Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8176942 | Closing device for a vacuum user system of an aircraft A closing device for a vacuum user system or vacuum toilet system of an aircraft that makes it possible to quickly open and close a pipe connection piece in a vacuum user system or in a vacuum toilet system of an aircraft. The closing device comprises a cover; a clo... | 05/15/2012 |
| 8171960 | Plug with gripping means The present invention regards a plug (2) for scaling off a pipeline (1), comprising a main body (3), scaling means (6) and gripping means (5) arranged circumferentially around the main body (3) and actuation means (4)... | 05/08/2012 |
| 8171961 | Plug structure A plug structure for sealing an opening end portion of a circular fluid passage formed in a housing comprises a plug being equal in resistance against deformation to, or smaller than, the housing and having an annular flange portion formed on an end portion of a cir... | 05/08/2012 |
| 8141590 | Arrangement for sealing an end section of a tube or of a tubular vessel The invention relates to an arrangement for sealing an end section of a tube or of a tubular vessel with a sealing plate arranged pointing toward the tube, and a front plate arranged pointing away from the tube. A peripheral seal is arranged in the outer region of t... | 03/27/2012 |
| 8141591 | Plug assembly with moveable mounting members A plug assembly 10 includes a housing 14 and one or more covers 16 coupled to the housing. The plug assembly 10 includes at least one mounting plate 12a, 12b positioned between the housing 14 and the cov... | 03/27/2012 |
| 8113241 | Resilient test valve member A method and apparatus for pressure testing a plumbing system, includes a resilient body having a body diameter. The resilient body is adapted to elastically deform by when passing through a service opening that is smaller than the body diameter and then resiliently... | 02/14/2012 |
| 8104517 | Resilient plug apparatus and method of use Various embodiments of the present invention provide apparatuses and methods for stopping the flow of media within a pipeline. The pipeline generally includes one or more pipes connected end-to-end, where each of the pipes has a longitudinal axis with an annular wal... | 01/31/2012 |
| 8061388 | Chemical barrier plug assembly and manufacturing and dislodgement methods for hydrostatic and pneumatic testing A barrier plug assembly for incorporation into a lower portion of a plumbing installation for supporting a column of test water during inspection of the installation includes a tubular plumbing segment for sealingly securing between and in fluid communication with o... | 11/22/2011 |
| 8042574 | Plug with expandable packer element The present invention relates to an arrangement for use with a plug (1) for sealing against an inner wall of a pipeline (30), comprising a main body and sealing means, which sealing means comprises an annular packer element (7), arranged between... | 10/25/2011 |
| 8042575 | Spring energized plug A self-contained cartridge sealing plug that does not require any torque settings. The sealing plug includes a cylindrical-shaped plug body that carries an O-ring seal. The bottom of the plug body has a hole where a spring is inserted and retained by a spring retain... | 10/25/2011 |
| 8037904 | Anchor mount An anchor mount formed of a stopper having a thrust flange joined to a first end of a stem portion with an axial bore extending there through and a centering portion inclined between an overhanging portion of the flange and the stem portion; a part-spherical coupler... | 10/18/2011 |
| 8001995 | End cap for a hydraulic fitting An end cap for an open end of a hydraulic fitting having a peripheral flange can be provided by a threaded ring and a threaded insert. The threaded insert can be rotatably engaged with the threaded ring to move axially back and forth. The threaded insert has a forwa... | 08/23/2011 |
| 7958911 | Shipping plug A shipping plug is disclosed herein. The shipping plug is formed from a cylindrical member that is configured to be operatively disposed within a bore of a component to create a seal therewith. The cylindrical member is a resilient material, and has an upper wall, a... | 06/14/2011 |
| 7954515 | Combination cap and plug assembly A combination cap and plug assembly. A cap portion of the assembly is used to stop flow of material through a male coupling, and a plug portion is used to stop flow of material through a female coupling. The combination cap and plug assembly includes a tether that a... | 06/07/2011 |
| 7913717 | Fast acting gate The invention can be used in pipelines, any devices, man holes and arrangements, at any pressures and working conditions for closable large-diameter pipes. The object of the present invention is to improve serviceability of a gate. The inventive gate comprises a lid... | 03/29/2011 |
| 7909065 | Pre-tensioned sealing means arrangement The present invention regards a barrier plug system (3) for sealing off a pipe (1), comprising a plug body, a first and a second end plate surface (11, 31) arranged on opposite sides of the plug body and at least one circumferential sealing mean... | 03/22/2011 |
| 7878219 | Fluid system coupling with pin lock A fluid system component is provided that includes first and second elements configured to be removably engaged with each other and defining a fluid passageway when engaged. The first element defines at least one groove. Correspondingly, the second element includes ... | 02/01/2011 |
| 7878220 | Pipe plug with a locating appliance A pipe plug provides a water-tight seal and expedites locating of non-metallic pipes. The pipe plug includes a hollow body member adapted for being received by an associated piping member of a variety of inner dimensions, and for being engaged with it. The hollow bo... | 02/01/2011 |
| 7874318 | Plumbing test cap with pivotal latch A plumbing test cap has a body with a bore extending from a first end which is mountable over a stub-out having a surface engagement feature. The body has a closed second end. A retainer is carried on the body for transverse movement from a first position allowing m... | 01/25/2011 |
| 7866346 | Mud pump receiving flange and plug retainer A plug retainer and receiving flange for a mud pump fluid module pipe comprising a plug retainer and a receiving flange. The threads of the plug retainer are configured into at least two segments that are axially disposed opposite each other upon the periphery of th... | 01/11/2011 |
| 7845371 | Gas connector socket with cover The invention relates to a gas connector socket with at least one inlet port for connecting a locally fixated gas supply line, with at least one outlet port for connecting a gas connector plug, with a housing receiving the at least one outlet port, and with at least... | 12/07/2010 |
| 7766046 | Plugging system for use during an offshore pipeline laying operation A plug for use during a pipeline laying operation for sealing off sections of the pipeline in case of water ingress. A sealing and gripping assembly is formed of slip segments around a partially conical shaped surface, the slip segments being moved by a piston/cylin... | 08/03/2010 |
| 7766047 | Telescoping double blocking pipe plug A plugging device for double blocking a section of pipeline or piping and method for its use includes a first and second sealing element and at least one cylinder that is extendable along an axial direction of the pipe between a retracted first position and an exten... | 08/03/2010 |
| 7762282 | Closure for a plumbing cleanout A closure for a plumbing cleanout includes a riser pipe having an interior surface defining an interior bore. A cylindrical plug is provided having a first end, a second end, and an exterior surface. A peripheral flange is positioned at the second end of the cylindr... | 07/27/2010 |
| 7748411 | Insertable piggable plug system The present invention is a plug system having a plug for insertion into a pipeline, wherein the plug system is insertable via a fitting attached to the pipeline. A pre-drilled aperture of the pipeline positioned normal to the cylindrically-shaped pipeline may interf... | 07/06/2010 |
| 7717136 | Pipeline closing apparatus A pipeline closing apparatus comprises a lid member attachable to a downstream end portion of a sluice valve, a first control shaft extending through the lid member, a second control shaft extending through the first control shaft, an elastic annular member disposed... | 05/18/2010 |
| 7677270 | Plug for a hydraulic fitting A hydraulic or other type of high-pressure hose fitting can be temporarily sealed using a special type of plug. The plug is made of a rubber like material and can be used both as a male plug or a female plug. The plug contains a plug body with a tapered end portion ... | 03/16/2010 |
| 7665485 | Hatch for the opening and closing of pressurised pipes, in particular for the opening and closing of branch pipes for the introduction of pipe cleaning and inspection apparatus A closing system for pressurized pipes, includes an annular supporting structure, designed to be secured to one end of the pipe, a closing hatch mounted on the annular support, and elements for locking the hatch including a locking ring inserted into an annular cavi... | 02/23/2010 |
| 7644734 | Safety cap for couplings and fittings The present invention is a male and female safety cap to protect hose and liquid transport fittings and the hand of the operator. The male safety cap has a circular disk with a diameter larger than the female fitting and a loop handle. The female safety cap has rais... | 01/12/2010 |
| 7640949 | Sealing device The invention provides a plug for sealing an end of a duct. The plug includes a sealing member for sealing against an interior surface of the duct, and gripping means having one or more teeth for gripping the interior surface of the duct. The plug may include a pair... | 01/05/2010 |
| 7631664 | Threaded expansion plugs A plug for sealing a bore in the wall of a high-pressure fluid container is provided. The plug includes a sloping surface adapted to seal at an edge between surfaces of different diameter. A method for sealing the bore by forming a socket in the wall that is adapted... | 12/15/2009 |
| 7624759 | Shower drain test plug A test plug for a shower drain includes a threaded portion having external threads sized to be received in an threaded aperture of a drain. An extension extends downwardly from the threaded portion to a cylindrical sealing portion which is connected to the extension... | 12/01/2009 |
| 7614426 | Cap for connector A cap for a connector which can fill a male luer connector with only a fluid, such as a medicinal fluid, without leaving gas in the male luer connector. The cap for the connector comprises the cap body, the sliding part movable relative to the cap body, and the air ... | 11/10/2009 |
| 7607456 | Plug for hydrostatic testing of flexible polymeric pipe or tubing A manually installable polymeric plug useful for hydrostatic pressure testing of polymeric pipe or tubing having a flexible wall, the plug having a substantially rigid polymeric handle with a threaded cylindrical section that is engageable with the polymeric pipe or... | 10/27/2009 |
| 7597117 | Compression plug system for tubes and pipes A compression plug system for plumbing, comprising a plumbing pipe, a slip nut, a seal ring, and a plug. The plug comprises a head having a closed end, and an external threaded portion having an edge. Extending from the head is the external threaded portion that ext... | 10/06/2009 |
| 7588052 | Closure plug A closure plug for bores, including a cylindrical jacket of through hardened steel, whose outer peripheral surface features a toothed design. ... | 09/15/2009 |
| 7571743 | Gravity flow isolation device A device for isolating at least a portion of a pipe from fluid flowing therethrough. The device having a body (1) that is at least partially insertable into the pipe. An external surface of the body is adapted to abut with an inner surface of the pipe to subs... | 08/11/2009 |
| 7549447 | Pressure valve inlet cover system A pressure cap having a generally cylindrical hollow body with a semispherical cap having an orifice defined within and passing through said cap, a valve stem passing through and of smaller cross-section than the orifice, a valve member supported by the valve stem w... | 06/23/2009 |
| 7533698 | Trackable, identifiable foreign material exclusion device A foreign material exclusion device which is adapted to be utilized in tubes, pipes, or the like to prevent entry of debris into a potentially sensitive area of an assembly, such as a turbine assembly utilized in a power plant. In one embodiment, the device is adapt... | 05/19/2009 |
| 7533699 | End cap clamping and sealing system The present invention provides an end cap sealing system for sealing an open piping end. The end cap sealing system includes an end cap having an end cap core. The end cap core has a generally cylindrical end with a circumferential groove formed around the exterior ... | 05/19/2009 |