Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 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 below the slide plate. Right aid left fasteners extend through bolt holes... | 11/30/2010 |
| 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 flow path through the fitting extending along a longitudinal axis. The... | 02/02/2010 |
| 7213617 | Airflow divider with shutoff An air divider having a shutoff plate for converting row spacing on a seeding implement. A reversible shutoff plate has a closed position wherein one end of the plate extends through a slot and completely blocks a leg of a Y-shaped output end of the divider. By reve... | 05/08/2007 |
| 7114702 | Slide valve In a slide valve, especially for coating installations, for fluidic separation of two modules or chambers, interconnected through an opening, containing at least one slide plate, integrated in a housing transfixed by said opening, and which may be bidirectionally mo... | 10/03/2006 |
| 7017886 | Sliding gate valve A sliding gate valve, a sealing gasket for the valve, and a method of assembling the valve that may be used to govern the flow of a fluid such as a liquid or a gas. The sealing gasket may be characterized as having a circular portion, two connector portions, and a s... | 03/28/2006 |
| 6997041 | 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 flow path through the fitting extending along a longitudinal axis. The... | 02/14/2006 |
| 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 an orifice plate carrier that is selectably disposable in the bore. I... | 03/29/2005 |
| 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 from a first side of the body. A second sealing element retainer is in... | 01/18/2005 |
| 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 displacement of said hollow device, thereby setting said hollow device into ... | 01/11/2005 |
| 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 flow path through the fitting extending along a longitudina... | 12/02/2003 |
| 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 closure plate (36) is selectively insertable into the thro... | 09/12/2000 |
| 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 are three extensions that define three angles between each ... | 07/11/2000 |
| 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 existing main pipe; connecting a branch pipe to the branch... | 10/19/1999 |
| 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 seal the valve body from the bonnet for purposes of removing ... | 08/26/1997 |
| 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 purging blind with a body and purging channels which provi... | 12/10/1996 |
| 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 between the vessel sections so that substances carried by ... | 07/09/1996 |
| 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 vacuum tube 12 in vacuum air flow communication with the power ... | 06/11/1996 |
| 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 enclosure plate. The coupling body is affixed at one end t... | 02/27/1996 |
| 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 pressure, the guard (50) of the safety guard device (22) i... | 12/12/1995 |
| 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 seats, to define a portway through which to convey pipeline med... | 11/07/1995 |
| 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 body plates is an aligned flow passage for attachment to ... | 11/07/1995 |
| 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 receptacle of the fitting to hold a flat, circular orifice disc ha... | 07/12/1994 |
| 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 outer and inner periphery face. A central circumferential ex... | 06/07/1994 |
| 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 faces on the inner ends of the tubular members to be tightly ... | 04/19/1994 |
| 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 ends of the tubular members to be tightly engaged with sealin... | 04/19/1994 |
| 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 the housings when inspecting the pipe network for leaks. A... | 02/22/1994 |
| 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 portion and an outer portion, the body having an entrance pas... | 08/03/1993 |
| 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 in the interior of the plate and having an exit port and an... | 04/13/1993 |
| 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.... | 11/03/1992 |
| 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 enclosure, without any appreciable spillage of the contents of t... | 09/24/1991 |
| 5042572 | Mounting assembly for modular heat exchanger units A demountable connector assembly for a modular heat exchanger permits individual modules to be removed and replaced without replacement of the entire heat exchanger core. As applied to heat exchanger modules of conventional tube and header construction, a... | 08/27/1991 |
| 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; 34, 52; 34, 56, 58; extend generally transverse to the le... | 06/26/1990 |
| 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 valve closed condition. Each sleeve unit is a resilient ann... | 01/23/1990 |
| 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 is formed of a plate-like metal piece having first and sec... | 10/31/1989 |
| 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 provide an annular space between the sleeves. An elongated ga... | 08/23/1988 |
| 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 the duct. When the duct is moved from an open position to a... | 06/07/1988 |
| 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 downstream] by guide strips which extend into the flow channel. ... | 05/10/1988 |
| 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 between the upper ends of the seal segments and applies compress... | 02/16/1988 |
| 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 elastomeric washer members having an outer diameter greater tha... | 12/15/1987 |
| 4688597 | Gate valve A packingless gate valve is disclosed which includes a housing having opposed similar housing halves with resilient sleeve units which compressibly engage each other in the valve open condition and engage opposite sides of the gate in the valve closed con... | 08/25/1987 |
