Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4569542 | Pipe coupling A pipe coupling for the joining of plain end pipe that includes an annular gasket and a compressible lock ring at each end of the coupling between a tubular middle ring and an annular follower. Bolts extending between the opposite followers are effective ... | 02/11/1986 |
| 4568114 | Threaded pipe connector A connector assembly for establishing a fluid type connection with a pipe or tube having a body member with a bore for receiving the tube, a nut which is in threaded engagement on the body member and an intermediate ring compressed between the nut and the... | 02/04/1986 |
| 4563328 | Nuclear reactor fuel assembly A nuclear reactor fuel assembly with two support plates and a holding rod connecting the two support plates rigidly with mutual spacing, the holding rod having a longitudinal axis passing through both support plates, and being held at one end in a lead-th... | 01/07/1986 |
| 4541537 | Fluid tight seal for container A seal for a container having a straight cylindrical neck with an opening in the neck includes an upper sealing member which fits over the top of the neck and down a portion of the cylindrical surface of the neck. The top sealing member has a tapered edge... | 09/17/1985 |
| 4529231 | Flat-face tube connector The invention pertains to a fitting for tubes wherein a flat face fitting having a sealing face perpendicular to the fitting axis may be sealed to a metallic tube without modification to the tube. An annular ferrule mounted upon the tube includes a head h... | 07/16/1985 |
| 4463974 | Coupling with improved tube-gripping member A coupling of the type including a flexible tube, an interiorly threaded nut member apertured to receive the tube, a cooperating exteriorly threaded nipple member, a pair of O-ring seals, and a separate tube-gripping member. The tube-gripping member inclu... | 08/07/1984 |
| 4458927 | Ferrules seals A device is provided for sealing an inner tube and an outer tube without excessively deforming the tubes. The device includes two ferrules which cooperate to form a vacuum-tight seal between the inner tube and outer tube and having mating surfaces such th... | 07/10/1984 |
| 4457541 | Pipe coupling The pipe coupling has an annular flange member having a tapered inner surface portion and a plurality of holes therethrough. Bolts project through the holes. A pipe-engageable collet is mounted in the flange member and has a tapered outer surface portion ... | 07/03/1984 |
| 4455041 | Heat recoverable composite coupling device with tapered insert Described herein are heat recoverable composite couplings comprising an outer, tubular heat-shrinkable sleeve and a hollow insert member adapted to receive plural substrates. The insert member has a tapered surface to allow it to accommodate substrates of... | 06/19/1984 |
| 4437691 | Connector for corrugated tubing A connector for connecting corrugated tubing to pipes or fittings permits the corrugated tubing to be used without any modification to its ends. The corrugated tubing need only be cut to length by severing at a "valley" of one of the corrugations. A ferru... | 03/20/1984 |
| 4372587 | Adapter flange Flange for attaching a pipe to a flanged member, the flange consisting of a split disc having matching bore halves which are provided with peripheral serrations.... | 02/08/1983 |
| 4355828 | Universal plastic flange for connecting urinals to drain pipes A universal plastic economical connection for the art of connecting urinals to drain pipes which will eliminate the conventional time consuming and relatively costly steps required of the prior art. This connection will readily fit two-inch (2") diameter ... | 10/26/1982 |
| 4342519 | Connector for an end of an underwater pipe A device for connecting two underwater pipes, one prolonged by a terminal and the other by a receptacle for the terminal. The device comprises separate, reversible means for securing and sealing the terminal in the receptacle, and also comprises a tension... | 08/03/1982 |
| 4335907 | Meter connection apparatus Meter connection apparatus including a generally semicircular conduit portion with substantially parallel straight conduit portions extending from the ends of the semicircular conduit portion, the semicircular conduit portion having a radius which is a pl... | 06/22/1982 |
| 4309050 | Pipe fittings, and in particular for high pressure fluid pipes The present invention relates to improvements in pipe fittings and in particular to fittings for high pressure fluid pipes, the said fittings of the crimping ring type comprising a rigid body provided with a bore and, at one of its ends, a threaded outer ... | 01/05/1982 |
| 4296950 | Corrosion resistant pipe joint Pipe joint components such as a metallic sleeve and companion nut of a compression-type pipe coupling are externally coated with a corrosion-resistant polymeric plastic. In a preferred embodiment the coating on the female of the components extends as a fl... | 10/27/1981 |
| 4295668 | Adapter for connecting plastic pipe system to cast iron pipe system An adapter for connecting a plastic pipe system to a metallic pipe system; including an elongated, plastic sleeve having a first end thereof adapted to be joined to a plastic pipe system and a second end thereof adapted to be joined to a metallic pipe sys... | 10/20/1981 |
| 4294475 | Flexible pipe connector A flexible pipe connector which makes use of a pair of intermediate sleeves each having one end portion overlapped with and connected through a rubber-like elastic body to a connection pipe, each of said intermediate sleeves being coaxially arranged with ... | 10/13/1981 |
| 4291903 | Connector for tubing A connector is described for joining tubes together, particularly plastics tubing as used in laboratories and the like. The connector comprises a first member having a barb-like projection through which the tube can be pushed but cannot be pulled in the revers... | 09/29/1981 |
| 4281679 | Flow control means for use in an adaptor assembly An adaptor assembly for connecting a tubing with either a male or female fitting is disclosed. Flow control means within the adaptor assembly comprise an important feature of the disclosed and preferred embodiment wherein the flow control means comprises ... | 08/04/1981 |
| 4258944 | Split slip nut and seal assembly for plumbing trap For a plumbing trap, such as under a sink or other similar installations, a split slip nut and seal assembly for joining two tubular members such as pipes or tubes one within the other; wherein a split seal is inserted between the tubes laterally and then... | 03/31/1981 |
| 4230349 | Joint A coupling forming a connection between two elements or fittings, at least one of which has a cylindrical, or multifaced, outer surface, including in longitudinal section, a flexible beam member and a nose portion which, under application of a force in di... | 10/28/1980 |
| 4188051 | Tube coupling A preassembled tube coupling into which a tube may be inserted and which automatically grips the tube to prevent withdrawal of the tube. The coupling includes a packing ring for sealing the tube, a sleeve with spring fingers to lightly grip the tube upon ... | 02/12/1980 |
| 4183561 | Separation-prevented pipe joint which can be assembled from inside pipe The open end inner periphery of a socket is provided with an annular groove, and at a suitable sufficient distance from the annular groove axially toward the innermost side of the socket a seal member stopping projection extends from the inner surface of ... | 01/15/1980 |
| 4178020 | Locking slip joint and method of use A locking slip joint has primary utility in the making up of a tie-in in pipeline laying and repair operations. In a preferred embodiment the slip joint comprises an inner sleeve telescopically received within an outer sleeve. Means for locking the sleeve... | 12/11/1979 |
| 4176866 | Standardized gland assembly for cable connections This improved gland assembly is primarily for use with mineral insulated cables. The same gland body and lock nut is used for cables regardless of the cable diameter. The dimensions of the compression ring are the same, except for the ring bore, which mat... | 12/04/1979 |
| 4136897 | Coupling device for tubular members A coupling device includes a nut releasably engaging a body which receives a tubular member. A sleeve which attaches to the nut telescopes over the tubular member and includes grooves for gripping the tubular member and an undercut recess for carrying a s... | 01/30/1979 |
| 4103942 | Seal for submersible pipe swivel A submersible large diameter pipe swivel is provided with seal means which is designed and adapted to allow small radial and axial relative movements (wobble) between the pipe and the swivel joint, while maintaining full integrity of the seal and which, b... | 08/01/1978 |
| 4082326 | Compressible member for use in compression joint pipe connector A re-useable compression type pipe connector comprises threaded male and female portions, a retaining ring and a sealing ring. The retaining ring has a hollow, truncated cone-shaped body portion with a plurality of circumferentially spaced-apart slits whi... | 04/04/1978 |
| 4043576 | Threaded pipe coupling for smooth plastic joints A coupling for smooth pipe includes a housing, a sleeve nut threaded onto the housing, a gasket inside the housing and a thrust and locking ring structure within and between the housing and sleeve nut. The housing has a tapered inner surface to compress t... | 08/23/1977 |
| 4037864 | Pipe coupling This invention relates to a compression joint of the type used to connect the end of a piece of compressible pipe to a corporation fitting such as a curb stop, a main stop or a ball valve. The pipe is usually soft copper the wall of which is compressible,... | 07/26/1977 |
| 4000918 | Ferrule for liquid tight flexible metal conduit A ferrule is used together with other components to couple a liquid tight fitting to flexible metal conduit. To assure secure coupling, the ferrule must be fully engaged with the flexible metal conduit. Full engagement of the ferrule is not always obtaine... | 01/04/1977 |
| 3992043 | Tube fitting Disclosed herein is an improved tube fitting of the swage variety which employs a body part, at least one ferrule designed to slip around a tube, and a nut used to compress the ferrule against the tube and the body part and thereby form a leak-tight conne... | 11/16/1976 |
| 3986730 | Pipe fittings The present invention relates to a pipe fitting comprising a cylindrical body, a radially deformable locking piece, a seal and a compression ring which is maintained fast with the body, while being free to slide axially with respect thereto. The ring defi... | 10/19/1976 |
| 3977708 | Plastic tube fitting and joint An injection molded fluorocarbon resin plastic fitting for connection with plastic tubes preferably of fluorocarbon resinous material, the fitting including a sleeve with internal tube-receiving bore flared at the end of the sleeve, a plastic nut with a f... | 08/31/1976 |
| 3970337 | Conduit coupling structure An improvement is disclosed in a tube coupling device including first and second threadedly engageable coupling members and an annular sleeve received on the tube and having an end engageable with one of the members and contractible about the tube upon as... | 07/20/1976 |
| 3957295 | Pipe coupling seal A pipe coupling device includes an externally threaded first tubular coupling element engaged by an internally threaded second tubular element provided with an outer axially bored end wall and an annular nylon sealing member entrapped between the second e... | 05/18/1976 |
| 3941410 | Pipe joint construction A sealed, vibration resistant, non-separating joint construction connects the plug end of one pipe to the socket end of another pipe. A split lock ring, recessed in an internal groove in the the plug end before insertion of the plug into the socket, is th... | 03/02/1976 |
