steps of: connecting and communicating a branch-pipe joint having a branching pipe portion to an...
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5660199 |
Method and valve for hot tapping a line
A method of hot tapping a pipeline includes the step of providing a valve having a valve body, a bonnet on the valve body, and means in the form of an isolating mechanism for enabling a user to...
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5582211 |
Purging blind
The present invention relates to a device which simplifies the isolation and purging procedures in a pipeline when the vessel requires entry for hot work. The invention provides a single component...
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5533760 |
Method and device for containing fluids
An apparatus and method for containing fluid about sections of joined fluid vessels is presented. The apparatus and method incorporate the use of a vessel wrapping substantially enclosing the area...
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5524663 |
Vacuum tube shut-off for power tools
The present invention provides a vacuum tube shut-off 10 for shutting off vacuum air flow between coating removal power tools 36 and a vacuum source 34. The vacuum tube shut-off 10 includes a...
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5494079 |
Stop-gate apparatus and methods of use thereof
The present invention relates to a stop-gate apparatus which is used as a means of opening and enclosing a hollow container or conduit carrier. The apparatus is comprised of a coupling body and an...
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5474103 |
Safety guard for orifice fitting device
A safety guard or lockout device (22) for a dual chamber orifice fitting device (1) having a removable orifice plate (4). In a normal position when the upper and lower chambers (8, 9) are equal in...
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5464036 |
Orifice fitting with venting passage and injection seal
An orifice fitting for measuring the flow of gas through a pipeline in which the orifice fitting has a body including a pair of opposing body plates that define a body chamber. Passing through both...
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5464035 |
Gate-type, side-ported, line blind valve
A walled body, has apertures formed in front and rear walls thereof in which resilient seats are set. The latter sealingly engage a plate-type gate, centrally apertured for alignment with the...
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5327938 |
Adjustable orifice fitting carrier for a pipeline orifice fitting
An adjustable orifice fitting carrier assembly for an orifice fitting having a receptacle and being interposed in a pipeline. The carrier assembly includes a carrier body receivable in the...
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5318073 |
Orifice plate seal
An orifice installation for sealing a plate within a fitting is disclosed. The plate has a seal surrounding its outer circumference. The seal has a large base area of elastomeric material and an...
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5303740 |
Line blind assembly having disc and spacer ring selectively disposable between ends of tubular members
There is disclosed a line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing...
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5303742 |
Line blind assembly having interchangeable DISC
A line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing faces on the inner...
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5287730 |
Plumbing leakage test apparatus and method of use
An apparatus for testing a network of plumbing pipes for leaks comprises a pair of housings and a slidable test plate. The test plate is interposed between the housings to block fluid flow through...
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5232199 |
Sliding gate line blind
A sliding gate line blind for preventing fluids from traveling downstream from the blind including a body for connection to a pipeline, the body being open to the atmosphere and having an inner...
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5201344 |
Emissions eliminator blind
A pipe blind including a plate for connecting to the end of a pipe, the plate having an outer edge and two parallel faces, the plate having at least one channel therein, the channel being located...
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5160119 |
Slide plate adjustable orifice
An adjustable orifice comprising two half plates movable with respect to one another with adjusting holes for positioning the plates and flanges for holding the half plates in position.
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5050628 |
Tank entry procedure and apparatus
A tank accessing procedure is disclosed which allows for the replacement of a cover plate from a tank manway with an adapter having the capability of permitting access to the interior of the...
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4936381 |
Baffle for tubular header
The heat exchanger having a pair of elongated, tubular headers 10, 12 with tubes 14 extending between the headers 10, 12 and in fluid communication with the interiors thereof. Opposed slots 32, 34;...
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4895181 |
Gate valve
A packingless gate valve comprises a housing having two opposed resilient sleeve units that compressibly engage end to end in the valve open condition and engage opposite sides of the gate in the...
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4877083 |
Brazed heat exchanger and method of making the same
Poor brazed joints in a heat exchange caused by improper venting during the brazing process are eliminated through the use of a baffle for disposition in a slot 32 in a tubular header 10, 12 which...
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4765361 |
Ported gate valve
A gate valve formed with spaced parallel housing plates having axially aligned apertures which constitute a housing therebetween. Elastomeric sleeves line the apertures of the housing plates to...
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4749168 |
Damper plate sealing mechanism
In a sealing mechanism for a damper plate for a duct, seal members are made in the form of multi-convoluted sheet metal bellows, which engage each side of the damper plate around the periphery of...
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4742990 |
Gate valve
A sliding plate of a gate valve is guided in guide grooves formed in the region of a flow passage of the two-part gate valve housing. Each guide groove is bounded on both sides [upstream and...
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4724863 |
Flue gas seal
A damper mechanism of the slide gate type includes two curved seal segments positioned in back-to-back abutting relation to function as the primary flue seal. A seal door when closed extends...
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4712585 |
Orifice plate holder
An orifice plate holder for removeable insertion between juxtaposed flanges, the holder being formed of a plate body portion of rigid material having an opening therethrough, first and second...
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4671324 |
Jack bolt assembly
A jack bolt assembly for separating joined first and second flange members of a flange assembly including a longitudinally extending, generally rod-shaped jack bolt member adapted to extend between...
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4655241 |
Apparatus for sealing dampers
An apparatus for sealing a flow control apparatus, such as a guillotine damper, is disclosed. The apparatus of the invention is particularly intended for dampers or other flow control devices...
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4582296 |
Composite blade for dampers for ducts of large cross sectional areas
A damper for ducts of large cross sectional areas has an upstream seat surrounding the flow path and a blade which consists of upstream and downstream skins of a high quality nickel allow steel and...
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4561472 |
Sliding blade closure apparatus with inflatable sealing ring
A conduit closure apparatus, e.g., a damper, comprising a frame adapted for connection to a conduit in a position generally in registry with the conduit, a movable blade slidably mounted in the...
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4510959 |
Method for installation of an extended header
A header or other pipe under pressure which is blanked at its terminal end by a closure plate is extended without the need of a shutdown or the construction of bypass piping. In a series of steps...
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4503594 |
Method for fabricating an orifice fitting for a gas pressure differential-measuring system
An orifice fitting for a gas pressure differential-measuring system is constructed of a fabricated body. In the fabrication, two lengths of flared or flanged pipe are inserted through the internal...
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4491144 |
Flexible seals for sliding blade dampers
A sliding blade damper is provided with an improved seal arrangement around the blade withdrawal aperture. Two pairs of flexible sealing strips are used, mounted on either side of the aperture and...
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4478251 |
Orifice fitting seal assembly
An orifice fitting seal assembly is provided for use in an orifice fitting having a body structure defining a flow passage and opposed spaced sealing surfaces surrounding the flow passage. The...
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4474205 |
Sliding blade apparatus for closing conduits
A conduit closure apparatus comprising a main frame adapted for connection to a conduit in a position generally in registry with the conduit, a movable blade slidably mounted in the frame, means...
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4452278 |
Spectacle line blind with vent
A spectacle line blind includes a pivotable or rotatable spectacle plate having at one end a conventional full opening providing little obstruction to flow of liquid or gas. On the other end of the...
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