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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7431321 | Trailer hitch assembly A trailer hitch assembly includes a receiver portion including a cylindrically-shaped cavity, a bushing member received within the cavity of the receiver portion, and a hitch member that includes a shaft pivotally received within the bushing member. At least a selec... | 10/07/2008 |
| 7390032 | Tubing joint of multiple orientations containing electrical wiring A tubing connection for coupling two or more joints of tubing sections is disclosed comprising a plug assembly and a socket assembly. The plug assembly has a plurality of splines and the socket assembly has a plurality of receptacles adapted to receive the plurality... | 06/24/2008 |
| 7252310 | Pipe coupling with tongue and groove sealing sleeve A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside the band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the co... | 08/07/2007 |
| 7226090 | Rod and tubing joint of multiple orientations containing electrical wiring A rod and tubing connection for coupling two or more joints of tubing sections comprises a plug and a socket. The plug has a plurality of splines and the socket has a plurality of receptacles adapted to receive the plurality of splines. The plurality of splines comp... | 06/05/2007 |
| 7100305 | Air dryer mounting assembly An improved system and method for mounting an air dryer is provided. The improved system and method employs a single centralized special fitting that secures the air dryer manifold to a reservoir. The bore in which the fitting is disposed is used to communicate air ... | 09/05/2006 |
| 7044507 | Assembly system for two tubular parts capable of being locked and unlocked The system permits two tubular parts (1, 2) to be assembled, the assembly being able to be locked or released, without a cumbersome device being required. It includes in particular a toothed crown (10, 20) on each of the two tubular parts (1, 2)... | 05/16/2006 |
| 7025393 | Pipe coupler with tongue and groove sealing sleeve A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside to band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the con... | 04/11/2006 |
| 6878194 | Remote purge drying unit for compressed gas An air dryer assembly and mounting bracket for mounting an air dryer to a vehicle. The air dryer assembly has a manifold and a canister which seal against the surface of the mounting bracket. Orientation pegs are provided along the sealing surface of the air dryer m... | 04/12/2005 |
| 6860525 | Breech lock connector for a subsea riser A riser assembly includes riser segments, each having threaded ends. A coupling nut is connected to the threaded end of the first riser segment. The threads of a second riser segment and a set of corresponding threads of the coupling nut are breech threads, which al... | 03/01/2005 |
| 6685237 | Torque resistant retrofit for compression metal face seals A retrofit fitting for an externally threaded male nut that carries a face seal. The fitting is an adaptor with an internal thread to be threaded onto the male nut and an external thread to receive a female nut. The fitting carries a plurality of blades t... | 02/03/2004 |
| 6659511 | Flexible fluid-transport pipe joint apparatus A flexible pipe joint apparatus for use in a fluid (e.g., water) transport pipe system for maximally absorbing an external force such as a compression or tensile force applied to a pipe of the fluid transport system due to an earthquake, differential sett... | 12/09/2003 |
| 6557905 | Anti-rotational submersible well pump assembly A submersible well pump assembly using threaded connections, the submersible well pump assembly having a first housing, a second housing, a clamp ring, and at least one anti-rotation member. The first housing has an end having an outer surface, an end fac... | 05/06/2003 |
| 6302451 | Quick-connect hose end couplings A quick-connect coupling for non-rotatably connecting a hose to a male stem member is made of plastic and includes a plastic fitting body on which is mounted a plastic annular cap having depending lugs. The cap is welded or otherwise fixed to the end of t... | 10/16/2001 |
| 6267417 | Angle setting pipe structure and its fabrication method An angle setting pipe structure and fabricating method that using a mechanical coupler for connecting two pipe members at a selected axial angle. The pipe members are being made by roll forming at one end to form an annular pipe groove which has a plurali... | 07/31/2001 |
| 6168213 | Connector and connection method A connector having a stinger and a receiver. The receiver is cocked by applying counter-acting torques to separate sections of the receiver. The counteracting torques compress a spring member. In the cocked position, the stinger is inserted into the recei... | 01/02/2001 |
| 6116658 | Counter torque tube connection A counter torque tube connection which couples a first tube and a second tube in turbine engine. The connection first tube includes a male connector component having a ballnose. The ballnose includes a plurality of protrusions. The connection second tube ... | 09/12/2000 |
| 6007107 | Fluid coupling for matching delivery and supply lines irrespective of the relative rotational positions of the coupling members A quick-connect coupling for interconnecting only matching fluid delivery and supply lines while preventing the inadvertent connection of mismatched lines where there are matched and mismatched delivery and supply lines. The coupling includes first and se... | 12/28/1999 |
| 5974648 | Outlet connector for oxygenator The present invention is direct to a method of connecting a piece of tubing to an outlet manifold of an oxygenator that prevents excessively high positive or negative pressure from forming in the oxygenator and helps to minimize the possibility of misiden... | 11/02/1999 |
| 5950744 | Method and apparatus for aligning drill pipe and tubing A pipe joint for self aligning a drill string, tubing string or casing string of the type comprising a plurality of drill pipe, tubing or casing sections arranged in end to end relation from a location above the ground to a lower location adjacent a tool ... | 09/14/1999 |
| 5906737 | Filter core system A filter core unit comprising various number of segments having a wall with a plurality of holes and a means to attach one segment to a second segment whereby the length of the filter core unit can be varied by adding and subtracting segments. A method of... | 05/25/1999 |
| 5876072 | Tube connection in particular for connecting two tubular elements of the airframe of a missile In a tube connection, particularly for connecting two tubular elements of the airframe of a substantially tubular a missile, the tubular elements to be interconnected have end portions of substantially identical shapes. Each end portion has a smaller-diam... | 03/02/1999 |
| 5868443 | Anti-rotation pipe joint Mechanical pipe connections are provided by this invention which include an interlocking system between two pipes to be connected within a tubular fitting member. The interlocking system includes male and female portions which mechanically mesh together t... | 02/09/1999 |
| 5865124 | Table attachment for lawn chairs and the like An improved table attachment for lawn chairs and the like comprising a gripping foot having a pair of semi-cylindrical members which are frictionally engageable to clamp about a leg of a chair on which the table attachment is to be mounted, one of the sem... | 02/02/1999 |
| 5788214 | Device for connecting a adhesive foam can to a gun for applying adhesive foams A device for connecting a adhesive foam can to a gun for the application of adhesive foam includes fastening means for fastening the connecting device to the gun, and an external thread for fastening the connecting device to the foam can, and a closing de... | 08/04/1998 |
| 5667253 | Device for connecting a feed off and return tube to a container for liquids A device for connecting at least a feed off and return tube to a bung-hole of a container for liquids and the like having threads at its inner periphery, said device comprising a cylindrical insert having threads at its outer periphery co-operating with t... | 09/16/1997 |
| 5622392 | Panel mounted feed through connector assembly A panel mounted feed-through connector assembly for interconnecting flexible pneumatic hose lines, such as used on air brakes for trucks and other vehicles, has a rigid plate with a plurality of apertures, and a separate and removable feed-through connect... | 04/22/1997 |
| 5433490 | Cooker die removably securing mechanism Mechanism (10) for removably securing a die (22) to the flange (18) of a discharge (14) of a cooker (12) is disclosed including first and second connector rings (30, 56). The first connector ring (30) is rotatably mounted to the flange (18) of the cooker ... | 07/18/1995 |
| 5431507 | Bicycle torque coupling A torque transmitting, bicycle frame coupling which connects to the frame tubes, replacing a portion of those tubes and having teeth on their engaging faces. Proper installation of two such couplings allows up to a 25 inch men's style bicycle with up to 7... | 07/11/1995 |
| 5349738 | Attachment methodology for composite cylinder assembly Cylinder-to-cylinder attachment method and construction featuring nonutiltion of mechanical fasteners or bonding, especially advantageous for attachment of cylinders which are composite or to be subjected to hydrostatic pressure. A fastening ring is inte... | 09/27/1994 |
| 5306052 | Tubing union with a torque transfer fitting In a compression type union for compressing two tubing segments against an intervening washer, a male nut, a female nut, and a pair of caps, the caps having interengaging tongues and slots. The nuts bear against respective caps, and the caps bear against ... | 04/26/1994 |
| 5295506 | Flow control apparatus A flow control apparatus having a pair of substantially identical housings, each having a path for fluid passage therethrough bounded by an annulus; a resilient body; and substantially identical portions borne by the housings releasably engageable to inte... | 03/22/1994 |
| 5288114 | Attachment methodology for composite cylinder assembly Cylinder-to-cylinder attachment method and construction featuring nonutilization of mechanical fasteners or bonding, especially advantageous for attachment of cylinders which are composite or to be subjected to hydrostatic pressure. A fastening ring is in... | 02/22/1994 |
| 5048871 | Screwed pipe joint A screwed pipe joint with a bell for connecting two pipes of a drill pipe string. The screwed pipe joint includes, in opposed relation, a first pipe having a first tapered threaded end (10) and a second pipe having a second tapered threaded end (11), the ... | 09/17/1991 |
| 5007490 | Progressive cavity drive train with elastomeric joint assembly for use in downhole drilling A downhole drilling apparatus which includes a progressive cavity drive train comprising a progressive cavity device and a coupling for converting the complex motion of the rotor into simple rotation. The coupling includes two shafts coupled to one anothe... | 04/16/1991 |
| 4940262 | Cable strain relief A band (or eyelet) (16 or 17) is crimped onto a cable (12) so as to form at least one flange (18 or 19). The flange (18 or 19) is received in a slot between fingers (23) of a receptacle (20) so as to provide both longitudinal and rotational strain relief.... | 07/10/1990 |
| 4821818 | Tube auger sections The present invention comprises first and second auger sections having upper and lower ends. The lower end of the first auger section is detachably secured to the upper end of the second auger section. The lower end of the first auger section includes a c... | 04/18/1989 |
| 4733442 | Connecting apparatus for lines A connecting apparatus having a pair of connector elements each having an end piece to which a line, such as a rope or a cable etc. is connected, and which has a complemental opposed end face so as to come into contact with each other without relative rot... | 03/29/1988 |
| 4718568 | Fuel filler member for vehicles A fuel filler member for vehicles is disposed between and fluidly connects a fuel filler inlet on the vehicle with the vehicle fuel tank. The fuel member includes a first corrugated filler pipe placing the inlet and tank in fluid communication, and a seco... | 01/12/1988 |
| 4702503 | Coupling between at least two members to be subjected to high thermal stress A coupling is provided wherein each of two members to be coupled are provided with a series of centering elements for preventing decentering of the two members during periods of thermal change. Inner and outer centering elements are provided on each membe... | 10/27/1987 |
| 4676563 | Apparatus for coupling multi-conduit drill pipes Apparatus for coupling multi-conduit drill pipes to maintain arcuate registry between connected pipes, and for transferring the drive torque of one drill pipe to the next drill pipe. One end of one drill pipe (50) includes drive lugs (100) matable with co... | 06/30/1987 |
