Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8042840 | Sealed flexible coupling with torsion acceptance A coupling has respective support elements extending respectively from each coupling end toward the other, but not directly connected to each other. Radially oriented ends of these elements define a pocket capturing a cushion therein. A non-metallic bellows operably... | 10/25/2011 |
| 8033576 | Pipe guide for expansion joint A pipe guide is described for providing axial alignment to two pipes connected by an expansion joint. The pipe guide comprises a pipe guide sleeve that covers the expansion joint and is connected at its first end to the first pipe. It also comprises a guide ring tha... | 10/11/2011 |
| 7604259 | Damper root ring A damper that provides damping to the motion caused by flow induced vibration of a bellows type expansion joint. The damper is at least partially filled with a damping medium and located at a root region of the bellows type expansion joint convolutions. The damper i... | 10/20/2009 |
| 7562908 | Flexible fluid conduit joint and method A flexible fluid conduit joint includes two or more flexible sections that preferentially bend about respective preferential bend axes of the sections. The sections each include a flexible bellows coupled at longitudinal ends to a pair of annular collars, and a pair... | 07/21/2009 |
| 7506896 | Flexible joint with bellows A flexible joint with bellows for coupling two tubular elements together for passing fluid in a flow space and presenting a main axis that is constituted by the axis common to the tubular elements when they are in their aligned position, and including at least one f... | 03/24/2009 |
| 7484773 | Self purging expansion joint Self purging expansion joint can include first annular seal sleeve connecting bellows to first conduit and second annular seal sleeve connecting bellows to second conduit. Flow-restricting orifice(s) can allow a higher pressure external fluid to flow through the ann... | 02/03/2009 |
| 7398798 | Flexible sleeve liner for a convolute duct An air induction system wherein the outlet air assembly includes a sleeve-lined convolute duct. A sleeve liner is disposed within a convolute duct which spans the convolutes, wherein an attached end of the sleeve liner is attached to a non-convolute portion of the c... | 07/15/2008 |
| 7364002 | Vehicle underbody structure At the underside of a vehicle body, a fuel tank and an exhaust muffler are disposed alongside of each other along a vehicle body longitudinal direction, with a drive shaft being disposed between the fuel tank and the exhaust muffler. The front and rear of the fuel t... | 04/29/2008 |
| 7344094 | Flexible neck faucet sprayer A sprayer for attachment to the spout of a faucet. The sprayer comprises a coupling, a spray head through which fluid may be directed for expulsion and a neck portion. The coupling releasably secures the sprayer to the spout of a faucet. The neck portion connects th... | 03/18/2008 |
| 7341283 | High temperature flexible pipe joint For continuous high temperature operation over a service life in excess of twenty years, a flexible pipe joint includes various features that tend to reduce the temperature of the load-bearing flex element or reduce strain in the warmer elastomeric layers of the fle... | 03/11/2008 |
| 7331612 | Low profile tension style flexible joint A low profile tension style flexible joint for pneumatic ducting may be useful as, for example, a joint for aircraft engine pneumatic ducting. The joint of the present invention may be used at both ends of a duct that passes high temperature (up to about 1200° F.) ... | 02/19/2008 |
| 7314067 | Design and manufacturing method for multi-material tube structures The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes... | 01/01/2008 |
| 7290771 | Bellows seals for thermoacoustic devices and reciprocating machinery A bellows has an elongated bellows body defined by a flexible wall. The wall encloses a volume and extends between a first end and a second end. The body has a cross-sectional shape and a cross-sectional dimension that are generally constant between the first and se... | 11/06/2007 |
| 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 |
| 7267373 | Connecting structure for a fluid transport hose On the inner surface of a rubber hose body 12, a laminated hard resin layer 14 is formed to constitute a barrier layer that is impermeable to fluids. A clamping connection is made to hose 10 by a clamping member 24, which clamps the hose ... | 09/11/2007 |
| 7264280 | Flexible tube for an exhaust pipe of an automobile A flexible tube for an exhaust pipe for an automobile includes a bellows member (10) corrugated to have alternate ridges (11) and furrows (12) along its outer periphery; outer braids (20) provided to enclose the bellows member (10)... | 09/04/2007 |
| 7198304 | Fluid line connector with intermediate smooth surface A fluid line connector includes a length of tubing having a plurality of corrugations formed therealong between opposing tubing ends. A non-corrugated section is disposed along the length of tubing between the opposing tubing ends such that a portion of the pluralit... | 04/03/2007 |
| 7194829 | Labeler for pipes, conduits, tubes, and rods A pipe or conduit labeler includes a saddle leg having an inside diameter equal to or slightly smaller than an outside diameter of a pipe or conduit to be labeled. The saddle leg is molded to a saddle stem which in turn is molded to a sign plate. A user either write... | 03/27/2007 |
| 7163206 | Fluid seal A jet pipe assembly containing at least one joint provided with a seal assembly to isolate, substantially, the fluid flowing in the pipe from the fluid external to the pipe. The dynamic member of the seal assembly is provided with both radial and cylindrical sealing... | 01/16/2007 |
| 7147050 | Recuperator construction for a gas turbine engine A counter-flow recuperator formed from annular arrays of recuperator core segments. The recuperator core segments are formed from two opposing sheets of fin fold material coined to form a primary surface zone disposed between two flattened manifold zones. Each prima... | 12/12/2006 |
| 7143788 | High temperature line expansion installation with bellows An flexible coupling is shown for an insulated piping system of the type used to convey steam and other high temperature fluids. The coupling uses a flexible bellows and additional insulating and joining components to couple conventional lengths of insulated pipe. T... | 12/05/2006 |
| 7108294 | Composite pipe assembly and components A plastic coupling for joining two metal pipe sections end-to-end to form a pipe assembly. A first plastic spigot cuff is formed along the periphery of the end of the first pipe and a mating second plastic bell cuff is formed along the periphery of the end of the se... | 09/19/2006 |
| 7100947 | Tubing and connector system A tubing and connector system including a plastic tubing or hose having a helical outer surface, a plastic lock nut having a helical internal surface with the same thread pitch as the pitch of the tubing outer surface, and a fitting having several barbs formed on it... | 09/05/2006 |
| 7103520 | Methods and apparatus for model based shrouded bellows stiffness determinations A modeling system predicts natural frequency responses in tube sub-systems including shrouded bellows components. The system determines a stiffness multiplier from input values and uses the determined flexibility factor to determine the natural frequency responses. ... | 09/05/2006 |
| 7083204 | Composite metal pipe coupling and assembly A coupling for joining metal pipes or pipe sections end-to-end to form a pipe assembly. A plastic cuff is formed on one of the pipe ends and a mating, second plastic cuff is formed on the other pipe end. In one embodiment, a wire hoop is mounted over each pipe end, ... | 08/01/2006 |
| 7074275 | Apparatus for treating workpieces The invention relates to an apparatus for coating hollow bodies, e.g. plastic drinks bottles. It is an object of the invention to provide an apparatus for treating workpieces which operates reliably and with low maintenance, can be flexibly adapted to the user's req... | 07/11/2006 |
| 7069953 | Plastic corrugation corrugated pipe with monolithic container The invention relates to a plastic corrugation corrugated pipe with corrugation peaks and corrugation valleys for household apparatus or motor vehicles, which pipe has at least one connecting portion and, in accordance with the invention, a container monolithically ... | 07/04/2006 |
| 7065873 | Recuperator assembly and procedures A construction of recuperator core segments is provided which insures proper assembly of the components of the recuperator core segment, and of a plurality of recuperator core segments. Each recuperator core segment must be constructed so as to prevent nesting of fi... | 06/27/2006 |
| 7066495 | Exhaust bellows for dynamic torsion control in an exhaust system A flexible bellows tube connecting pipes in a system such as a vehicle exhaust system. Various embodiments are disclosed, with each including two conduit sections having mating corrugations that overlap to provide a seal while allowing the two sections to rotate in ... | 06/27/2006 |
| 7052050 | Elastomeric expansion joint and a wiring support member Provided are elastomeric expansion joints for coupling tubes and, particularly, elastomeric expansion joint used for absorbing axial, lateral, angular movements and vibrations to which the tubes are subjected, or when these tubes are coupled to pieces of equipment t... | 05/30/2006 |
| 7052210 | Inlet collar for highway culverts A highway culvert inlet collar is disclosed having a plate member and a pipe adapter. The plate member has a front face, a rear face, a peripheral side edge intermediate the front face and the rear face, and a tapered inlet face portion adjacent the front face. The ... | 05/30/2006 |
| 7040666 | Full port externally gimballed joint A gimballed joint includes an annular bellows seal circumscribed about a joint centerline mounted within forward and aft shrouds having clevises with lugs and a threaded hole disposed through each of lugs. A ring circumscribed about the lugs has counterbored holes. ... | 05/09/2006 |
| 7032621 | High temperature line expansion installation with release agent A high temperature pre-insulated piping system is shown which can withstand conveyance temperatures in excess of 250° F. The piping system includes a first and second length of insulated and jacketed pipe. Each pipe length includes an inner metal pipe having an int... | 04/25/2006 |
| 7017614 | Downspout extension A repositionable downspout extension is formed as an integral blow molded plastic component having three distinct sections. A downspout connector end merges with a corrugated extendible middle section which terminates in a drainage pipe connector. The downspout conn... | 03/28/2006 |
| 7007982 | Tube fitting A tube fitting capable of absorbing vibration and shock resulting from a high pressure fluid passing through the tube fitting while it is used includes a connection head, a connection nipple, and an intermediate connection member. The connection head and the connect... | 03/07/2006 |
| 7004508 | Flexible drain element A flexible drain element is used in place of a trap and has a section that is flexible with a stiffness that is selected to make clearing blockages easy and expeditious. ... | 02/28/2006 |
| 6996977 | Decoupling hose for a motor vehicle exhaust system A method of avoiding damage to a decoupling hose mounted between two tubes of a motor vehicle exhaust system, said hose comprising a deformable inner portion, an outer sealing leakproofing portion in the form of a continuous and leaktight sleeve having a flexible ce... | 02/14/2006 |
| 6994354 | Vibrationally decoupling gasket A gasket includes a fist sealing portion, a second sealing portion, and an elastic arm sealingly connecting between the two. The first sealing portion sealingly engages a first member and the second sealing portion sealingly engages a second member. The elastic arm ... | 02/07/2006 |
| 6993819 | Method of producing a joint between a corrugated tube and a coupling A method of producing a joint between the end of a helically corrugated metal tube and a coupling, whereby a support ring (2) is screwed into the end of the helically corrugated metal tube until a smooth walled area (2b) remains both inside the ... | 02/07/2006 |
| 6948744 | Exhaust vibration decoupling connector An exhaust-vibration decoupling connector has an inlet tube (1) extended downstream from a decoupler inlet (2) to an inlet-tube step (22). The inlet-tube step includes a radially inward extension of the inlet tube to a damper seat (23) th... | 09/27/2005 |
